Title:
タイヤに使用できるゴム組成物用ブロックコポリマー
Document Type and Number:
Japanese Patent JP5113970
Kind Code:
B2
Abstract:
The present invention relates to block copolymers intended to constitute an elastomeric matrix of a cross-linkable rubber composition with reduced hysteresis, to such a rubber composition which is usable in the cross-linked state in a tire tread, to such a tire tread and to a tire comprising said tire tread which exhibits reduced rolling resistance. A copolymer with n blocks (n=2 or 3) according to the invention, each of said blocks comprising a diene elastomer having a molar content of units originating from conjugated dienes of greater than 15%, and one or each of said blocks which forms the chain end of said copolymer consisting of a polyisoprene, when n=2 or n=3 respectively, is such that the number-average molecular weight Mn1 of said or each polyisoprene end block is between about 2,500 and 20,000 g/mol, and such that the number-average molecular weight Mn2 of the block of said copolymer which is other than said or each polyisoprene end block is between about 80,000 g/mol and 350,000 g/mol.
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Inventors:
Robert Pierre
Fabro Jean Michel
Cavioch Jean Luc
Vourmière Bernard
Fabro Jean Michel
Cavioch Jean Luc
Vourmière Bernard
Application Number:
JP2001578522A
Publication Date:
January 09, 2013
Filing Date:
April 23, 2001
Export Citation:
Assignee:
Company Generale De Ettablissman Michelin
Michelin Le Cherche et Technic Anonym
Michelin Le Cherche et Technic Anonym
International Classes:
C08L53/00; B60C1/00; C08F297/02; C08K3/04; C08K3/36
Domestic Patent References:
JP6093059A | ||||
JP63086745A | ||||
JP5287033A |
Foreign References:
WO1999001490A1 |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda