Hydrocarbon resins

US4071676A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gerhard Werner · Weinheim, DE
• Peter Grafe
• Richard Sattelmeyer · Wiesbaden, DE
• Heinz Schmelzer

Key dates

• Filing date: May 13, 1976
• Grant date: Jan 31, 1978
• Expiry date: May 13, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F232/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the preparation of a hydrocarbon resin which comprises polymerizing a mixture of (a) from 30 to 90% by weight of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of an aliphatic olefin containing 8 carbon atoms in the presence of a Friedel-Crafts catalyst and a solvent at a temperature of from 30.degree. to 140.degree. C wherein the polymer obtained is isolated as such or subsequently hydrogenated, and hydrocarbon resins prepared according to said process.