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:
Mar. 22, 1983
Filed:
Jul. 07, 1981
Applicant:
Inventors:
Kenya Makino, Kuwana, JP;
Hideo Sakurai, Yokkaichi, JP;
Masaru Watanabe, Yokkaichi, JP;
Toshiyuki Nishimura, Kameyama, JP;
Assignee:
Japan EP Rubber Co., Ltd., Mie, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526124 ; 526282 ; 526283 ; 526348 ;
Abstract
In a process for producing a rubbery olefinic copolymer which comprises random-copolymerizing at least two olefins in the presence of a catalyst composed of (A) a titanium compound and (B) an organometallic compound of a metal of Groups I to III of the periodic table, the improvement wherein the titanium compound (A) of the catalyst is a solution of a solid titanium halide in a hydrocarbon solvent, a halogenated hydrocarbon solvent or a mixture of both, said solid titanium halide being rendered soluble in said solvent.