Patent · US Expired

Preparation of copolymers of ethylene with alkenecarboxylic acids

US5739242A · kind A · utility

2Cited by

2References

2Claims

0Family size

Assignee

BASF SE

Inventors

Andreas Deckers · Flomborn, DE
Dieter Littmann · Heßheim, DE
Roger Klimesch · Ransbach-Baumbach, DE

Key dates

Filing date	Nov 17, 1995
Grant date	Apr 14, 1998
Priority date	—
Expiry date	Nov 17, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F210/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the preparation of copolymers of ethylene and dicarboxylic acid in the presence of a free-radical inhibitor. The process comprises of warming a mixture of ethylene and C.sub.3 -C.sub.6 -alkenecarboxylic acid to a temperature of from 60.degree. to 100.degree. C. before addition of the free-radical inhibitor. The maximum polymerization temperature to recover said copolymers of ethylene is in the range of from 100.degree. to 260.degree. C.; and wherein said copolymer comprises from 94 to 99.5 mol % of ethylene and from 0.5 to 6.0 mol % of C.sub.3 -C.sub.6 -alkenecarboxylic acid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.