Graft copolymers, their production and use

US5137971A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Ralf Dujardin · Willich, DE
• Richard Weider · Leverkusen, DE
• Peter Horlacher · Senden, DE
• Werner Nouvertne · Krefeld, DE

Key dates

• Filing date: Jan 31, 1991
• Grant date: Aug 11, 1992
• Expiry date: Jan 31, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L69/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for producing a graft copolymer is disclosed. The graft copolymer, based on a rubber which contains phenolic OH groups and grafted with polycarbonate chains is produced under the conditions of the two-phase interfacial polycondensation. Also disclosed are gasoline resistant thermoplastic polycarbonate compositions containing the graft.