Vinyl copolymers with grafted-on polycarbonate chains, their production and use

US4874816A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Ralf Dujardin · Willich, DE
• Wolfgang Ebert · Krefeld, DE
• Rolf-Volker Meyer · Krefeld, DE
• Klaus Berg · Krefeld, DE
• Ulrich Grigo · New Martinsville, US
• Wolfgang Wehnert · Krefeld, DE

Key dates

• Filing date: May 13, 1988
• Grant date: Oct 17, 1989
• Expiry date: May 13, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F8/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the production of vinyl copolymers with grafted-on polycarbonate chains, to the grafted vinyl copolymers obtainable by the process according to the invention, to their use as modifiers for mixtures of thermoplastic polycarbonates and thermoplastic polystyrenes, to such mixtures themselves and to the use of such mixtures as substrates for optical discs.