Patent · US Expired

Process for separating volatile components from reaction mixtures obtained through high-pressure polymerization

US5200486A · kind A · utility

2Cited by

8References

15Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Heinz Beckemeier · Oberhausen, DE
Heinz Dieter Bühnen · Oberhausen, DE
Herbert Mercamp · Dinslaken, DE
Wilhelm Zoller

Key dates

Filing date	Nov 6, 1991
Grant date	Apr 6, 1993
Priority date	—
Expiry date	Nov 6, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F6/28
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Separation of volatile components from the polymer melts formed during the homopolymerization of ethylene or the copolymerization of ethylene with other copolymerizable compounds at elevated pressures and elevated temperatures by countercurrent treatment with ethylene. Superior separations are obtained by the process.

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