Polycarbonate moulding composition with improved flow and processiblity

US4826918A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Jurgen Kress · Krefeld, DE
• Dieter Wittmann · Leverkusen, DE
• Bernd Quiring · Leverkusen, DE
• Horst Peters · Leverkusen, DE
• Jochen Schoeps · Krefeld, DE

Key dates

• Filing date: Feb 29, 1988
• Grant date: May 2, 1989
• Expiry date: Feb 29, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/902
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermoplastic molding compositions containing PA0 A. 10 to 98 parts by weight and preferably 10 to 95 parts by weight of one or more thermoplastic aromatic polycarbonates, PA0 B. 2 to 60 parts by weight and preferably 5 to 60 parts by weight of one or more graft polymers of: PA0 B.1 5 to 90 parts by weight and preferably 30 to 80 parts by weight of a mixture of PA0 B.1.1 50 to 95 parts by weight styrene, .alpha.-methyl styrene, nucleus-substituted styrene, methyl methacrylate or mixtures thereof and PA0 B.1.2 50 to 5 parts by weight acrylonitrile, methacrylonitrile, methyl methacrylate, maleic acid anhydride, N-substituted maleic imide or mixtures thereof, or PA0 B.2 95 to 10 parts by weight and preferably 70 to 20 parts by weight of a rubber having a glass transition temperature T.sub.G of .ltoreq.10.degree. C., PA0 C. 0 to 80 parts by weight of a thermoplastic copolymer of: PA0 C.1 50 to 95 parts by weight styrene, .alpha.-methyl styrene, nucleus-substituted styrene, methyl methacrylate or mixtures thereof and PA0 C. 2 50 to 5 parts by weight acrylonitrile, methacrylonitrile, methyl methacrylate, maleic acid anhydride, N-substituted maleic imide or mixtures thereof, the sum of th…