Method of preparing polyurethane foam utilizing block copolymers having linked siloxane blocks

US5844010A · kind A · utility

Assignee

• Th. Goldschmidt. AG · DE

Inventors

• Georg Burkhart · Essen, DE
• Rolf-Dieter Langenhagen · Hattingen, DE
• Andreas Weier · Essen, DE

Key dates

• Filing date: Jun 5, 1997
• Grant date: Dec 1, 1998
• Expiry date: Jun 5, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/50
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to the use of block copolymers having linked siloxane blocks of the general average formula ##STR1## as additive in the production of polyurethane foams.