Thermoplastic moulding materials made from vinyl chloride polymers and graft polymers and having improved properties

US4778850A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Christian Lindner · Bensheim, DE
• Hartmuth Buding · Titz, DE
• Hans-Eberhard Braese · Cologne, DE
• Rudolf Casper · Leverkusen, DE
• Karl-Heinz Ott

Key dates

• Filing date: Jun 22, 1987
• Grant date: Oct 18, 1988
• Expiry date: Jun 22, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L9/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

PA0 A: Thermoplastic moulding materials made from a vinyl chloride homopolymer or copolymer containing at least 50% by weight of vinyl choloride units, PA0 B: a graft polymer, prepared by graft polymerization of PA1 B1: 50 to 85 parts by weight of a mixture of at least two of the monomers styrene, acrylonitrile, methyl methacrylate and .alpha.-methyl styrene on PA1 B2: 50 to 15 parts by weight of an at least partially crosslinked butadiene or acrylate rubber having average particle diameters of 0.08 to 1 .mu.m, and PA0 C: a hydrogenated nitrile rubber in which the nitrile group content is 50 to 28% by weight and the degree of hydrogenation is greater than 50%, and PA0 D: optionally, a non-crosslinked, rubber-like ethylene or alkyl acrylate polymer, optionally containing copolymerized up to 70% by weight of vinyl acetate, acrylonitrile, methyl methacrylate or carbon monoxide, PA0 E: optionally at least partially crosslinked, rubber-like ethylene or alkyl acrylate polymer, optionally containing copolymerized up to 50% by weight of vinyl acetate, acrylonitrile, methyl methacrylate or carbon monoxide.