Patent · US Active

Process for preparing a supported catalyst system for olefin polymerization, the catalyst system and its use

US8999875B2 · kind B2 · utility

17Cited by

8References

9Claims

0Family size

Assignee

Basell Polyolefine GmbH · DE

Inventors

Fabiana Fantinel · Frankfurt, DE
Shahram Mihan · Bad Soden, DE
Rainer Karer · Kaiserslautern, DE
Volker Fraaije · Frankfurt, DE

Key dates

Filing date	May 26, 2011
Grant date	Apr 7, 2015
Priority date	—
Expiry date	Jun 26, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S526/943
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention refers to a process for preparing a supported catalyst system for the polymerization of olefins comprising at least one active catalyst component on a support, the process comprisingA) impregnating a dry porous support component with a mixture comprising at least one precatalyst, at least one cocatalyst, and a first solvent, such that the total volume of the mixture is from 0.8 to 2.0 times the total pore volume of the support component, andB) thereafter, adding a second solvent in an amount of more than 1.5 times the total pore volume of the support component.The invention refers further to a catalyst system made by this process and the use of this catalyst system for polymerization or copolymerization of olefins.

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