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Title:
ISOPRENE OLIGOMER, POLYISOPRENE, PRODUCTION METHOD THEREOF, RUBBER COMPOSITION, AND PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2015223124
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide isoprene oligomer and polyisoprene in which an only terminal part of the molecule is modified substantially, a rubber composition comprising the isoprene oligomer and/or the polyisoprene, and a pneumatic tire the rubber composition of which is used in each member such as a tread and a side wall.SOLUTION: The present invention provides isoprene oligomer in which at least one atom or atomic group included in I-I part of the following formula (1) is substituted with a sulfur atom or an atomic group containing a sulfur atom, and polyisoprene having the isoprene oligomer at the terminal part of a polymer chain. In the formula (1), n is an integer of 1 to 10, m is an integer of 1 to 30, and Y is a hydroxyl group, a formyl group, a carboxyl group, an ester group, a carbonyl group or a diphosphate group.

Inventors:
INOUE YUKINO
OTANI NORIMASA
Application Number:
JP2014110347A
Publication Date:
December 14, 2015
Filing Date:
May 28, 2014
Export Citation:
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Assignee:
SUMITOMO RUBBER IND LTD
YAMAGATA UNIV
International Classes:
C12P11/00; B60C1/00; C07D339/02; C08F36/08; C08F36/14; C08L21/00; C12N15/09
Domestic Patent References:
JP2012036360A2012-02-23
JP2006524048A2006-10-26
JP2004024275A2004-01-29
Foreign References:
WO2014042027A12014-03-20
WO2012008298A12012-01-19
Attorney, Agent or Firm:
特許業務法人 安富国際特許事務所