Vinyl chloride polymer flameproofed and smoke inhibited with a copper phosphate

US4390654A · kind A · utility

Assignee

• Chemische Werke Huels, A.G. · DE

Inventors

• Ralf Schuler · Recklinghausen, DE
• Gunther Maahs · Marl, DE

Key dates

• Filing date: Apr 28, 1982
• Grant date: Jun 28, 1983
• Expiry date: Apr 28, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/32
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polyvinyl chloride blend contains, as a smoke-reducing additive, a copper (II) hydroxide phosphate of the composition Cu.sub.3 (PO.sub.4).sub.2.Cu(OH).sub.2 in amounts from about 0.1 to 20 parts by weight per 100 parts by weight of polyvinyl chloride. The thus-treated polyvinyl chloride is not discolored by the addition of this copper compound a significant advantage when compared to conventional copper compound additives.