WO2002050366A1 - Siloxane dry cleaning composition and process - Google Patents
Siloxane dry cleaning composition and process Download PDFInfo
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- WO2002050366A1 WO2002050366A1 PCT/US2001/026665 US0126665W WO0250366A1 WO 2002050366 A1 WO2002050366 A1 WO 2002050366A1 US 0126665 W US0126665 W US 0126665W WO 0250366 A1 WO0250366 A1 WO 0250366A1
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- surfactants
- composition
- surfactant
- silicone
- mixture
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- 0 CC(COC1C(*)O)C1O* Chemical compound CC(COC1C(*)O)C1O* 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/162—Organic compounds containing Si
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/15—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using organic agents
Definitions
- the present invention is directed to a dry cleaning composition, more specifically, to a siloxane fluid based composition, for use in dry cleaning and to a dry cleaning process using the composition.
- PERC perchloroethylene
- petroleum-based materials as the cleaning solvent.
- PERC suffers from toxicity and odor issues.
- the petroleum-based products are not as effective as PERC in cleaning garments.
- Cyclic siloxanes have been reported as spot cleaning solutions, see US 4,685,930, and as dry cleaning fluids in dry cleaning machines, see US 5,942,007.
- Other patents disclose the use of silicone soaps in petroleum solvents, see JP 09299687, and the use of silicone surfactants in super critical carbon dioxide solutions has been reported, see, for example, US 5,676,705 and Chem. Mark. Rep., 15 Dec 1997, 252(24), p. 15.
- Non-volatile silicone oils have also been used as the cleaning solvent requiring removal by a second washing with perfluoroalkane to remove the silicone oil, see JP 06327888.
- the present invention is directed to a dry cleaning composition, comprising a volatile siloxane and two or more surfactants.
- the present invention is directed to a method for dry cleaning an article, comprising contacting the article with a composition comprising a volatile siloxane and two or more surfactants.
- the present invention is directed to a concentrate composition, comprising two or more surfactants.
- composition and process of the present invention exhibit improved performance, such as for example, removal of water soluble stains from the article, for example a garment, being cleaned, improved feel and hand, and improved refinishing of the article.
- the present invention also provides for the removal of oil soluble stains such as motor oil and grease.
- the composition comprises, based on 100 parts by weight ("pbw") of the composition, from greater than 90 pbw to 99.99 pbw, more preferably from 92 pbw to 99.9 pbw and even more preferably from 95 pbw to 99.5 pbw of the volatile siloxane and from 0.001 pbw to less than 10 pbw, more preferably from 0.01 pbw to 8 pbw and even more preferably from 0.1 pbw to 5 pbw of the surfactants.
- pbw 100 parts by weight
- the composition optionally further comprises water, preferably from 0.01 pbw to 15 pbw, more preferably from 01 pbw to less than 12 pbw and even more preferably from 0.2 pbw to 10 pbw of water.
- the volatile siloxane utilized in the present invention may be a linear, branched or cyclic siloxane.
- the water may be added as "free" water or may be delivered by an emulsion containing other components such as siloxanes, hydrocarbons, surfactants, or other suitable additives. If the water is delivered by an emulsion, the emulsion may be prepared by such methods as homogenization of the components or mechanical stirring of the mixture.
- the surfactant comprises two or more organic surfactants selected from the classes of nonionic, cationic, anionic and amphoteric surfactants.
- two organic surfactants are mixed together for use in the composition.
- three organic surfactants are mixed together for use in the composition.
- four organic surfactants are mixed together for use in the composition.
- five organic surfactants are mixed together for use in the composition.
- more than five organic surfactants are mixed together for use in the composition.
- a concentrate composition comprises two or more surfactants, preferably two or more organic surfactants selected from the classes of nonionic, cationic, anionic and amphoteric surfactants.
- the composition comprises, based on 100 pbw of the composition, from 0.1 to 99.9 pbw of one surfactant and from 0.1 to 99.9 pbw of a second surfactant.
- the concentrate composition may further comprise from 0.1 to 99.8 pbw of one or more additional organic surfactants.
- the concentrate composition may optionally further comprise a siloxane fluid.
- the concentrate composition may be added to a cleaning fluid, for example a dry cleaning solvent, for use in cleaning processes.
- linear or branched, volatile siloxane ' solvent of the present invention are those containing a polysiloxane structure that includes from 2 to 20 silicon atoms.
- the linear or branched, volatile siloxanes are relatively volatile materials, having, for example, a boiling of below about 300°C point at a pressure of 760 millimeters of mercury ("mm Hg").
- the linear or branched, volatile siloxane comprises one or more compounds of the structural formula (I):
- R 1 , R 2 , R 3 and R 4 are each independently a monovalent hydrocarbon radical
- x and y are each integers, wherein 0 ⁇ x ⁇ 10 and 0 ⁇ y ⁇ 10 and 0 ⁇ z ⁇ 10.
- Suitable monovalent hydrocarbon groups include acyclic hydrocarbon radicals, monovalent alicyclic hydrocarbon radicals, monovalent and aromatic or fluoro containing hydrocarbon radicals.
- Preferred monovalent hydrocarbon radicals are monovalent alkyl radicals, monovalent aryl radicals and monovalent aralkyl radicals.
- the monovalent hydrocarbon radical is a monovalent (O-C ⁇ )alkyl radical, most preferably, methyl.
- (C ⁇ -C6)alkyl means a linear or branched alkyl group containing from 1 to 6 carbons per group, such as, for example, methyl, ethyl, propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, pentyl, hexyl, preferably methyl.
- aryl means a monovalent unsaturated hydrocarbon ring system containing one or more aromatic or fluoro containing rings per group, which may optionally be substituted on the one or more aromatic or fluoro containing rings, preferably with one or more (O- C ⁇ )alkyl groups and which, in the case of two or more rings, may be fused rings, including, for example, phenyl, 2,4,6-trimethylphenyl, 2- isopropylmethylphenyl, 1-pentalenyl, naphthyl, anthryl, preferably phenyl.
- aralkyl means an aryl derivative of an alkyl group, preferably a (C2-C 6 )alkyl group, wherein the alkyl portion of the aryl derivative may, optionally, be interrupted by an oxygen atom, such as, for example, phenylethyl, phenylpropyl, 2-(l-naphthyl)ethyl, preferably phenylpropyl, phenyoxypropyl, biphenyloxypropyl.
- the linear or branched, volatile siloxane comprises one or more of, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, tetradecamethylhexasiloxane or hexadecamethylheptasiloxane or methyltris(trimethylsiloxy)silane.
- the linear or branched, volatile siloxane of the present invention comprises octamethyltrisiloxane, decamethyltetrasiloxane, or dodecamethylpentasiloxane or methyltris(trimethylsiloxy)silane.
- the siloxane component of the composition of the present invention consists essentially of decamethyltetrasiloxane.
- Suitable linear or branched volatile siloxanes are made by known methods, such as, for example, hydrolysis and condensation of one or more of tetrachlorosilane, methyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, or by isolation of the desired fraction of an equilibrate mixture of hexamethyldisiloxane and octamethylcyclotetrasiloxane or the like and are commercially available.
- cyclic siloxane component of the present invention are those containing a polysiloxane ring structure that includes from 2 to 20 silicon atoms in the ring.
- the linear, volatile siloxanes and cyclic siloxanes are relatively volatile materials, having, for example, a boiling point of below about 300°C at a pressure of 760 millimeters of mercury ("mm Hg").
- the cyclic siloxane component comprises one or more compounds of the structural formula (II):
- R 5 , R 6 , R 7 and R 8 are each independently a monovalent hydrocarbon group, preferably a (C ⁇ -C ⁇ )alkyl, more preferably, methyl; and a and b are each integers wherein 0 ⁇ a ⁇ 10 and 0 ⁇ b ⁇ 10, provided that 3 ⁇ (a + b) ⁇ 10.
- the cyclic siloxane comprises one or more of, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetradecamethylcycloheptasiloxane.
- the cyclic siloxane of the present invention comprises octamethylcyclotetrasiloxane or decamethylcyclopentasiloxane.
- the cyclic siloxane component of the composition of the present invention consists essentially of decamethylcyclopentasiloxane.
- Suitable cyclic siloxanes are made by known methods, such as, for example, hydrolysis and condensation of dimethyldichlorosilane and are cornmercially available.
- the organic surfactants of the present invention comprise two or more surfactants selected from nonionic, cationic, anionic and amphoteric surfactants.
- the surfactants may comprise two or more surfactants selected from the same or different classes.
- Nonionic surfactants are generally known in the art and include, for example, alkanol amides (such as, for example, coco, lauric, oleic and stearic monoethanolamides, diethanolamides and monoisopropanolamides), amine oxides (such as, for example, polyoxyethylene ethanolamides and polyoxyethylene propanolamides), polyalkylene oxide block copolymers (such as, for example, poly(oxyethylene-co-oxypropylene)), ethoxylated alcohols, (such as, for example, isostearyl polyoxyethylene alcohol, lauryl, cetyl, stearyl, oleyl, tridecyl, trimethylnonyl, isodecyl, tridecyl), ethoxylated alkylphenols (such as, for example, nonylphenol
- one component of the present invention comprises one or more nonionic surfactants according to one or more of the structural formulas III and IV:
- R 9 is a monovalent hydrocarbon group of from 1 to 30 carbons that may be linear, cyclic, branched, unsaturated, aromatic or fluoro containing;
- R 10 is hydrogen or a monovalent hydrocarbon group of 1 to 30 carbons that may be linear, cyclic, branched, unsaturated, aromatic or fluoro containing; and n is from about 1 to about 100, more preferably from about 1 to about 40.
- R 9 contains from 2 to about 24 carbons, even more preferably from 8 to 24 carbons, R 10 is H and n is from about 2 to about 20.
- one component of the present invention comprises one or more nonionic surfactants that may be a sugar- based surfactant according to one or more of the structural formulas V and VI:
- each R 17 , R" R19, R20 / R ⁇ R_2 R23 / R24 an d R25 ⁇ S independently H or a monovalent hydrocarbon group of 1 to 30 carbons that may be linear, cyclic, branched, an oxygenated alkane or other chalcogen containing group. These surfactants may also be the open-chain analogs.
- R R ⁇ R24 an d R25 ⁇ S independently H or a hydroxy-terminated polyoxyethylene of 1 to 10 repeat units, a monovalent hydrocarbon group of 1 to 4 carbons or a carboxyalkyl group of from 2 to 9 carbons.
- R 17 , R 20 and R 21 are monovalent hydrocarbon radicals of 8 of 20 carbons and R 25 is -CH 2 -OR' with R' a hydrocarbon group of from 1 to 4 carbons.
- one component of the present invention comprises one or more nonionic surfactants that may be an amine- based or phosphate ester-based surfactant according to one or more of the structural formulas VII and VIII:
- each R 11 , R 12 , R 13 , R 14 , R 15 , and R 16 is independently H or a monovalent hydrocarbon group of 1 to 30 carbons that may be linear, cyclic, branched, unsaturated, aromatic, fluoro containing, an oxygenated alkane or other chalcogen containing group.
- R 11 , R 12 , R 14 and R 15 are H or monovalent hydrocarbon radicals of 1 to 4 carbons and R 13 and R 16 are monovalent hydrocarbon radicals of 6 to 24 carbons.
- R 11 , R 12 , R 14 and R 15 are monovalent hydrocarbon radicals of 6 to 24 carbons and R 13 and R 16 are H or monovalent hydrocarbon radicals of 1 to 4 carbons.
- Anionic surfactant are generally known in the art and include, for example, alkyl aryl sulfonates (such as, for example, alkylbenzenesulf onates), alkyl aryl sulfonic acids (such as, for example, sodium and ammonium salts of toluene-, xylene- and isopropylbenzenesulfonic acids), sulfonated amines and sulfonated amides (such as, for example, amidosulfonates), carboxylated alcohols and carboxylated alkylphenol ethoxylates, diphenyl sulfonates, fatty esters, isethionates, lignin-based surfactants, olefin sulfonates (such
- one component of the present invention comprises one or more anionic surfactants that may be a sulfosuccinate, sulfate, sulfonate, carboxylate, or phosphorous containing surfactant according to one or more of the structural formulas IX to XIII:
- each R 26 , R 27 , R 28 , R 29 and R 30 is independently a monovalent hydrocarbon group of 1 to 30 carbons that may be linear, cyclic, branched, unsaturated, aromatic, fluoro containing, an oxygenated alkane or other chalcogen containing radical, and X is H or an alkali metal, alkaline earth element or a chalcogen containing counterion or other suitable cation that does not unduly interfere with the functioning of the molecule as a surfactant where the subscript q is the valence or oxidation state of the cation X.
- R 26 and R 27 are each independently a linear, cyclic, or branched monovalent hydrocarbon group of 4 to 20 carbons, more preferably a linear, cyclic, or branched monovalent hydrocarbon group of 6 to 13 carbons;
- R 28 is a monovalent hydrocarbon group of 4 to 20 carbons, more preferably from 8 to 16 carbons;
- R 29 is monovalent hydrocarbon group of 8 to 26 carbons, more preferably from 10 to 20 carbons;
- R 30 is monovalent hydrocarbon group of 8 to 30 carbons.
- Compounds suitable for use as the cationic surfactant of the present invention are those having a positive charge when dissolved in aqueous media, which resides on an amino or quaternary nitrogen.
- Cationic surfactants are generally known in the art and include, for example, amine acetates, amines (such as, for example, oxygen-free amines such as monoalkylamines, dialkylamines and N-alkyltrimethylene diamines, and oxygen-containing amines such as amine oxides, ethoxylated alkylamines, 1- (2-hydroxyethyl)-2-imidazolines, and alkoxylates of ethylenediamine), and quaternary ammonium salts (such as, for example, dialkyldimethylammonium salts, alkylbenzyldimethylammonium chlorides, alkyltrimethylammonium salts and alkylpyridium halides), and quaternary ammonium esters (such as, for example
- one component of the present invention comprises one or more cationic surfactants that may be a quaternary amine- based surfactant according to the structural formula XIV
- each R 31 , R 32 , R 33 , and R 34 is independently H or a monovalent hydrocarbon group of 1 to 30 carbons that may be linear, cyclic, branched, unsaturated, aromatic, fluoro containing, an oxygenated alkane or other chalcogen containing group, and J is a suitable anion having an oxidation state or valence p that does not unduly interfere with the functioning of the molecule as a surfactant.
- R 31 and R 32 are each independently a monovalent hydrocarbon radical of 1 to 4 carbons and R 33 and R 34 are each independently a monovalent hydrocarbon radical of 8 to 24 carbons.
- amphoteric surfactant of the present invention is those containing both an acidic and basic hydrophilic group.
- Amphoteric surfactants are compatible with anionic and cationic surfactants.
- Amphoteric surfactants are generally known in the art and include, for example, betaine derivatives such as alkylbetaines and amidopropylbetaines, block copolymers, imidazolines and lecithins.
- one component of the present invention comprises one or more amphoteric surfactants according to the structural formula XV:
- each R 35 , R 36 and R 37 is independently H or a monovalent hydrocarbon group of 1 to 30 carbons that may be linear, cyclic, branched, unsaturated, aromatic, fluoro containing, an oxygenated alkane or other chalcogen containing group
- G is a divalent spacer group
- Y is a carboxylate, sulfonate, sulfate, phosphonate or other similar group.
- R 35 is a monovalent hydrocarbon group of 1 to 4 carbons, more preferably methyl
- R 36 and R 37 are each independently monovalent hydrocarbon group of 6 to 24 carbons.
- compositions of the present invention comprise two or more surfactants selected from the group consisting of anionic, nonionic, cationic and amphoteric surfactants.
- the composition of the present invention comprises two or more anionic surfactants, or two or more cationic surfactants, or two or more nonionic surfactants or two or more amphoteric surfactants, preferably two or more anionic surfactants or two or more nonionic surfactants.
- the composition of the present invention comprises a sulfosuccinate surfactant and a sulfonic acid surfactant, more preferably sulfosuccinate and dodecylbenzenesulfonic acid, or a sulfated anionic surfactant and a sulfosuccinate, or a sulfated anionic surfactant and a sulfonic acid surfactant, more preferably sulfosuccinate and dodecylbenzenesulfonic acid, or a nonionic polymeric surfactant and an ethoxylated alcohol.
- the composition of the present invention comprises at least two surfactants selected from anionic, nonionic, cationic and amphoteric surfactants, provided that at least two of the surfactants are selected from two different members of the group of surfactants, such that there is at least one anionic surfactant and at least one cationic surfactant, or at least one anionic surfactant and at least one nonionic surfactant, or at least one nonionic surfactant and at least one cationic surfactant, or at least one anionic surfactant and at least one amphoteric surfactant, or at least one amphoteric surfactant and at least one cationic surfactant or at least one nonionic surfactant and at least one amphoteric surfactant.
- the composition of the present invention comprises a sulfoccinate and a quaternary ammonium salt, or a sulfated anionic surfactant and an ethoxylated alcohol, or a sulfonic acid, more preferably dodecylbenzenesulfonic acid, and a nonionic polymeric surfactant, or a sulfosuccinate and a nonionic polymeric surfactant, or a sulfonic acid, more preferably dodecylbenzenesulfonic acid, and an ethoxylated alcohol, or a sulfonic acid, more preferably dodecylbenzenesulfonic acid, and a quaternary ammonium salt, or a sulfated anionic surfactant and a quaternary ammonium salt, or a sulfated anionic surfactant and a nonionic polymeric surfactant, or a sulfated anionic
- composition of the present invention comprises at least three surfactants selected from the group consisting of anionic, nonionic, cationic and amphoteric surfactants.
- each of the three surfactants may be chosen wherein each of the three surfactants are selected from different surfactants in terms of anionic, nonionic, cationic or amphoteric, for example is at least one anionic surfactant, at least one cationic surfactant and at least one nonionic surfactant, or at least one anionic surfactant, at least one cationic surfactant and at least one amphoteric surfactant, or at least one cationic surfactant, at least one nonionic surfactant and at least one amphoteric surfactant.
- the composition of the present invention comprises a sulfosuccinate, a sulfated anionic surfactant, two different ethoxylated alcohols, and a quaternary ammonium salt, or a sulfated anionic surfactant, an ethoxylated alcohol and a quaternary ammonium salt.
- the composition of the present invention comprises at least four surfactants selected from the group of anionic, nonionic, cationic and amphoteric surfactants, provided that at least one surfactant is selected from each member of the group of surfactants, such that there is at least one anionic surfactant, at least one cationic surfactant, at least one nonionic surfactant and at least one amphoteric surfactant.
- the dry cleaning composition of the present invention is made by adding to the siloxane fluid two or more surfactants and mixing to form a homogeneous solution.
- the surfactants may be mixed together before addition to the siloxane, or they may added to the siloxane individually.
- the dry cleaning composition of the present invention further comprises a minor amount, preferably, less than 50 pbw per 100 pbw of the composition, more preferably, less than 10 pbw per
- non-siloxane fluids 100 pbw of the composition, of one or more non-siloxane fluids.
- Suitable non- siloxane fluids include aqueous fluids, such as, for example, water, and organic fluids, for example, hydrocarbon fluids and halogenated hydrocarbon fluids.
- an article such as for example, a textile or leather article, typically, a garment, is dry cleaned by contacting the article with the composition of the present invention.
- the articles to be cleaned include textiles made from natural fibers, such as for example, cotton, wool, linen and hemp, from synthetic fibers, such as, for example, polyester fibers, polyamide fibers, polypropylene fibers and elastomeric fibers, from blends of natural and synthetic fibers, from natural or synthetic leather or natural or synthetic fur.
- the article and dry cleaning composition are then separated, by, for example, one or more of draining and centrifugation.
- separation of the article and dry cleaning composition is followed by the application of heat, preferably, heating to a temperature of from 15°C to 120°C, preferably from 20°C to 100°C, or reduced pressure, preferably, a pressure of from 1 mm Hg to 750 mm Hg, or by application of both heat and reduced pressure, to the article.
- the surfactant components of the dry cleaning composition a re typically depleted through use in the cleaning cycle. Some of the surfactants remain on the articles being cleaned.
- the dry cleaning solvent is periodically cleaned or refreshed, preferably distilled, to remove the dirt that has been removed from the articles being cleaned. Once the solvent has been cleaned, additional surfactants are typically added to the cleaned solvent to replenish the amount of surfactants in the solvent. This process is repeated periodically, depending on the number of uses and the amount of soil on articles being cleaned, so that the solvent will effectively clean and remove soil from articles, and each time, additional surfactants are added to the solvent.
- the concentrate composition of the present invention is added to the dry cleaning composition to replenish the surfactants that have been depleted.
- the concentrate composition of the present invention can be made in any of the combinations of organic disclosed above, such as, for example, a concentrate composition comprising at least one anionic surfactant and at least one cationic surfactant, or at least two anionic surfactants.
- the concentrate composition may optionally further comprise a siloxane fluid.
- the concentrate composition of the present invention comprises at least one anionic surfactant and at least one nonionic surfactant, and optionally, a siloxane fluid.
- the concentrate composition may optionally further comprise additional components known in the art, such as, for example, brighteners, softeners, water, fragrances and the like.
- the concentrate composition of the present invention is made by adding together two or more surfactants in desired amounts, and optionally, a siloxane fluid> and stirring to form a homogeneous solution.
- the concentrate may then be added to a siloxane fluid to form a dry cleaning fluid at any time, such as before the initial cleaning, or after the fluid has been used to replenish the amount of surfactant in the cleaning fluid.
- the surfactant level in the cleaning fluid is depleted through routine use and cleaning.
- Testing for water soluble stain removal was accomplished using fabric swatches supplied by the International Fabricare Institute (“IFI") (Silver Spring, MD) that contained a water soluble dye. The color change of a swatch of this material was measured by a Minolta CR-300 ® Colorimeter using the Hunter Color Number difference calculations. The larger the change in Hunter Color Number ( ⁇ E), the greater the dye removal and the more efficient the cleaning.
- IFI International Fabricare Institute
- a cleaning composition according to the present invention containing a cyclic siloxane (D5) and a mixture of two surfactants from different surfactant classes was made. Fabric swatches were cleaned using the above procedure, and the color difference was measured to determine the effectiveness of the cleaning composition. A solution of cyclic siloxane (D 5 ) without a surfactant was used as a control. Results are shown in Table 1 below.
- Table 2 shows the results of using a mixture of two different surfactants from different surfactant classes in a linear volatile siloxane. A solution of MD2M was used as a control.
- Table 2 shows good cleaning behavior in linear siloxane solvent. Several binary compositions exhibited enhanced (unexpected results) cleaning characteristics.
- a cleaning composition according to the present invention containing a cyclic siloxane (D5) and a mixture of three or more surfactants from different surfactant classes was made. Fabric swatches were cleaned using the above procedure, and the color difference was measured to determine the effectiveness of the cleaning composition. A solution of cyclic siloxane (D5) without a surfactant was used as a control. Table 3 - Mixtures of Three or More Surfactants
- Table 3 shows that good cleaning can be obtained from mixtures of three organic surfactants with water optionally present.
- Table 4 shows cleaning benefits derived from a multiple combination of organic surfactants. Concentrates of surfactants were also made as exemplified by the following 2 examples.
- Concentrate 1 4 parts surfactant B, 2 parts, surfactant E, 2 parts surfactant K and 2 parts surfactant I were added together in an appropriate container and stirred to form a homogeneous solution.
- the present invention exhibits improved performance of dry cleaning agents for stain removal, particularly water soluble stains, through the addition of a mixture of different classes of surfactants, and optionally, water.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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AU2001285299A AU2001285299A1 (en) | 2000-12-20 | 2001-08-24 | Siloxane dry cleaning composition and process |
EP01964448A EP1346100A1 (en) | 2000-12-20 | 2001-08-24 | Siloxane dry cleaning composition and process |
JP2002551234A JP2004523608A (en) | 2000-12-20 | 2001-08-24 | Siloxane dry cleaning compositions and methods |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US09/742,760 US20020004953A1 (en) | 2000-03-03 | 2000-12-20 | Siloxane dry cleaning composition and process |
US09/742,760 | 2000-12-20 |
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WO2002050366A1 true WO2002050366A1 (en) | 2002-06-27 |
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PCT/US2001/026665 WO2002050366A1 (en) | 2000-12-20 | 2001-08-24 | Siloxane dry cleaning composition and process |
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US (1) | US20020004953A1 (en) |
EP (1) | EP1346100A1 (en) |
JP (1) | JP2004523608A (en) |
AU (1) | AU2001285299A1 (en) |
WO (1) | WO2002050366A1 (en) |
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US6890892B2 (en) | 2001-12-06 | 2005-05-10 | Procter & Gamble Company | Compositions and methods for removal of incidental soils from fabric articles via soil modification |
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Also Published As
Publication number | Publication date |
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US20020004953A1 (en) | 2002-01-17 |
EP1346100A1 (en) | 2003-09-24 |
AU2001285299A1 (en) | 2002-07-01 |
JP2004523608A (en) | 2004-08-05 |
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