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US3812042A - Clear liquid detergent package - Google Patents

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Publication number
US3812042A
US3812042A US26556672A US3812042A US 3812042 A US3812042 A US 3812042A US 26556672 A US26556672 A US 26556672A US 3812042 A US3812042 A US 3812042A
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alkyl
detergent
liquid
clear
weight
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D Verdier
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Colgate-Palmolive Co
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Colgate-Palmolive Co
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29Sulfates of polyoxyalkylene ethers
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/143Sulfonic acid esters
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials characterised by their shape or physical properties
    • C11D17/04Detergent materials characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041Compositions releasably affixed on a substrate or incorporated into a dispensing means

Abstract

A DETERGENT PACKAGE COMPRISING A TRANSPARENT, PLASTIC CONTAINER AND ACLEAR, STABLE LIQUID DETERGENT COMPOSITION THEREIN CONSISTING ESSENTIALLY OF ABOUT 10 TO 60% BY WEIGHT PF A C10 TO C20 ALKYL SULPHONATE SOLUBLIZED IN AN AQUEOUS LIQUID VEHICLE WHICH MAY INCLUDE UP TO 15% BY WEIGHT OF UREA, C2 TO C3 ALKANOL AND/OR SULPHONATED HYDROTROPE AS A SOLUBILIZING AGENT.

Description

United States Patent 3,812,042 CLEAR LIQUID DETERGENT PACKAGE Denise Verdier, Le Bourget, France, assignor to Colgate- Palmolive Company, New York, NY. No Drawing. Filed June 23, 1972, Ser. No. 265,566 Int. Cl. Clld 17/00 US. Cl. 252-90 9 Claims ABSTRACT OF THE DISCLOSURE A detergent package comprising a transparent, plastic container and a clear, stable liquid detergent composition therein consisting essentially of about 10 to 60% by weight of a C to C alkyl sulphonate solubilized in an aqueous liquid vehicle which may include up to 15% by weight of urea, C to C alkanol and/or sulphonated hydrotrope as a solubilizing agent.

The present invention relates to a product comprising a clear or transparent plastic container containing a clear, stable alkane sulfonate liquid detergent composition useful, for example, for washing dishes and laundry.

Manufacturers of detergents intended for use in washing dishes and soiled clothing have recognized the commercial advantage of packaging them in a form that is convenient for purchasers to use. Historically heavy duty laundry products have largely been spray dried particles sold in carboard cartons. It would, however, be desirable to prepare detergent compositions in the form of pourable liquids and sell them in suitable reclosable containers. In practice it is highly desirable to prepare dish washing and laundry compositions in pourable liquid form at concentrations so that the user can employ approximately the same volume of liquid detergent as the amount of spray dried detergents which they are accustomed to using. At the necessary concentrations to accomplish this purpose it becomes difiicult to dissolve or stably suspended the active ingredients in water. The result is that particles on storing would tend to settle to the bottom of the container where they would agglomerate or cake so that resuspension is difficult if not impossible. Solution of this problem by formulating a more dilute composition is impracticable since the composition would become too dilute for practical purposes such as the necessity of using much larger volumes of liquid detergent to get the same washing power to which consumers were accustomed when using spray dried products. In addition freight costs become very high because of the weight and bulk of the more dilute compositions. Some progress has been made in formulating more stable suspensions with less tendency for suspended particles to settle and cake on storage, but these products are opaque liquids.

Liquid dish washing and light duty alkyl aryl sulfonate and alkyl sulfate laundry detergents have been proposed which detergents vary from clear to opaque appearance. In general, where clear compositions have been obtained, they were relatively dilute solutions, or remained clear over only a limited temperature range near normal room temperatures so that at lower temperatures, such as are encountered even in temperature climates in winter, the products become cloudy, or they contained relatively high proportions of solubilizers that made them expensive and less efficient. While the precipitation of ingredients from solution as temperature drops may not adversely affect performance of the liquid detergent, consumers consider the development of cloudiness as a result of such precipitation a defect especially in a normally clear product. This phenomenon has caused manufacturers to package opaque and unstable liquids in dark colored glass bottles and opaque plastic containers so as to conceal the packaged liquid from the view of purchasers, or to color the liquid 3,812,042 Patented May 21, 1974 "ice so as to make the precipitate less noticeable in clear containers.

Some shampoo compositions have been formulated which are clear liquids with fairly acceptable stability at temperatures down to about the freezing point of water which has enabled them to be sold in clear glass containers. While clear liquids packaged in clear glass present an attractive appearance on the shelf of the market where they are sold, glass containers have the disadvantages of relatively high weight.

The present invention provides a product which avoids or overcomes the difliculties and problems of the prior art in that a liquid alkane sulfonate detergent composition, which is formulated to be clear and stable down to a preselected low temperature, is packaged in clear plastic containers. This combination provides an attractive, lightweight package on the shelves of markets where it is sold and in the homes of users. The concentration of active ingredients in the liquid detergent can be in the range employed for packaged spray dried detergents sold in cartons and the ratio of the weight of the plastic container to the weight of the liquid contents is not significantly different from the ratio of the weight of the carton to the weight of the powdered contents. The plastic containers, moreover, are practically unbreakable when dropped from heights normally encountered in household use.

Liquid detergent compositions for use in the present invention contain an alkane sulfonate detergent dissolved in water and may be formulated to include an alkyl ether sulfate detergent, a foam booster, a solubility promoter, and a viscosity regulator.

The alkane sulfonates useful in the present invention are usually mixed secondary alkyl sulfonates having from about 10-20 carbon atoms per molecule, preferably 13-18 and most desirably 1315. These secondary alkane sulfonates are uniquely suitable for the present invention because of their high solubility in water compared to alkyl aryl sulfonates and other sulfuric acid reaction products heretofore used for dish washing and laundry detergent compositions. This makes it possible to formulate clear, stable liquids of high active ingredient content that give a sparkling appearance in the clear plastic containers. These sulfonates are preferably prepared by subjecting a cut of paraffin, corresponding to the chain lengths specified above, to the action of sulfur dioxide and oxygen in accordance with the well-known sulfoxidation process. The product of this reaction is a secondary sulfonic acid which is then neutralized with a suitable base to provide the water soluble secondary alkyl sulfonate for use in the present invention. Similar usable secondary alkyl sulfonates may be obtained by other methods, e.g., by the sulfochlorination method in which chlorine and sulfur dioxide are reacted with parafiins in the presence of actinic light, the resulting sulfonyl chlorides being hydrolyzed and neutralized to form the secondary alkyl sulfonates.

It is preferable to include an alkyl ether sulfate in the composition represented by the formula:

in which R is a primary or secondary alkyl group that may be straight or branched having from 10 to 18 carbon atoms, preferably 12 to 14, X is a suitable cation, as hereinafter defined, and n is a number from 1 to 10, preferably 3 to 6. These detergents can be produced by sulfating the corresponding ether alcohol and then neutralizing the resulting sulfuric acid ester thereof.

The cation of the paraffin sulfonate and alkyl ether sulfate may be an alkali metal, an alkaline earth metal (e.g. magnesium), ammonium or lower amine (including alkylolamines). It is preferred to use the sodium salt of the parafiin sulfonic acid and an ammonium salt of the alkyl ether sulfuric acid ester.

The best performance of the liquid detergent compositions containing alkane sulfonates and alkyl ether sul-' fates is obtained when the ratio of the proportion by weight of alkane sulfonate to alkyl ether sulfate is within the range of 10:1 to 1:1, preferably about 6:1 to 4:1.

In general the content of synthetic detergent will be within the range of 1060%, advantageously about 15- 40%, and preferably about 20-35%.

Foam boosters which may be used include non-ionic surface active agents such as higher alcohols, ether alcohols, ethoxylated phenols, and higher fatty acid amides.

The higher alcohols and ether alcohols which may be used as foam builders in the present invention are represented by the formula:

exemplifications of which include decoxytriethoxyethanol, lauroxytetraethoxyethanol, tetradecoxypentaethoxyethanol, hexadecoxynonaethoxyethanol and octadecoxyheptaethoxyethanol among the general class illustrated, and referring to the formula in which R represents an alkyl group that may be straight or branched having from 10 to 18 carbon atoms and n is a number from to 10, preferably 3 to 6. In the case of higher ether alcohols, the preferred chain length for the alkyl group is from C -C when n has a value from 3-6 as preferred.

It is preferred that the liquid detergent composition contain a higher fatty acid alklolamide material in sufiicient amount to set as a suds builder. Its presence results in a product which exhibits high foaming power in use, particularly in the stability of the foam generated during dish washing or laundering operations. It should not be employed in an amount suflicient to destroy the desired physical properties. The acyl radical of the alkylolamide is selected from the class of fatty acids having 8 to 18 carbon atoms and each alkylol group usually has up to 3 carbon atoms. It is preferred to use the monoethanolamides of'lauric and myristic acids but diethanolamides and isopropanolamides as well as monoethanolamides of fatty acids having about 10 to 14 carbon atoms in the acyl radical are satisfactory. Examples are capric, lauric, myristic and coconut monoethanolamides, diethanolamides and isopropanolamides and mixtures thereof. There may be employed also the alkylolamides which are substituted by additional alkylol groups, suitable examples may be the above amides condensed with one or two moles of ethylene oxide.

The non-ionics may be present in the formula up to about 15% by weight of the product, preferably up to about 4% of alcohol ether and up to about 8% of fatty acid alkylolamide, and the ratio of detergent to nonionic may be from 10:1 to 1:1.

The composition may include at least one solubility promoter in amounts up to about 10%. Suitable promoters include hydrotropic substances such as lower aliphatic alcohols, urea and the alkali metal organic sulfonated (including sulfated) salts having a lower alkyl group up to about 6 carbon atoms. The preferred sulfonated hydrotropes are alkyl aryl sulfonates having up to 3 carbon atoms in the lower alkyl group, e.g., the sodium and potassium xylene, toluene, ethylbenzene and isopropyl benzene (cumene) sulfonates. Sulfonates made from xylene include orthoxylene sulfonate, metaxylene sulfonate, paraxylene sulfonate and ethyl-benzene sulfonate. Commercial xylene sulfonates usually contain metaxylene sulfonate as the main ingredient. Analysis of typical commercial xylene sulfonate products shows about 40-50% metaxylene sulfonate, 1035% orthoxylene sulfonate and 15-30% paraxylene sulfonate with 0-20% ethyl-benzene sulfonate. Any suitable isomeric mixture, however, may be employed. Sodium cumene sulfonate and sodium xylene sulfonate are preferred lower alkyl aryl sulfonates to use in the compositions of the present invention. It is also permissible to use suitably lower alkyl sulfate salts having about 5 to 6 carbon atoms in the alkyl group such as alkali metal n-amyl and n-hexyl sulfates.

Lower aliphatic alcohols may also be used as a viscosity regulator, particularly if it is used together with urea. The lower aliphatic alcohols used in the compositions of the invention, either alone or in combination with the hydrotropic substance, are preferably lower alcohols having two or three carbon atoms, including ethanol, propanol, isopropanol and propylene glycol, and in general ethyl alcohol will be used.

The solubility promoter and viscosity regulator will advantageously be chosen to complement each other and so that together they act as a viscosity and clarity control system.

The viscosity and clarity control system useful in the liquid detergent composition of the invention comprises urea, a lower aliphatic alcohol, and optionally a water soluble hydrotropic substance such as those described above which are effective in promoting the compatibility of the ingredients in the liquid product and can be substituted for part of the urea or alcohol. The use of the viscosity and clarity control system imparts superior low temperature clarity of the liquid detergent composition and provides control of the viscosity of the product over a wider range for any particular concentration of active ingredients.

The exact proportions of urea, lower alcohol, and optionally hydrotropic substance best suited for any particular composition may be determined by the formulator by conventional tests. The weight content of this viscosity and control system based upon the total composition will vary from 25-15% and preferably from 6% to 13%. Within that range, the urea and the alcohol will vary within the ranges of 0.5 to 50%, preferably 1% to 4%; and 2 to 10%, preferably 5% to 8%, respectively. It is desirable to maintain the ratio of urea to alcohol within the range of 111.5 to 1:3 parts by weight, most preferably, at about 1:25 when using an active ingredient content above about 30% by weight, preferably 35-45% including alkylolamide or the like. Varying amounts of hydrotrope such as xylene sulfonate or the like may be added or substituted in part for the alcohol or urea so as to form a ternary system with special properties such as to markedly increase the viscosity to greater levels. The amount should be selected by formulation so as to maintain a satisfactory viscosity and cloud point and maintain other desirable properties. Generally, the hydrotrope may constitute up to about 50% by weight of the total viscosity and control system.

The liquid detergents used in the present invention may also contain any of the additives heretofore used in other liquid detergent compositions such as sequestrants, e.g., salts of ethylenediamine tetraacetic acid, such as the sodium and potassium salts, and salts of hydroxy ethyl ethylene diamine triacetate. It is desirable in some cases to tint or color the liquid detergent composition and any suitable dyes may be used for this purpose and it is to be understood that clear applies to colored as well as water-white compositions. Perfume may also be added to these compositions to give them a pleasant odor.

Water is used as the liquid vehicle for the liquid detergent compositions of the present invention. It will vary in proportion from about 50% to depending upon the content of the other ingredients of the composition.

The clear plastic containers used in this invention are made from suitable plastics including polyvinyl chloride, polystyrene and compounds, propylene modified polyvinyl chloride, acrylic multipolymers, nitrile-rubber-modified acrylonitrile-methyl acrylate copolymers (such as Barex produced by Sohio), methacrylonitrile-styrene mixtures (such as Lopac produced by Monsanto) and b1- axially oriented polypropylene (such as produced by Phillips Petroleum). The plastics, as well as the detergent compositions, may be tinted as well as water-white and a water-white container may be used with water-white or tinted compositions and vice versa.

Although the present invention has been described and illustrated with reference to certain specific ingredients for the clear liquid detergent and plastics for the container, these are to be considered as illustrative of and not as limitations on the present invention. All proportions are given hereinabove in percentages by weight of the entire composition unless otherwise indicated.

What is claimed is:

1. A detergent package consisting essentially of in combination a clear plastic container and a body of clear, stable liquid detergent composition therein, said detergent composition consisting essentially of 10% to 60% by weight of a water-soluble mixed secondary alkyl sulfonate salt having from about 10 to 20 carbon atoms in the molecule and selected from the group consisting of alkali metal, alkaline earth metal, ammonium and lower amine salts, solubilized in an aqueous liquid vehicle containing from to 15% by weight of a solubility promoter selected from the group consisting of urea, C -C lower alkanols, alkyl benzene sulfonates containing up to three carbon atoms in the alkyl group, lower alkyl sulfate salts having 5 to 6 carbon atoms in the alkyl group, and mixtures thereof.

2. A package as set forth in claim 1 in which said detergent composition contains a mixture of said alkyl sulfonate salt and an alkyl ether sulfate represented by the formula RO(C H O),,SO X wherein R is a primary or secondary alkyl having 10 to 18 carbon atoms, n is 1 to 10, and X is selected from the group consisting of alkali metal, alkaline earth metal, ammonium, and lower amine, the weight ratio of said alkyl sulfonate to said alkyl ether sulfate being in the range of 10:1 to 1:1.

3. A package as set forth in claim 2 in which the detergent composition includes in addition up to by weight of a nonionic foam booster selected from the group consisting of alkanols represented by the formula RO(C H O),,'H in which R is an alkyl group having 10 to 18 carbon atoms and n is a number from 0 to 10, and

monoand diethanolamides and isopropanolamides of a Cg-Cm fatty acid.

4. A package as set forth in claim 3 in which said solubility promoter is a mixture of 0.5 to 5% by weight of urea and 2 to 10% by weight of said lower alkanol, the weight ratio of urea to lower alkanol being within the range of 1:15 to 1:3.

5. A package as set forth in claim 1 in which the clear water-white plastic container is made from a plastic selected from the group consisting of polyvinyl chloride, polystyrene, propylene modified polyvinyl chloride, acrylic polymers, nitrile-rubber-modified acrylonitrilemethyl acrylate copolymers, methacrylonitrile-styrene mixtures, and biaxially oriented propylene.

6. A product as set forth in claim 4 in which the control system includes an alkali metal organic sulfonated or sulfated salt.

7. A product as set forth in claim 1 in which the clear plastic container is polyvinyl chloride.

8. A product as set forth in claim 1 in which the clear plastic container is nitrile-rubber-modified acrylonitrilemethyl acrylate copolymer.

9. A product as set forth in claim 1 in which the clear plastic container is a mixture of methacrylonitrile and styrene.

References Cited UNITED STATES PATENTS 3,211,660 10/1965 Marion et al 252-Dig. 15 2,366,027 12/1944 Henke 252554 2,920,045 1/ 1960 Hearn et a1. 252Dig. 14

3,527,707 9/1970 McAteer et a1. 252554 3,540,577 11/1970 Trementozzi et a1. 206-84 3,674,374 7/1972 Zoki et a1. 252552 WILLIAM E. SCHULZ, Primary Examiner US. Cl. X.R.

252552; Dig. 14

US3812042A 1971-05-07 1972-06-23 Clear liquid detergent package Expired - Lifetime US3812042A (en)

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GB (1) GB1382295A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935129A (en) * 1973-10-25 1976-01-27 Jabalee Walter J Liquid cleaning compositions
US4101456A (en) * 1975-04-18 1978-07-18 Colgate-Palmolive Company Light duty liquid detergent
US4102826A (en) * 1972-12-06 1978-07-25 Colgate-Palmolive Company Liquid detergent
US4166048A (en) * 1975-09-22 1979-08-28 Kao Soap Co., Ltd. High foaming detergent composition having low skin irritation properties
US4224195A (en) * 1976-04-28 1980-09-23 Kabushiki Kaisha Tsumura Jutendo Process for handwashing socks or stockings
US4260528A (en) * 1979-06-18 1981-04-07 Lever Brothers Company Aqueous high viscosity liquid dishwasher compositions
US4316824A (en) * 1980-06-26 1982-02-23 The Procter & Gamble Company Liquid detergent composition containing alkyl sulfate and alkyl ethoxylated sulfate
US4492646A (en) * 1980-02-05 1985-01-08 The Procter & Gamble Company Liquid dishwashing detergent containing anionic surfactant, suds stabilizer and highly ethoxylated nonionic drainage promotor
US4493370A (en) * 1983-01-27 1985-01-15 Phillips Petroleum Company Urea as a cosurfactant in enhanced oil recovery processes
US4671895A (en) * 1985-11-15 1987-06-09 Colgate-Palmolive Company Liquid detergent compositions
US5055215A (en) * 1989-03-03 1991-10-08 Fabritec International Corporation Unit-dose drycleaning product and method
US5089162A (en) * 1989-05-08 1992-02-18 Lever Brothers Company, Division Of Conopco, Inc. Cleaning compositions with bleach-stable colorant
US5196132A (en) * 1989-03-03 1993-03-23 Fabritec International Corporation Unit-dose drycleaning product
WO2000036068A1 (en) * 1998-12-16 2000-06-22 Unilever N.V. Transparent/translucent liquid enzyme compositions in clear bottles comprising fluorescent dye or uv absorber
WO2000036062A2 (en) * 1998-12-16 2000-06-22 Unilever N.V. Transparent/translucent liquid enzyme compositions in clear bottles comprising antioxidants
WO2000036067A1 (en) * 1998-12-16 2000-06-22 Unilever N.V. Detergent composition
WO2000036074A1 (en) * 1998-12-16 2000-06-22 Unilever N.V. Transparent/translucent liquid compositions in clear bottles comprising colorant and fluorescent dye or uv absorber
WO2001049575A1 (en) 1999-12-29 2001-07-12 Unilever Plc Transparent/translucent bottles containing fluorescent dye in sidewall
WO2001085568A2 (en) 2000-05-10 2001-11-15 Unilever Plc Ultraviolet light-blocking bottle labels
US20060058215A1 (en) * 1996-03-22 2006-03-16 Toan Trinh Concentrated, stable, preferably clear, fabric softening composition
US20070090010A1 (en) * 2005-10-20 2007-04-26 The Procter & Gamble Company Transparent or translucent filled package exhibiting a colored appearance
WO2014095459A1 (en) * 2012-12-17 2014-06-26 Henkel Ag & Co. Kgaa Method to prevent discoloration of colored liquids

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8405266D0 (en) * 1984-02-29 1984-04-04 Unilever Plc Detergent compositions
FR2621596B1 (en) * 1987-06-17 1995-07-13 Colgate Palmolive Co Non-aqueous liquid compositions for treating fabrics and laundry, comprising an organophilic clay, laundry detergent package for single use, and unitary articles laundry detergents containing
US5320783A (en) * 1992-11-04 1994-06-14 The Procter & Gamble Company Detergent gels containing ethoxylated alkyl sulfate surfactants in hexagonal liquid crystal form
US5780415A (en) * 1997-02-10 1998-07-14 Colgate-Palmolive Company Stable microemulsion cleaning composition
US20070267444A1 (en) * 2006-05-05 2007-11-22 De Buzzaccarini Francesco Concentrated compositions contained in bottom dispensing containers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1467619A1 (en) * 1965-11-27 1969-02-13 Henkel & Cie Gmbh Color Stable, disinfectant-containing liquid washing, cleaning and detergent

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102826A (en) * 1972-12-06 1978-07-25 Colgate-Palmolive Company Liquid detergent
US3935129A (en) * 1973-10-25 1976-01-27 Jabalee Walter J Liquid cleaning compositions
US4101456A (en) * 1975-04-18 1978-07-18 Colgate-Palmolive Company Light duty liquid detergent
US4166048A (en) * 1975-09-22 1979-08-28 Kao Soap Co., Ltd. High foaming detergent composition having low skin irritation properties
US4224195A (en) * 1976-04-28 1980-09-23 Kabushiki Kaisha Tsumura Jutendo Process for handwashing socks or stockings
US4260528A (en) * 1979-06-18 1981-04-07 Lever Brothers Company Aqueous high viscosity liquid dishwasher compositions
US4492646A (en) * 1980-02-05 1985-01-08 The Procter & Gamble Company Liquid dishwashing detergent containing anionic surfactant, suds stabilizer and highly ethoxylated nonionic drainage promotor
US4316824A (en) * 1980-06-26 1982-02-23 The Procter & Gamble Company Liquid detergent composition containing alkyl sulfate and alkyl ethoxylated sulfate
US4493370A (en) * 1983-01-27 1985-01-15 Phillips Petroleum Company Urea as a cosurfactant in enhanced oil recovery processes
US4671895A (en) * 1985-11-15 1987-06-09 Colgate-Palmolive Company Liquid detergent compositions
US5055215A (en) * 1989-03-03 1991-10-08 Fabritec International Corporation Unit-dose drycleaning product and method
US5196132A (en) * 1989-03-03 1993-03-23 Fabritec International Corporation Unit-dose drycleaning product
US5089162A (en) * 1989-05-08 1992-02-18 Lever Brothers Company, Division Of Conopco, Inc. Cleaning compositions with bleach-stable colorant
US20060058216A1 (en) * 1996-03-22 2006-03-16 Toan Trinh Concentrated, stable, preferably clear, fabric softening composition
US20060058215A1 (en) * 1996-03-22 2006-03-16 Toan Trinh Concentrated, stable, preferably clear, fabric softening composition
WO2000036067A1 (en) * 1998-12-16 2000-06-22 Unilever N.V. Detergent composition
WO2000036074A1 (en) * 1998-12-16 2000-06-22 Unilever N.V. Transparent/translucent liquid compositions in clear bottles comprising colorant and fluorescent dye or uv absorber
US6159918A (en) * 1998-12-16 2000-12-12 Unilever Home & Personal Care U.S.A., Division Of Conopco, Inc. Transparent/translucent liquid enzyme compositions in clear bottles comprising UV absorber
WO2000036068A1 (en) * 1998-12-16 2000-06-22 Unilever N.V. Transparent/translucent liquid enzyme compositions in clear bottles comprising fluorescent dye or uv absorber
WO2000036062A3 (en) * 1998-12-16 2001-11-01 Unilever Nv Transparent/translucent liquid enzyme compositions in clear bottles comprising antioxidants
WO2000036062A2 (en) * 1998-12-16 2000-06-22 Unilever N.V. Transparent/translucent liquid enzyme compositions in clear bottles comprising antioxidants
US6630437B1 (en) * 1998-12-16 2003-10-07 Unilever Home & Personal Care Usa , Division Of Conopco, Inc. Transparent/translucent liquid compositions in clear bottles comprising colorant and fluorescent dye or UV absorber
US6756350B1 (en) * 1999-12-29 2004-06-29 Unilever Home & Personal Care Usa, A Division Of Conopco, Inc. Transparent/translucent bottles
WO2001049575A1 (en) 1999-12-29 2001-07-12 Unilever Plc Transparent/translucent bottles containing fluorescent dye in sidewall
US6632783B1 (en) 2000-05-10 2003-10-14 Unilever Home & Personal Care Usa, A Division Of Conopco, Inc. Liquid detergent package with transparent/translucent bottle labels with UV absorbers
WO2001085568A2 (en) 2000-05-10 2001-11-15 Unilever Plc Ultraviolet light-blocking bottle labels
US20070090010A1 (en) * 2005-10-20 2007-04-26 The Procter & Gamble Company Transparent or translucent filled package exhibiting a colored appearance
WO2014095459A1 (en) * 2012-12-17 2014-06-26 Henkel Ag & Co. Kgaa Method to prevent discoloration of colored liquids

Also Published As

Publication number Publication date Type
DE2231304A1 (en) 1973-01-18 application
FR2136913B1 (en) 1973-05-11 grant
JPS4861508A (en) 1973-08-29 application
DE2231304C2 (en) 1986-09-18 grant
GB1382295A (en) 1975-01-29 application
FR2136913A1 (en) 1972-12-29 application

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