Blends of styrene-acrylonitrile polymer, styrene-methyl methacrylate-maleic anhydride terpolymer and glass filler

US5304591A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernhard H. Nowakowsky · Ludwigshafen, DE
• Rainer Theysohn · Bischofswerda, DE
• Rainer Bueschl · Bad Dürkheim, DE
• Klaus Muehlbach · Havelsee, DE
• Graham E. McKee · Ludwigshafen, DE

Key dates

• Filing date: Apr 30, 1992
• Grant date: Apr 19, 1994
• Expiry date: Apr 30, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L51/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic molding composition composed of, based on the total of A, B, C and D, PA0 40-95% by weight of a copolymer A of, based on A, PA0 90-95% by weight of styrene and/or its derivatives and 10-50% by weight of acrylonitrile, optionally up to 50% by weight of a graft copolymer B of 20-80% by weight of a monomer mixture of either styrene/acrylonitrile in the ration from 9:1 to 4:6 or styrene/acrylonitrile/methylacrylate in the ration from 19:1:1 to 8:6:6 onto 80-20% by weight of an elastomer based on butadiene or acrylic ester as grafting base, graft copolymerization being effected in either emulsion or solution, 1-50% by weight of a reinforcing glass fiber material C and 0.1-50% by weight of a terpolymer D of styrene, methyl methacrylate and maleic anhydride composed of 1-15% by weight each of styrene and maleic anhydride and a styrene/maleic anhydride ratio of from 5:1 to 1:5, and methyl methacrylate.