Patent · US Active

Process for the preparation of supported catalysts

US8859451B2 · kind B2 · utility

17Cited by

3References

7Claims

0Family size

Assignee

Basell Polyolefine GmbH · DE

Inventors

Shahram Mihan · Bad Soden, DE
Volker Fraaije · Frankfurt, DE
Harald Schmitz · Weinheim, DE

Key dates

Filing date	Dec 16, 2010
Grant date	Oct 14, 2014
Priority date	—
Expiry date	Apr 5, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F4/65925
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention refers to a process for the preparation of supported catalysts for the polymerization of olefins comprising at least a late transition metal complex, wherein the process comprises two steps. In the first step a catalytically active component comprising at least one late transition metal complex, optionally in the presence of one or more cocatalysts is mixed with a support; and in the second step the obtained mixture is treated at a reduced pressure under a flow of inert gas at a temperature equal to or below 40° C. to obtain a supported catalyst. The method is especially useful for the preparation of dual supported catalysts, useful in the gas-phase polymerization of olefins.

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