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. 31, 1978
Filed:
Nov. 03, 1976
Applicant:
Inventor:
Yu-Tang Hwang, Clinton, IA (US);
Assignee:
Chemplex Company, Rolling Meadows, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526123 ; 2524 / ; 252430 ; 2524 / ; 2524 / ; 526106 ; 526130 ; 526154 ; 526172 ; 526352 ;
Abstract
A new catalyst and method of making polymers therewith and the process of preparing the catalyst in which the catalyst is prepared by dispersing on a finely divided carrier material, particularly a difficultly reducible inorganic support such as silica, an organic chromium complex such as a chelate derived from orthohydroxyphenyl or 2'-hydroxyphenyl carbonyl compounds, including ketone, aldehyde and amide types, and their derivatives, and activating the resulting mixture by heating at an elevated temperature in a non-oxidizing atmosphere.