Patent US2661928A successfully refreshed from Google Patents.
US4134412A
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Hair setting lotion containing a chitosan derivative
Assignee: Procter and Gamble Deutschland GmbH
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Filing: 1976-11-18
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Granted: 1979-01-16
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Expires: 1996-11-18
Abstract
Abstract Hair setting lotion consisting of an aqueous or aqueous-alcoholic solution of a film-forming resin which contains a water soluble salt of chitosan.
Inventors
- 👤 Paul Gross
- 👤 Eugen Konrad
- 👤 Herbert Mager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:57
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/06; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/736
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A process of setting the hair comprising applying to the hair a lotion wherein the active component is an aqueous or aqueous-alcoholic solution of a film-forming resin which resin contains 0.05 to 4% by weight of a water soluble salt of chitosan as the film-forming component, the said chitosan salt being obtained by reacting chitosan or a chitin product containing about 70-90% by weight of chitosan with a sufficient amount of an acid to neutralize the free amino groups present on chitosan and to form a water-soluble salt thereof.
Claim 2
Dependent Claim
89 words
A process of setting the hair comprising applying to the hair a lotion wherein the active component is an aqueous or aqueous-alcoholic solution of a film-forming resin which resin contains 0.05 to 4% by weight of a water soluble salt of chitosan as the film-forming component, the said chitosan salt being obtained by reacting chitosan or a chitin product containing about 70-90% by weight of chitosan with a sufficient amount of an acid to neutralize the free amino groups present on chitosan and to form a water-soluble salt thereof.
Claim 3
Dependent Claim
38 words
The process of claim 1 wherein the chitosan salt is a salt of hydrochloric acid, formic acid, acetic acid, lactic acid, glycolic acid, malonic acid, thioglycolic acid, benzoic acid, adipic acid, citric acid, benzenedisulfonic acid or chlorosulfonic acid.
Claim 4
Dependent Claim
19 words
The process of claim 1 which contains the chitosan salt in an amount of 0.5 to 1.5% by weight.
Claim 5
Dependent Claim
28 words
The process of claim 1 wherein the hair setting lotion includes a hair dye in an amount of about 0.05 to 2.0% by weight of the total composition.
Claim 6
Dependent Claim
66 words
A process of setting the hair as defined in claim 1 wherein the lotion is applied to the washed and towel-dry hair followed by an alkalizing aftertreatment with an aqueous or aqueous-alcoholic solution, emulsion or gel of a compound selected from the group consisting of ammonia, an organic amine, and a basic reacting salt, the hair being set and dried before or after the alkalizing treatment.
Claim 7
Dependent Claim
27 words
The process of claim 5 wherein the alkalizing agent is applied to the hair in form of a solution in an amount of 20 to 30 ml.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |