Process for the stabilization of polyvinyl chloride and stabilizer compositions

US4338226A · kind A · utility

Assignee

• Neynaber Chemie GmbH · DE

Inventors

• Kurt Worschech · Loxstedt, DE
• Peter Wedl · Loxstedt, DE
• Frido Loffelholz · Bremerhaven, DE
• Bernd Wegemund · Haan, DE
• Werner Erwied · Langenfeld, DE

Key dates

• Filing date: Oct 7, 1980
• Grant date: Jul 6, 1982
• Expiry date: Oct 7, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/38
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention is directed to a process for stabilizing polyvinyl chloride molding mixtures which comprises admixing PA0 (a) from about 0.2 to 5 parts by weight of a sodium aluminosilicate of small particle size; PA0 (b) from about 0.05 to 1.5 parts by weight of one or more calcium salts of fatty acids; PA0 (c) from about 0.05 to 0.5 parts by weight of one or more zinc salts of fatty acids; PA0 (d) from about 0.2 to 2.0 parts by weight of partial esters of polyols and fatty acids; and PA0 (e) from about 0.1 to 10 parts by weight of thioglycolic acid esters of polyols and/or thioglycolic acid esters of monofunctional alcohols per 100 parts by weight of polyvinyl chloride or copolymer of vinyl chloride.