Patent · US Expired

Separate streams with different catalyst prior to combination

US3931357A · kind A · utility

4Cited by

1References

18Claims

0Family size

Assignee

Chemische Werke Huels Aktiengesellschaft · US

Inventors

Klaus Meyer · Kaarst, DE
Roland Streck · Marl, DE
Heinrich Weber · Recklinghausen, DE

Key dates

Filing date	Aug 28, 1973
Grant date	Jan 6, 1976
Priority date	—
Expiry date	Aug 28, 1993

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G81/024
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the modification of unsaturated polyolefin rubbers by reaction with other polymers amenable to the metathesis reaction, in the liquid phase, preferably in solution, in the presence of a metathesis catalyst system comprising (a) a soluble compound of a metal of the Subgroups V through VII of the periodic table, and (b) a soluble alkyl or hydride of a metal of Main groups I through III of the periodic table, as well as optionally activators, characterized by the metallic components of the catalyst system each being dispersed, preferably dissolved, separately in partial streams wherein the reaction components are contained, and these partial streams are intermixed intensively.

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