Vinylcyclohexane-based polymers

US6649723B1 · kind B1 · utility

Assignees

• BAYER HEALTHCARE LLC · DE
• TEIJIN LIMITED · JP

Inventors

• Volker Wege · Neuss, DE
• Friedrich-Karl Bruder · Krefeld, DE
• Konstadinos Douzinas · Recklinghausen, DE
• Yun Chen · Krefeld, DE

Key dates

• Filing date: Mar 4, 2002
• Grant date: Nov 18, 2003
• Expiry date: Mar 4, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L53/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A molding composition comprising a (co)polymer of vinylcyclohexane is disclosed. The copolymer is characterized in having an absolute molecular weight Mw of 100,000 to 450,000 g/mol, polydispersity index of 1 to 3 and maximum melt viscosity of 1000 Pa·s, as measured at 300° C. and at a shear rate of 1000 sec−1. The composition is suitable for producing a variety of molded article most notably optical data storage media.