Light-resistant thermoplastic polyurethanes, a process for their preparation and their use

US6596820B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hanns P. Muller · Leverkusen, DE
• Horst Gruttmann · Leverkusen, DE
• Wolfgang Kaufhold · Recklinghausen, DE
• Henricus Peerlings · Solingen, DE

Key dates

• Filing date: Mar 25, 2002
• Grant date: Jul 22, 2003
• Expiry date: Mar 25, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L75/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic molding composition that contains a light-resistant aliphatic thermoplastic polyurethane elastomer is disclosed. The composition which largely contains of thermoplastic polyurethanes with high molecular weights and small amounts of thermoplastic polyurethanes with low molecular weights is useful for the preparation of a variety of articles and for use as sinterable composition in powder form.