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EP0076146A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Skin conditioning composition

Assignee: Procter and Gamble Co
•
Filing: 1982-09-28
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Granted: —
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Expires: 2002-09-28
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Abstract

Abstract Skin conditioning compositions are described which comprise an emulsion of a volatile, water-insoluble liquid; glycerin; a polydiorganosiloxane-polyoxyalkylene copolymer; a surfactant which will emulsify the above named water-insoluble components; and water.

Inventors

  • 👤 Thomas Jefferson Dixon
  • 👤 Gary Robert Kelm

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 10:23
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/891; A61K8/894; A61K8/30; A61K8/33; A61K8/34; A61K8/345; A61K8/58; A61K8/585; A61Q; A61Q19/00; C; C08; C08K; C08K5/00

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 249 words
A skin conditioning composition characterized by:- (a) from 5% to 30% glycerin; (b) from 0.5% to 10% of a volatile silicone or mixtures thereof selected from methylsiloxane fluids having the average unit formula wherein a has an average of from 2 to 3, inclusive; (c) from 0.05% to 1% of a polydiorganosiloxane- polyalkylene copolymer containing at least one polydiorganosiloxane segment and at least one polyoxyalkylene segment, said polydiorganosiloxane segment consisting essentially of siloxane units wherein b has a value of from 0 to 3, inclusive, there being an average value of approximately 2 R radicals per silicon for all siloxane units in the copolymer, and R denotes a radical selected from methyl, ethyl, vinyl, phenyl and a divalent radical bonding said polyoxyalkylene segment to the polydiorganosiloxane segment, at least 95% of all R radicals being methyl; and said polyoxyalkylene segment having an average molecular weight of at least 1000 and consisting of from 0 to 50 mol percent polyoxypropylene units and from 50 to 100 mol percent polyoxyethylene units, at least one terminal portion of said polyoxyalkylene segment being bonded to said polydiorganosiloxane segment, any terminal portion of said polyoxyalkylene segment not bonded to said polydiorganosiloxane segment being satisfied by a terminating radical; the weight ratio of polydiorganosiloxane segments to polyoxyalkylene segments in said copolymer having a value of from 2 to 8 ; (d) from 0.25% to 5% of a surfactant or mixture of surfactants having an HLB of from 8 to 14; and (e) the remainder water.
Claim 2
Dependent Claim 249 words
A skin conditioning composition characterized by:- (a) from 5% to 30% glycerin; (b) from 0.5% to 10% of a volatile silicone or mixtures thereof selected from methylsiloxane fluids having the average unit formula wherein a has an average of from 2 to 3, inclusive; (c) from 0.05% to 1% of a polydiorganosiloxane- polyalkylene copolymer containing at least one polydiorganosiloxane segment and at least one polyoxyalkylene segment, said polydiorganosiloxane segment consisting essentially of siloxane units wherein b has a value of from 0 to 3, inclusive, there being an average value of approximately 2 R radicals per silicon for all siloxane units in the copolymer, and R denotes a radical selected from methyl, ethyl, vinyl, phenyl and a divalent radical bonding said polyoxyalkylene segment to the polydiorganosiloxane segment, at least 95% of all R radicals being methyl; and said polyoxyalkylene segment having an average molecular weight of at least 1000 and consisting of from 0 to 50 mol percent polyoxypropylene units and from 50 to 100 mol percent polyoxyethylene units, at least one terminal portion of said polyoxyalkylene segment being bonded to said polydiorganosiloxane segment, any terminal portion of said polyoxyalkylene segment not bonded to said polydiorganosiloxane segment being satisfied by a terminating radical; the weight ratio of polydiorganosiloxane segments to polyoxyalkylene segments in said copolymer having a value of from 2 to 8 ; (d) from 0.25% to 5% of a surfactant or mixture of surfactants having an HLB of from 8 to 14; and (e) the remainder water.
Claim 3
Dependent Claim 19 words
A skin conditioning composition according to claim 1 which in addition contains from 0.0005% to 5% of ethyl alcohol.
Claim 4
Dependent Claim 22 words
A skin conditioning composition according to claim 1 or 2 characterized in that the amount of glycerin is from 5% to 20%.
Claim 5
Dependent Claim 25 words
A skin conditioning composition according to any of claims 1 to 3 characterized in that the amount of volatile silicone is from 1% to 4%.
Claim 6
Dependent Claim 25 words
A skin conditioning composition according to any of claims 1 to 4 characterized in that the amount of polyorganosiloxane-polyalkylene copolymer is from 0.1% to 0.5%.
Claim 7
Dependent Claim 21 words
A skin conditioning composition according to any of claims 1 to 5 which in addition contains from 0.5% to 10% petrolatum.
Claim 8
Dependent Claim 27 words
A skin conditioning composition according to any of claims 1 to 6 characterized in that the volatile silicone is cyclic and contains 4 to 5 dimethylsiloxane groups.
Claim 9
Dependent Claim 33 words
A skin conditioning composition according to any of claims 1 to 7 characterized in that the copolymer has the general formula wherein x, y, a and b are as defined in claim 1.

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