Flame-resistant polycarbonate ABS blends

US6528561B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Michael Zobel · Bridgwater, GB
• Thomas Eckel · Dormagen, DE
• Torsten Derr · Dormagen, DE
• Dieter Wittmann · Leverkusen, DE

Key dates

• Filing date: Feb 27, 2002
• Grant date: Mar 4, 2003
• Expiry date: Feb 27, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to polycarbonate-ABS moulding compositions provided with phosphonate amines, which moulding compositions exhibit excellent flame protection and very good processing properties, such as improved flow properties, improved modulus of elasticity and reduced formation of a coating on the tool, the graft polymer being prepared by means of mass, solution or mass-suspension polymerization processes.