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. 04, 2005
Filed:
Nov. 13, 2000
Takuo Sone, Tokyo, JP;
Ryouji Tanaka, Tokyo, JP;
Kouichirou Tani, Tokyo, JP;
Iwakazu Hattori, Tokyo, JP;
Hiroshi Akema, Tokyo, JP;
Atsushi Nakayama, Tokyo, JP;
Takuo Sone, Tokyo, JP;
Ryouji Tanaka, Tokyo, JP;
Kouichirou Tani, Tokyo, JP;
Iwakazu Hattori, Tokyo, JP;
Hiroshi Akema, Tokyo, JP;
Atsushi Nakayama, Tokyo, JP;
JSR Corporation, Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A novel modified conjugated diene polymer is obtained by polymerizing a conjugated diene compound with a specified catalyst consisting of components (a)-(c) and then reacting with at least one specified compound selected from the group consisting of components (d)-(l), and has a content of cis-1,4-bond of not less than 85% and a ratio of weight average molecular weight to number average molecular weight of not more than 4. And also, a rubber composition comprises the modified conjugated diene polymer a rubber ingredient.