|
|
Title:
Methods for deactivating allergens and preventing disease
United States Patent: 7,527,783
Issued: May 5, 2009
Inventors: Shaheen; Elias
A. (Pleasanton, CA), Bromberg; Steven (Pleasanton, CA), Friedman; Vicki
(Oakland, CA), Fung; Jennifer (Oakland, CA), Julian; Jennifer C.
(Pleasanton, CA)
Assignee: The Clorox
Company (Oakland, CA)
Appl. No.: 10/806,522
Filed: March 23, 2004
|
|
|
Pharm Bus Intell
& Healthcare Studies
|
Abstract
This invention relates to articles of
manufacture containing liquid compositions of hypohalous acid or
hypohalous acid salt for deactivating allergens and preventing diseases on
hard surfaces, soft surfaces and in the air. The articles of manufacture
contain usage instructions with health claims. This invention also
includes methods of instructing the public and promoting the use of these
compositions.
Description of the
Invention
SUMMARY OF THE INVENTION
In accordance with the above objects and those that will be mentioned and
will become apparent below, one aspect of the present invention is an
article of manufacture comprising: a. a container enclosing a liquid
composition; b. a set of instructions; and c. a liquid composition
comprising an allergen deactivating agent selected from the group consisting
of a hypohalous acid, a hypohalous acid salt, and a combination thereof; d.
wherein said set of instructions comprises instructions to contact targets
selected from the group consisting of hard surfaces, soft surfaces, and air
with said liquid composition in its neat or diluted form to accomplish a
result selected from the group consisting of; to prevent allergic response,
to prevent illness, and a combination thereof.
In accordance with the above objects and those that will be mentioned and
will become apparent below, another aspect of the present invention
comprises a method of instructing the public by providing to the public a
set of instructions for the use of an article of manufacture comprising: a.
a container, and b. a liquid composition comprising an allergen deactivating
agent selected from the group consisting of a hypohalous acid, a hypohalous
acid salt, and a combination thereof; c. wherein said set of instructions
comprises instructions to contact targets selected from the group consisting
of hard surfaces, soft surfaces, and air with said liquid composition in its
neat or diluted form to accomplish a result selected from the group
consisting of; to prevent allergic response, to prevent illness, and a
combination thereof.
In accordance with the above objects and those that will be mentioned and
will become apparent below, another aspect of the present invention
comprises a method of promoting the use of a liquid composition comprising
an allergen deactivating agent selected from a group consisting of a
hypohalous acid, a hypohalous acid salt, and a combination thereof: the
method comprising the steps of; a. informing the public to treat targets
selected from a group consisting of hard surfaces, soft surfaces, air, and a
combination thereof, and b. informing the public that said treatment of said
targets with said liquid composition accomplishes a result selected from the
group consisting of; preventing allergic response, preventing illness, and a
combination thereof.
In accordance with the above objects and those that will be mentioned and
will become apparent below, another aspect of the present invention
comprises an in vivo test method for testing allergic response in animals,
wherein said test method comprises the subcutaneous injection of allergens
treated with a composition selected from a group consisting of a hypohalous
acid, a hypohalous acid salt, and a combination thereof.
Further features and advantages of the present invention will become
apparent to those of ordinary skill in the art in view of the detailed
description of preferred embodiments below.
DETAILED DESCRIPTION
Before describing the present invention in detail, it is to be understood
that this invention is not limited to particularly exemplified systems or
process parameters that may, of course, vary. It is also to be understood
that the terminology used herein is for the purpose of describing particular
embodiments of the invention only, and is not intended to limit the scope of
the invention in any manner.
All publications, patents and patent applications cited herein, whether
supra or infra, are hereby incorporated by reference in their entirety to
the same extent as if each individual publication, patent or patent
application was specifically and individually indicated to be incorporated
by reference.
It must be noted that, as used in this specification and the appended
claims, the singular forms "a," "an" and "the" include plural referents
unless the content clearly dictates otherwise. Thus, for example, reference
to a "surfactant" includes two or more such surfactants.
Unless defined otherwise, all technical and scientific terms used herein
have the same meaning as commonly understood by one of ordinary skill in the
art to which the invention pertains. Although a number of methods and
materials similar or equivalent to those described herein can be used in the
practice of the present invention, the preferred materials and methods are
described herein.
In the application, effective amounts are generally those amounts listed as
the ranges or levels of ingredients in the descriptions, which follow
hereto. Unless otherwise stated, amounts listed in percentage ("%'s") are in
weight percent (based on 100% active) of the cleaning composition alone, not
accounting for the substrate weight. Each of the noted cleaner composition
components and substrates is discussed in detail below.
As used herein, the term "substrate" is intended to include any web, which
is used to clean an article or a surface. Examples of cleaning sheets
include, but are not limited to, mitts, webs of material containing a single
sheet of material which is used to clean a surface by hand or a sheet of
material which can be attached to a cleaning implement, such as a floor mop,
handle, or a hand held cleaning tool, such as a toilet cleaning device.
As used herein, "wiping" refers to any shearing action that the substrate
undergoes while in contact with a target surface. This includes hand or body
motion, substrate-implement motion over a surface, or any perturbation of
the substrate via energy sources such as ultrasound, mechanical vibration,
electromagnetism, and so forth.
The term "cleaning composition", as used herein, is meant to mean and
include a cleaning formulation having at least one surfactant.
The term "surfactant", as used herein, is meant to mean and include a
substance or compound that reduces surface tension when dissolved in water
or water solutions, or that reduces interfacial tension between two liquids,
or between a liquid and a solid. The term "surfactant" thus includes
anionic, nonionic and/or amphoteric agents.
Hypohalous Acid and Salts
Suitable hypohalous acids and salts may be provided by a variety of sources,
including compositions that lead to the formation of positive halide ions
and/or hypohalite ions, as well as compositions that are organic based
sources of halides, such as chloroisocyanurates, haloamines, haloimines,
haloimides and haloamides, or mixtures thereof. These compositions may also
produce hypohalous acid or hypohalite species in situ. Suitable hypohalous
acids and salts for use herein include the alkali metal and alkaline earth
metal hypochlorites, hypobromites, hypoiodites, chlorinated trisodium
phosphate dodecahydrates, potassium and sodium dichloroisocyanurates,
potassium and sodium trichlorocyanurates, N-chloroimides, N-chloroamides, N-chlorosulfamide,
N-chloroamines, chlorohydantoins such as dichlorodimethyl hydantoin and
chlorobromo dimethylhydantoin, bromo-compounds corresponding to the chloro-compounds
above, and compositions which generate the corresponding hypohalous acids,
or mixtures thereof.
In one embodiment wherein the compositions herein are liquid, said
hypohalite compositions is an alkali metal and/or alkaline earth metal
hypochlorite, or mixtures thereof. Compositions may be an alkali metal
and/or alkaline earth metal hypochlorite selected from the group consisting
of sodium hypochlorite, potassium hypochlorite, magnesium hypochlorite,
lithium hypochlorite and calcium hypochlorite, and mixtures thereof.
The hypohalous acids and salt composition may be an equilibrium mixture of
hypochlorous acid and sodium hypochlorite. The active species is present in
an amount from above zero to about 15 weight percent of the composition, or
from about 0.001 weight percent (10 ppm) to about 10 weight percent of the
composition, or from about 0.005 (50 ppm) to about 5 weight percent of the
composition.
The amount of available halogen oxidant in the composition is determined by
placing samples of the composition into about 50 milliliters of distilled
water, followed by addition of about 10 milliliters of a 10 weight/weight
percent solution of potassium iodide and addition of about 10 milliliters of
a 10 volume percent solution of sulfuric acid, the resulting mixture being
well stirred. The resulting yellow to brown solution, whose color is the
result of oxidation of free iodine ion (I.sup.-) to molecular iodine
(I.sub.2), was then volumetrically titrated to an essentially colorless
endpoint by addition of standardized 0.1 Molar sodium thiosulfate
(Na.sub.2S.sub.2O.sub.3) titrant. Calculation then expresses the result as
percent of available molecular chlorine (Cl.sub.2), that is to say assigning
two equivalents per mole of titrated hypohalite oxidant. Stability results
are then expressed by repeated assays over time using identically prepared
samples resulting from the same composition, normalized to 100 percent
representative of the starting available chlorine measured initially.
During the course of evaluating various oxidants and antimicrobials for
their allergen deactivating ability, we have found that a very dilute
solution (on the order of 40-80 ppm) of primarily hypochlorous acid can
effectively deactivate allergens. Presumably the low levels of oxidant are
still able to break up the allergen proteins, rendering them biologically
inert.
While still extremely effective, the low concentration and nearly neutral pH
(6.9) of hypochlorous virtually eliminates surface damage. There is no
sticky residue that can affect the feel of fabrics and there may be minimal
dye damage. The solution may be aerosolized to treat air directly, or
applied to surfaces.
Aerosols are known to have a low collision rate between denaturant and
allergen particles. As a result, the denaturant must be used in high
concentrations to be effective. Using this approach with conventional
denaturants, which may be irritating or fragranced at high levels, can cause
health problems.
Nonwoven Substrate
In one embodiment, the substrate of the present invention is composed of
nonwoven fibers or paper. The term nonwoven is to be defined according to
the commonly known definition provided by the "Nonwoven Fabrics Handbook"
published by the Association of the Nonwoven Fabric Industry.
Methods of making nonwovens are well known in the art. Generally, these
nonwovens can be made by air-laying, water-laying, meltblowing, coforming,
spunbonding, or carding processes in which the fibers or filaments are first
cut to desired lengths from long strands, passed into a water or air stream,
and then deposited onto a screen through which the fiber- laden air or water
is passed. The air-laying process is described in U.S. Pat. App.
2003/0036741 to Abba et al. and U.S. Pat. App. 2003/0118825 to Melius et al.
The resulting layer, regardless of its method of production or composition,
is then subjected to at least one of several types of bonding operations to
anchor the individual fibers together to form a self-sustaining substrate.
In the present invention the nonwoven substrate can be prepared by a variety
of processes including, but not limited to, air-entanglement,
hydroentanglement, thermal bonding, and combinations of these processes.
In one aspect, dry cleaning substrates can be provided with dry or
substantially dry cleaning or disinfecting agents coated on or in the
multicomponent, multilobal fiber layer. In addition, the cleaning substrates
can be provided in a pre-moistened and/or saturated condition. The wet
cleaning substrates can be maintained over time in a sealable container such
as, for example, within a bucket with an attachable lid, sealable plastic
pouches or bags, canisters, jars, tubs and so forth. Desirably the wet,
stacked cleaning substrates are maintained in a resealable container. The
use of a resealable container is particularly desirable when using volatile
liquid compositions since substantial amounts of liquid can evaporate while
using the first substrates thereby leaving the remaining substrates with
little or no liquid. Exemplary resealable containers and dispensers include,
but are not limited to, those described in U.S. Pat. No. 4,171,047 to Doyle
et al., U.S. Pat. No. 4,353,480 to McFadyen, U.S. Pat. No. 4,778,048 to
Kaspar et al., U.S. Pat. No. 4,741,944 to Jackson et al., U.S. Pat. No.
5,595,786 to McBride et al.; the entire contents of each of the aforesaid
references are incorporated herein by reference. The cleaning substrates can
be incorporated or oriented in the container as desired and/or folded as
desired in order to improve ease of use or removal as is known in the art.
The cleaning substrates of the present invention can be provided in a kit
form, wherein a plurality of cleaning substrates and a cleaning tool are
provided in a single package.
Surfactants
The composition of the invention may contain surfactants. The surfactants
should be stable to hypohalous acid or hypohalous acid salt if long term
storage is desired. If the solutions of the composition are generated prior
to use, then surfactants having less stability may be used. Examples of
surfactants having relatively good stability can be found in U.S. Pat. Nos.
6,413,925 and 5,851,421.
The composition may contain one or more surfactants selected from anionic,
nonionic, cationic, ampholytic, amphoteric and zwitterionic surfactants and
mixtures thereof. A typical listing of anionic, nonionic, ampholytic, and
zwitterionic classes, and species of these surfactants, is given in U.S.
Pat. No. 3,929,678 to Laughlin and Heuring. A list of suitable cationic
surfactants is given in U.S. Pat. No. 4,259,217 to Murphy. Where present,
ampholytic, amphotenic and zwitteronic surfactants are generally used in
combination with one or more anionic and/or nonionic surfactants. The
surfactants may be present at a level of from about 0% to 90%, or from about
0.001% to 50%, or from about 0.01% to 25% by weight.
The composition may comprise an anionic surfactant. Essentially any anionic
surfactants useful for detersive purposes can be comprised in the cleaning
composition. These can include salts (including, for example, sodium,
potassium, ammonium, and substituted ammonium salts such as mono-, di- and
tri-ethanolamine salts) of the anionic sulfate, sulfonate, carboxylate and
sarcosinate surfactants. Anionic surfactants may comprise a sulfonate or a
sulfate surfactant. Anionic surfactants may comprise an alkyl sulfate, a
linear or branched alkyl benzene sulfonate, or an alkyldiphenyloxide
disulfonate, as described herein.
Other anionic surfactants include the isethionates such as the acyl
isethionates, N-acyl taurates, fatty acid amides of methyl tauride, alkyl
succinates and sulfosuccinates, monoesters of sulfosuccinate (for instance,
saturated and unsaturated C12-C18 monoesters) diesters of sulfosuccinate
(for instance saturated and unsaturated C6-C14 diesters), N-acyl
sarcosinates. Resin acids and hydrogenated resin acids are also suitable,
such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin
acids present in or derived from tallow oil. Anionic sulfate surfactants
suitable for use herein include the linear and branched primary and
secondary alkyl sulfates, alkyl ethoxysulfates, fatty oleoyl glycerol
sulfates, alkyl phenol ethylene oxide ether sulfates, the
C5-C17acyl-N--(C1-C4 alkyl) and --N--(C1-C2 hydroxyalkyl) glucamine
sulfates, and sulfates of alkylpolysacchanides such as the sulfates of
alkylpolyglucoside (the nonionic nonsulfated compounds being described
herein). Alkyl sulfate surfactants may be selected from the linear and
branched primary C10-C18 alkyl sulfates, the C11-C15 branched chain alkyl
sulfates, or the C12-C14 linear chain alkyl sulfates.
Alkyl ethoxysulfate surfactants may be selected from the group consisting of
the C10-C18 alkyl sulfates which have been ethoxylated with from 0.5 to 20
moles of ethylene oxide per molecule. The alkyl ethoxysulfate surfactant may
be a C11-C18, or a C11-C15 alkyl sulfate which has been ethoxylated with
from 0.5 to 7, or from 1 to 5, moles of ethylene oxide per molecule. One
aspect of the invention employs mixtures of the alkyl sulfate and/or
sulfonate and alkyl ethoxysulfate surfactants. Such mixtures have been
disclosed in PCT Patent Application No. WO 93/18124.
Anionic sulfonate surfactants suitable for use herein include the salts of
C5-C20 linear alkylbenzene sulfonates, alkyl ester sulfonates, C6-C22
primary or secondary alkane sulfonates, C6-C24 olefin sulfonates, sulfonated
polycarboxylic acids, alkyl glycerol sulfonates, fatty acyl glycerol
sulfonates, fatty oleyl glycerol sulfonates, and any mixtures thereof.
Suitable anionic carboxylate surfactants include the alkyl ethoxy
carboxylates, the alkyl polyethoxy polycarboxylate surfactants and the soaps
(`alkyl carboxyls`), especially certain secondary soaps as described herein.
Suitable alkyl ethoxy carboxylates include those with the formula
RO(CH.sub.2CH.sub.20).sub.xCH.sub.2COO .sup.-M.sup.+ wherein R is a C6 to
C18 alkyl group, x ranges from 0 to 10, and the ethoxylate distribution is
such that, on a weight basis, the amount of material where x is 0 is less
than 20% and M is a cation. Suitable alkyl polyethoxypolycarboxylate
surfactants include those having the formula
RO--(CHR.sup.1--CHR.sup.2-0)--R.sup.3 wherein R is a C6 to C18 alkyl group,
x is from 1 to 25, R.sup.1 and R.sup.2 are selected from the group
consisting of hydrogen, methyl acid radical, succinic acid radical,
hydroxysuccinic acid radical, and mixtures thereof, and R.sup.3 is selected
from the group consisting of hydrogen, substituted or unsubstituted
hydrocarbon having between 1 and 8 carbon atoms, and mixtures thereof.
Suitable soap surfactants include the secondary soap surfactants, which
contain a carboxyl unit connected to a secondary carbon. Suitable secondary
soap surfactants for use herein are water-soluble members selected from the
group consisting of the water-soluble salts of 2-methyl-1-undecanoic acid,
2-ethyl-1-decanoic acid, 2-propyl-1-nonanoic acid, 2-butyl-1-octanoic acid
and 2-pentyl-1-heptanoic acid. Certain soaps may also be included as suds
suppressors.
Other suitable anionic surfactants are the alkali metal sarcosinates of
formula R--CON(R.sup.1)CH--)COOM, wherein R is a C5-C17 linear or branched
alkyl or alkenyl group, R.sup.1 is a C1-C4 alkyl group and M is an alkali
metal ion. Examples are the myristyl and oleoyl methyl sarcosinates in the
form of their sodium salts.
Essentially any alkoxylated nonionic surfactants are suitable herein, for
instance, ethoxylated and propoxylated nonionic surfactants. Alkoxylated
surfactants can be selected from the classes of the nonionic condensates of
alkyl phenols, nonionic ethoxylated alcohols, nonionic ethoxylated/propoxylated
fatty alcohols, nonionic ethoxylate/propoxylate condensates with propylene
glycol, and the nonionic ethoxylate condensation products with propylene
oxide/ethylene diamine adducts.
The condensation products of aliphatic alcohols with from 1 to 25 moles of
alkylene oxide, particularly ethylene oxide and/or propylene oxide, are
suitable for use herein. The alkyl chain of the aliphatic alcohol can either
be straight or branched, primary or secondary, and generally contains from 6
to 22 carbon atoms. Also suitable are the condensation products of alcohols
having an alkyl group containing from 8 to 20 carbon atoms with from 2 to 10
moles of ethylene oxide per mole of alcohol.
Polyhydroxy fatty acid amides suitable for use herein are those having the
structural formula R.sup.2CONR.sup.1Z wherein: R.sup.1 is H, C1-C4
hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, ethoxy, propoxy, or a mixture
thereof, for instance, C1-C4 alkyl, or C1 or C2 alkyl; and R.sup.2 is a
C5-C31 hydrocarbyl, for instance, straight-chain C5-C19 alkyl or alkenyl, or
straight-chain C9-C 17 alkyl or alkenyl, or straight-chain C11-C17 alkyl or
alkenyl, or mixture thereof-, and Z is a polyhydroxyhydrocarbyl having a
linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the
chain, or an alkoxylated derivative (for example, ethoxylated or
propoxylated) thereof Z may be derived from a reducing sugar in a reductive
amination reaction, for example, when Z is a glycityl.
Suitable fatty acid amide surfactants include those having the formula:
R.sup.1CON(R.sup.2).sub.2 wherein R.sup.1 is an alkyl group containing from
7 to 21, or from 9 to 17 carbon atoms and each R.sup.2 is selected from the
group consisting of hydrogen, C1-C4 alkyl, C1-C4 hydroxyalkyl, and
--(C.sub.2H.sub.4O).sub.xH, where x is in the range of from 1 to 3.
Suitable alkylpolysaccharides for use herein are disclosed in U.S. Pat. No.
4,565,647 to Llenado, having a hydrophobic group containing from 6 to 30
carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group
containing from 1.3 to 10 saccharide units. Alkylpolyglycosides may have the
formula: R.sup.2O(C.sub.nH.sub.2nO).sub.t(glycosyl).sub.x wherein R.sup.2 is
selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl,
hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain
from 10 to 18 carbon atoms; n is 2 or 3; t is from 0 to 10, and x is from
1.3 to 8. The glycosyl may be derived from glucose.
Suitable amphoteric surfactants for use herein include the amine oxide
surfactants and the alkyl amphocarboxylic acids. Suitable amine oxides
include those compounds having the formula R.sup.3(OR.sup.4).sub.xNO(R.sup.5
).sub.2 wherein R.sup.3 is selected from an alkyl, hydroxyalkyl,
acylamidopropyl and alkylphenyl group, or mixtures thereof, containing from
8 to 26 carbon atoms; R.sup.4 is an alkylene or hydroxyalkylene group
containing from 2 to 3 carbon atoms, or mixtures thereof, x is from 0 to 5,
preferably from 0 to 3; and each R.sup.5 is an alkyl or hydroxyalkyl group
containing from 1 to 3, or a polyethylene oxide group containing from 1 to 3
ethylene oxide groups. Suitable amine oxides are C10-C18 alkyl dimethylamine
oxide, and C10-18 acylamido alkyl dimethylamine oxide. A suitable example of
an alkyl amphodicarboxylic acid is Miranol(TM) C2M Conc. manufactured by
Miranol, Inc., Dayton, N.J.
Zwitterionic surfactants can also be incorporated into the cleaning
compositions. These surfactants can be broadly described as derivatives of
secondary and tertiary amines, derivatives of heterocyclic secondary and
tertiary amines, or derivatives of quaternary ammonium, quaternary
phosphoniurn or tertiary sulfonium compounds. Betaine and sultaine
surfactants are exemplary zwittenionic surfactants for use herein.
Suitable betaines are those compounds having the formula
R(R.sup.1).sub.2N.sup.+R.sup.2COO.sup.- wherein R is a C6-C18 hydrocarbyl.
group, each R.sup.1 is typically C1-C3 alkyl, and R.sup.2 is a C1-C5
hydrocarbyl group. Suitable betaines are C12-18 dimethyl-ammonio hexanoate
and the C10-18 acylamidopropane (or ethane) dimethyl (or diethyl) betaines.
Complex betaine surfactants are also suitable for use herein.
Suitable cationic surfactants to be used herein include the quaternary
ammonium surfactants. The quaternary ammonium surfactant may be a mono
C6-C16, or a C6-C10 N-alkyl or alkenyl ammonium surfactant wherein the
remaining N positions are substituted by methyl, hydroxyethyl or
hydroxypropyl groups. Suitable are also the mono-alkoxylated and
bis-alkoxylated amine surfactants.
Another suitable group of cationic surfactants, which can be used in the
cleaning compositions, are cationic ester surfactants. The cationic ester
surfactant is a compound having surfactant properties comprising at least
one ester (i.e. --COO--) linkage and at least one cationically charged
group. Suitable cationic ester surfactants, including choline ester
surfactants, have for example been disclosed in U.S. Pat. Nos. 4,228,042,
4,239,660 and 4,260,529. The ester linkage and cationically charged group
may be separated from each other in the surfactant molecule by a spacer
group consisting of a chain comprising at least three atoms (i.e. of three
atoms chain length), or from three to eight atoms, or from three to five
atoms, or three atoms. The atoms forming the spacer group chain are selected
from the group consisting, of carbon, nitrogen and oxygen atoms and any
mixtures thereof, with the proviso that any nitrogen or oxygen atom in said
chain connects only with carbon atoms in the chain. Thus spacer groups
having, for example, --O--O-- (i.e. peroxide), --N--N--, and --N--O--
linkages are excluded, whilst spacer groups having, for example
--CH.sub.2--O--, CH.sub.2-- and --CH.sub.2--NH--CH.sub.2-- linkages are
included. The spacer group chain may comprise only carbon atoms, or the
chain is a hydrocarbyl chain.
The composition may comprise cationic mono-alkoxylated amine surfactants,
for instance, of the general formula:
R.sup.1R.sup.2R.sup.3N.sup.+ApR.sup.4X.sup.- wherein R.sup.1 is an alkyl or
alkenyl moiety containing from about 6 to about 18 carbon atoms, or from 6
to about 16 carbon atoms, or from about 6 to about 14 carbon atoms; R.sup.2
and R.sup.3 are each independently alkyl groups containing from one to about
three carbon atoms, for instance, methyl, for instance, both R.sup.2 and
R.sup.3 are methyl groups; R.sup.4 is selected from hydrogen, methyl and
ethyl; X.sup.- is an anion such as chloride, bromide, methylsulfate,
sulfate, or the like, to provide electrical neutrality; A is a alkoxy group,
especially a ethoxy, propoxy or butoxy group; and p is from 0 to about 30,
or from 2 to about 15, or from 2 to about 8. The ApR.sup.4 group in the
formula may have p=1 and is a hydroxyalkyl group, having no greater than 6
carbon atoms whereby the --OH group is separated from the quaternary
ammonium nitrogen atom by no more than 3 carbon atoms. Suitable ApR.sup.4
groups are --CH.sub.2CH.sub.2--OH, --CH.sub.2CH.sub.2CH.sub.2--OH,
--CH.sub.2CH(CH.sub.3)--OH and --CH(CH.sub.3)CH.sub.2--OH. Suitable R.sup.1
groups are linear alkyl groups, for instance, linear R.sup.1 groups having
from 8 to 14 carbon atoms.
Suitable cationic mono-alkoxylated amine surfactants for use herein are of
the formula R.sup.1(CH.sub.3)(CH.sub.3)N.sup.+(CH.sub.2CH.sub.20).sub.2-5H
X.sup.- wherein R.sup.1 is C10-C18 hydrocarbyl and mixtures thereof,
especially C10-C14 alkyl, or C10 and C12 alkyl, and X is any convenient
anion to provide charge balance, for instance, chloride or bromide.
As noted, compounds of the foregoing type include those wherein the ethoxy
(CH.sub.2CH.sub.2O) units (EO) are replaced by butoxy, isopropoxy
[CH(CH.sub.3)CH.sub.2O] and [CH.sub.2CH(CH.sub.3)O] units (i-Pr) or n-propoxy
units (Pr), or mixtures of EO and/or Pr and/or i-Pr units.
The cationic bis-alkoxylated amine surfactant may have the general formula:
R.sup.1R.sup.2N.sup.+ApR.sup.3A'qR.sup.4 X.sup.- wherein R.sup.1 is an alkyl
or alkenyl moiety containing from about 8 to about 18 carbon atoms, or from
10 to about 16 carbon atoms, or from about 10 to about 14 carbon atoms;
R.sup.2 is an alkyl group containing from one to three carbon atoms, for
instance, methyl; R.sup.3 and R.sup.4 can vary independently and are
selected from hydrogen, methyl and ethyl, X.sup.- is an anion such as
chloride, bromide, methylsulfate, sulfate, or the like, sufficient to
provide electrical neutrality. A and A' can vary independently and are each
selected from C1-C4 alkoxy, for instance, ethoxy, (i.e.,
--CH.sub.2CH.sub.2O--), propoxy, butoxy and mixtures thereof, p is from 1 to
about 30, or from 1 to about 4 and q is from 1 to about 30, or from 1 to
about 4, or both p and q are 1.
Suitable cationic bis-alkoxylated amine surfactants for use herein are of
the formula R.sup.1CH.sub.3N.sup.+(CH.sub.2CH.sub.2OH)(CH.sub.2CH.sub.2OH)
X.sup.-, wherein R.sup.1 is C10-C18 hydrocarbyl and mixtures thereof, or
C10, C12, C14 alkyl and mixtures thereof, X.sup.- is any convenient anion to
provide charge balance, for example, chloride. With reference to the general
cationic bis-alkoxylated amine structure noted above, since in one example
compound R.sup.1 is derived from (coconut) C12-C14 alkyl fraction fatty
acids, R.sup.2 is methyl and ApR.sup.3 and A'qR.sup.4 are each monoethoxy.
Other cationic bis-alkoxylated amine surfactants useful herein include
compounds of the formula:
R.sup.1R.sup.2N.sup.+--(CH.sub.2CH.sub.2O).sub.pH--(CH.sub.2CH.sub.2O).su-
b.qH X.sup.- wherein R.sup.1 is C10-C18 hydrocarbyl, or C10-C14 alkyl,
independently p is 1 to about 3 and q is 1 to about 3, R.sup.2 is C1-C3
alkyl, for example, methyl, and X.sup.- is an anion, for example, chloride
or bromide.
Other compounds of the foregoing type include those wherein the ethoxy
(CH.sub.2CH.sub.2O) units (EO) are replaced by butoxy (Bu) isopropoxy
[CH(CH.sub.3)CH.sub.2O] and [CH.sub.2CH(CH.sub.3)O] units (i-Pr) or n-propoxy
units (Pr), or mixtures of EO and/or Pr and/or i-Pr units.
The inventive compositions may include at least one fluorosurfactant
selected from nonionic fluorosurfactants, cationic fluorosurfactants, and
mixtures thereof which are soluble or dispersible in the aqueous
compositions being taught herein, sometimes compositions which do not
include further detersive surfactants, or further organic solvents, or both.
Suitable nonionic fluorosurfactant compounds are found among the materials
presently commercially marketed under the tradename Fluorad.RTM. (ex. 3M
Corp.) Exemplary fluorosurfactants include those sold as Fluorad.RTM.
FC-740, generally described to be fluorinated alkyl esters; Fluorad.RTM.
FC-430, generally described to be fluorinated alkyl esters; Fluorad.RTM.
FC-431, generally described to be fluorinated alkyl esters; and, Fluorad.RTM.
FC-170-C, which is generally described as being fluorinated alkyl
polyoxyethlene ethanols.
Suitable nonionic fluorosurfactant compounds include those which is believed
to conform to the following formulation:
C.sub.nF.sub.2n+1SO.sub.2N(C.sub.2H.sub.5)(CH.sub.2CH.sub.2O).sub.xCH.sub-
.3 wherein: n has a value of from 1-12, or from 4-12, or 8; x has a value of
from 4-18, or from 4-10, or 7; which is described to be a nonionic
fluorinated alkyl alkoxylate and which is sold as Fluorad.RTM. FC-171 (ex.
3M Corp., formerly Minnesota Mining and Manufacturing Co.).
Additionally suitable nonionic fluorosurfactant compounds are also found
among the materials marketed under the tradename ZONYL.RTM. (DuPont
Performance Chemicals). These include, for example, ZONYL.RTM. FSO and
ZONYL.RTM. FSN. These compounds have the following formula:
RfCH.sub.2CH.sub.2O(CH.sub.2CH.sub.2O).sub.xH where Rf is
F(CF.sub.2CF.sub.2).sub.y. For ZONYL.RTM. FSO, x is 0 to about 15 and y is 1
to about 7. For ZONYL.RTM. FSN, x is 0 to about 25 and y is 1 to about 9.
An example of a suitable cationic fluorosurfactant compound has the
following structure:
C.sub.nF.sub.2n+1SO.sub.2NHC.sub.3H.sub.6N.sup.+(CH.sub.3).sub.3I.sup.-
where n.about.8. This cationic fluorosurfactant is available under the
tradename Fluorad.RTM. FC-135 from 3M. Another example of a suitable
cationic fluorosurfactant is
F.sub.3--(CF.sub.2).sub.n--(CH.sub.2).sub.mSCH.sub.2CHOH--CH.sub.2--N.sup-
.+ R.sub.1R.sub.2R.sub.3C1.sup.- wherein: n is 5-9 and m is 2, and R.sub.1,
R.sub.2 and R.sub.3 are --CH.sub.3. This cationic fluorosurfactant is
available under the tradename ZONYL.RTM. FSD (available from DuPont,
described as
2-hydroxy-3-((gamma-omega-perfluoro-C.sub.6-20-alkyl)thio)-N,N,N-trimethy-
l-1-propyl ammonium chloride). Other cationic fluorosurfactants suitable for
use in the present invention are also described in EP 866,115 to Leach and
Niwata.
The fluorosurfactant selected from the group of nonionic fluorosurfactant,
cationic fluorosurfactant, and mixtures thereof may be present in amounts of
from 0.001 to 5% wt., preferably from 0.01 to 1% wt., and more preferably
from 0.01 to 0.5% wt.
Solvent
The composition of the invention may contain solvents. The solvents should
be stable to hypohalous acid or hypohalous acid salt if long term storage is
desired. If the solutions of the composition are generated prior to use,
then solvents having less stability may be used.
Suitable organic solvents include, but are not limited to, C.sub.1-6
alkanols, C.sub.1-6 diols, C.sub.1-10alkyl ethers of alkylene glycols,
C.sub.3-24alkylene glycol ethers, polyalkylene glycols, short chain
carboxylic acids, short chain esters, isoparafinic hydrocarbons, mineral
spirits, alkylaromatics, terpenes, terpene derivatives, terpenoids,
terpenoid derivatives, formaldehyde, and pyrrolidones. Alkanols include, but
are not limited to, methanol, ethanol, n-propanol, isopropanol, butanol,
pentanol, and hexanol, and isomers thereof. Diols include, but are not
limited to, methylene, ethylene, propylene and butylene glycols. Alkylene
glycol ethers include, but are not limited to, ethylene glycol monopropyl
ether, ethylene glycol monobutyl ether, ethylene glycol monohexyl ether,
diethylene glycol monopropyl ether, diethylene glycol monobutyl ether,
diethylene glycol monohexyl ether, propylene glycol methyl ether, propylene
glycol ethyl ether, propylene glycol n-propyl ether, propylene glycol
monobutyl ether, propylene glycol t-butyl ether, di- or tri-polypropylene
glycol methyl or ethyl or propyl or butyl ether, acetate and propionate
esters of glycol ethers. Short chain carboxylic acids include, but are not
limited to, acetic acid, glycolic acid, lactic acid and propionic acid.
Short chain esters include, but are not limited to, glycol acetate, and
cyclic or linear volatile methylsiloxanes. Water insoluble solvents such as
isoparafinic hydrocarbons, mineral spirits, alkylaromatics, terpenoids,
terpenoid derivatives, terpenes, and terpenes derivatives can be mixed with
a water-soluble solvent when employed.
Examples of organic solvent having a vapor pressure less than 0.1 mm Hg
(20.degree. C.) include, but are not limited to, dipropylene glycol n-propyl
ether, dipropylene glycol t-butyl ether, dipropylene glycol n-butyl ether,
tripropylene glycol methyl ether, tripropylene glycol n-butyl ether,
diethylene glycol propyl ether, diethylene glycol butyl ether, dipropylene
glycol methyl ether acetate, diethylene glycol ethyl ether acetate, and
diethylene glycol butyl ether acetate (all available from ARCO Chemical
Company).
The solvents can be present at a level of from 0.001% to 10%, or from 0.01%
to 10%, or from 1% to 4% by weight.
Additional Adjuncts
The compositions optionally contain one or more of the following adjuncts:
stain and soil repellants, lubricants, odor control agents, perfumes,
fragrances and fragrance release agents, brighteners, and fluorescent
whitening agents. Other adjuncts include, but are not limited to, acids,
electrolytes, dyes and/or colorants, solubilizing materials, stabilizers,
thickeners, defoamers, hydrotropes, cloud point modifiers, preservatives,
and other polymers. The solubilizing materials, when used, include, but are
not limited to, hydrotropes (e.g. water soluble salts of low molecular
weight organic acids such as the sodium and/or potassium salts of toluene,
cumene, and xylene sulfonic acid). The acids, when used, include, but are
not limited to, mineral acids, organic hydroxy acids, citric acids, keto
acid, and the like. Electrolytes, when used, include, calcium, sodium and
potassium chloride. Thickeners, when used, include, but are not limited to,
polyacrylic acid, xanthan gum, calcium carbonate, aluminum oxide, alginates,
guar gum, methyl, ethyl, clays, and/or propyl hydroxycelluloses. Defoamers,
when used, include, but are not limited to, silicones, aminosilicones,
silicone blends, and/or silicone/hydrocarbon blends.
Preservatives, when used, include, but are not limited to, mildewstat or
bacteriostat, methyl, ethyl and propyl parabens, short chain organic acids
(e.g. acetic, lactic and/or glycolic acids), bisguanidine compounds (e.g.
Dantagard and/or Glydant) and/or short chain alcohols (e.g. ethanol and/or
IPA). The mildewstat or bacteriostat includes, but is not limited to,
mildewstats (including non-isothiazolone compounds) including Kathon GC, a
5-chloro-2-methyl-4-isothiazolin-3-one, KATHON ICP, a
2-methyl-4-isothiazolin-3-one, and a blend thereof, and KATHON 886, a
5-chloro-2-methyl-4-isothiazolin-3-one, all available from Rohm and Haas
Company; BRONOPOL, a 2-bromo-2-nitropropane 1, 3 diol, from Boots Company
Ltd., PROXEL CRL, a propyl-p-hydroxybenzoate, from ICI PLC; NIPASOL M, an
o-phenyl-phenol, Na.sup.+ salt, from Nipa Laboratories Ltd., DOWICIDE A, a
1,2-Benzoisothiazolin-3-one, from Dow Chemical Co., and IRGASAN DP 200, a
2,4,4'-trichloro-2-hydroxydiphenylether, from Ciba-Geigy A.G.
Antimicrobial Agent
The composition of the invention may contain antimicrobial agents. The
antimicrobial agents should be stable to hypohalous acid or hypohalous acid
salt if long term storage is desired. If the solutions of the composition
are generated prior to use, then antimicrobial agents having less stability
may be used.
Antimicrobial agents include quaternary ammonium compounds and phenolics.
Non-limiting examples of these quaternary compounds include benzalkonium
chlorides and/or substituted benzalkonium chlorides, di(C.sub.6-
C.sub.14)alkyl di short chain (C.sub.1-4 alkyl and/or hydroxyalkl)
quaternaryammonium salts, N-(3-chloroallyl) hexaminium chlorides,
benzethonium chloride, methylbenzethonium chloride, and cetylpyridinium
chloride. Other quaternary compounds include the group consisting of
dialkyldimethyl ammonium chlorides, alkyl dimethylbenzylaru-nonium
chlorides, dialkylmethylbenzylammonium chlorides, and mixtures thereof.
Biguanide antimicrobial actives including, but not limited to
polyhexamethylene biguanide hydrochloride, p-chlorophenyl biguanide;
4-chlorobenzhydryl biguanide, halogenated hexidine such as, but not limited
to, chlorhexidine (1,1'-hexamethylene -bis-5-(4-chlorophenyl biguanide) and
its salts are also in this class.
Builder/Buffer
The composition of the invention may contain a builder or buffer. The
builder or buffer should be stable to hypohalous acid or hypohalous acid
salt if long term storage is desired. If the solutions of the composition
are generated prior to use, then builders or buffers having less stability
may be used.
The composition may include a builder or buffer, which can be used as a pH
adjusting agent or as a sequestering agent in the composition. A variety of
builders or buffers can be used and they include, but are not limited to,
phosphate-silicate compounds, carbon dioxide or carbonate, zeolites, alkali
metal, ammonium and substituted ammonium polyacetates, trialkali salts of
nitrilotriacetic acid, carboxylates, polycarboxylates, carbonates,
bicarbonates, polyphosphates, aminopolycarboxylates, polyhydroxysulfonates,
and starch derivatives.
Builders or buffers can also include polyacetates and polycarboxylates. The
polyacetate and polycarboxylate compounds include, but are not limited to,
sodium, potassium, lithium, ammonium, and substituted ammonium salts of
ethylenediamine tetraacetic acid, ethylenediamine triacetic acid,
ethylenediaamine tetrapropionic acid, diethylenetriamine pentaacetic acid,
nitrilotriacetic acid, oxydisuccinic acid, iminodisuccinic acid, mellitic
acid, polyacrylic acid or polymethacrylic acid and copolymers, benzene
polycarboxylic acids, gluconic acid, sulfamic acid, oxalic acid, phosphoric
acid, phosphonic acid, organic phosphonic acids, acetic acid, and citric
acid. These builders or buffers can also exist either partially or totally
in the hydrogen ion form.
The builder agent can include sodium and/or potassium salts of EDTA and
substituted ammonium salts. The substituted ammonium salts include, but are
not limited to, ammonium salts of methylamine, dimethylamine, butylamine,
butylenediamine, propylamine, triethylamine, trimethylamine,
monoethanolamine, diethanolamine, triethanolamine, isopropanolamine,
ethylenediamine tetraacetic acid and propanolamine.
Buffering and pH adjusting agents, when used, include, but are not limited
to, organic acids, mineral acids, alkali metal and alkaline earth salts of
silicate, metasilicate, polysilicate, borate, hydroxide, carbonate,
carbamate, phosphate, polyphosphate, pyrophosphates, triphosphates,
tetraphosphates, ammonia, hydroxide, monoethanolamine, monopropanolamine,
diethanolamine, dipropanolamine, triethanolamine, and
2-amino-2methylpropanol. Preferred buffering agents for compositions of this
invention are nitrogen-containing materials. Some examples are amino acids
such as lysine or lower alcohol amines like mono-, di-, and
tri-ethanolamine. Other preferred nitrogen-containing buffering agents are
tri(hydroxymethyl) amino methane (TRIS), 2-amino-2-ethyl-1,3-propanediol,
2-amino-2-methyl-propanol, 2-amino 2-methyl-1,3-propanol, disodium
glutamate, N-methyl diethanolamide, 2-dimethylamino-2-methylpropanol (DMAMP),
1,3-bis(methylamine)-cyclohexane, 1,3-diamino-propanol N,N'-tetra-methyl-1,3-diamino-2-propanol,
N,N-bis(2-hydroxyethyl)glycine (bicine) and N-tris(hydroxymethyl)methyl
glycine (tricine). Other suitable buffers include ammonium carbamate, citric
acid, acetic acid. Mixtures of any of the above are also acceptable. Useful
inorganic buffers/alkalinity sources include ammonia, the alkali metal
carbonates and alkali metal phosphates, e.g., sodium carbonate, sodium
polyphosphate. For additional buffers see WO 95/07971, which is incorporated
herein by reference. Other preferred pH adjusting agents include sodium or
potassium hydroxide.
When employed, the builder, buffer, or pH adjusting agent comprises at least
about 0.001% and typically about 0.01-5% of the cleaning composition.
Preferably, the builder or buffer content is about 0.01-2%.
Substances Generally Recognized as Safe
Compositions according to the invention may comprise substances-generally
recognized as safe (GRAS), including essential oils, oleoresins
(solvent-free) and natural extractives (including distillates), and
synthetic flavoring materials and adjuvants. Compositions may also comprise
GRAS materials commonly found in cotton, cotton textiles, paper and
paperboard stock dry food packaging materials (referred herein as
substrates) that have been found to migrate to dry food and, by inference
may migrate into the inventive compositions when these packaging materials
are used as substrates for the inventive compositions.
The composition of the invention may contain GRAS materials. The GRAS
materials should be stable to hypohalous acid or hypohalous acid salt if
long term storage is desired. If the solutions of the composition are
generated prior to use, then GRAS materials having less stability may be
used.
Suitable GRAS materials are listed in the Code of Federal Regulations (CFR)
Title 21 of the United States Food and Drug Administration, Department of
Health and Human Services, Parts 180.20, 180.40 and 180.50, which are hereby
incorporated by reference. These suitable GRAS materials include essential
oils, oleoresins (solvent-free), and natural extractives (including
distillates). The GRAS materials may be present in the compositions in
amounts of up to about 10% by weight, preferably in amounts of 0.01 and 5%
by weight.
Suitable GRAS materials include oils and oleoresins (solvent-free) and
natural extractives (including distillates) derived from alfalfa, allspice,
almond bitter (free from prussic acid), ambergris, ambrette seed, angelica,
angostura (cusparia bark), anise, apricot kernel (persic oil), asafetida,
balm (lemon balm), balsam (of Peru), basil, bay leave, bay (myrcia oil),
bergamot (bergamot orange), bois de rose (Aniba rosaeodora Ducke), cacao,
camomile (chamomile) flowers, cananga, capsicum, caraway, cardamom seed (cardamon),
carob bean, carrot, cascarilla bark, cassia bark, Castoreum, celery seed,
cheery (wild bark), chervil, cinnamon bark, Civet (zibeth, zibet, zibetum),
ceylon (Cinnamomum zeylanicum Nees), cinnamon (bark and leaf), citronella,
citrus peels, clary (clary sage), clover, coca (decocainized), coffee,
cognac oil (white and green), cola nut (kola nut), coriander, cumin (cummin),
curacao orange peel, cusparia bark, dandelion, dog grass (quackgrass,
triticum), elder flowers, estragole (esdragol, esdragon, estragon,
tarragon), fennel (sweet), fenugreek, galanga (galangal), geranium, ginger,
grapefruit, guava, hickory bark, horehound (hoarhound), hops, horsemint,
hyssop, immortelle (Helichrysum augustifolium DC), jasmine, juniper
(berries), laurel berry and leaf, lavender, lemon, lemon grass, lemon peel,
lime, linden flowers, locust bean, lupulin, mace, mandarin (Citrus
reticulata Blanco), marjoram, mate, menthol (including menthyl acetate),
molasses (extract), musk (Tonquin musk), mustard, naringin, neroli (bigarade),
nutmeg, onion, orange (bitter, flowers, leaf, flowers, peel), origanum,
palmarosa, paprika, parsley, peach kernel (persic oil, pepper (black,
white), peanut (stearine), peppermint, Peruvian balsam, petitgrain lemon,
petitgrain mandarin (or tangerine), pimenta, pimenta leaf, pipsissewa
leaves, pomegranate, prickly ash bark, quince seed, rose (absolute, attar,
buds, flowers, fruit, hip, leaf), rose geranium, rosemary, safron, sage, St.
John's bread, savory, schinus molle (Schinus molle L), sloe berriers,
spearmint, spike lavender, tamarind, tangerine, tarragon, tea (Thea sinensis
L.), thyme, tuberose, turneric, vanilla, violet (flowers, leaves), wild
cherry bark, ylang-ylang and zedoary bark.
Suitable synthetic flavoring substances and adjuvants are listed in the Code
of Federal Regulations (CFR) Title 21 of the United States Food and Drug
Administration, Departmnent of Health and Human Services, Part 180.60, which
is hereby incorporated by reference. These GRAS materials may be present in
the compositions in amounts of up to about 1% by weight, preferably in
amounts of 0.01 and 0.5% by weight.
Suitable synthetic flavoring substances and adjuvants that are generally
recognized as safe for their intended use, include acetaldehyde (ethanal),
acetoin (acetyl methylcarbinol), anethole (parapropenyl anisole),
benzaldehyde (benzoic aldehyde), n-Butyric acid (butanoic acid), d- or
1-carvone (carvol), cinnamaldehyde (cinnamic aldehyde), citral
(2,6-dimethyloctadien-2,6-al-8, gera-nial, neral), decanal (N-decylaldehyde,
capraldehyde, capric aldehyde, caprinaldehyde, aldehyde C-10), ethyl
acetate, ethyl butyrate, 3-Methyl-3-phenyl glycidic acid ethyl ester
(ethyl-methyl-phenyl-glycidate, so-called strawberry aldehyde, C-16 aldehyde),
ethyl vanillin, geraniol (3,7-dimethyl-2,6 and 3,6-octadien-1-ol), geranyl
acetate (geraniol acetate), limonene (d-,l-, and dl-), linalool (linalol,
3,7-dimethyl-1,6-octadien-3-ol), linalyl acetate (bergamol), methyl
anthranilate (methyl-2-aminobenzoate), piperonal
(3,4-methylenedioxy-benzaldehyde, heliotropin) and vanillin.
Suitable GRAS substances that may be present in the inventive compositions
that have been identified as possibly migrating to food from cotton, cotton
textiles, paper and paperboard materials used in dry food packaging
materials are listed in the Code of Federal Regulations (CFR) Title 21 of
the United States Food and Drug Administration, Department of Health and
Human Services, Parts 180.70 and 180.90, which are hereby incorporated by
reference. The GRAS materials may be present in the compositions either by
addition or incidentally owing to migration from the substrates to the
compositions employed in the invention, or present owing to both mechanisms.
If present, the GRAS materials may be present in the compositions in amounts
of up to about 1% by weight.
Suitable GRAS materials that are suitable for use in the invention,
identified as originating from either cotton or cotton textile materials
used as substrates in the invention, include beef tallow,
carboxymethylcellulose, coconut oil (refined), cornstarch, gelatin, lard,
lard oil, oleic acid, peanut oil, potato starch, sodium acetate, sodium
chloride, sodium silicate, sodium tripolyphosphate, soybean oil
(hydrogenated), talc, tallow (hydrogenated), tallow flakes, tapioca starch,
tetrasodium pyrophosphate, wheat starch and zinc chloride.
Suitable GRAS materials that are suitable for use in the invention,
identified as originating from either paper or paperboard stock materials
used as substrates in the invention, include alum (double sulfate of
aluminum and ammonium potassium, or sodium), aluminum hydroxide, aluminum
oleate, aluminum palmitate, casein, cellulose acetate, cornstarch,
diatomaceous earth filler, ethyl cellulose, ethyl vanillin, glycerin, oleic
acid, potassium sorbate, silicon dioxides, sodium aluminate, sodium
chloride, sodium hexametaphosphate, sodium hydrosulfite, sodium
phosphoaluminate, sodium silicate, sodium sorbate, sodium tripolyphosphate,
sorbitol, soy protein (isolated), starch (acid modified, pregelatinized and
unmodified), talc, vanillin, zinc hydrosulfite and zinc sulfate.
Fragrance
The composition of the invention may contain fragrance. The fragrance should
be stable to hypohalous acid or hypohalous acid salt if long term storage is
desired. If the solutions of the composition are generated prior to use,
then fragrances having less stability may be used.
Compositions of the present invention may comprise from about 0.001% to
about 5% by weight of the fragrance. Compositions of the present invention
may comprise from about 0.005% to about 2.5% by weight of the fragrance.
Compositions of the present invention may comprise from about 0.01% to about
1% by weight of the fragrance.
As used herein the term "fragrance" relates to the mixture of perfume raw
materials that are used to impart an overall pleasant odor profile to a
composition. As used herein the term "perfume raw material" relates to any
chemical compound which is odiferous when in an un-entrapped state, for
example in the case of pro-perfumes, the perfume component is considered,
for the purposes of this invention, to be a perfume raw material, and the
pro-chemistry anchor is considered to be the entrapment material. In
addition "perfume raw materials" are defined by materials with a ClogP value
preferably greater than about 0.1, more preferably greater than about 0.5,
even more preferably greater than about 1.0. As used herein the term "ClogP"
means the logarithm to base 10 of the octanol/water partition coefficient.
This can be readily calculated from a program called "CLOGP" which is
available from Daylight Chemical Information Systems Inc., Irvine Calif.,
U.S.A. Octanol/water partition coefficients are described in more detail in
U.S. Pat. No. 5,578,563.
The individual perfume raw materials which comprise a known natural oil can
be found by reference to Journals commonly used by those skilled in the art
such as "Perfume and Flavourist" or "Journal of Essential Oil Research". In
addition some perfume raw materials are supplied by the fragrance houses as
mixtures in the form of proprietary specialty accords. In order that
fragrance oils can be developed with the appropriate character for the
present invention the perfume raw materials have been classified based upon
two key physical characteristics:
(i) boiling point (BP) measured at 1 atmosphere pressure. The boiling point
of many fragrance materials are given in Perfume and Flavor Chemicals (Aroma
Chemicals), Steffen Arctander (1969). Perfume raw materials for use in the
present invention are divided into volatile raw materials (which have a
boiling point of less than, or equal to, about 250.degree. C.) and residual
raw materials (which have a boiling point of greater than about 250.degree.
C., preferably greater than about 275.degree. C.). All perfume raw materials
will preferably have boiling points (BP) of about 500.degree. C. or lower.
(ii) odor detection threshold which is defined as the lowest vapor
concentration of that material which can be olfactorily detected. The odor
detection threshold and some odor detection threshold values are discussed
in e.g., "Standardized Human Olfactory Thresholds", M. Devos et al, IRL
Press at Oxford University Press, 1990, and "Compilation of Odor and Taste
Threshold Values Data", F. A. Fazzalar, editor ASTM Data Series DS 48A,
American Society for Testing and Materials, 1978, both of said publications
being incorporated by reference. Perfume raw materials for use in the
present invention can be classified as those with a low odor detection
threshold of less than 50 parts per billion, preferably less than 10 parts
per billion and those with a high odor detection threshold which are
detectable at greater than 50 parts per billion (values as determined from
the reference above).
Since, in general, perfume raw materials refer to a single individual
compound, their physical properties (such ClogP, boiling point, odor
detection threshold) can be found by referencing the texts cited above. In
the case that the perfume raw material is a natural oil, which comprises a
mixture of several compounds, the physical properties of the complete oil
should be taken as the weighted average of the individual components. In the
case that the perfume raw material is a proprietary specialty accord the
physical properties should be obtain from the Supplier.
In general a broad range of suitable perfume raw materials can be found in
U.S. Pat. Nos. 4,145,184, 4,209,417, 4,515,705, and 4,152,272. Non-limiting
examples of perfume raw materials which are useful for blending to formulate
fragrances for the present invention are given below. Any perfume raw
materials, natural oils or proprietary specialty accords known to a person
skilled in the art can be used within the present invention.
Volatile perfume raw materials useful in the present invention are selected
from, but are not limited to, aldehydes with a relative molecular mass of
less than or equal to about 200, esters with a relative molecular mass of
less than or equal to about 225, terpenes with a relative molecular mass of
less than or equal to about 200, alcohols with a relative molecular mass of
less than or equal to about 200 ketones with a relative molecular mass of
less than or equal to about 200, nitrites, pyrazines, and mixtures thereof.
Examples of volatile perfume raw materials having a boiling point of less
than, or equal to, 250.degree. C., with a low odor detection are selected
from, but are not limited to, anethol, methyl heptine carbonate, ethyl aceto
acetate, para cymene, nerol, decyl aldehyde, para cresol, methyl phenyl
carbinyl acetate, ionone alpha, ionone beta, undecylenic aldehyde, undecyl
aldehyde, 2,6-nonadienal, nonyl aldehyde, octyl aldehyde. Further examples
of volatile perfume raw materials having a boiling point of less than, or
equal to, 250.degree. C., which are generally known to have a low odor
detection threshold include, but are not limited to, phenyl acetaldehyde,
anisic aldehyde, benzyl acetone, ethyl-2- methyl butyrate, damascenone,
damascone alpha, damascone beta, flor acetate, frutene, fructone, herbavert,
iso cyclo citral, methyl isobutenyl tetrahydro pyran, iso propyl quinoline,
2,6-nonadien-1-ol, 2-methoxy-3-(2-methylpropyl)-pyrazine, methyl octine
carbonate, tridecene-2- nitrile, allyl amyl glycolate, cyclogalbanate,
cyclal C, melonal, gamma nonalactone, cis 1,3-oxathiane-2-methyl-4-propyl.
Other volatile perfume raw materials having a boiling point of less than, or
equal to, 250.degree. C., which are useful in the present invention, which
have a high odor detection threshold, are selected from, but are not limited
to, benzaldehyde, benzyl acetate, camphor, carvone, bomeol, bomyl acetate,
decyl alcohol, eucalyptol, linalool, hexyl acetate, iso-amyl acetate, thymol,
carvacrol, limonene, menthol, iso-amyl alcohol, phenyl ethyl alcohol, alpha
pinene, alpha terpineol, citronellol, alpha thujone, benzyl alcohol, beta
gamma hexenol, dimethyl benzyl carbinol, phenyl ethyl dimethyl carbinol,
adoxal, allyl cyclohexane propionate, beta pinene, citral, citronellyl
acetate, citronellal nitrile, dihydro myrcenol, geraniol, geranyl acetate,
geranyl nitrile, hydroquinone dimethyl ether, hydroxycitronellal, linalyl
acetate, phenyl acetaldehyde dimethyl acetal, phenyl propyl alcohol, prenyl
acetate, triplal, tetrahydrolinalool, verdox, cis-3-hexenyl acetate.
Examples of residual "middle and base note" perfume raw materials having a
boiling point of greater than 250.degree. C., which have a low odor
detection threshold are selected from, but are not limited to, ethyl methyl
phenyl glycidate, ethyl vanillin, heliotropin, indol, methyl anthranilate,
vanillin, amyl salicylate, coumarin. Further examples of residual perfumie
raw materials having a boiling point of greater than 250.degree. C. which
are generally known to have a low odor detection threshold include, but are
not limited to, ambrox, bacdanol, benzyl salicylate, butyl anthranilate,
cetalox, ebanol, cis-3-hexenyl salicylate, lilial, gamma undecalactone,
gamma dodecalactone, gamma decalactone, calone, cymal, dihydro iso jasmonate,
iso eugenol, lyral, methyl beta naphthyl ketone, beta naphthol methyl ether,
para hydroxyl phenyl butanone, 8-cyclohexadecen-1-one,
oxocyclohexadecen-2-one/habanolide, florhydral, intreleven aldehyde.
Other residual "middle and base note" perfume raw materials having a boiling
point of greater than 250.degree. C. which are useful in the present
invention, but which have a high odor detection threshold, are selected
from, but are not limited to, eugenol, amyl cinnamic aldehyde, hexyl
cinnamic aldehyde, hexyl salicylate, methyl dihydro jasmonate, sandalore,
veloutone, undecavertol, exaltolide/cyclopentadecanolide, zingerone, methyl
cedrylone, sandela, dimethyl benzyl carbinyl butyrate, dimethyl benzyl
carbinyl isobutyrate, triethyl citrate, cashmeran, phenoxy ethyl isobutyrate,
iso eugenol acetate, helional, iso E super, ionone gamma methyl, pentalide,
galaxolide, phenoxy ethyl propionate.
Water and pH
The water should be present at a level of less than about 99.999%. The water
may be deionized, filtered to remove impurities including metals and organic
carbon, purified by reverse osmosis, purified by distillation, or any
combination thereof. During preparation there may be a need for hygiene and
segregation to prevent the introduction of compounds that are oxidized by
hypochlorite since these become more important at low concentrations where
the loss of a few ppm may be significant.
The composition may be adjusted for pH using a pH adjusting agent. Suitable
pH adjusting agents include carbon dioxide, alkali metal carbonate, alkali
metal bicarbonate, alkali metal silicates, alkali metal hydroxide, alkali
phosphate salt, alkaline earth phosphate salt, alkali borate salt,
hydrochloric acid, nitric acid, sulfuric acid, alkali metal hydrogen
sulfate, acetic acid, other carboxylic acids, polycarboxylates, organic
sulfonic acids, sulfamic acid, amine, alkyl amine, dialkyl amine, and
trialkyl amine. The composition may have a pH from 1 to 13. The composition
may have a pH from 2 to 12. The composition may have a pH from 2 to 5. The
composition may have a pH from 5 to 8. The composition may have a pH from 6
to 8. The composition may have a pH from 6 to 7.5. The composition may have
a pH from 9 to 13. The composition may have a pH from 10 to 12.
Method of Use
The composition may be dispersed into the air. The composition may be
dispersed using an atomizer, a vaporizer, a nebulizer, or a spray device.
The composition may be delivered on a continuous basis, such as with a
humidifier. The composition may be delivered on a pulsed basis, such as with
a canister on a timer. One spray device is an electrostatic sprayer, as
described in WO0120988. The composition may be applied to skin surfaces. The
composition may be delivered from a variety of containers, such as a dual
chambered bottle, a trigger spray bottle, an aerosol canister, and a bleach
pen.
The composition may be stored or shipped in a variety of containers,
including glass, ABS, polycarbonate, high density polyethylene, low density
polyethylene, high density polypropylene, low density polypropylene,
polyethylene terephthalate, or polyvinylchloride. A variety of additives may
affect the stability of the composition. For instance, the density of the
polyethylene resin may be modified by co-polymerizing with a small amount of
a short chain alkylene, e.g., butene, hexene or octene. Various other
additives can be added, such as colorants, UV blockers, opacifying agents,
and antioxidants, such as hindered phenols, e.g., BHT, Irganox 1010
(Ciba-Geigy A.G.), Irganox 1076 (Ciba-Geigy A.G.), Ionol (Shell Chemical
Co.). Mold release agents and plasticizers can be added, especially to other
types of plastics. The containers may have barrier films to increase storage
stability. Suitable barrier films may include nylons, polyethylene
terephthalate, fluorinated polyethylenes, and Barex (a copolymer of
acrylonitrile and methylmethacrylate that is available from British
Petroleum).
The composition may be applied to soft surfaces including clothing, bedding,
upholstery, curtains, and carpets. The composition may be applied to soft
surfaces by spraying, by wiping, by direct application, by immersion, or as
part of the laundry washing process.
The composition may be applied to hard surfaces including kitchen surfaces,
bathroom surfaces, walls, floors, outdoor surfaces, automobiles,
countertops, food contact surfaces, toys, food products including fruits and
vegetables. The composition may be applied to hard surfaces by spraying, by
wiping, by direct application, by immersion, or as part of the normal
cleaning process.
The composition may be applied on human and animal surfaces, including
external skin areas and internal cavities. The composition may have lower
skin sensitivity and may be appropriate to be taken orally or by inhalation.
The composition may be applied to human and animal surfaces by spraying, by
wiping, by direct application, by immersion, or as part of the normal
treatment process. The compositon may be applied as a thickened gel. The
composition may be applied using a device to direct its application, such as
a bleach pen. The composition may be applied as a wound dressing.
The composition may be applied with a nonwoven substrate, wipe or cleaning
pad on inanimate, household surfaces, including floors, counter tops,
furniture, windows, walls, and automobiles. The composition may be applied
to baby and children's items, including toys, bottles, pacifiers, etc. The
composition may be applied with a nonwoven substrate, wipe or cleaning pad
on human and animal surfaces, including external skin areas and internal
cavities. Other surfaces include stainless steel, chrome, and shower
enclosures. The nonwoven substrate, wipe or cleaning pad can be packaged
individually or together in canisters, tubs, etc. The nonwoven substrate,
wipe or cleaning pad can be used with the hand, or as part of a cleaning
implement attached to a tool or motorized tool, such as one having a handle.
Examples of tools using a nonwoven substrate, wipe or pad include U.S. Pat.
No. 6,611,986 to Seals, WO00/71012 to Belt et al., U.S. Pat. App.
2002/0129835 to Pieroni and Foley, and WO00/27271 to Policicchio et al.
For certain uses, for example, for human and animal surfaces, the
composition may be thickened. The composition may be thickened using
surfactant thickening, polymer thickening, or other means. Thickening may
allow more controlled application or application from a device. Examples of
thickened and unthickened compositions can be found in U.S. Pat. Nos.
6,162,371, 6,066,614, 6,153,120, 6,037,318, 6,313,082, 5,688,435, 6,413,925,
6,297,209, 6,100,228, 5,916,859, 5,851,421, 5,688,756, 5,767,055, 5,055,219,
and 5,075,029.
The anodic oxidation of chloride in an electrolysis cell results in the
production of a number of oxychlorine ions including hypochlorite, chlorite,
chlorate, and perchlorate. Chlorite is readily oxidized to chlorate.
Perchlorate may be an undesirable contaminant in the environment due to its
low reactivity, high mobility, and inhibition of thyroid function. The
production of hypochlorite via chlorination of caustic water is not believed
to result in the formation of perchlorate. This route may be advantageous
for certain uses where minor amounts of perchlorate would be undesirable.
The composition may be prepared by mixing a solid composition with water.
The solid composition may be a tablet, granular composition, paste, or other
solid composition. The composition may be prepared by diluting a liquid
composition with water. The water may be purified. The composition may be
prepared by mixing two liquids, for example, from a dual chambered container
or a dual chambered spray bottle.
The compositions of the invention can be diluted prior to use with tap water
or water of higher purity. Preparation of dilute compositions for storage,
for example as pre-diluted in bottles, may require water of higher purity.
This higher purity water can be obtained by a variety of processes,
including for example, distillation, filtering, sodium cation exchange (soft
water), hydrogen cation exchange (deionized water without anion exchange),
reverse osmosis, activated carbon treatment, ultrafiltration, nanofiltration,
electrodialysis, and UV light treatment.
The compositions of the invention can be diluted prior to use from a
concentrated liquid or solid composition. For instance, liquid sodium
hypochlorite optionally containing surfactants or other additives of 5.25%
available chlorine concentration can be diluted to below 500 ppm available
chlorine concentration. Tablets or powders having solid hypochlorite or
hypochlorite generators can be dissolved in water to deliver compositions
below 500 ppm concentration. Examples of compositions that can be diluted
are described in U.S. Pat. Nos. 6,297,209, 6,100,228, 5,851,421, 5,688,756,
5,376,297, 5,034,150, 6,534,465, 6,503,877, 6,416,687, 6,180,583, and
6,051,676.
The compositions of the invention can be delivered as part of a
multi-compartment delivery system, for example as described in U.S. Pat.
Nos. 5,954,213, 5,316,159, WO2004/014760, U.S. Pat. Nos. 6,610,254, and
6,550,694.
The compositions of the invention can be used for a food rinse, for cleaning
food-contact surfaces, and for toxicologically safe cleaning. This may
involve the use of food-safe ingredients, GRAS ingredients, or ingredients
with low toxicologically impact. Methods describing this use and possible
compositions can be found in U.S. Pat. Nos. 6,455,086, 6,313,049, U.S.
2002/0132742, U.S. 2001/0014655, WO99/00025, and U.S. 2002/0151452.
The compositions of the invention can be used to sterilize medical
instruments. Dilute hypochlorite will discolor or degrade tubing and other
sensitive parts to less extent than concentrated hypochlorite. The
compositions may be used in kidney dialysis machines or as an irrigating
agent in endodontic treatment.
The compositions of the invention can be used in agricultural applications,
for example, seed and seedling treatments, dormant sprays for fruit trees,
stored grain treatments, dips or sprays for any post-harvest plant material
and their containers, treatments for soil, either on the land or in
containers, treatments for transportation and storage to market, treatments
for transportation, storage, and display at market (retail or wholesale),
treatments for import and export regulations, and treatments for preventing
the accidental introduction of alien pest organisms. The compositions of the
invention can be used for the meat, poultry, dairy, seafood, and aquaculture
industries, for example, equipment treatments, living quarters treatments,
dips or sprays for eggs and containers, dips or sprays for meat and
containers, treatments for rendering operations, treatments for
transportation and storage to market, treatments for transportation,
storage, and display at market (retail or wholesale), treatments for import
and export regulations, treatments for preventing alien pest organisms from
crossing borders, treating disease on live animals (terrestrial or aquatic),
including udder treatments, and dips or sprays for milking equipment,
transfer lines, and containers. The compositions of the invention can be
used for homeland security, for example, treatments for preventing the
intentional introduction of alien pest organisms or deadly organisms.
The compositions of the invention can be used to preserve and maintain the
freshness of freshly cut flowers and other cut plants. The compositions of
the invention can be used to prevent the build-up of microorganisms that
contribute to the decaying of stems and abscission and scenesing of leaves
and flowers. The compositions of the invention can be used to preserve and
extend the shelf life of freshly cut fruits and vegetables such as cut
melon, cantaloupe, strawberry, potatoes, etc. The compositions of the
invention can be used to eradicate hepatitis virus A from fresh strawberries
and other fruits and vegetables. The compositions of the invention can be
used for in the sprout industry to treat seeds of various plants including
alfalfa, wheat, barely and all other edible plant to control the spread of
food-borne diseases such as Salmonella, E. coli, Campylobacter, etc. The
compositions of the invention can be used in washing and treating shoes that
have been moldy. The compositions of the invention can be used with sponges,
cheese-cloth, paper towel and other non-woven articles to clean and remove
and kill mold, bacteria and viruses from soft and hard surfaces. The
compositions of the invention can be used to control mold in school. The
compositions of the invention can be used as a spray or wipe product. The
compositions of the invention can be used to control the spread of germs on
hard surfaces in school. The compositions of the invention can be used to
control the spread of hepatitis among jails. The compositions of the
invention can be used in laundry to kill germs. The compositions of the
invention can be used in long-term care centers and public gyms, where, for
example, they can be applied as a spray or wipe product on hard surfaces to
kill all germs that are transmitted via environmental surfaces and human.
The compositions of the invention can be used in laundry to disinfect
towels, and other articles that carry germs. The compositions of the
invention can be used for in public areas where, for example, they can be
sprayed on a large scale in parks, streets, public places to control
disease-causing agents such as SARS, calicivirus, enterovirus, FMD, and
other viruses. The compositions of the invention can be used as wipes or
spray to disinfect all environmental surfaces. The compositions of the
invention can be used on ships and cruise ships where, for example, they can
be used to control the spread if norwalk virus, calicivirus, and influenza
virus. The compositions of the invention can be used to control cross
contamination due to Salmonella and Campylobacter. The compositions of the
invention can be used for to protect from biological warfare where, for
example, they can be used to spray on humans, (i.e., army personals, medics,
etc.) in case of potential presence of biological warfare agents such as
Anthrax, BT, Sarin, Small Pox, and SARS, etc. The compositions of the
invention can be used for disinfecting military vehicles, airplanes, and
others. The compositions of the invention can be used to control the
outbreak of Infectious agents where, for example, they can be used to
disinfect airlines (inside and outside), trains, buses and all sort of
transportation means to control the spread of pathogens. The compositions of
the invention can be used for to disinfect shoes (via a wipe of dipping or
spraying) at airports and other ports of entry. The compositions of the
invention can be used to control insects where, for example, they can be
used a spray to kill New Zealand Slug and other slugs or insects. The
compositions of the invention can be used to kill fleas. The compositions of
the invention can be used to control animal and insect pathogens where, for
example, they can be used to control animal and bird viruses on hard
surfaces and soft surfaces. Such viruses include SARS, bird flu virus,
calicivirus, mad cow disease virus, parvovirus, feline viruses, etc. Also,
they can be used to dip teats in to control various pathogens.
The composition may be part of an article of manufacture comprising: a
container enclosing a liquid composition; a set of instructions; and a
liquid composition comprising an allergen neutralizing agent selected from a
group consisting of a hypohalous acid, a hypohalous acid salt, and a
combination thereof; wherein said set of instructions comprises instructions
to contact targets selected from a group consisting of hard surfaces, soft
surfaces, or air with said liquid composition in its neat or diluted form to
prevent allergic response, to prevent illness, or a combination thereof.
The composition may be part of an article of manufacture wherein said
article of manufacture in addition to the usage instructions bears an
additional indication comprising a term selected from the group consisting
of: healthy, healthier, reduce the occurrence of illness, control the spread
of illness in the home, protect your family from illness, keep your home
healthier, keep your family well, break the cycle of illness in the home,
reduce the risk of common illnesses, and combinations thereof.
The composition may be part of an article of manufacture, wherein said
article of manufacture in addition to the usage instructions bears an
additional indication comprising a term selected from the group consisting
of: neutralizes mold allergens, denatures toxins from mold, neutralizes
toxins from mold, neutralizes protein allergens, controls allergens, removes
allergens by cleaning, removes allergens by wiping, removes allergens in the
laundry, reduces respiratory illness, reduces hay fever, reduces
absenteeism, denatures mold allergens, prevents allergenic reactions,
prevents allergenic reaction in humans, prevents allergenic symptoms due to
mold, kills mold, destroys mold spores, destroys mold spores that cause
adverse health effects, proven to prevent mold-triggered allergic
sensitization in humans, proven to prevent mold-triggered allergic
sensitization in animals, reduces the risk of mold-triggered allergic
sensitization, reduces the risk of mold-triggered allergic response,
destroys mold spores that induce allergic symptoms, neutralizes mold
specific antigens, and prevents non-immune inflammatory reactions to mold.
The composition may be part of an article of manufacture. The article of
manufacture may include a set of instructions. The set of instructions may
be used with a method of instructing the public by providing to the public a
set of instructions for the use of an article of manufacture comprising a
container and a liquid composition comprising an allergen neutralizing agent
selected from a group consisting of a hypohalous acid, a hypohalous acid
salt, and a combination thereof; wherein said set of instructions comprises
instructions to contact targets selected from a group consisting of hard
surfaces, soft surfaces, or air with said liquid composition in its neat or
diluted form to prevent allergic response, to prevent illness, or a
combination thereof. The instructions may relate to preventing the spread of
illness with a liquid composition comprising a hypohalous acid salt
composition. The method of instructing the public may include information
that an allergic response represents a response to pollen, dust mite, or
mold allergens. The set of instructions may be provided to the public via
electronic and/or print media. The set of instructions may be posted at the
point of sale adjacent the package. The set of instructions may be posted on
a global computer network at an address associated with products from a
group consisting of said liquid composition, said target surface, or a
combination thereof.
The method of promoting the use of the liquid composition comprising an
allergen neutralizing agent selected from a group consisting of a hypohalous
acid, a hypohalous acid salt, and a combination thereof may include use
instructions to prevent allergic response and/or illness, the method
comprising the step of informing the public that the treatment of targets
selected from a group consisting of hard surfaces, soft surfaces, or air
with said composition reduces and/or prevents allergic response and/or
illness. The method of promoting the use of the composition may include the
step of informing the consumer via electronic and/or print media.
Claim 1 of 4 Claims
1. An in vivo test method for testing
allergic response in animals, wherein said test method comprises the
subcutaneous injection of allergens that had been treated with a
composition selected from a group consisting of a hypohalous acid, a
hypohalous acid salt, and a combination thereof, wherein said composition
has a concentration between 10 and 200 ppm; wherein said allergen is
selected from the group consisting of pollen, mold, pet dander, dust mite,
cockroach and mixtures thereof; and wherein said allergic response is
selected from the group consisting of skin rash, hay fever, sneezing,
runny nose, red eyes and mixtures thereof. ____________________________________________
If you want to learn more
about this patent, please go directly to the U.S.
Patent and Trademark Office Web site to access the full
patent.
|