Polycarbonate-polyvinyl chloride moulding compounds

US4005037A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Fritz Mietzsch · Cologne, DE
• Dietrich Hardt · Cologne, DE
• Volker Serini · Krefeld, DE
• Herbert Bartl · Odenthal, DE
• Hugo Vernaleken · Walsrode, DE

Key dates

• Filing date: Jan 14, 1975
• Grant date: Jan 25, 1977
• Expiry date: Jan 14, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L51/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for the production of vinyl chloride polymers modified with aromatic polycarbonate, characterized in that mixtures of olefinically unsaturated monomers containing at least 70 % by weight of vinyl chloride are polymerized by radical polymerization in the presence of aromatic polycarbonates, 0 - 100 % by weight of rubber or rubber-modified thermoplastic resin, based on the polycarbonate-modified vinyl chloride polymer, being added before or after polymerization.