The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2005
Filed:
Apr. 10, 2002
Applicant:
Keng-yu Shih, Columbia, MD (US);
Inventor:
Keng-Yu Shih, Columbia, MD (US);
Assignee:
W. R. Grace & Co.-Conn., Columbia, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F004/44 ; B01J031/38 ;
U.S. Cl.
CPC ...
Abstract
The present invention is directed to a novel one-step method for forming a supported catalyst complex of high activity by substantially simultaneously contacting a bidentate or tridentate ligand forming compound, a transition metal compound and a Lewis acid support-activator agglomerate. The catalyst can be formed prior to polymerization of olefins or within the polymerization reaction zone.