Lubricant system for the processing of polyvinyl chloride

US4857216A · kind A · utility

Assignee

• Neynaber Chemie GmbH · DE

Inventors

• Kurt Worschech · Loxstedt, DE
• Peter Wedl · Loxstedt, DE
• Helmut Kachel · Bremerhaven, DE
• Guenter Schult · Loxstedt, DE

Key dates

• Filing date: Sep 10, 1987
• Grant date: Aug 15, 1989
• Expiry date: Sep 10, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A lubricant system for emulsion PVC of high K-value comprising: PA0 I. at least one ester from each of sections (A) and (B): PA1 A. a neutral ester substantially free from hydroxyl and carboxyl groups which is: PA2 (1) a mixed ester of an aliphatic, cycloaliphatic, or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid, or a mixture thereof; an aliphatic polyol containing from 2 to 6 hydroxyl groups; and an aliphatic C.sub.12 -C.sub.30 -monocarboxylic acid; or is PA2 (2) a fatty acid fatty alcohol ester containing a total of 36 to 44 carbon atoms; or is PA2 (3) a mixture of (1) and (2); and PA1 B. a partial ester containing on average at least one free hydroxyl or carboxyl polar group which is: PA2 (1) a mixed ester of an aliphatic, cycloaliphatic, or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid, or a mixture thereof; an aliphatic polyol containing from 2 to 6 hydroxyl groups; and an aliphatic C.sub.12 -C.sub.30 -monocarboxylic acid; said ester containing on average at least one hydroxyl group per molecule of mixed ester; or is PA2 (2) an ester of an aliphatic, cycloaliphatic, or aromatic polycarboxylic acid or an aliphatic, cycloaliphatic or aromatic hydroxycarboxylic acid, or a mixtur…