At least substantially pore-free polyurethane molding compounds

US5286831A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Bernhard Hess · Moers, DE
• Klaus Prater · Krefeld, DE
• Heinrich Heine · Krefeld, DE
• Joachim Franke · Koblenzer Straße, DE
• Hans-Dieter Jakob · Oberwil, CH

Key dates

• Filing date: Nov 9, 1989
• Grant date: Feb 15, 1994
• Expiry date: Nov 9, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6629
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention directed to an at least substantially pore-free polyurethane prepared by reacting at least one polyisocyanate and a component containing a partial carboxylic acid ester which is the reaction product of a carboxylic acid and an at least trihydric alcohol in quantities such that at least one of the hydroxyl groups of said alcohol is not esterified.