Title:
RUBBER COMPOSITION AND TIRE
Document Type and Number:
Japanese Patent JP2015221852
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rubber composition capable of providing vulcanized rubber excellent in fracture resistance and weather resistance, and a tire excellent in fracture resistance and weather resistance.SOLUTION: There is provided the rubber composition containing as rubber components, 30 mass% to 90 mass% of (i) a conjugated diene polymer and 10 mass% to 70 mass% of (ii) a multi block copolymer obtained by copolymerizing a conjugated diene compound and a non-conjugated olefin. The structure of the multi block copolymer is one of A-(B-A)and B-(A-B), (where A is a block part consisting of a monomer unit of the non-conjugated olefin and B is a block part consisting of a monomer unit of the conjugated diene compound and x is an integer of 1 or more), and the content of the non-conjugated olefin part is 50 mol% to 90 mol%.
Inventors:
HORIKAWA YASUO
KIMURA MADOKA
TARDIF OLIVIER
KIMURA MADOKA
TARDIF OLIVIER
Application Number:
JP2014106285A
Publication Date:
December 10, 2015
Filing Date:
May 22, 2014
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
C08L9/00; B60C1/00; C08F4/54; C08F4/606; C08F210/00; C08L53/00
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita
Kazuyuki Tomita