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:
Feb. 08, 2000
Filed:
Aug. 14, 1997
Applicant:
Inventors:
Dale Andrew Wright, Charleston, WV (US);
Theodore Randolph Engelmann, Bound Brook, NJ (US);
Antonios Nicholas, Belle Mead, NJ (US);
Francois Alexandre, Anjou, CA;
Assignees:
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Peiromont and Company Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 68 ; 526127 ; 526129 ; 526134 ; 5263485 ; 526901 ; 526905 ;
Abstract
A process for preparing high density polyethylene in the gas phase comprising contacting a mixture comprising ethylene and one or more alpha-olefins with the supported reaction product of a bis-hydrocarbylsilyl chromate and a hydrocarbylaluminum compound or a hydrocarbyl boron compound in a fluidized bed reactor having a recycle gas line, under particularly defined polymerization conditions, including, but not limited to, the following provisos: