Molding materials based on polyvinyl chloride and polyphenylene oxide

US4045382A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Eberhard Braese · Cologne, DE
• Siegfried Adelmann
• Dietrich Hardt · Cologne, DE
• Dieter Margotte
• Hugo Vernaleken · Walsrode, DE

Key dates

• Filing date: Aug 7, 1975
• Grant date: Aug 30, 1977
• Expiry date: Aug 7, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L71/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to thermoplastic molding materials, of high heat distortion point, comprising polyvinyl chloride or copolymers of vinyl chloride with other vinyl compounds, and polyphenylene oxides. The molding materials according to the invention comprises a blend consisting of PA1 A. 30 - 90% by weight of polyvinyl chloride or of copolymers of vinyl chloride with up to about 30% by weight based on the weight of the copolymer of one or more other vinyl compounds which are copolymerizable with vinyl chloride, and PA1 B. about 10 - 70% by weight of a polyphenylene oxide. Particularly preferred molding materials comprise a blend consisting of PA1 A. 30 - 70% by weight of polyvinyl chloride or of its copolymers with up to about 30% by weight based on the weight of the copolymer of copolymerizable vinyl compounds, and PA1 B. about 70 - 30% by weight of a polyphenylene oxide.