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. 21, 2014
Filed:
Sep. 15, 2006
Mayumi Oshima, Yokohama, JP;
Mayumi Oshima, Yokohama, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
The present invention provides a conjugated diene polymer, a method for producing a conjugated diene polymer, a conjugated diene polymer composition and a method for producing a conjugated diene polymer composition. The conjugated diene polymer is a conjugated diene polymer having a conjugated diene-based monomer unit and a group of the formula (I), wherein assuming the whole area of the molecular weight distribution curve obtained by gel permeation chromatography as 100%, the peak area of the molecular weight peak at the lowest molecular weight side is not less than 50%: wherein Rand Rrepresent independently a hydrocarbon group, hydrocarbon oxy group or hydroxyl group, m represents an integer of 0 to 10, and Arepresents a polar functional group free of an active hydrogen atom.