Process for the production of moldings or films of cross-linked polyisocyanate polyadducts and the moldings thus obtained

US5109035A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Joachim Wagner · Ludwigshafen, DE
• Werner Rasshofer · Kürten, DE
• Thomas Elsner · Düsseldorf, DE
• Hans-Albrecht Freitag · Bensberg, DE

Key dates

• Filing date: Dec 17, 1990
• Grant date: Apr 28, 1992
• Expiry date: Dec 17, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention is directed to a process of thermoplastically molding a specific foam composition. The composition is formed by reacting an isocyanate and a relatively low molecular weight tri or higher polyol in the presence of a blowing agent.