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EP0142830A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Composition reducing sebum spreading

Assignee: Richardson Vicks Inc
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Filing: 1984-11-15
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Granted: —
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Expires: 2004-11-15
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Abstract

Abstract A Composition for treating human skin, having applicability to oily skin and acne in order to improve the condition thereof by reducing the spreadability of sebum on the skin surface, the invention involving the application to human skin so characterized of a composition comprising, as an active component to reduce the spreadability of sebum, an effective amount of a straight chain dimethyl silicone polymer having a molecular weight of about 50,000 or more and a viscosity of about 10,000 centistokes or more.

Inventors

  • 👤 Rodger Evan Bogardus
  • 👤 Jon Durell Packer
  • 👤 James Peter Sanogueira

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 03:18
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/10; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/891; A61P; A61P17/00; A61Q19/008

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 59 words
A composition having sebum spreading reducing effectivity on the skin surface comprising, as an active component to reduce sebum spreading, an effective amount of a dimethyl silicone polymer having the formula: wherein n is a positive integer sufficient to provide a silicone polymer having a molecular weight of 50,000 or more and a viscosity of 10,000 centistokes or more.
Claim 2
Dependent Claim 59 words
A composition having sebum spreading reducing effectivity on the skin surface comprising, as an active component to reduce sebum spreading, an effective amount of a dimethyl silicone polymer having the formula: wherein n is a positive integer sufficient to provide a silicone polymer having a molecular weight of 50,000 or more and a viscosity of 10,000 centistokes or more.
Claim 3
Dependent Claim 16 words
The composition of claim 1 wherein the polymer has a viscosity of more than 100,000 centistokes
Claim 6
Dependent Claim 35 words
The composition of any of claims 1 and 2 wherein the skin is characterized by an excessive secretion of sebum and the active component is in a non-toxic cosmetic carrier suitable for topical skin application.
Claim 7
Dependent Claim 26 words
The composition of any of claims 1 and 2 wherein the skin is characterized by acne and the active component is in a topical anti-acne composition.
Claim 8
Dependent Claim 35 words
The composition of any of claims 3 and 4 wherein the amount of dimethyl silicone polymer in said composition is in the range of from about 1 to about 90% by weight of the composition.
Claim 9
Dependent Claim 35 words
The composition of any of claims 3 and 4 wherein the amount of dimethyl silicone polymer in said composition is in the range of from about 3 to about 15% by weight of the composition.
Claim 10
Dependent Claim 16 words
The composition of claim 1 wherein the dimethyl silicone polymer is solubilized in a cyclodimethicone oligmer.
Claim 11
Dependent Claim 25 words
The composition of claim 7 wherein the dimethyl silicone polymer is solubilized in a solubilzing agent which is a mixture of cyclodimethicone tetramer and pentamer.
Claim 12
Dependent Claim 18 words
The composition of claim 8 wherein the solubilizing agent is a 90:10 w/w mixture of tetramer and pentamer.
Claim 13
Dependent Claim 27 words
The composition of claim 9 wherein the dimethyl silicone polymer has a molecular weight of about 330,000 in a 12.5% by weight solution of the solubilizing agent.
Claim 14
Dependent Claim 16 words
The composition of claim 2 wherein the dimethyl silicone polymer is solubilized in a cyclodimethicone oligmer.
Claim 15
Dependent Claim 27 words
The composition of claim 11 wherein the dimethyl sili - cone polymer is solubilized in a solubilizing agent which is a mixture of cyclodimethicone tetramer and pentamer.
Claim 16
Dependent Claim 18 words
The composition of claim 12 wherein the solubilizing agent is a 90:10 w/w mixture of tetramer and pentamer.
Claim 17
Dependent Claim 398 words
A topical anti-acne composition, the improvement characterized by the presence in said anti-acne composition of a sebum spreading reducing effective amount of a dimethyl silicone polymer of the formula: wherein n is a positive integer sufficient to provide a silicone polymer having a molecular weight of 50,000 or more and a viscosity of 10,000 centistokes (mm 2 /s) or more. The anti-acne composition of claim 14 wherein the viscosity of the dimethyl silicone polymer is more than 100,000 centistokes.(mm2/s) The anti-acne composition of claim 15 wherein the dimethyl silicone polymer is present in the composition in an amount of from about 3% to about 15% by weight of the composition. The anti-acne composition of claim 15 wherein the dimethyl silicone polymer is solubilized in a solubilizing agent which is a 90:10 w/w mixture of cyclodimethicone tetramer and pentamer and the dimethyl silicone polymer has a molecular weight of about 330,000 in a 12.5% by weight solution of the solubilizing agent. A topical cosmetic composition-comprising a anhydrous non-toxic cosmetic carrier suitable for topical application to skin characterized by excessive secretion of sebum, the improvement characterized by the presence in said cosmetic composition as an active component to reduce sebum spreading, a sebum spreading reducing effective amount of a dimethyl silicone polymer of the formula wherein n is a positive integer sufficient to provide a polymer having a molecular weight of 50,000 or more and a viscosity of 10,000 centistokes (mm 2 /s) or more. The cosmetic composition of claim 18 wherein the viscosity of the dimethyl silicone polymer is more than 100,000 centistokes (mm 2 /s). The cosmetic composition of claim 19 wherein the dimethyl silicone polymer is present in the composition in an amount of from about 3 to about 15% by weight. The cosmetic composition of claim 18 wherein the dimethyl silicone polymer is solubilized in a solubilizing agent which is a 90:10 w/w mixture of cyclodimethicone tetramer and pentamer and the dimethyl silicone polymer has a molecular weight of about 330,000 in a 12.5% by weight solution of the solubilizing agent. Use of a dimethyl silicone polymer having the formula: wherein n is a positive integer sufficient to provide a silicone polymer having a molecular weight of 50,000 or more and a viscosity of 10,000 centistokes (mm l /s) or more for the preparation of topical anti-acne or cosmetic compositions having a sebum spreading reducing effectivity.

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