Vinylene copolymer

US4946937A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Walter Heitz · Kirchhain, DE
• Andreas Greiner · Amöneburg, DE

Key dates

• Filing date: Aug 9, 1989
• Grant date: Aug 7, 1990
• Expiry date: Aug 9, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G61/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Vinylene copolymers composed of recurrent structural units of formula I ##STR1## wherein Ar denotes an aromatic or heterocyclic group, R denotes an inert substituent and n stands for an integer with a value from 0-8 and processes for their preparation.