Polymer mixture

US5104935A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Edgar Leitz · Dormagen, DE
• Karl-Erwin Piejko · Bensberg, DE
• Christian Lindner · Bensheim, DE
• Karl-Heinz Ott
• Hans-Eberhard Braese · Cologne, DE

Key dates

• Filing date: Dec 6, 1989
• Grant date: Apr 14, 1992
• Expiry date: Dec 6, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymer mixtures of PA0 a. 10 to 60 parts by weight of a graft polymer, PA0 b. 10 to 50 parts by weight of a partially cross-linked, rubber like copolymer of from 5 to 40% by weight of acrylonitrile, styrene, alkyl methacrylate or mixtures thereof and from 95 to 60% by weight of alkyl acrylate having a gel content of from 20 to 99% by weight, PA0 c. 5 to 40 parts by weight of an uncross-linked polymer of styrenes, .alpha.-methyl styrenes, acrylonitrile, methacrylonitrile, esters of acrylic acid or methacrylic acid, vinyl C.sub.1 to C.sub.4 carboxylic acids or mixtures of these monomers having Staudinger Indices (.eta.) (determined in dimethyl formamide at 23.degree. C.) of from 0.3 to 1.5 dl/g and PA0 d. 1 to 45 parts by weight of a polymer of a cyclic aliphatic ester or of an aliphatic cyclic ester and an aliphatic cyclic carbonate.