Biodegradable plastics filled with reinforcing materials

US5827905A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Ernst Grigat
• Hanns P. Muller · Leverkusen, DE
• Wolfgang Schulz-Schlitte · Langenfeld, DE
• Aziz E. Sayed · Leverkusen, DE
• Ralf Timmermann · Krefeld, DE

Key dates

• Filing date: Sep 18, 1996
• Grant date: Oct 27, 1998
• Expiry date: Sep 18, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to reinforced thermoplastic moulding compositions prepared from biodegradable polymers, for example aliphatic or polyester amides, aliphatic polyester urethanes, and to the use thereof for the production of mouldings and to the mouldings, wherein the reinforcing materials are selected from wood flour, fibres of natural origin, minerals of natural origin, cellulose and cellulose derivatives.