Thermoplastic elastomeric copolymers and hair and skin care compositions containing the same

• US 6,458,906 B1
• Filed: 03/21/1995
• Issued: 10/01/2002
• Est. Priority Date: 07/01/1993
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Torgerson, Peter Marte, Midha, Sanjeev
• Primary Examiner(s): HENDERSON JR, CHRISTOPHER A
• Application Number:
  US08/409,486
• Time in Patent Office: 2,751 Days
• Field of Search: 526/240, 526/264, 526/298, 526/304, 526/306, 526/307, 526/307.2, 526/307.5
• US Class Current: 526/240
• CPC Class Codes: A61K 8/73 Polysaccharides
• CPC Class Codes: A61K 8/91 Graft copolymers A61K8/89 takes precedence
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/04 for chemically tanning the skin topical sun or radiation screening or tanning preparations A61Q17/04
• CPC Class Codes: A61Q 5/00 Preparations for care of the hair
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/06 Preparations for styling the hair, e.g. by temporary shaping or colouring
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners
• CPC Class Codes: C08F 290/04 Polymers provided for in subclasses C08C or C08F
• CPC Class Codes: C08F 290/065 Polyamides; Polyesteramides; Polyimides

Abstract

The present invention relates to water or alcohol soluble or dispersible thermoplastic elastomeric copolymers and to cosmetic and pharmaceutical compositions containing these copolymers. This invention especially relates to copolymers useful for hair styling purposes, and to hair styling compositions containing these copolymers. This invention further relates to copolymers useful for providing cosmetic and pharmaceutical compositions for topical application to the skin. These topical skin care compositions are useful for delivereing and/or transdermally transporting active ingredients to or thorugh the skin.

Claims

1. A water or alcohol soluble or dispersible thermoplastic elastomeric copolymer having a backbone and one or more polymeric side chains, said copolymer formed from the copolymerization of randomly repeating A and B units and corresponding to the formula

2. A copolymer according to claim 1 wherein said A monomer units are selected from the group consisting of n-butyl acrylate, 2-ethylhexyl acrylate, N-octyl acrylamide, 2-methoxyethyl acrylate, 2-hydroxyethyl acrylate, N,N-dimethylaminoethyl acrylate, and mixtures thereof;

R is methyl, R′

is ethyl, m is an integer from about 10 to about 2000, a is an integer from about 100 to about 3000, and b is an integer from about 2 to about 50.

3. A water or alcohol soluble or dispersible thermoplastic elastomeric copolymer having a backbone and one or more polymeric side chains, said copolymer formed from the copolymerization of randomly repeating A and B units and corresponding to the formula

4. A copolymer according to claim 3 wherein said A monomer units are selected from the group consisting of n-butyl acrylate, 2-ethylhexyl acrylate, N-octyl acrylamide, 2-methoxyethyl acrylate, 2-hydroxyethyl acrylate, N,N-dimethylaminoethyl acrylate, and mixtures thereof;

R is selected from the group consisting of H and methyl, R′

is ethyl, m is an integer from about 10 to about 2000, a is an integer from about 100 to about 3000, and b is an integer from about 2 to about 50.