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. 05, 1995
Filed:
Jun. 09, 1994
Applicant:
Inventors:
Robert L Batchelor, Orange, TX (US);
Gene E Kellum, Orange, TX (US);
Assignee:
Chevron Chemical Company, San Ramon, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526106 ; 5263486 ; 526352 ;
Abstract
Disclosed is a process for making polyethylene resin by reacting ethylene or ethylene and a C.sub.3 -C.sub.8 alpha-olefin in the presence of a CrO.sub.3 /TiO.sub.2 catalyst on a silica support in a gas-phase polymerization reactor and in the presence of a catalyst productivity reduction agent such as oxygen. The resin in one embodiment has a melt flow ratio between 65 and 140 and a melt index between 0.1 and 0.6 g/10 min. The resin is particularly suitable for use in blow-molding applications.