Alkaline modified pentaerythritol stabilizer for vinyl chloride resin

US4501840A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Peter Werle · Gelnhausen, DE
• Wolfgang Merk · Hanau, DE

Key dates

• Filing date: Oct 20, 1983
• Grant date: Feb 26, 1985
• Expiry date: Oct 20, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K9/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Pentaerythritol is treated at a temperature of about 180.degree. to 220.degree. C. with a strongly alkaline acting material, e.g. calcium oxide. The thus treated pentaerythritol serves as a costabilizer e.g., with the salt of a polyvalent metal and a carboxylic acid, for a vinyl chloride resin, e.g. polyvinyl chloride and has outstanding properties as such.