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EP0164467B1 - Composition de nettoyage avec un solvant - Google Patents

Composition de nettoyage avec un solvant Download PDF

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Publication number
EP0164467B1
EP0164467B1 EP84305318A EP84305318A EP0164467B1 EP 0164467 B1 EP0164467 B1 EP 0164467B1 EP 84305318 A EP84305318 A EP 84305318A EP 84305318 A EP84305318 A EP 84305318A EP 0164467 B1 EP0164467 B1 EP 0164467B1
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EP
European Patent Office
Prior art keywords
solvent
compositions
solvents
water
solvent mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84305318A
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German (de)
English (en)
Other versions
EP0164467A1 (fr
Inventor
Jean Wevers
John Richard Walker
Jean-Pol Boutique
James Pyott Johnston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble European Technical Center
Procter and Gamble Co
Original Assignee
Procter and Gamble European Technical Center
Procter and Gamble Co
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Filing date
Publication date
Application filed by Procter and Gamble European Technical Center, Procter and Gamble Co filed Critical Procter and Gamble European Technical Center
Priority to AT84305318T priority Critical patent/ATE35426T1/de
Publication of EP0164467A1 publication Critical patent/EP0164467A1/fr
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Publication of EP0164467B1 publication Critical patent/EP0164467B1/fr
Expired legal-status Critical Current

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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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • C11D7/262—Alcohols; Phenols fatty or with at least 8 carbon atoms in the alkyl or alkenyl chain
    • 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
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5022—Organic solvents containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/024—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/24—Hydrocarbons
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/263—Ethers
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/266—Esters or carbonates

Definitions

  • the present invention relates to the use of certain admixtures of alkyl-aromatic solvents and polar co-solvents to improve the cleaning performance of laundry detergents or hard-surface cleaners.
  • the solvents herein are particularly suitable for use in laundry detergents. Besides their excellent cleaning properties, the solvents of this invention have the important advantage that they have a low, pleasant odor, which allows greater latitude in perfuming formulations containing such solvents.
  • EP-A-0 080 749 relates to aqueous liquid detergent compositions containing terpenes and 2-(2-butoxyethoxy)ethanol.
  • EP-A-0 126 545 published 28.11.84, pertains to liquid hard-surface cleaners containing terpenes and benzyl alcohol.
  • EP-A-0 137 615 published 17.04.85, describes stain removal compositions containing a solvent such as terpenes and benzyl alcohol in combination with an alkoxylated polyamine.
  • EP-A-0 137 616 published 17.04.85, discloses liquid detergents formulated as an oil-in-water emulsion containing a solvent such as octyl benzene and a fatty acid (soap).
  • a solvent such as octyl benzene and a fatty acid (soap).
  • EP-A-0 079 746 recites liquid textile treatment compositions containing a water-miscible organic solvent.
  • Citrus juices which contain relatively low amounts of terpenes, have been suggested for use in hand soaps and dishwashing liquids (U.S. Patent 3 650 968, 1972; and GB-Patent 2.010.892).
  • 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.
  • the present invention encompasses the detergency use of certain admixtures of alkyl-aromatic solvents with polar co-solvents.
  • the solvents herein are particularly useful in laundry detergents, both in a fabric pre-treatment mode and through-the-wash, and provide excellent removal of greasy soils and stains, as well as excellent fabric whiteness maintenance.
  • Liquid laundry detergents in the form of microemulsions are a preferred embodiment of this invention.
  • the invention encompasses solvent mixtures that have particularly good cleaning properties, and which are especially suitable for use in detergent compositions.
  • solvent mixtures are characterized in that they comprise a mixture of C 6 -C 9 alkyl-aromatic hydrocarbon solvent, together with a polar co-solvent, selected from phthalic acid esters, C 6 -C 12 alcohols, alkoxyl alkanol solvents and 2-(2-alkoxyethoxy)ethanol solvents.
  • Detergent compositions comprise preferably 1 % to 30% (preferably 3% to 20%, most preferably 5% to 15%) of the primary cleaning solvent/co-solvent mixture, and highly preferred compositions comprise n-octyl benzene as the primary cleaning solvent.
  • such compositions also contain a co-solvent selected from diethyl phthalate, benzyl alcohol, or Butyl Carbitol.
  • PCS This term is abbreviated hereinafter as PCS.
  • the PCS materials used herein are represented by C 6- C 9 alkyl-aromatic hydrocarbons.
  • alkyl-aromatic hydrocarbons having relatively short-chain alkyl groups are known for use in degreasing solvent mixtures, and such short-chain solvents are not contemplated for use herein.
  • short-alkyl benzenes e.g., toluene
  • long-chain alkyl benzenes alkyl C lo , and above
  • the C 6 -C 9 alkyl benzenes (especially octyl benzene) provide excellent performance, no problems with soil redeposition in laundry baths, and have a low, pleasant odor pronounced of almond extract. Accordingly, such materials are preferred for use as PCS materials in the practice of this invention.
  • co-solvents comprise the C 6 ⁇ C 12 alcohols, the "carbitols” (i.e., ethoxyethanols), and the diesters of phthalic acid.
  • Preferred co-solvents herein are benzyl alcohol, "Butyl Carbitol”@ (i.e., 2-(2-Butoxyethoxy)ethanol); and dimethyl-, diethyl-, dipropyl-, or dibutyl-phthalate, especially diethylphthalate. Dioctyl- and diisononyl- phthalates may also be used.
  • the PCS/co-solvent mixtures herein comprise a ratio PCS: co-solvent of 10:1 to 1:10, preferably 5:1 to 1:5. In liquid laundry detergents, there is preferably more PCS than co-solvent, usually in a ratio of 5:1 to 5:4.
  • the PCS materials, or mixtures of PCS/Co-solvents can be added to aqueous laundry liquors, hard-surface cleaning baths, daubed directly onto spots or stains, or otherwise used "neat", to achieve excellent stain and spot removal benefits.
  • the solvents herein are used as fully-formulated compositions comprising typical detersive ingredients such as detersive surfactants, detergency builders, bleaches, bleach activators, enzymes and suds regulants, all well-known to the detergent art.
  • 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 asspciated 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, 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 5 to 17 ethylene oxide groups.
  • U.S. Patents 4 111 855 and 3 995 669 contain detailed listing of such typical detersive surfactants.
  • C11-C16 alkyl benzene sulfonates, C12-C18 paraffin-sulfonates and alkyl sulfates, and the ethoxylated alcohols and alkyl phenols are especially preferred in the compositions of the present type.
  • the surfactant component can comprise as little as 1% of the compositions herein, but preferably the compositions will contain 1% to 40%, preferably 10% to 40%, of surfactant. Mixtures of the 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.
  • the solvents of this invention are preferably used in liquid compositions. However, they may be formulated as granules by the expedient of spraying them onto inert solid carriers such as attapulgite or sodium sulfate. Alternatively, the solvents can be sprayed onto spray-dried detergent granules which comprise 5%-60% conventional, solid, cleaning ingredients such as sodium perborate, sodium ortho- or pyro-phosphate, sodium tripolyphosphate, zeolite (especially 1-10 ⁇ m hydrated Zeolite A) or smectite clay fabric softeners. In still another mode, the solvents can be microencapsulated in rupturable or water-soluble capsules and admixed with granular detergents.
  • Polyamine materials are optional ingredients in these detergent 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).
  • polyamines as used herein represents generically the alkoxylated polyamines, both in their amine form and in their quaternary form.
  • Such materials can conveniently be represented as molecules of the empirical structures with repeating units: Amine form and Quaternary form wherein R is a hydrocarbyl group, usually of 2-6 carbon atoms; R' may be a C 1 -C 20 hydrocarbon; the alkoxy groups are polyethoxy or polypropoxy, 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° is an anion such as halide or methylsulfate, resulting from the quaternization reaction.
  • the anion X 9 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 ethylene-imine, 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 0.2% of these compositions, generally 0.5%-5%.
  • detergent compositions 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, polyacarboxylates, 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. In general, the builder/sequestrant will comprise 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 or sulfate 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
  • 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 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 pH regulants, perfumes, dyes, optical brighteners, soil suspending agents, hydrotropes and gel-control agents, freeze-thaw stabilizers, bactericides, preservatives or suds control agents.
  • Such ingredients typically comprise 0.1 %-10% of the formulations.
  • Water or water-alcohol (e.g., ethanol, isopropanol, 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. These performance advantages are particularly noticeable after multi-cycle washings.
  • Fatty acids such as lauric, myristic, palmitic, stearic and oleic acids, and poly-unsaturated fatty acids, as well as their water-soluble salts (i.e., "soaps") are employed in order to provide clear, homogeneous formulations containing the solvent and water.
  • Mixtures of fatty acids (or soaps) such as palm oil acids or coconut oil acids, in the Clg--C,8 carbon chain length, can be used.
  • the concentration of fatty acid (or soap) is from 5% to 50%, preferably 5% to 35%, most preferably 10% to 30%, and the weight ratio of fatty acid (or soap) :solvent is generally in the range of 4:1 to 1:4, preferably 3:1 to 1:2.
  • the potassium salt form is 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.
  • these fatty acid/soap materials provide an important detergency builder function in the present compositions.
  • 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 or pH-control agents, 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 generally 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.
  • detergent compositions 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 alkqlinity, itself. And, many commerically 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 with low HLB's.
  • nonionic surfactants such as C 14 - 15 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.
  • water-soluble, high ionic strength ingredients such as, for example, formate, sulfate or citrate increases stability.
  • water-soluble, low ionic strength materials such as ethanol has no stabilizing effect.
  • ionic strength ingredients Conjointly adding the ionic strength ingredients and the solvent-soluble ingredients further enhances stability.
  • the formulator can select ingredients with a view towards not only increasing microemulsion stability, but also providing optimal cleaning benefits.
  • citrate as an ionic strength agent which also has detergency builder properties
  • formate as an ionic strength agent which also stabilizes detergent enzymes
  • n-hexanol or benzyl alcohol or diethyl phthalate as a low HLB ingredient which also serves a useful co-solvent cleaning function.
  • the amount of ionic strength or low e.g. (2-5) HLB solvent-soluble ingredients, or both, used in the compositions will depend somewhat on the pH desired, the concentration of fatty acid, the level of grease-cutting solvent or the composition of the detersive surfactant system. Microemulsion stability can be monitored rather simply since the true microemulsions are clear, but turn hazy and non-homogeneous, with eventual phase separation at the point of instability. Moreover, true oil-in-water microemulsions turn hazy when diluted with water, whereas water-in-oil emulsions tend to gel, and micellar oil-plus-water systems remain clear
  • any of the well-known base materials can be used, for example, triethanolamine or alkali metal hydroxide.
  • Potassium hydroxide is preferred over sodium hydroxide, inasmuch as the ease of formulation of stable systems is increased substantially by the potassium cation.
  • quaternary ammonium compounds and amines constitute a highly preferred class of pH regulants and stabilizers in the oil-in-water microemulsion detergent compositions of the present type.
  • the quaternary or amine somehow associates with the fatty acid or anionic surfactants to form a complex which stabilizes the microemulsified oil (solvent).
  • the quaternaries and amines do not boost the pH very much towards the alkaline range (only a few 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.
  • Alkyl- or cyclo-alkyl amines such as coconut diethanol amine, coconutalkyl dimethyl amine, trioctyl amine and (most preferred) cyclohexyl amine, can be used at levels of 0.1-5% of the compositions to adjust the pH as high as 7.5.
  • 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.
  • 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 diluted with water, or used full-strength, all in standard fashion.
  • the preferred PCS/co-solvent mixtures can be used full-strength as de-greasing agents, for example, or can be separately packaged as laundry additives.
  • Examples I through IV illustrate highly preferred liquid laundry detergents containing the solvent mixtures of the invention.
  • oil-in-water microemulsions herein have the advantage that they can be packaged in polyethylene containers without effect on said containers.
  • compositions of Example I are stable, oil-in-water microemul-tions suitable for use as a laundry detergent.
  • compositions of Example I are modified by adding sufficient cyclohexyl amine (preferred) or dioctyldimethylammonium chloride to adjust the "as is" pH of the compositions from 6.6 to 7.3.
  • the resulting compositions exhibit exceptionally good fabric cleaning and whiteness maintenance.
  • compositions of Example I are modified by replacing the Ethoxylated Polyamine with any of the following alkoxylated polyamines A, B or C, having the general formula disclosed hereinbefore:
  • compositions comprising PCS and polar co-solvent are especially preferred for use in liquid cleaning and spot remover compositions.
  • compositions Vll(A-E) can be applied "neat” to remove spots and stains from fabrics, or added to an aqueous cleaning batch comprising conventional detersive ingredients.
  • 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.

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Claims (7)

1. Mélange de solvants utilisable dans des compositions détergentes, caractérisé en ce qu'il comprend:
a) un hydrocarbure alkyl(en C6-C,)aromatique; et
b) un co-solvant polaire choisi parmi les esters de l'acide phtalique, les alcools en C6―C12, les solvants de type alcoxyalcanol et les solvants de type 2-(2-alcoxyéthoxy)éthanol; en un rapport pondéral de (a) à (b) de 10:1 à 1:10.
2. Mélange de solvants selon la revendication 1, dans lequel l'alkylbenzène est de l'octylbenzène.
3. Mélange de solvants selon les revendications 1 et 2, dans lequel le co-solvant de type ester d'acide phtalique est le phtalate de diéthyle ou le phtalate de dibutyle.
4. Mélange de solvants selon les revendications 1 et 2, dans lequel le co-solvant est choisi parmi le 2-(2-butoxyéthoxy)éthanol, l'alcool benzylique, le 2-butoxyéthanol, l'alcool phénéthylique et le dodécanol.
5. Mélange de solvants selon la revendication 1, qui comprend en outre de l'eau et qui se trouve sous forme d'une microémulsion huile dans l'eau.
6. Procédé de blanchissage des tissus par agitation des tissus dans une liqueur aqueuse contenant une composition comprenant un mélange de solvants selon l'une quelconque des revendications 1 à 5.
7. Procédé selon la revendication 6, dans lequel le pH de la liqueur est de 6,5 à 8,0.
EP84305318A 1984-04-07 1984-08-06 Composition de nettoyage avec un solvant Expired EP0164467B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84305318T ATE35426T1 (de) 1984-04-07 1984-08-06 Reinigungsmittelzusammensetzungen mit einem loesungsmittel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848409055A GB8409055D0 (en) 1984-04-07 1984-04-07 Cleaning compositions
GB8409055 1984-04-07

Publications (2)

Publication Number Publication Date
EP0164467A1 EP0164467A1 (fr) 1985-12-18
EP0164467B1 true EP0164467B1 (fr) 1988-06-29

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EP84305318A Expired EP0164467B1 (fr) 1984-04-07 1984-08-06 Composition de nettoyage avec un solvant

Country Status (10)

Country Link
EP (1) EP0164467B1 (fr)
JP (1) JPH0633424B2 (fr)
AT (1) ATE35426T1 (fr)
CA (1) CA1230535A (fr)
DE (1) DE3472417D1 (fr)
ES (1) ES8607380A1 (fr)
FI (1) FI73733C (fr)
GB (1) GB8409055D0 (fr)
GR (1) GR80088B (fr)
IE (1) IE57572B1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8519699D0 (en) * 1985-08-06 1985-09-11 Procter & Gamble Scouring compositions
ES2000190A4 (es) * 1986-01-21 1988-01-01 Pennwalt Corp Detergente textil mejorado.
EP0286167A3 (fr) * 1987-04-06 1989-08-30 The Procter & Gamble Company Produits de nettoyage pour surfaces dures
DE3713702C1 (de) * 1987-04-24 1988-05-11 Freudenberg Carl Fa Mittel zum Reinigen von Verarbeitungsanlagen fuer reaktive isocyanathaltige Mehrkomponentengemische
EP0330379A3 (fr) * 1988-02-26 1990-04-18 The British Petroleum Company p.l.c. Compositions de nettoyage
DE3808695A1 (de) * 1988-03-16 1989-10-05 Henkel Kgaa Fluessiges waschmittel
DE69004521T2 (de) * 1989-08-07 1994-05-05 Du Pont Reinigungsmittel auf der Basis eines dibasischen Esters und eines Kohlenwasserstofflösungsmittels und Reinigungsverfahren.
US5096501A (en) * 1990-08-27 1992-03-17 E. I. Du Pont De Nemours & Company Environmentally safe cleaning process and cleaning composition useful therein
DK0553208T3 (da) * 1990-10-17 1996-09-02 Bush Boake Allen Ltd Fremgangsmåde og præparat til rensning af artikler
CA2120375A1 (fr) * 1993-04-02 1994-10-03 John Klier Produit de pretraitement pour la lessive a proprietes nettoyantes ameliorees pour les souillures huileuses
AU671895B2 (en) * 1993-04-12 1996-09-12 Colgate-Palmolive Company, The Tricritical point composition
JP3390245B2 (ja) * 1993-06-01 2003-03-24 富士通株式会社 洗浄液及び洗浄方法
US5634984A (en) * 1993-12-22 1997-06-03 Union Oil Company Of California Method for cleaning an oil-coated substrate
AU1894795A (en) * 1994-03-31 1995-10-23 Unilever Plc Detergent compositions
AU1894695A (en) * 1994-03-31 1995-10-23 Unilever Plc Detergent compositions
EP0834550A1 (fr) * 1996-10-01 1998-04-08 The Procter & Gamble Company Compositions détergentes pour le linge
US6239097B1 (en) * 1997-01-10 2001-05-29 Product Source International, Inc. Cleaning formulation
US6916773B2 (en) * 2002-07-31 2005-07-12 Ecolab, Inc. Non-surfactant solubilizing agent
JP6368132B2 (ja) * 2014-04-23 2018-08-01 花王株式会社 硬質表面用洗浄剤組成物
WO2016178840A1 (fr) * 2015-05-04 2016-11-10 Elevance Renewable Sciences, Inc. Compositions oléfiniques et leur utilisation en tant qu'agents de nettoyage

Citations (6)

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Publication number Priority date Publication date Assignee Title
EP0040882A1 (fr) * 1980-05-27 1981-12-02 THE PROCTER & GAMBLE COMPANY Compositions détergentes liquides
EP0079746A2 (fr) * 1981-11-14 1983-05-25 The Procter & Gamble Company Compositions pour le traitement de matières textiles
EP0080749A1 (fr) * 1981-11-12 1983-06-08 THE PROCTER & GAMBLE COMPANY Compositions détergentes liquides
EP0126545A1 (fr) * 1983-04-19 1984-11-28 The Procter & Gamble Company Système de solution contenant des substances servant à nettoyer liquides et écurantes
EP0137615A1 (fr) * 1983-08-11 1985-04-17 The Procter & Gamble Company Compositions de nettoyage de tissus pour enlever des taches
EP0137616A1 (fr) * 1983-08-11 1985-04-17 The Procter & Gamble Company Détergents liquides avec un solvant

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US3354093A (en) * 1965-01-15 1967-11-21 Phillips Petroleum Co Removal of polymerized materials from surfaces

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
EP0040882A1 (fr) * 1980-05-27 1981-12-02 THE PROCTER & GAMBLE COMPANY Compositions détergentes liquides
EP0080749A1 (fr) * 1981-11-12 1983-06-08 THE PROCTER & GAMBLE COMPANY Compositions détergentes liquides
EP0079746A2 (fr) * 1981-11-14 1983-05-25 The Procter & Gamble Company Compositions pour le traitement de matières textiles
EP0126545A1 (fr) * 1983-04-19 1984-11-28 The Procter & Gamble Company Système de solution contenant des substances servant à nettoyer liquides et écurantes
EP0137615A1 (fr) * 1983-08-11 1985-04-17 The Procter & Gamble Company Compositions de nettoyage de tissus pour enlever des taches
EP0137616A1 (fr) * 1983-08-11 1985-04-17 The Procter & Gamble Company Détergents liquides avec un solvant

Also Published As

Publication number Publication date
FI843161L (fi) 1985-10-08
FI73733C (fi) 1987-11-09
EP0164467A1 (fr) 1985-12-18
GB8409055D0 (en) 1984-05-16
ES8607380A1 (es) 1986-05-16
JPS60212498A (ja) 1985-10-24
ES535070A0 (es) 1986-05-16
IE842068L (en) 1985-10-07
FI843161A0 (fi) 1984-08-10
JPH0633424B2 (ja) 1994-05-02
FI73733B (fi) 1987-07-31
ATE35426T1 (de) 1988-07-15
CA1230535A (fr) 1987-12-22
GR80088B (en) 1984-10-30
DE3472417D1 (en) 1988-08-04
IE57572B1 (en) 1992-12-16

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