Polymerceramic materials with thermal expansion characteristics similar to those of metals

US6783866B1 · kind B1 · utility

Assignee

• Rauschert GmbH · DE

Inventors

• Peter Greil · Weisendorf, DE
• Andreas Basteck
• Steffen Walter · Gaimersheim, DE

Key dates

• Filing date: Jul 5, 2002
• Grant date: Aug 31, 2004
• Expiry date: Jul 5, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to polymer ceramic composite materials with a virtually zero shrinkage compared to the original model after concluding partial pyrolysis and with a comparable thermal expansion behavior (preferably in an application range of 400° C. or less) to metal construction materials, in particular gray cast iron or steel, which are obtainable by methods described below; corresponding composite constructions and molded parts; and methods for producing and using these materials, composite constructions and molded parts. The polymer ceramic composite materials can for instance be used instead of or in contact with steel or gray cast iron temperature-proof molded parts, predominantly in mechanical engineering, without postmachining after the creative forming.