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:
Sep. 21, 2010
Filed:
Oct. 20, 2005
Applicants:
Michinori Suzuki, Ichihara, JP;
Masato Murakami, Ichihara, JP;
Naomi Okamoto, Ichihara, JP;
Mitsuharu Eikyuu, Ichihara, JP;
Kouji Ishiguchi, Ichihara, JP;
Inventors:
Michinori Suzuki, Ichihara, JP;
Masato Murakami, Ichihara, JP;
Naomi Okamoto, Ichihara, JP;
Mitsuharu Eikyuu, Ichihara, JP;
Kouji Ishiguchi, Ichihara, JP;
Assignee:
UBE Industries, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/52 (2006.01); C08F 36/06 (2006.01); C08F 36/04 (2006.01); B01J 31/20 (2006.01); B01J 31/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A catalyst for polymerization of conjugated diene comprises (A) an yttrium compound; (B) an ionic compound including a non-coordinate anion and a cation; and (C) an organometallic compound including an element selected from the groups 2, 12 and 13 of the periodic table.