US4369037A
Expired / Lapsed
US
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Hair treatment cosmetics containing cationic keratin derivatives
Assignee: KOA SOAP Co Ltd
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Filing: 1981-11-05
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Granted: 1983-01-18
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Expires: 2001-11-05
Abstract
Abstract Cationic keratin derivatives which are obtained by reacting a part or whole of functional groups of keratin with a cationizing agent which contains in the molecule thereof a specific type of a group or groups and a quaternary nitrogen atom. The process for preparing such derivatives and a variety of cosmetics containing the same are also described.
Inventors
- 👤 Kinjiro Matsunaga
- 👤 Takeo Okumura
- 👤 Rikio Tsushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:29
CPC Classifications
C; C08; C08H; C08H1/00; C08H1/06; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/64; A61K8/65; A61Q; A61Q5/00; A61Q5/12; C07; C07K; C07K14/00; C07K14/435; C07K14/46; C07K14/47; C07K14/4701; C07K14/4741; A61K38/00; A61Q5/02; A61Q5/04; A61Q5/06; A61Q5/065; A61Q5/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
50 words
A cationic keratin derivative which is obtained by reacting a part or whole of functional groups of keratin with a cationizing agent which contains in its molecule a group or groups of the formula ##STR20## or CH 2 ═CH-- wherein X represents a halogen atom, and a quaternary nitrogen atom.
Claim 2
Dependent Claim
50 words
A cationic keratin derivative which is obtained by reacting a part or whole of functional groups of keratin with a cationizing agent which contains in its molecule a group or groups of the formula ##STR20## or CH 2 ═CH-- wherein X represents a halogen atom, and a quaternary nitrogen atom.
Claim 3
Dependent Claim
56 words
A cationic keratin derivative according to claim 1, wherein the part or whole of functional groups of keratin is modified with a cationic group of the following formula ##STR21## wherein each R represents a lower alkyl group or an aryl group, X represents a halogen atom, and A represents a hydrogen atom or a hydroxyl group.
Claim 4
Dependent Claim
18 words
A cationic keratin derivative according to claim 2, wherein said cationic group is β-hydroxy-γ-trimethylammoniopropyl group or γ-trimethylammoniopropyl group.
Claim 5
Dependent Claim
82 words
A process for preparing cationic keratin derivative which comprises the steps of treating a keratin material or its hydrolyzed product with a reducing agent in water or in a mixture of water and a hydrophilic organic solvent to convert difulfide bonds in the keratin material into sulfhydryl groups, and reacting a ationizing agent containing in its molecule both a group or groups of the following formulas ##STR22## and CH 2 ═CH-- wherein X is a halogen atom, and a quaternary nitrogen atom.
Claim 6
Dependent Claim
82 words
A process for preparing cationic keratin derivative which comprises the steps of treating a keratin material or its hydrolyzed product with a reducing agent in water or in a mixture of water and a hydrophilic organic solvent to convert difulfide bonds in the keratin material into sulfhydryl groups, and reacting a ationizing agent containing in its molecule both a group or groups of the following formulas ##STR22## and CH 2 ═CH-- wherein X is a halogen atom, and a quaternary nitrogen atom.
Claim 7
Dependent Claim
48 words
A process according to claim 4, wherein the amount of said reducing agent is in the range of from 2 to 10 times in equivalent of disulfide bonds of the keratin material and the pH of the reaction system is in the range of from 2 to 12.
Claim 8
Dependent Claim
33 words
A process according to claim 4, wherein the amount of the cationizing agent is in the range of 0.1 to 6 times in equivalent of sulfhydryl groups present in the reduction decomposition product.
Claim 9
Dependent Claim
11 words
A hair treating cosmetic composition comprising the derivative of claim 1.
Claim 10
Dependent Claim
25 words
A hair treating cosmetic composition according to claim 7, wherein the amount of the derivative is from 0.01 to 10% by weight of the composition.
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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) | 1986-01-17 | 1986-07-19 | 1987-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-17 | 1990-07-19 | 1991-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-17 | 1994-07-19 | 1995-01-18 | $7700.00 | Window Closed / Lapsed |