US4542014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair treating composition
Assignee: Gillette Co LLC
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Filing: 1982-12-03
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Granted: 1985-09-17
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Expires: 2002-12-03
Abstract
Abstract This invention deals with aqueous hair treating compositions utilizing adducts of (1) low molecular weight aminopolysaccharides derived from chitosan with (2) hydrolyzed keratin protein comprising mixtures of amino acids.
Inventors
- 👤 Ann F. Bresak
- 👤 Eva Tolgyesi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:31
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/736; A61K8/30; A61K8/64; A61K8/65; A61Q; A61Q5/00; A61Q5/02; A61Q5/06; A61Q5/12; C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0027; C08B37/003
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A hair-treating composition selected from the class consisting of hair setting, shampoo, and conditioning compositions comprising an aqueous solution containing from about 1 to about 10% by weight of an adduct of an oligomer of hydrolyzed chitosan and a mixture of amino acids obtained from the hydrolysis of a keratin raw material selected from the class consisting of human hair, animal hair, horn, and feathers and which has a weight average molecular weight of about 80 to 250 has been inserted in claim 9, line 9, said hydrolyzed chitosan being a mixture of glucosamine oligomers having the following structure: ##STR4## where n is an integer having the value of 1-10, the percentage by weight of the oligomer mixture in which n is 1, 2, or 3 is at least 70% and in which the percentage by weight of the oligomer in which n is greater than 6 is less than 25%, the proportion of hydrolyzed chitosan to amino acid mixture being from 3:1 to 1:3.
Claim 2
Dependent Claim
14 words
A hair-treating composition as described in claim 1 having a pH of about 2.5.
Claim 3
Dependent Claim
23 words
A hair-treating composition as described in claim 1 containing, in addition, from 2 to 20% by weight of a nonionic surface active agent.
Claim 4
Dependent Claim
21 words
A method for providing set holding and conditioning benefits to hair comprising the application of the composition described in claim 1.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-16 | 1989-03-18 | 1989-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-16 | 1993-03-18 | 1993-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-16 | 1997-03-18 | 1997-09-17 | $7700.00 | Window Closed / Lapsed |