Cosmetic and personal care compositions

US6685925B2 · kind B2 · utility

Inventors

• Jean M. J. Frechet · Oakland, US
• Damian Hajduk · San Jose, US
• Ezat Khoshdel · Bebington, GB
• Mingjun Liu · Campbell, US
• Ralph B. Nielsen · San Jose, US
• Euan Stuart Reid · Bebington, GB
• Keith Leslie Rutherford · Palatine, US

Key dates

• Filing date: Oct 3, 2001
• Grant date: Feb 3, 2004
• Expiry date: Oct 3, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/54
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Cosmetic or personal care compositions, such as for styling hair, comprise a thermoplastic elastomer which is a block copolymer comprising a core polymer having a backbone comprising at least a proportion of C—C bonds and two or more flanking polymers. Each flanking polymer is covalently bound to an end of the core polymer and the copolymer is soluble at a level of at least 1% by weight in water at 25° C. The compositions comprise a cosmetically acceptable diluent or carrier.