Patent US5262176A successfully refreshed from Google Patents.
Patent US4528283A successfully refreshed from Google Patents.
US4528283A
Expired / Lapsed
US
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Cosmetic composition based upon chitosan derivatives, new chitosan derivatives as well as processes for the production thereof
Assignee: Procter and Gamble Deutschland GmbH
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Filing: 1983-06-23
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Granted: 1985-07-09
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Expires: 2003-06-23
Abstract
Abstract Cosmetic compositions useful for treatment of hair or skin contain macromolecular glyceryl-chitosan having (a) 4-40 Mol-% units of the Formula (I) ##STR1## and (b) 60-96 Mol-% units of the Formula (II) ##STR2## wherein R 1 , R 2 and R 3 are the same or different and are ##STR3## wherein R 4 and R 5 are the same or different and are ##STR4## wherein either X=H and Y=CH 2 OH, or Y=H and X=CH 2 OH and n=2 to 5, with the proviso that for at least half of the units of the formula II, R 1 , R 2 and R 3 are not uniformly H, or their salts with organic or inorganic acids, in a suitable cosmetic carrier. Also disclosed are the compounds per se and a process for their production wherein chitosan composed of 60-96% entacetylated chitin is reacted with glycidol.
Inventors
- 👤 Gunther Lang
- 👤 Harald Wendel
- 👤 Eugen Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:20
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0027; C08B37/003; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/736; A61Q; A61Q5/00; A61Q5/04; A61Q5/06; A61Q5/065; A61Q5/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
131 words
Cosmetic composition useful for the treatment of hair or skin, comprising as active agent glyceryl-chitosan composed of macromolecular compounds derived from chitosan and having (a) 4-40 Mol-% units of the Formula (I) ##STR13## and (b) 60-96 Mol-% units of the Formula (II) ##STR14## wherein R 1 , R 2 and R 3 are the same or different and are ##STR15## wherein R 4 and R 5 are the same or different and are ##STR16## wherein either X=H and Y=CH 2 OH, or Y=H and X=CH 2 OH and n=2 to 5, with the proviso that for at least half of the units of the formula II, R 1 , R 2 and R 3 are not uniformly H, or their salts with organic or inorganic acids, in a suitable cosmetic carrier.
Claim 2
Dependent Claim
131 words
Cosmetic composition useful for the treatment of hair or skin, comprising as active agent glyceryl-chitosan composed of macromolecular compounds derived from chitosan and having (a) 4-40 Mol-% units of the Formula (I) ##STR13## and (b) 60-96 Mol-% units of the Formula (II) ##STR14## wherein R 1 , R 2 and R 3 are the same or different and are ##STR15## wherein R 4 and R 5 are the same or different and are ##STR16## wherein either X=H and Y=CH 2 OH, or Y=H and X=CH 2 OH and n=2 to 5, with the proviso that for at least half of the units of the formula II, R 1 , R 2 and R 3 are not uniformly H, or their salts with organic or inorganic acids, in a suitable cosmetic carrier.
Claim 3
Dependent Claim
19 words
Composition according to claim 1, wherein said glyceryl-chitosan is present in amounts from 0.05 up to 10% by weight.
Claim 4
Dependent Claim
11 words
Composition according to claim 1, for use as a hair wash.
Claim 5
Dependent Claim
11 words
Composition according to claim 1, further comprising an anionic surface-active substance.
Claim 6
Dependent Claim
14 words
Composition according to claim 4, wherein said anionic surface-active substance is an alkylether sulfate.
Claim 7
Dependent Claim
10 words
Composition according to claim 1, comprising a hair setting preparation.
Claim 8
Dependent Claim
9 words
Composition according to claim 1, further comprising hair dye.
Claim 9
Dependent Claim
22 words
Composition according to claim 7, wherein said hair dye is present in an amount from about 0.01 up to 2.0% by weight.
Claim 10
Dependent Claim
18 words
Composition according to claim 1, further comprising perfume, preservative, thickener, foam stabilizer, buffer substance, cosmetic resin or pigment.
Claim 11
Dependent Claim
16 words
Composition according to claim 1, further comprising reducing agent, oxidation agent, alkalization agent or peroxide stabilizer.
Claim 12
Dependent Claim
105 words
Macromolecular compound derived from chitosan, comprising (a) 4-40 Mol-% units of the formula (I) ##STR17## and (b) 60-96 Mol-% units of the formula (II) ##STR18## wherein R 1 , R 2 and R 3 are the same or different and are ##STR19## wherein R 4 and R 5 are the same or different and are ##STR20## wherein either X=H and Y=CH 2 OH, or Y=H and X=CH 2 OH and n=2 to 5, with the proviso that for at least half of the units of the formula II, R 2 and R 3 are not uniformly H, or its salt with organic or inorganic acid.
Claim 13
Dependent Claim
105 words
Macromolecular compound derived from chitosan, comprising (a) 4-40 Mol-% units of the formula (I) ##STR17## and (b) 60-96 Mol-% units of the formula (II) ##STR18## wherein R 1 , R 2 and R 3 are the same or different and are ##STR19## wherein R 4 and R 5 are the same or different and are ##STR20## wherein either X=H and Y=CH 2 OH, or Y=H and X=CH 2 OH and n=2 to 5, with the proviso that for at least half of the units of the formula II, R 2 and R 3 are not uniformly H, or its salt with organic or inorganic acid.
Claim 14
Dependent Claim
68 words
Process for the production of compounds according to claim 11, comprising reacting chitosan with glycidol at a temperature between 10° and 100° C. for 2 to 100 hours with stirring, wherein said chitosan is provided in finely pulverized form, composed of chitin entacetylated to 60-96%, and the ratio of chitosan to glycidol, relative to the mols of substitutable amino groups in the chitosan, lies between 1:0.5 and 1:30.
Claim 15
Dependent Claim
15 words
Process according to claim 12, wherein said reacting is performed in the presence of water.
Claim 16
Dependent Claim
20 words
Process according to claim 12, further comprising before said reacting, initially structurally modifying said chitosan through reprecipitation and deep freezing.
Claim 17
Dependent Claim
33 words
Method of strengthening hair, comprising distributing an amount sufficient for strengthening the hair of the composition according to claim 1 onto the washed, towel-dried hair, setting the hair and then drying the hair.
Claim 18
Dependent Claim
33 words
Method of treating hair, comprising distributing onto washed hair an effective amount of the composition according to claim 1, allowing said composition to work itself in, and then rinsing the hair with water.
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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) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |