Patent · US Expired

Manufacture of homopolymers and copolymers of .alpha.-monoolefins

US4208497A · kind A · utility

4Cited by

2References

3Claims

0Family size

Assignee

BASF SE

Inventors

Klaus Bronstert · Eisenberg (Pfalz), DE
Peter Klaerner · Battenberg, DE
Gerhard Staiger · Frankenthal (Pfalz), DE

Key dates

Filing date	Mar 3, 1978
Grant date	Jun 17, 1980
Priority date	—
Expiry date	Mar 3, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F10/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the manufacture of homopolymers and copolymers of .alpha.-monoolefins by polymerizing the monomer or monomers at relatively low temperatures under relatively low pressures by means of a Ziegler-Natta catalyst comprising (I) a titanium trichloride component and (II) an aluminum-alkyl component, wherein the titanium trichloride component (I) employed is obtained by exposing a conventional catalyst component consisting, or substantially consisting, of titanium trichloride, to a carbon monoxide atmosphere under specific conditions. Catalysts obtained from titanium trichloride components (I) which have been treated in this way exhibit a relatively long induction period.

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