Plastic material made from a polymer blend

US6509397B1 · kind B1 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Helmut Nägele · Remchingen, DE
• Jürgen Pfitzer · Remchingen, DE
• Norbert Eisenreich · Remchingen, DE
• Peter Eyerer · Karlsruhe, DE
• Peter Elsner · Remchingen, DE
• Wilhelm Eckl · Karlsruhe, DE

Key dates

• Filing date: Jul 11, 2001
• Grant date: Jan 21, 2003
• Expiry date: Jul 11, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A plastic material made from a polymer blend, is characterized in that said material contains at least one lignin-based natural polymer, in particular based on alkali lignin produced during the extraction of cellulose, and at least one other synthetic and/or natural polymer which increases the impact resistance, proteins excluded. The inventive plastic material has excellent characteristics. It is biodegradable due to the natural polymer content and has, to a considerable extent, an ecologically neutral CO2 balance. The polymer blend can be used advantageously in place of wood or wood materials.