US4780145A
Expired / Lapsed
US
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Gel composition comprising cyclic dimethyl polysiloxanes
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1987-12-22
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Granted: 1988-10-25
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Expires: 2007-12-22
Abstract
Abstract A gel composition which comprises a specific type of cyclic dimethyl polysiloxane, an animal or plant oil or vaseline, and an ester of dextrin with a fatty acid having from 8 to 20 carbon atoms. The cyclic dimethyl polysiloxane is methyl-substituted cyclotetrasiloxane, cyclopentasiloxane or cyclohexasiloxane. The use of this type of cyclosiloxane contributes to impart good spreadability on the skin to the composition.
Inventors
- 👤 Shigeru Mori
- 👤 Satoshi Kuwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:01
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61K47/00; A61K47/06; A61K47/24; A61K47/30; A61K47/36; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K8/18; A61K8/30; A61K8/31; A61K8/58; A61K8/585; A61K8/72; A61K8/73; A61K8/732; A61K8/92; A61K8/922; A61K8/927; A61Q; A61Q19/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
150 words
A gel composition which comprises the following ingredients (A), (B) and (C): (A) from 90 to 30 parts by weight of a cyclic dimethyl polysiloxane of the following general formula ##STR4## wherein n is an integer of from 4 to 6; (B) from 5 to 50 parts by weight of at least one member selected from the group consisting of animal and plant oils and vaseline; and (C) from 5 to 30 parts by weight of an ester of dextrin and a fatty acid of the following general formula ##STR5## in which each R represents a hydrogen atom or an acyl group having from 8 to 20 carbon atoms provided that at least one R per glucose unit is an acyl group, and m is an integer of from 20 to 30, the total amount of the ingredients (A), (B) and (C) in the composition being 100 parts by weight.
Claim 2
Dependent Claim
150 words
A gel composition which comprises the following ingredients (A), (B) and (C): (A) from 90 to 30 parts by weight of a cyclic dimethyl polysiloxane of the following general formula ##STR4## wherein n is an integer of from 4 to 6; (B) from 5 to 50 parts by weight of at least one member selected from the group consisting of animal and plant oils and vaseline; and (C) from 5 to 30 parts by weight of an ester of dextrin and a fatty acid of the following general formula ##STR5## in which each R represents a hydrogen atom or an acyl group having from 8 to 20 carbon atoms provided that at least one R per glucose unit is an acyl group, and m is an integer of from 20 to 30, the total amount of the ingredients (A), (B) and (C) in the composition being 100 parts by weight.
Claim 3
Dependent Claim
13 words
A gel composition according to claim 1, wherein the ingredient (A) is octamethylcyclotetrasiloxane.
Claim 4
Dependent Claim
13 words
A gel composition according to claim 1, wherein the ingredient (A) is decamethylcyclopentasiloxane.
Claim 5
Dependent Claim
13 words
A gel composition according to claim 1, wherein the ingredient (A) is dodecamethylcyclohexasiloxane.
Claim 6
Dependent Claim
23 words
A gel composition according to claim 1, wherein the ingredient (A) is a mixture of at least two of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane.
Claim 7
Dependent Claim
30 words
A gel composition according to claim 1, wherein the ingredient (A) is used in an amount of from 85 to 40 parts by weight per 100 parts of the composition.
Claim 8
Dependent Claim
30 words
A gel composition according to claim 1, wherein the ingredient (B) is used in an amount of from 7 to 45 parts by weight per 100 parts of the composition.
Claim 9
Dependent Claim
28 words
A gel composition according to claim 1, wherein the ingredient (C) is a partial ester of dextrin and a fatty acid having from 8 to 20 carbon atoms.
Claim 10
Dependent Claim
32 words
A gel composition according to claim 1, wherein the ingredient (C) is used in an amount of from 7 to 25 parts by weight per 100 parts by weight of the composition.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1991-10-25 | 1992-04-25 | 1992-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-25 | 1996-04-25 | 1996-10-25 | $3760.00 | Window Closed / Lapsed |
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