US3904543A - Detergent film - Google Patents
Detergent film Download PDFInfo
- Publication number
- US3904543A US3904543A US386343A US38634373A US3904543A US 3904543 A US3904543 A US 3904543A US 386343 A US386343 A US 386343A US 38634373 A US38634373 A US 38634373A US 3904543 A US3904543 A US 3904543A
- Authority
- US
- United States
- Prior art keywords
- water
- detergent
- solution
- parts
- film
- 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 - Lifetime
Links
- 239000003599 detergent Substances 0.000 title abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920001577 copolymer Polymers 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims abstract description 5
- 230000008020 evaporation Effects 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- 229920000847 nonoxynol Polymers 0.000 claims description 3
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical class CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical group [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 claims 2
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 claims 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- -1 ethoxylated alkyl phenols Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000001668 ameliorated effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
Definitions
- Still another object of this invention is the provision of a detergent in precursor form which substantially alleviates the above mentioned problems of the detergent trade.
- Another object of this invention is to provide a deter gent composition that is safe to substantially allsurfaces in high concentrations for short periods of time if applied directly to a surface moistened with water.
- a solution comprising water, a nonionic detergent of the class consisting of ethoxylated alkyl phenols, preferably an ethoxylated nonyl or octyl phenol containing from 9 to mols of ethylene oxide repeating units; a resin of the alkylene maleic anhydride type such as a methyl vinyl ether maleic anhydride copolymer or ethylene maleic anhydride copolymer, preferably the former; and a small amount of an alkaline agent such as an alkali hydroxide, preferaby sodium hydroxide is composed and briefly heated at elevated temperature, about F, for a short time period, about 30 minutes, during which interaction between the nonionic and the polymer occurs resulting in partial esterification of the carboxyl groups of the copolymer.
- a nonionic detergent of the class consisting of ethoxylated alkyl phenols, preferably an ethoxylated nonyl or octyl phenol containing from
- the mixture is allowed to cool; then cast upon a suitable surface and allowed to dry either spontaneously or by supplying hot air to the exposed surface.
- suitable surface examples include glass, plastic treated surfaces such as polyethylene, polyvinyl chloride and Teflon.
- the film prepared as just described can be of any desired thickness. It can be readily stripped from the receiving surface and cut to any desired dimension. For example, a film having a thickness of about 18 mils and an area of about 18 square inches when dissolved in one gallon of water provides an effective detergent solution.
- a pliant, non-tacky, self-sustaining film having a water content of about 2% by weight and formed by casting upon a receptive surface to permit evaporation of water from a solution consisting of about 83 parts of water, 10 parts of an ethoxylated nonyl phenol having from 9l() mols. of ethylene oxide, 4 parts of methyl vinyl ether maleic anhydride copolymer, and about 3 parts of a 20% w/w sodium hydroxide solution; said solution being heated to about 195F. for about thirty minutes, then cooled to the point of clarity at which the pH is about 4.0-4.4.
Abstract
A pliant, self-sustaining film formed by evaporation of water from a solution comprising water; a nonionic detergent; an alkylene maleic anhydride copolymer; and a small amount of an alkali hydroxide is capable upon dissolving in water of providing a highly effective detergent solution.
Description
United States Patent Knighten Sept. 9, 1975 [541 I DETERGENT FILM 1,648,778 11 1927 Mitchell 252 90 2,356,168 8 1944 [75] Inventor: James G. Knighten, S1mpsonv1lle, 3328309 4, 3,359,206 12/1967 [73] Assignee: Morton-Norwich Products, Inc., Z176 7/1969 Norwich N Y 3,591,508 7/1971 3,679,592 7/1972 [22] Filed: Aug. 7, 1973 31729-421 [211 APPI- 386,343 Primary Examiner-Ralph S. Kendall Assistant ExaminerDennis L. Albrecht 52 us. c1. 252/174; 252/89; 252/92; Attorney, Agent, or Firm-Anthony Frame 252/142; 252/D1G. 16 [51] Int. Cl. CllD 1/70; C1 1D 3/37; ABSTRACT C1 1D 1 1/00; Cl 1 D 17/06 A pliant, self-sustaining film formed by evaporation of [58] Field of Search 252/90, 92, 134, 142, 156, water from a solution comprising water; a nonionic 252/174 detergent; an alkylene maleic anhydride copolymer; and a small amount of an alkali hydroxide is capable [56] References Cited upon dissolving in water of providing a highly effective UNITED STATES PATENTS detergent Solution- 26L897 8/1882 Bankmann 252/134 1 Claim, No Drawings DETERGENT FILM This invention relates to detergent solutions and aims to provide means for obtaining such solutions in facile, economical and compact form.
The use of detergents packaged in various forms such as powders, solutions, sprays, and the like has reached voluminous proportions in the present day marketplace. And while these forms have achieved their purpose in affording the user many choices in his goal to clean various surfaces, their very popularity has raised problems. Among these problems are those associated with inventorying, shipping, shelving and ultimately disposing of the containers in which these detergents are provided. The bulky nature of them as now dispensed seeks relief so that their valuable attributes can be retained and their demands upon space and cost to the manufacturer, the user and the ecosystem can be ameliorated.
It is an object of this invention to provide detergents in precursor form of relatively small size thus diminishing demand upon space.
It is a further object of this invention to provide a detergent in precursor form which is easily produced and readily handled.
Still another object of this invention is the provision of a detergent in precursor form which substantially alleviates the above mentioned problems of the detergent trade.
It is a still further object of this invention to provide a detergent in a form which is readily reconstituted with water to give a solution suitable for manifold cleaning purposes.
Another object of this invention is to provide a deter gent composition that is safe to substantially allsurfaces in high concentrations for short periods of time if applied directly to a surface moistened with water.
The foregoing objects and shortcomings of the present day detergent cleaner art in respect of facility, economy and compactness are satisfied through the instant invention which presents a pliant, self-sustaining film susceptible by dissolving in water of forming a highly effective detergent solution. The film of this invention occupies considerably less space than those forms of detergent commonly found in the trade. Also, since it is consumed through its dissolution in water, disposal of it is nil; thus entirely removing any concern for disposing of unwanted containers and their inherent effect upon the environment.
In accordance with the concept underlying this invention it has been found that a pliant, self-sustaining film offering all the requisites and desiderata of an effective detergent cleaner which is particularly effective for removing dirt, greases, fats, foods and similar oilbase soils when dissolved in water can be readily produced using agents known and recognized in the detergent field.
In practice a solution comprising water, a nonionic detergent of the class consisting of ethoxylated alkyl phenols, preferably an ethoxylated nonyl or octyl phenol containing from 9 to mols of ethylene oxide repeating units; a resin of the alkylene maleic anhydride type such as a methyl vinyl ether maleic anhydride copolymer or ethylene maleic anhydride copolymer, preferably the former; and a small amount of an alkaline agent such as an alkali hydroxide, preferaby sodium hydroxide is composed and briefly heated at elevated temperature, about F, for a short time period, about 30 minutes, during which interaction between the nonionic and the polymer occurs resulting in partial esterification of the carboxyl groups of the copolymer. The mixture is allowed to cool; then cast upon a suitable surface and allowed to dry either spontaneously or by supplying hot air to the exposed surface. Examples of surfaces which will release the film are glass, plastic treated surfaces such as polyethylene, polyvinyl chloride and Teflon.-The film prepared as just described can be of any desired thickness. It can be readily stripped from the receiving surface and cut to any desired dimension. For example, a film having a thickness of about 18 mils and an area of about 18 square inches when dissolved in one gallon of water provides an effective detergent solution.
More specifically illustrative of a composition from which a film of this invention is produced is the following embodiment:
Ingredient Parts Water 83 Ethoxylated Nonyl Phenol ()l() mols ethylene l0 oxide) Methyl vinyl ether maleic anhydride copolymer 4 Sodium hydroxide solution (20% w/w) 3 strate and permitted to spontaneously lose water by evaporation to the atmosphere whereby a pliant, nontacky, self-sustaining film having a residual water content of about 2% by weight results. A segment of this film readily dissolves in lukewarm water to yield an effective detergent solution.
What is claimed is:
l. A pliant, non-tacky, self-sustaining film having a water content of about 2% by weight and formed by casting upon a receptive surface to permit evaporation of water from a solution consisting of about 83 parts of water, 10 parts of an ethoxylated nonyl phenol having from 9l() mols. of ethylene oxide, 4 parts of methyl vinyl ether maleic anhydride copolymer, and about 3 parts of a 20% w/w sodium hydroxide solution; said solution being heated to about 195F. for about thirty minutes, then cooled to the point of clarity at which the pH is about 4.0-4.4.
Claims (1)
1. A PLIANT, NON-TACKY, SELF-SUSTAINING FILM HAVING A WATER CONTENT OF ABOUT 2% BY WEIGHT AND FORMED BY CASTING UPON A RECEPTIVE SURFACE TO PERMIT EVAPORATION OF WATER, FORM A SOLUTION CONSISTING OF ABOUT 83 PARTS OF WATER, 10 PARTS OF AN ETHOXYLATED NONYL PHENOL HAVING FROM 9-10 MOLS OF ETHYLENE OXIDE, 4 PARTS OF METHYL VINYL ETHER MALEIC ANTHYDRIDE COPOLYMER, AND ABOUT 3 PARTS OF A 20% W/W SODIUM HYDROXIDE SOLUTION, SAID SOLUTION BEING HEATED TO ABOUT 195*F FOR ABOUT THIRTY MINUTES, THEN COOLED TO THE POINT OF CLARITY AT WHICH THE PH IS ABOUT 4.0-4.4.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US386343A US3904543A (en) | 1973-08-07 | 1973-08-07 | Detergent film |
| GB2913174A GB1437855A (en) | 1973-08-07 | 1974-07-01 | Detergent film |
| JP49075474A JPS5747239B2 (en) | 1973-08-07 | 1974-07-03 | |
| FR7427310A FR2240286B1 (en) | 1973-08-07 | 1974-08-06 | |
| CA206,384A CA1033257A (en) | 1973-08-07 | 1974-08-06 | Detergent film |
| DE2438052A DE2438052A1 (en) | 1973-08-07 | 1974-08-07 | FLEXIBLE, SELF-SUPPORTING FILM FOR THE PRODUCTION OF DETERGENT SOLUTIONS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US386343A US3904543A (en) | 1973-08-07 | 1973-08-07 | Detergent film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3904543A true US3904543A (en) | 1975-09-09 |
Family
ID=23525200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US386343A Expired - Lifetime US3904543A (en) | 1973-08-07 | 1973-08-07 | Detergent film |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3904543A (en) |
| JP (1) | JPS5747239B2 (en) |
| CA (1) | CA1033257A (en) |
| DE (1) | DE2438052A1 (en) |
| FR (1) | FR2240286B1 (en) |
| GB (1) | GB1437855A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532063A (en) * | 1983-08-15 | 1985-07-30 | S. C. Johnson & Son, Inc. | Dissolvable bleach sheet |
| US4557852A (en) * | 1984-04-09 | 1985-12-10 | S. C. Johnson & Son, Inc. | Polymer sheet for delivering laundry care additive and laundry care product formed from same |
| US4797221A (en) * | 1985-09-12 | 1989-01-10 | S. C. Johnson & Son, Inc. | Polymer sheet for delivering laundry care additive and laundry care product formed from same |
| US20060127458A1 (en) * | 2004-12-15 | 2006-06-15 | Melba Kiser | Single use personal care sheet |
| WO2007034471A3 (en) * | 2005-09-26 | 2007-05-31 | Samuel Icht | Detergent printed film |
| EP2226379A1 (en) * | 2009-03-02 | 2010-09-08 | Dizolve Group Corporation | Dissolvable laundry detergent sheet |
| US8785361B2 (en) | 2010-07-02 | 2014-07-22 | The Procter & Gamble Company | Detergent product and method for making same |
| US9074305B2 (en) | 2010-07-02 | 2015-07-07 | The Procter & Gamble Company | Method for delivering an active agent |
| US9163205B2 (en) | 2010-07-02 | 2015-10-20 | The Procter & Gamble Company | Process for making films from nonwoven webs |
| US9464264B2 (en) | 2014-02-06 | 2016-10-11 | Dizolve Group Corp. | Method and apparatus for making a laundry detergent sheet |
| US11021812B2 (en) | 2010-07-02 | 2021-06-01 | The Procter & Gamble Company | Filaments comprising an ingestible active agent nonwoven webs and methods for making same |
| US11434586B2 (en) | 2010-07-02 | 2022-09-06 | The Procter & Gamble Company | Filaments comprising an active agent nonwoven webs and methods for making same |
| US11679066B2 (en) | 2019-06-28 | 2023-06-20 | The Procter & Gamble Company | Dissolvable solid fibrous articles containing anionic surfactants |
| US11795417B2 (en) | 2020-02-24 | 2023-10-24 | Dizolve Group Corporation | Dissolvable sheet containing a cleaning active and method of making same |
| US11925698B2 (en) | 2020-07-31 | 2024-03-12 | The Procter & Gamble Company | Water-soluble fibrous pouch containing prills for hair care |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2925915C2 (en) * | 1979-06-27 | 1982-04-15 | Lee, Yong Hwa, 4000 Düsseldorf | Process for the production of thin, film-like foam soap ribbons and arrangement and devices for carrying out the process |
| GB2164339A (en) * | 1984-09-11 | 1986-03-19 | Ciba Geigy Ag | Polymaleic anhydride derivatives |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US261897A (en) * | 1882-08-01 | Josef bankmann | ||
| US1648778A (en) * | 1922-08-14 | 1927-11-08 | David W Mitchell | Book soap |
| US2356168A (en) * | 1941-08-16 | 1944-08-22 | Clarence W Mabley | Soap leaf |
| US3328309A (en) * | 1963-10-21 | 1967-06-27 | Gen Aniline & Film Corp | Stabilized liquid heavy duty detergent composition |
| US3359206A (en) * | 1964-05-21 | 1967-12-19 | Koppers Co Inc | Floating soap |
| US3457176A (en) * | 1964-10-16 | 1969-07-22 | Monsanto Co | Liquid detergent processes |
| US3591508A (en) * | 1967-12-07 | 1971-07-06 | Monsanto Co | Process for making heavy duty liquid detergent compositions |
| US3679592A (en) * | 1970-08-17 | 1972-07-25 | Monsanto Co | Cleansing and soil preventive composition |
| US3729421A (en) * | 1970-08-04 | 1973-04-24 | C Gibson | Soap cone and holder |
-
1973
- 1973-08-07 US US386343A patent/US3904543A/en not_active Expired - Lifetime
-
1974
- 1974-07-01 GB GB2913174A patent/GB1437855A/en not_active Expired
- 1974-07-03 JP JP49075474A patent/JPS5747239B2/ja not_active Expired
- 1974-08-06 FR FR7427310A patent/FR2240286B1/fr not_active Expired
- 1974-08-06 CA CA206,384A patent/CA1033257A/en not_active Expired
- 1974-08-07 DE DE2438052A patent/DE2438052A1/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US261897A (en) * | 1882-08-01 | Josef bankmann | ||
| US1648778A (en) * | 1922-08-14 | 1927-11-08 | David W Mitchell | Book soap |
| US2356168A (en) * | 1941-08-16 | 1944-08-22 | Clarence W Mabley | Soap leaf |
| US3328309A (en) * | 1963-10-21 | 1967-06-27 | Gen Aniline & Film Corp | Stabilized liquid heavy duty detergent composition |
| US3359206A (en) * | 1964-05-21 | 1967-12-19 | Koppers Co Inc | Floating soap |
| US3457176A (en) * | 1964-10-16 | 1969-07-22 | Monsanto Co | Liquid detergent processes |
| US3591508A (en) * | 1967-12-07 | 1971-07-06 | Monsanto Co | Process for making heavy duty liquid detergent compositions |
| US3729421A (en) * | 1970-08-04 | 1973-04-24 | C Gibson | Soap cone and holder |
| US3679592A (en) * | 1970-08-17 | 1972-07-25 | Monsanto Co | Cleansing and soil preventive composition |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532063A (en) * | 1983-08-15 | 1985-07-30 | S. C. Johnson & Son, Inc. | Dissolvable bleach sheet |
| US4557852A (en) * | 1984-04-09 | 1985-12-10 | S. C. Johnson & Son, Inc. | Polymer sheet for delivering laundry care additive and laundry care product formed from same |
| US4797221A (en) * | 1985-09-12 | 1989-01-10 | S. C. Johnson & Son, Inc. | Polymer sheet for delivering laundry care additive and laundry care product formed from same |
| US20060127458A1 (en) * | 2004-12-15 | 2006-06-15 | Melba Kiser | Single use personal care sheet |
| WO2007034471A3 (en) * | 2005-09-26 | 2007-05-31 | Samuel Icht | Detergent printed film |
| US20080242572A1 (en) * | 2005-09-26 | 2008-10-02 | Samuel Icht | Detergent Printed Film |
| EP2226379A1 (en) * | 2009-03-02 | 2010-09-08 | Dizolve Group Corporation | Dissolvable laundry detergent sheet |
| US9175250B2 (en) | 2010-07-02 | 2015-11-03 | The Procter & Gamble Company | Fibrous structure and method for making same |
| US10894005B2 (en) | 2010-07-02 | 2021-01-19 | The Procter & Gamble Company | Detergent product and method for making same |
| US9163205B2 (en) | 2010-07-02 | 2015-10-20 | The Procter & Gamble Company | Process for making films from nonwoven webs |
| US8785361B2 (en) | 2010-07-02 | 2014-07-22 | The Procter & Gamble Company | Detergent product and method for making same |
| US9421153B2 (en) | 2010-07-02 | 2016-08-23 | The Procter & Gamble Company | Detergent product and method for making same |
| US11944696B2 (en) | 2010-07-02 | 2024-04-02 | The Procter & Gamble Company | Detergent product and method for making same |
| US11944693B2 (en) | 2010-07-02 | 2024-04-02 | The Procter & Gamble Company | Method for delivering an active agent |
| US9074305B2 (en) | 2010-07-02 | 2015-07-07 | The Procter & Gamble Company | Method for delivering an active agent |
| US11021812B2 (en) | 2010-07-02 | 2021-06-01 | The Procter & Gamble Company | Filaments comprising an ingestible active agent nonwoven webs and methods for making same |
| US11434586B2 (en) | 2010-07-02 | 2022-09-06 | The Procter & Gamble Company | Filaments comprising an active agent nonwoven webs and methods for making same |
| US10639825B2 (en) | 2014-02-06 | 2020-05-05 | Dizolve Group Corporation | Method and apparatus for making a laundry detergent sheet |
| US9464264B2 (en) | 2014-02-06 | 2016-10-11 | Dizolve Group Corp. | Method and apparatus for making a laundry detergent sheet |
| US11679066B2 (en) | 2019-06-28 | 2023-06-20 | The Procter & Gamble Company | Dissolvable solid fibrous articles containing anionic surfactants |
| US11795417B2 (en) | 2020-02-24 | 2023-10-24 | Dizolve Group Corporation | Dissolvable sheet containing a cleaning active and method of making same |
| US11925698B2 (en) | 2020-07-31 | 2024-03-12 | The Procter & Gamble Company | Water-soluble fibrous pouch containing prills for hair care |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2438052A1 (en) | 1975-02-20 |
| JPS5039708A (en) | 1975-04-12 |
| CA1033257A (en) | 1978-06-20 |
| GB1437855A (en) | 1976-06-03 |
| FR2240286B1 (en) | 1978-02-17 |
| JPS5747239B2 (en) | 1982-10-07 |
| FR2240286A1 (en) | 1975-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: DOW CHEMICAL COMPANY, THE MIDLAND MICHIGAN 48640 A Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MORTON THIOKOL INC;REEL/FRAME:004354/0531 |
|
| AS | Assignment |
Owner name: DOWBRANDS INC., INDIANA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DOW CHEMICAL COMPANY, THE;REEL/FRAME:005755/0625 Effective date: 19910619 |