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. 10, 2015
Filed:
Jun. 10, 2010
Masami Kanamaru, Chiba, JP;
Takenori Fujimura, Chiba, JP;
Minoru Yabukami, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
The invention provides a polymerization catalyst produced by bringing components (A) to (D) into contact with one another in a hydrocarbon solvent at 30 to 60° C., wherein the component (A) is a transition metal compound, the component (B) is a solid boron compound capable of forming an ion pair with component (A), the component (C) is an organoaluminum compound, and the component (D) is one or more unsaturated hydrocarbon compounds selected from among an α-olefin, an internal olefin, and a polyene; and the amounts of component (B) and component (C) are 1.2 to 4.0 mol and 5.0 to 50.0 mol, respectively, on the basis of 1 mol of component (A), which catalyst exhibits high activity and can be readily supplied to a polymerization reaction system. The invention also provides a method of storing the polymerization catalyst at 0 to 35° C.