Inner parting agents for producing self-parting moldings made of polyisocyanate polyaddition products

US6169124A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Horn · Heidelberg, DE
• Dietrich Scherzer · Neustadt, DE
• Karl Haberle · Speyer, DE
• Ulrich Treuling · Bensheim, DE
• Georg Partusch · Geltendorf, DE
• Gunter Tanny · Guntersblum, DE
• Axel Kistenmacher · Ludwigshafen, DE

Key dates

• Filing date: May 14, 1999
• Grant date: Jan 2, 2001
• Expiry date: May 14, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2375/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In a process for producing self-releasing, compact or cellular moldings which comprise polyisocyanate polyaddition products and may contain reinforcing material by reacting PA1 a) organic and/or modified organic polyisocyanates with PA1 b) at least one compound containing at least two reactive hydrogen atoms and having a molecular weight of from 62 to 10,000 and, if desired, PA1 c) chain extenders and/or crosslinkers in the presence of PA1 d) internal mold release agents and in the presence of or absence of PA1 e) catalysts, PA1 f) blowing agents, PA1 g) reinforcing materials and PA1 h) auxiliaries in an open or closed mold, the internal mold release agents (d) used are diesters and/or monoesters of alkylsuccinic acids and/or diesters and/or monoesters of alkenylsuccinic acids.