Impact-modified blends

US7790805B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Herbert Eichenauer · Dormagen, DE
• Bernd Urbanneck · Wittlich, DE
• Thomas Eckel · Dormagen, DE
• Eckhard Wenz · Neunburg vorm Wald, DE

Key dates

• Filing date: Nov 25, 2003
• Grant date: Sep 7, 2010
• Expiry date: Dec 17, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L77/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic molding composition suitable for producing article having improved surface quality is disclosed. The composition includes A) at least one polymeric resin selected from the group consisting of polycarbonate, polyester carbonate, polyamide, polyalkylene terephthalate and polyoxymethylene, and B) a co-precipitated mixture of graft polymer B.1 the preparation of which entailed redox initiation and graft copolymer B.2 the preparation of which entailed persulfate initiation.