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:
Aug. 26, 2014
Filed:
Jan. 24, 2012
Mana Ito, Ichihara, JP;
Katsunari Inagaki, Ichihara, JP;
Mayumi Oshima, Chuo-ku, JP;
Sumitomo Chemical Company, Ltd., Tokyo, JP;
Abstract
The present invention provides a process for producing a conjugated diene-based polymer, comprising polymerizing a monomer component containing a conjugated diene compound and a silicon-containing vinyl compound using a polymerization initiator represented by the following formula (1) wherein, Rrepresents a hydrocarbylene group having 6 to 100 carbon atoms, Rand Rrepresent a hydrocarbyl group optionally having a substituent, or a trihydrocarbylsilyl group, or Rand Rare bonded to represent a hydrocarbylene group optionally having, as a hetero atom, at least one kind atom selected from the atomic group consisting of a silicon atom, a nitrogen atom and an oxygen atom.