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:
Jan. 04, 1977
Filed:
Dec. 04, 1974
Applicant:
Inventor:
Donald R Witt, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526348 ; 252430 ; 2524 / ; 526113 ; 526126 ; 526194 ; 526352 ;
Abstract
A particulate catalyst support containing titanium is heated to activation temperature and thereafter impregnated with a .pi. bonded organochromium compound. Thereafter the chromium-containing catalyst is reactivated, at least a portion of the reactivation occurring in the presence of oxygen. Such catalysts are particularly suitable for the production of high melt index polymer from at least one mono-1-olefin containing 2 to 8 carbon atoms per molecule.
Witt, Donald. (1977). Reactivation of organochromium olefin polymerization catalyst in (U.S. Patent No. 4001196). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4001196
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile