EP0160762B1 - Stabilisierte Öl-in-Wasser-Reinigungsmittel-Mikroemulsion - Google Patents

Stabilisierte Öl-in-Wasser-Reinigungsmittel-Mikroemulsion Download PDF

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Publication number
EP0160762B1
EP0160762B1 EP84305319A EP84305319A EP0160762B1 EP 0160762 B1 EP0160762 B1 EP 0160762B1 EP 84305319 A EP84305319 A EP 84305319A EP 84305319 A EP84305319 A EP 84305319A EP 0160762 B1 EP0160762 B1 EP 0160762B1
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EP
European Patent Office
Prior art keywords
amine
alkyl
composition according
solvent
compositions
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EP84305319A
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English (en)
French (fr)
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EP0160762A1 (de
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James Pyott Johnston
John Richard Walker
Ivan Herbots
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Procter and Gamble European Technical Center
Procter and Gamble Co
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Procter and Gamble European Technical Center
Procter and Gamble Co
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Priority to AT84305319T priority Critical patent/ATE41172T1/de
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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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/30—Amines; Substituted amines ; Quaternized amines
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/75—Amino oxides
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0017—Multi-phase liquid compositions
    • C11D17/0021—Aqueous microemulsions
    • 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
    • C11D3/43—Solvents

Definitions

  • the present invention relates to liquid carboxylic acid-containing oil-in-water microemulsions having a pH towards the alkaline range using amines, quaternary ammonium salts and amine oxides.
  • EP-A-0,137,616 (earliest priority date 11.8.83; filing date 6.8.84; published 17.4.85) relates to liquid detergents containing high levels of grease-removal solvents, which compositions are formulaed at a pH in the range near neutrality to alkaline.
  • Terpineols e.g. from pine oil
  • pine oil terpineol such as alpha terpineol and fatty acid soap or free acid neutralized in situ to alkaline pH.
  • Citrus juices which contain relatively low amounts of terpenes, have been suggested for use in hand soaps and dishwashing liquids.
  • the present invention provides fully-formulated heavy duty liquid detergent compositions comprising as much as 20%, and higher, by weight of essentially water-insoluble solvent, in the form of homogeneous, fatty acid-built liquids that are quite suitable for use in both the fabric pre-treatment and through-the-wash laundry modes, as hard-surface cleaners, and the like.
  • compositions to be formulated as stable microemulsions at pH's of at least 6.65.
  • the present invention encompasses means for adjusting the pH of an oil-in-water microemulsion comprising a mixture of water (10% to 70%), grease-removal solvent or solvent mixture (5% to 20%), fatty acid or fatty acid/soap mixture (5% to 35%) and detersive surfactant (1 % to 40%), together with optional detersive ingredients (generally 0.1% to 15%), by admixing therewith a nitrogen-functional material such as an amine, a quaternary ammonium salt, or an amine oxide, said material containing an alkyl- or aryl group having at least 4 carbon atoms, whereby the "as is" pH of said microemulsion is adjusted from its original pH of around 6.5 towards a neutral or alkaline pH, whereby the cleaning performance, especially enzyme cleaning action, of said microemulsion is improved.
  • a nitrogen-functional material such as an amine, a quaternary ammonium salt, or an amine oxide
  • the invention also encompasses compositions prepared in the foregoing manner, as well as methods of cleaning fabrics and hard surfaces using said compositions.
  • solvents employed herein can be any of the well-known "degreasing" solvents commonly known for use, in, for example, the commercial laundry and dry-cleaning industry, in the hard-surface cleaner industry and the metalworking industry.
  • solvents comprise 2 hydrocarbon or halogenated hydrocarbon moieities of the alkyl or cyclo-alkyl type, and have a boiling point well above room temperature.
  • compositions of the present type will be guided in the selection of solvent partly by the need to provide good grease-cutting properties, and partly by aesthetic considerations.
  • kerosene hydrocarbons function quite well in the present compositions, but can be malodorous. Kerosene can be used in commercial laundries.
  • solvents include, for example, the terpenes and terpenoid solvents obtainable from citrus fruits, especially orange terpenes and d-limonene.
  • Benzyl alcohol is another relatively pleasant smelling solvent for use herein. Mixtures of orange terpene and benzyl alcohol are especially suitable for removing certain types of stains, e.g. marker ink, shoe polish, and dirty motor oil.
  • one preferred class of solvents used herein are the liquid paraffins, especially the "iso" C 10 paraffins and the mono- and bicyclic mono-terpenes, i.e., those of the hydrocarbon class, which include, for example, the terpinenes, limonenes and pinenes, and mixtures thereof.
  • Highly preferred materials of this latter type are d-limonene and the mixture of terpene hydrocarbons obtained from the essence of oranges (e.g. cold-pressed orange terpenes and orange terpene oil phase ex fruit juice).
  • terpenes such as dipentene, alpha-pinene, beta-pinene and the mixture of terpene hydrocarbons expressed from lemons and grape-fruit. Also useful are C s -C, 2 alcohols.
  • Another preferred class of solvents are the C s -C 9 alkyl aromatic hydrocarbons, especially the C e -C 9 alkyl benzenes, in particular, octyl benzene.
  • Short-chain alkyl benzenes e.g. toluene
  • longer-chain alkyl benzenes have undesirable soil redeposition problems, especially when used to launder fabrics.
  • Still another preferred class of solvents are the olefins having a boiling point of at least about 100°C.
  • the alpha-olefins have now been found to possess excellent cleaning properties and low, rather pleasant odors.
  • the compounds 1-decene and 1-dodecene are especially preferred olefin solvents for laundry detergent use.
  • the relatively non-polar solvents such as paraffin, olefin, terpene or alkyl benzene solvents mentioned above, are used in combination with a more polar solvent such as, for example, benzyl alcohol, n-hexanol, phthalic acid esters such as dimethyl-, diethyl- (preferred), dipropyl- or dibutyl-phthalate, or the "Carbitol” solvents such as Butyl Carbitol (trade mark for 2 - (2 - butoxyethoxy)-ethanol) to provide broad-spectrum cleaning of a variety of polar and non-polar soils.
  • a more polar solvent such as, for example, benzyl alcohol, n-hexanol, phthalic acid esters such as dimethyl-, diethyl- (preferred), dipropyl- or dibutyl-phthalate, or the "Carbitol” solvents such as Butyl Carbitol (trade mark for 2 - (2 -
  • Such mixtures will have a ratio of non-polar:polar solvent in the range of 10:1 to 1:10, preferably 5:1 to 1:5, and most preferably have a bit more non-polar than polar solvent, generally a ratio of 5:1 to 5:4, especially for fabric laundering.
  • the solvents herein can be used in combination with relatively high (15%-25%, and higher depending on solvent) levels of fatty acid/soap, which provide an important detergency builder function.
  • compositions of this invention will typically contain organic surface-active agents ("surfactants") to provide the usual cleaning benefits associated with the use of such materials.
  • surfactants organic surface-active agents
  • Detersive surfactants useful herein include well-known synthetic anionic, nonionic, amphoteric and zwitterionic surfactants. Typical of these are the alkyl benzene sulfonates, alkyl- and alkylether sulfates, paraffin sulfonates, olefin sulfonates, alkoxylated (especially ethoxylated) alcohols and alkyl phenols, amine oxides, a-sulfonates of fatty acids and of fatty acid esters, and the like, which are well-known from the detergency art.
  • such detersive surfactants contain an alkyl group in the C 9 -C 18 range; the anionic detersive surfactants can be used in the form of their sodium, potassium or triethanolammonium salts but it is to be understood that the presence of magnesium cations in the compositions usually means that at least some portion of the anionic surfactant will be in the magnesium salt form; the nonionics generally contain from about 5 to about 17 ethylene oxide groups.
  • U.S. Patents 4111 855 and 3 995 669 contain detailed listings of such typical detersive surfactants.
  • C 11 ⁇ C 16 alkyl benzene sulfonates, C 12 ⁇ C 18 paraffin-sulfonates and alkyl sulfates, and the ethoxylated alcohols and alkyl phenols are especially preferred in the compositions of the present type.
  • compositions will contain 1% to 40%, preferably 10% to 40%, of surfactant.
  • surfactant ethoxylated nonionics with anionics such as the alkyl benzene sulfonates, alkyl sulfates and paraffin sulfonates are preferred for through-the-wash cleansing of a broad spectrum of soils and stains from fabrics.
  • Such surfactants and mixes typically have HLB's of 20 and above.
  • Polyamines-Polyamine materials are optional ingredients in the present compositions by virtue of their ability to co-act with the solvent to remove the solid material that is present in many greasy stains (e.g., carbon black in motor oil stain; clay and color bodies in cosmetic stain).
  • greasy stains e.g., carbon black in motor oil stain; clay and color bodies in cosmetic stain.
  • polyamines as used herein represents generically the alkoxylated polyamines, both in their amine form and in their quaternarized form.
  • Such materials can conveniently be represented as molecules of the empirical structures with repeating units: Amine form and Quaternarized form wherein R is a hydrocarbyl group, usually of 2-6 carbon atoms; R' may be a C,-c 2o hydrocarbon; the alkoxy groups are polyethoxy, polypropoxy, and the like, with polyethoxy having a degree of polymerization of 2-30, most preferably 10 to 20; x is an integer of at least 2, preferably from 2-20, most preferably 3-5; and X I is an anion such as halide or methylsulfate, resulting from the quaternization reaction.
  • the anion X I is of no particular consequence to performance of the polyamine in the present context, and is mentioned only for completeness in the above formula.
  • polyamines for use herein are the so-called ethoxylated polyethylene imines, i.e., the polymerized reaction product of ethylene oxide with ethyleneimine, having the general formula: wherein x is an integer of 3 to 5 and y is an integer of 10 to 20.
  • Polyamines typically will comprise at least about 0.2% of the preferred compositions herein, generally 0.5%-5%.
  • compositions herein can contain other ingredients which aid in their cleaning performance.
  • through-the-wash detergent compositions contain a detergent builder and/or metal ion sequestrant.
  • detergent builders include the nitrilotriacetates, polycarboxylates, citrates, water-soluble phosphates, such as tri-polyphosphate and sodium ortho- and pyro-phosphates, silicates, and mixtures thereof.
  • Metal ion sequestrants include all of the above, plus materials like ethylenediaminetetraacetate, the amino- polyphosphonates and phosphates (DEQUEST) and a wide variety of other poly-functional organic acids and salts too numerous to mention in detail here. See U.S. Patent 3.579.454 for typical examples of the use of such materials in various cleaning compositions.
  • the builder/sequestrant will comprise about 0.5% to 15% of the composition.
  • Citrate is one of the most preferred builders since it is readily soluble in the aqueous phase of heavy-duty liquid detergent compositions. Such ingredients are also useful in hard-surface cleaners.
  • a source of magnesium ions can be used in the compositions, to assist grease removal.
  • magnesium hydroxide water-soluble salts such as magnesium chloride, acetate, sulfate, and the like, can be used.
  • the laundry compositions herein also preferably contain enzymes to enhance their through-the-wash cleaning performance on a variety of soils and stains.
  • Amylase and protease enzymes suitable for use in detergents are well-known in the art and in commercially available liquid and granular detergents.
  • Commercial detersive enzymes preferably a mixture of amylase and protease typically function best at pH above about 7 and are typically used at levels of 0.001 % to 2%, and higher, in the present compositions.
  • Ingredients such as propane diol and/or formate and calcium can be added to help stabilize the enzymes in well-known fashion, according to the desires of the formulator.
  • compositions herein can contain, in addition to ingredients already mentioned, various other optional ingredients typically used in commercial products to provide aesthetic or additional product performance benefits.
  • Typical ingredients include perfumes, dyes, optical brighteners, soil suspending agents, hydrotropes and gel-control agents, freeze-thaw stabilizers, bactericides, preservatives, suds control agents and the like.
  • Such ingredients typically comprise 0.1%-10% of the formulations.
  • Water or water-alcohol (e.g., ethanol, ispropanol, etc.) mixtures are used as the carrier vehicle, and alkylated polysaccharides can be used to increase the stability and performance characteristics of the compositions.
  • heavy duty liquid detergents that are suitable for laundering all manner of fabrics in a typical home laundering operation.
  • the heavy duty liquid detergents disclosed hereinafter are formulated with a variety of detersive ingredients to provide excellent cleaning of a wide variety soils and stains, with particularly noteworthy benefits with regard to cosmetic and dirty motor oil stains.
  • the following formulations are in the form of oil-in-water emulsions (wherein the solvent is considered the "oil" phase) and are substantially clear, homogeneous, stable microemulsions.
  • the oil-in-water microemulsions herein are comparable in grease-cutting performance to water-in-oil emulsions, which have much higher concentrations of solvent.
  • the compositions also exhibit excellent whiteness maintenance on cotton fabrics, apparently because the solvent reduces fatty acid soap build-up on fabric surfaces and the pH of the composition enhances enzyme cleaning performance.
  • Fatty acids and soaps-Fatty acids such as lauric, myristic, palmitic, stearic and oleic acids, and poly-unsaturated fatty acids, as well as mixtures thereof with their water-soluble salts (i.e., "soaps") are employed in the present compositions to provide clear, homogeneous formulations containing the solvent and water.
  • Fatty acids (or mixtures thereof with soaps) such as palm oil acids, coconut oil acids, and the like, in the C 12 -C 18 carbon chain length, can be used.
  • the concentration of fatty acid (or of a mixture thereof with soap) is from 5% to 35%, most preferably 10% to 30%, and the weight ratio of fatty acid (or of a mixture thereof with soap):solvent is generally in the range of 4:1 to 1:4, preferably 3:1 to 1:2.
  • the potassium salt and sodium forms are preferred, but any convenient water-soluble salt may be used.
  • these fatty acid/soap materials provide an important detergency builder function in the present compositions.
  • fatty acid/soap materials provide an important detergency builder function in the present compositions.
  • pH greater than about 6.5 the presence of fatty acid/soap can actually destabilize the system.
  • Means for overcoming this de-stabilization while maintaining a pH of at least 6.65 in microemulsions containing builder levels of fatty acid/soap are disclosed in detail, hereinafter.
  • Water-based liquid compositions herein may properly be characterized as "water-based", in contrast with organic solvent-based cleaners known in the art.
  • water can interfere with the ability of solvents to remove greasy stains from fabrics.
  • a fabric stained with motor oil and dampened with water prior to treatment with a terpene solvent is not very well de-greased, if at all.
  • the present compositions wherein the solvents are microemulsified in water are excellent greasy stain removers when used directly on dry or damp fabrics.
  • water-based heavy duty liquid detergents offer ease-of-formulation advantages with respect to ingredients such as most detergency builders, sanitizers, chelants, soil-suspending agents, pH-control agents, and the like, which are usually water-soluble.
  • compositions herein exhibit the advantages of water-based formulation flexibility, together with the superior grease removal qualities of solvent-based compositions.
  • compositions comprise from 10% to 70%, preferably 20% to 50% water.
  • the weight ratio of water:solvent is generally 10:1 to 1:1, preferably 5:1 to 2:1.
  • pH/Stabilizer-As is well known in the detergency arts, it is preferred for detergent compositions to be used in the near-neutral to alkaline pH range, i.e., pH 6.5, and above. This is for a variety of reasons. For example, many soils are partly peptized or emulsified by alkalinity, itself. And, many commercially available detersive enzymes (e.g., the "alkaline proteases”) function optimally in alkaline laundering liquors.
  • formulation stability could theoretically be achieved by proper selection of surfactants (discussed hereinafter) with low HLB's.
  • nonionic surfactants such as C 14 - 11 alcohols with low ethoxylate numbers (1-3) could be used.
  • low HLB surfactants do not function well as detersive surfactants, and the object herein is not only to provide stable microemulsions, but also good pre-treat and through-the-wash detergency.
  • Nitrogen-functional stabilizers/pH regulants-It has now been discovered that various alkyl and cyclo-alkyl amines, quaternary ammonium compounds and amine oxides, said ingredients containing an alkyl- or aryl group having at least 4 carbon atoms, constitute a class of pH regulants and stabilizers in the oil-in-water microemulsion detergent compositions of the present type. Apparently, such materials may somehow associate with the fatty acid or anionic surfactants to form a complex which stabilizes the microemulsified oil (solvent). While the nitrogen functional compounds do not boost the pH very much towards the alkaline range (only several tenths of a pH unit, measured on the product formulated "as is”) the resulting boost in detergency performance is substantial.
  • Dioctyl dimethyl ammonium chloride is a highly preferred quaternary used herein as a pH-regulant, but there can also be mentioned the following quaternaries in increasing order of preference of use: coconut trimethyl ammonium chloride (6.66); di-coconut dimethyl ammonium chloride (6.84); coconut benzyl dimethyl ammonium chloride (6.84); and dihexyl dimethyl ammonium chloride (6.89).
  • the numbers in parentheses denote the pH achievable by adding the respective quaternaries to a liquid oil-in-water microemulsion containing fatty acid and formulated at an "as is" pH of 6.5.
  • the pH figure is 6.94.
  • Suitable alkyl and cyclo-alkyl amines useful herein include: coconut alkyl diethanol amine (6.65); coconut alkyl dimethyl amine (6.75); trioctyl amine (7.0) dibutylamine; diisobutyl amine; and cyclohexyl amine (7.5).
  • Suitable amine oxides herein include coconut alkyl dimethylamine oxide (6.7) and dioctyl methylamine oxide (est. >7).
  • compositions herein are in liquid form, which can be prepared by simply blending the essential and optional ingredients in the aqueous carrier.
  • Microemulsion stability can be estimated visually by watching for phase separation, or can be monitored more quantitatively by standard turbidometric techniques.
  • the compositions can be used to pre-treat soiled fabrics by rubbing a few milliliters of the composition directly onto and into the soiled area, followed by laundering, in standard fashion.
  • the compositions are typically used at a concentration of at least 500 ppm, preferably 0.1 % to 1.5% in an aqueous laundry bath at pH 6.5 and above to launder fabrics.
  • the laundering can be carried out over the range from 5°C to the boil, with excellent results.
  • compositions are usually diluted with water.
  • compositions of Example I is a stable, oil-in-water microemulsion suitable for use as a laundry detergent.
  • Example I The composition of Example I is modified by replacing the n-octyl benzene by the same amount (9.1 % total formulation) of 1-decene.
  • Example I The composition of Example I is modified by replacing the n-octyl benzene by any of the following solvent mixtures (percentages of total formulation being specified in parentheses): 1-Decene (6.1%); Diethylphthalate (3.0%); 1-Dodecene (7.3%)/Benzyl alcohol (1.8%); n-octyl benzene (6.2%)/ Diethylphthalate (2.9%); octyl benzene (6.0%)/Butyl Carbitol (3.1%).
  • Example III comprising solvent mixtures are adjusted to pH 7.0 with trioctyl amine and to pH 7.1 with dioctyl methylamine oxide, respectively, and stable, microemulsions are secured.
  • the present invention provides effective means whereby microemulsions comprising fatty acid/soap at high levels can be adjusted to a preferred pH range of 6.65 to 7.3 using mono- and di-C 6- C l8 tri- and dimethyl ammonium salts; or C 4 ⁇ C 8 alkyl or cycloalkyl amines; or mono- and di-C 6 ⁇ C 18 alkyl dimethyl and monomethyl amine oxides.
  • composition herein are as follows.
  • Example I The composition of Example I is modified by replacing the Ethoxylated Polyamine with any of the following alkoxylated polyamines A, B or C, having the general formula disclosed hereinbefore.
  • the alkoxylated polyamines contribute to the clay soil removal performance of the compositions.
  • the pH of the compositions of Example V are adjusted to 7.3 with addition of 5 parts (by weight of composition) of cyclohexyl amine.
  • Example II The composition of Example II is modified by replacing the 1-Decene by a mix of 6% diethylphthalate/ 2% liquid iso-paraffin/2% orange terpene.
  • the product is stable at pH 6.94 when dioctyl dimethyl ammonium chloride is present at a level of about 2.5%.
  • P-4" polymer Another preferred olefin solvent herein by virtue of its relatively low odor is the so-called "P-4" polymer, available from a number of petrochemical suppliers to the detergent industry as a raw material for branched alkyl benzene.
  • P-4 is an isomer mix of the condensation product of 4 moles of propylene, i.e., C 12 branched olefins
  • P-4 is non-polar, and is preferably used in combination with a polar solvent such as benzyl alcohol, diethylphthalate, Butyl Carbitol or the like.
  • polar solvents include the "Cellosolves” e.g. alkoxyl alkanols such as 2-butoxyethanol; C 6 ⁇ C 12 alkanols (including benzyl alcohol) such as dodecanol, phenethyl alcohol, diglycolether acetates, and the like.
  • compositions herein are used in an aqueous laundering liquor, preferably at a liquor pH of 6. 5 - 8.0 (measured as 1 % of composition in water) to launder fabrics. Excellent cleaning is attained by agitating fabrics in such liquors especially at this preferred in-use pH range.
  • a highly preferred liquid laundry detergent by virtue of the low odor properties of its grease removal solvent system, its stability in microemulsion form, and its enzymatic cleaning activity (by virtue of its pH) is as follows.
  • Example IX is used in an aqueous laundry bath at a concentration of 100/ml/10 liters and provides an in-use pH of about 7.2 (varies with water hardness).
  • the primary amines are preferred pH-adjusting agents herein.
  • the C 4 ⁇ C 18 alkyl amines are used, since the lower molecular weight amines tend to be excessively malodorous.
  • Other examples of amines useful herein include dibutyl- and di-isobutyl amine.
  • amines having a boiling point above 100°C are preferred.
  • Product "as is” pH is measured at ambient (23°C) temperature using a commercial pH meter. The electrode is immersed in the product and the meter is allowed to stabilize before reading.

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Claims (13)

1. Eine Reinigungsmittelzusammensetzung in der Form einer flüssigen Öl - in - Wasser - Microemulsion, in der das genannte Öl ein nicht-polares oder polares "Fettentfernungs" - lösungsmittel oder mehrere, nicht-polare oder polare "Fettentfernungs" - lösungsmittel darstellt, wobei die genannte Zusammensetzung 10% bis 70% Wasser; 5% bis 20% Fettentfernungslösungsmittel oder Lösungsmittelgemisch; 5% bis 35% Fettsäure oder Fettsäure/Seifen - Gemisch; und 1% bis 40% detersives grenzflächenaktives Mittel enthält, und wobei die genannte Zusammensetzung dadurch gekennzeichnet ist, daß sie eine ausreichende Menge eines Bestandteiles, ausgewählt aus einem eine Alkylgruppe mit wenigstens 4 Kohlenstoffatomen enthaltenden Amin und einem eine Alkylgruppe mit wenigstens 6 Kohlenstoffatomen enthaltenden, quaternären Ammoniumsalz oder Aminoxid, enthält, um einen pH-Wert der genannten (unverdünnten) Zusammensetzung von wenigstens 6,65 einzustellen.
2. Eine Zusammensetzung nach Anspruch 1, wobei das Amin aus Alkyl- oder Cycloalkylaminen ausgewählt ist, und der pH-Wert im Bereich von 6,65 bis 7,5 liegt.
3. Eine Zusammensetzung nach Anspruch 2, wobei das Amin aus Kokosnußdiethanolamin; Kokosnußalkyldimethylamin; Trioctylamin; Dibutylamin; Diisobutylamin und Cyclohexylamin ausgewählt ist.
4. Eine Zusammensetzung nach Anspruch 1, wobei das quaternäre Ammoniumsalz aus Mono- und Di-C8―C18-tri- und -dimethylammoniumsalzen ausgewählt ist.
5. Eine Zusammensetzung nach Anspruch 1, wobei das quaternäre Ammoniumsalz aus Kokosnußalkyltrimethylammoniumchlorid, Dikokosnußalkyldimethylammoniumchlorid, Dihexyldimethylammoniumchlorid und Dioctyldimethylammoniumchlorid ausgewählt ist.
6. Eine Zusammensetzung nach Anspruch 1, wobei das Aminoxid aus den Mono- und Di-C6―C18- alkyldimethyl- und -monomethylaminoxiden ausgewählt ist.
7. Eine Zusammensetzung nach Anspruch 6, wobei das Aminoxid aus Kokosnußalkyldimethylaminoxid und Dioctylmethylaminoxid ausgewählt ist.
8. Eine Zusammensetzung nach einem der Ansprüche 1 bis 7, wobei das detersive grenzflächenaktive Mittel aus Alkylbenzolsulfonaten, Paraffinsulfonaten, Alkylsulfaten, ethoxylierten Alkoholen oder Alkylphenolen, oder Mischungen davon, ausgewählt ist.
9. Eine Zusammensetzung nach einem der Ansprüche 1 bis 8, wobei das Lösungsmittel aus: C6-C9-Alkylbenzolen; flüssigen Olefinen mit einem Siedepunkt von wenigstens 100°C; Terpenkohlenwasserstoffen, C6―C18-Alkoholen, Paraffinen, und Gemischen davon, ausgewählt ist.
10. Eine Zusammensetzung nach einem der Ansprüche 1 bis 9, wobei das Lösungsmittel aus einem Gemisch aus:
a) n-Octylbenzol, 1-Decen, 1-Dodecen, flüssigem C10-lsoparaffin oder Terpen; und
b) Benzylalkohol, Diethylphthalat, Dibutylphthalat oder 2 - (2 - Butoxyethoxy)ethanol; bei einem Gewichtsverhältnis von (a) zu (b) von 10:1 bis 1:10, ausgewählt ist.
11. Eine Zusammensetzung nach Anspruch 10, welche 0,5% bis 5% Cyclohexylamin enthält.
12. Eine Zusammensetzung nach einem der Ansprüche 1 bis 11, welche auch ein detersives Enzym enthält.
13. Ein Verfahren zum Waschen von Textilien, bei dem Textilien in einer wässerigen Flotte bewegt werden, welche eine Zusammensetzung nach einem der Ansprüche 1 bis 12 bei einem Flotten-pH-Wert von 6,5―8,0 enthält.
EP84305319A 1984-04-07 1984-08-06 Stabilisierte Öl-in-Wasser-Reinigungsmittel-Mikroemulsion Expired EP0160762B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84305319T ATE41172T1 (de) 1984-04-07 1984-08-06 Stabilisierte oel-in-wasser-reinigungsmittelmikroemulsion.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848409054A GB8409054D0 (en) 1984-04-07 1984-04-07 Stabilized oil-in-water cleaning microemulsions
GB8409054 1984-04-07

Publications (2)

Publication Number Publication Date
EP0160762A1 EP0160762A1 (de) 1985-11-13
EP0160762B1 true EP0160762B1 (de) 1989-03-08

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EP84305319A Expired EP0160762B1 (de) 1984-04-07 1984-08-06 Stabilisierte Öl-in-Wasser-Reinigungsmittel-Mikroemulsion

Country Status (11)

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EP (1) EP0160762B1 (de)
JP (1) JPH0633425B2 (de)
AT (1) ATE41172T1 (de)
CA (1) CA1230534A (de)
DE (1) DE3477019D1 (de)
EG (1) EG16585A (de)
ES (1) ES8605572A1 (de)
FI (1) FI73732C (de)
GB (1) GB8409054D0 (de)
GR (1) GR80087B (de)
IE (1) IE57629B1 (de)

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IT1240734B (it) * 1990-04-02 1993-12-17 Syremont Spa Procedimento per la pulitura di matrici porose idrofile
US5405548A (en) * 1991-01-30 1995-04-11 Elf Atochem North America Inc. Methylbenzyl formate paint strippers
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US5726140A (en) * 1992-06-02 1998-03-10 Elf Atochem North America, Inc. Water-in-oil emulsion having aqueous phase evaporation retarded with wax
US5749977A (en) * 1992-10-28 1998-05-12 Elf Atochem S.A. Process and composition for degreasing the surface of an object
FR2697265B1 (fr) * 1992-10-28 1994-12-09 Atochem Elf Sa Utilisation d'un ester étheroxyde d'alcoylèneglycol pour le dégraissage de la surface d'un objet et procédé et composition à cet usage.
DE69430628T2 (de) * 1993-04-02 2002-10-10 Dow Chemical Co Mikroemulsion- und emulsion-reinigungszusammensetzungen
US5883066A (en) * 1993-06-28 1999-03-16 The Procter & Gamble Company Liquid detergent compositions containing cellulase and amine
US5763386A (en) * 1993-08-04 1998-06-09 Colgate Palmolive Company Microemulsion all purpose liquid cleaning compositions comprising ethoxylated polyhydric alcohols with at least partial esters thereof, and optional dralkyl sulfosuccinate
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EP0773284A1 (de) 1995-11-10 1997-05-14 The Procter & Gamble Company Mikroemulsion mit hohem Gehalt an anionischen Tensiden unter Verwendung verzweigter Fettsäuren
DE19615271A1 (de) * 1996-04-18 1997-10-23 Huels Chemische Werke Ag Tensidhaltige Reinigungsmittel in Form einer Mikroemulsion
US5834417A (en) * 1996-06-13 1998-11-10 Colgate Palmolive Co. Light duty liquid cleaning compositions
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Also Published As

Publication number Publication date
JPH0633425B2 (ja) 1994-05-02
FI843160A0 (fi) 1984-08-10
ES535069A0 (es) 1986-03-16
FI73732C (fi) 1987-11-09
ATE41172T1 (de) 1989-03-15
DE3477019D1 (en) 1989-04-13
GB8409054D0 (en) 1984-05-16
GR80087B (en) 1984-10-30
ES8605572A1 (es) 1986-03-16
FI73732B (fi) 1987-07-31
FI843160A (fi) 1985-10-08
EP0160762A1 (de) 1985-11-13
IE842067L (en) 1985-10-07
IE57629B1 (en) 1993-02-10
JPS60212499A (ja) 1985-10-24
CA1230534A (en) 1987-12-22
EG16585A (en) 1994-10-30

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