Copolymer based on tert-butyl acrylate or methacrylate

US5132417A · kind A · utility

Assignee

• BASF SE

Inventors

• Birgit Potthoff-Karl · Weinheim, DE
• Karin Sperling-Vietmeier · Neustadt, DE
• Axel Sanner · Bischofswerda, DE

Key dates

• Filing date: Nov 20, 1989
• Grant date: Jul 21, 1992
• Expiry date: Nov 20, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F226/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Copolymers based on tert-butyl acrylate and/or tert-butyl methacrylate, having a K value of from 10 to 50 and obtainable by free radical polymerization of PA1 A) from 20 to 90% by weight of tert-butyl acrylate and/or tert-butyl methacrylate, PA1 B) from 10 to 60% by weight of N-vinylpyrrolidone and PA1 C) from 0 to 30% by weight of a C.sub.1 -C.sub.20 -alkyl acrylate, a C.sub.1 -C.sub.20 -alkyl methacrylate, a C.sub.2 -C.sub.4 -hydroxyalkyl acrylate, a C.sub.2 -C.sub.4 -hydroxyalkyl methacrylate or vinyl acetate or a mixture thereof, are used as film formers in hair setting compositions and compositions for the surface protection of two- or three-dimensional structures.