Patent US5064555A successfully refreshed from Google Patents.
US5064555A
Expired / Lapsed
US
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Mild skin cleansing soap bar with hydrated cationic polymer skin conditioner
Assignee: Procter and Gamble Co
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Filing: 1989-04-05
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Granted: 1991-11-12
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Expires: 2009-04-05
Abstract
Abstract Disclosed is a mild skin cleansing soap bar composition comprising: (1) 50-90% soap, and (2) a hydrated cationic polymeric skin conditioner. The physical composition of the bar is such that the hydrated polymer is substantially uniformly distributed and well incorporated in the soap. The hydrated cationic polymer improves the mildness of the soap bar to a level approaching that of bars made with very mild synthetic surfactants, while maintaining the desirable physical characteristics of a pure soap bar without the polymer. The preferred polymer is a hydrated cationic guar gum having a typical aqueous viscosity at 1% of from about 125 cps to about 3500+/-500 cps.
Inventors
- 👤 Ralph F. Medcalf, Jr.
- 👤 Martha O. Visscher
- 👤 John R. Knochel
- 👤 Richard M. Dahlgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:15
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0047; C11D17/006; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/731; A61K8/737; A61Q; A61Q19/00; A61Q19/10; C11D10/00; C11D10/04; C11D10/042; C11D9/00; C11D9/04; C11D9/22; C11D9/225; A61K2800/00; A61K2800/40; A61K2800/54; A61K2800/542; A61K2800/5426; A61K2800/59; A61K2800/594; C11D1/00; C11D1/02; C11D1/04; C11D1/10; C11D1/12; C11D1/123; C11D1/126; C11D1/16; C11D1/28; C11D1/29; C11D1/32; C11D1/34; C11D1/345; C11D1/66; C11D1/662; C11D1/75; C11D1/88; C11D1/90; C11D1/92
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
174 words
A mild soap bar composition comprising: (1) 50-90% soap; and (2) and effective amount of a hydrated cationic polymeric skin conditioner uniformly distributed and incorporated in said soap bar, said cationic polymeric skin conditioner having a molecular weight of from 1000 to 3,000,000, said cationic polymeric skin conditioner comprising from about 0.2% to about 5% of a hydrated cationic guar gum having a 1-2% aqueous solution viscosity of from about 125 cps to about 3500±500 cps at 25° C., wherein said aqueous solution has a pH of about 9 to 11, and from 0% to about 5% of another cationic polymeric skin conditioner selected from the group consisting of: (I) other cationic polysaccharides; (II) cationic copolymers of saccharides and synthetic cationic monomers, and (III) synthetic polymers selected from the group consisting of: (A) cationic polyakylene imines, (B) cationic ethoxypolyalkylene imines, and (C) cationic poly(N-(3-(dimethylammonio)propyl)-N'-(3-(ethyleneoxyethylene dimethylammonio)propyl)urea dichloride); and (IV) mixtures thereof; and wherein said bar is substantially free of unhydrated polymeric particles greater than 30 microns; and (3) from about 7% to about 25% moisture.
Claim 2
Dependent Claim
174 words
A mild soap bar composition comprising: (1) 50-90% soap; and (2) and effective amount of a hydrated cationic polymeric skin conditioner uniformly distributed and incorporated in said soap bar, said cationic polymeric skin conditioner having a molecular weight of from 1000 to 3,000,000, said cationic polymeric skin conditioner comprising from about 0.2% to about 5% of a hydrated cationic guar gum having a 1-2% aqueous solution viscosity of from about 125 cps to about 3500±500 cps at 25° C., wherein said aqueous solution has a pH of about 9 to 11, and from 0% to about 5% of another cationic polymeric skin conditioner selected from the group consisting of: (I) other cationic polysaccharides; (II) cationic copolymers of saccharides and synthetic cationic monomers, and (III) synthetic polymers selected from the group consisting of: (A) cationic polyakylene imines, (B) cationic ethoxypolyalkylene imines, and (C) cationic poly(N-(3-(dimethylammonio)propyl)-N'-(3-(ethyleneoxyethylene dimethylammonio)propyl)urea dichloride); and (IV) mixtures thereof; and wherein said bar is substantially free of unhydrated polymeric particles greater than 30 microns; and (3) from about 7% to about 25% moisture.
Claim 3
Dependent Claim
72 words
The mild soap bar composition of claim 1 wherein said composition comprises: from about 50% to about 80% of surface active agent selected from soaps and mixtures of soap and synthetic surfactants wherein said soap is present at a level of at least 50% and said synthetic surfactant can be present up to a level of 20% by weight of said composition; and from about 0% to about 20% of a moisturizer.
Claim 4
Dependent Claim
27 words
The mild soap bar composition of claim 1 wherein said soap comprises fatty acid soaps having fatty acid carbon chain lengths of C 8 -C 22 .
Claim 5
Dependent Claim
17 words
The mild soap bar composition of claim 1 wherein said bar contains at least 25% tallow soap.
Claim 6
Dependent Claim
26 words
The mild soap bar composition of claim 1 wherein said soap is a mixture of tallow and coconut soaps having a ratio of 0.1:1 to 9:1.
Claim 7
Dependent Claim
15 words
The mild soap bar composition of claim 5 wherein said ratio is 1:1 to 1.5:1.
Claim 8
Dependent Claim
89 words
The mild soap bar composition of claim 1 wherein said composition contains from about 2% to about 20% of a synthetic surfactant selected from alkyl glyceryl ether sulfonates, anionic acyl sarcosinates, methyl acyl taurates, N-acyl glutamates, alkyl glucosides, acyl isethionates, alkyl sulfosuccinates, alkyl phosphate esters, ethoxylated alkyl phosphate esters, methyl glucose esters, protein condensates, mixtures of ethoxylated alkyl sulfates and alkyl amine oxides, betaines, sultaines, the alkyl ether sulfates with 1 to 12 ethoxy groups, and mixtures thereof, wherein said synthetic surfactants contain C 8 -C 22 alkyl chains.
Claim 9
Dependent Claim
23 words
The mild soap bar composition of claim 7 wherein said synthetic surfactant has an alkyl chain length of C 10 -C 18 .
Claim 10
Dependent Claim
25 words
The mild soap bar composition of claim 1 wherein said composition contains up to 20% of a C 10 -C 18 alkyl glyceryl ether sulfonate.
Claim 11
Dependent Claim
19 words
The mild soap bar composition of claim 1 wherein said composition contains from about 2% to about 17% moisturizer.
Claim 12
Dependent Claim
18 words
The mild soap bar composition of claim 1 wherein the other cationic polysaccharide polymer is cationic hydroxyethylcellulose polymer.
Claim 13
Dependent Claim
94 words
A method of making a mild soap bar in accordance with claim 1 comprising the steps of: (1) hydrating an effective amount of said cationic guar gum polymer with water, and (2) uniformly distributing and incorporating the hydrated cationic guar gum polymer into an aqueous soap mix whereby said hydrated cationic guar gum polymer is substantially uniformly distributed and incorporated in said aqueous soap mix, and (3) drying said uniform mix to a moisture level of from 7% to 25%, and (4) forming the dried product obtained by step (3) into a bar shape.
Claim 14
Dependent Claim
25 words
The method of making a mild soap bar in accordance with claim 12 wherein said cationic polymer is hydrated in a soap making crutcher step.
Claim 15
Dependent Claim
20 words
The method of claim 12 wherein said polymer is hydrated with water prior to mixing with said aqueous soap mix.
Claim 16
Dependent Claim
25 words
The method of claim 12 wherein said hydrated polymer is a free flowing liquid and is injected into a liquid soap stream prior to drying.
Claim 17
Dependent Claim
29 words
The method of claim 12 wherein said hydrated polymer is a cationic guar gum gel which is mixed in a soap crutcher step mixture containing 25% to 40% water.
Claim 18
Dependent Claim
16 words
The method of claim 12 wherein said bar has a moisture level of 7% to 15%.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |