Lubricants for thermoplastic plastics

US5232967A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Kurt Worschech · Loxstedt, DE
• Erwin Fleischer · Bremerhaven, DE
• Peter Wedl · Loxstedt, DE
• Frido Loeffelholz · Bremerhaven, DE
• Udo E. Brand · Loxstedt, DE

Key dates

• Filing date: Sep 10, 1987
• Grant date: Aug 3, 1993
• 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

Mixed esters comprising the reaction product of PA0 a) an aliphatic, cycloaliphatic and/or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid containing up to 2 hydroxyl groups, or a mixture thereof; PA0 b) an aliphatic polyol containing from 3 to 6 hydroxyl groups or a mixture thereof; and PA0 c) an aliphatic C.sub.2 -C.sub.32 -monocarboxylic acid containing up to 2 hydroxyl groups, or a mixture thereof; PA0 wherein the molar ratio of components a) and b) is approximately n-1:n, wherein n is an integer of from 6 to 15, and component c) is selected so that at least one free hydroxyl group is present per molecule of the mixed ester, are useful as lubricants for the molding of thermoplastic plastics, especially polyvinyl chloride homopolymers or copolymers.