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:
Dec. 18, 2001
Filed:
Jan. 27, 2000
Applicant:
Inventor:
Gregory G. Hlatky, Morrow, OH (US);
Assignee:
Equistar Chemicals, LP, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 4/64 ;
U.S. Cl.
CPC ...
C08F 4/64 ;
Abstract
A process for making a supported, single-site catalyst is disclosed. The transition metal of the catalyst is tethered through a bridged, bidentate ligand that is covalently bound to the support. The catalyst is prepared in a two-step process that involves preparation of a supported ligand from an amine-functionalized support, followed by reaction of the supported ligand with a transition metal compound to give the “tethered”catalyst. An olefin polymerization process that uses the supported catalyst is also disclosed.