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:
Jun. 19, 2012
Filed:
Dec. 19, 2005
Eiju Suzuki, Tokyo, JP;
Tetsuya Omura, Tokyo, JP;
Eiju Suzuki, Tokyo, JP;
Tetsuya Omura, Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
The present invention provides a modified polymer, which is obtained by reacting, with an active metal bonded to a polymer, a modifier represented by the general formula (I) (where Xto Xeach represent a hydrogen atom or a specific monovalent functional group, and at least one of those is other than a hydrogen atom, Rto Reach represent a single bond or a divalent hydrocarbon group having 1 to 18 carbon atoms, and a plurality of aziridine rings may be bonded through any of Xto Xand Rto R). More particularly, the present invention provides a novel modified polymer which has excellent interaction with carbon black and enables improvement in dispersibility of the carbon black when used in a rubber composition blended with the carbon black, a rubber composition containing the modified polymer and capable of providing a tire excellent in low heat generating property, rupture characteristics, and abrasion resistance, and a tire made of the rubber composition and having the above-mentioned characteristics.