Plastics which cure in a series of steps having urethane, urea, siloxane and acrylate groups

US5095045A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jens Winkel · Cologne, DE
• Peter Schwabe · Leverkusen, DE
• Hanns P. Muller · Leverkusen, DE

Key dates

• Filing date: Jul 9, 1990
• Grant date: Mar 10, 1992
• Expiry date: Jul 9, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A hard, resistant material formed by mixing and curing PA0 a) at least one polyfunctional silicopolyether, PA0 b) at least one monomer which can be subjected to free-radical curing, PA0 c) at least one catalyst for polymerization of the free-radical monomers at high temperature, low temperature or under the influence of light, and PA0 d) at least one catalyst for the condensation of the silicopolyether.