Copolymers for rapid prototyping

US6143852A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• David Harrison · Leverkusen, DE
• Wolfgang Podszun · Neunburg vorm Wald, DE

Key dates

• Filing date: Oct 14, 1999
• Grant date: Nov 7, 2000
• Expiry date: Oct 14, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C41/003
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to spherical methyl methacrylate copolymers with an average particle size of 6 to 50 .mu.m and a narrow particle size distribution, and to a method of producing them. The invention further relates to the use of these spherical copolymers for the production of 3-D models by laser sintering.