Copolymers, having a uniform structure, of cyclic dienes and their use

US4126739A · kind A · utility

Assignee

• BASF SE

Inventors

• Richard Hoene · Heidelberg, DE
• Heinz-Hilmar Bankowsky · Bischofswerda, DE
• Eduard Hartmann · Schneisingen, CH
• Hans-Uwe Schenck · Monsheim, DE
• Paul Boerzel · Bischofswerda, DE

Key dates

• Filing date: Nov 21, 1977
• Grant date: Nov 21, 1978
• Expiry date: Nov 21, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F232/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Copolymers, having a uniform structure, of cyclic dienes are obtained by heating a mixture of from 35 to 96% by weight of cyclopentadiene, dicyclopentadiene and/or methyldicyclopentadiene, which may or may not be partially replaced by methylcyclopentadiene or tricyclopentadiene or methyltricyclopentadiene, from 1 to 30% by weight of maleic anhydride, maleic acid or a monoalkyl maleate, which maleic acid or maleic acid derivatives may be partially replaced by other .alpha.,.beta.-olefinically unsaturated monocarboxylic acids or dicarboxylic acids of 3 to 5 carbon atoms, and from 3 to 45% by weight of one or more vinyl-aromatics to 230.degree.-320.degree. C, during which heating the mixture does not remain at from 30.degree. to 230.degree. C for more than 5 hours, and preferably for not more than 2 hours. The copolymers may be used as binders for printing inks and coatings, and as additives in adhesives.