Patent · US Expired

Manufacture of homopolymers and copolymers of .alpha.-monoolefins

US4282341A · kind A · utility

7Cited by

1References

1Claims

0Family size

Assignee

BASF SE

Inventors

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

Key dates

Filing date	Sep 12, 1979
Grant date	Aug 4, 1981
Priority date	—
Expiry date	Sep 12, 1999

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 chloride component and (II) an aluminumalkyl component, wherein the titanium chloride component (I) employed is obtained by exposing a conventional catalyst component consisting, or substantially consisting, of titanium trichloride or titanium tetrachloride, to a carbon dioxide atmosphere under specific conditions. Catalysts obtained from titanium chloride 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.