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:
Jul. 03, 2001
Filed:
Feb. 29, 2000
Applicant:
Inventors:
Shaotian Wang, Mason, OH (US);
Jia-Chu Liu, Mason, OH (US);
Mark P. Mack, West Chester, OH (US);
Clifford C. Lee, Houston, TX (US);
Assignee:
Equistar Chemicals, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 2/34 ; C08F 4/52 ;
U.S. Cl.
CPC ...
C08F 2/34 ; C08F 4/52 ;
Abstract
A gas phase copolymerization of ethylene is disclosed. The process uses a supported single-site catalyst that contains a heteroatomic ligand and produces polyethylene that has a reduced density. Suitable heteroatomic ligands include boraaryl, azaborolinyl, pyridinyl, pyrrolyl, indolyl, carbazolyl and quinolinyl.