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:
Oct. 24, 2017
Filed:
Feb. 14, 2014
Applicant:
Bridgestone Corporation, Tokyo, JP;
Inventors:
Shojiro Kaita, Oizumi-machi, JP;
Satoru Tamaki, Kodaira, JP;
Assignee:
BRIDGESTONE CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/54 (2006.01); C08F 136/08 (2006.01);
U.S. Cl.
CPC ...
C08F 136/08 (2013.01); C08F 136/08 (2013.01); C08F 4/545 (2013.01);
Abstract
The polymerization catalyst composition includes: Component (A): a rare earth element compound of formula (i): M-(NQ)(NQ)(NQ) (where M is at least one selected from lanthanoid, scandium, and yttrium, and NQ, NQand NQare amide groups and each have a M-N bond; Component (B): a hydrocarbyl aluminoxane compound having a C1-20 hydrocarbon group; and Component (C): a compound of formula (X): YRRR(where Y is a metal selected from groups 1, 2, 12 and 13 in a periodic table, Rand Rare C1-10 hydrocarbon groups or hydrogen atoms and Ris a C1-10 hydrocarbon group).