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Patent Searching and Data


Title:
RUBBER COMPOSITION BASED ON SILICA AND FUNCTIONALIZED DIENE POLYMER HAVING SILANOL-TERMINATED FUNCTIONAL GROUP
Document Type and Number:
Japanese Patent JP3693769
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To obtain a vulcanizable rubber composition useful in the production of tire covers and excellent in hysteresis properties in the state of a vulcanizate by mixing a functionalized diene polymer having a specified composition with silica being a reinforcing filler.
SOLUTION: This composition is prepared by mixing a functionalized diene polymer (e.g. butadiene/styrene copolymer) terminated with a silanol functional group or a polysiloxane block terminated with a silanol functional group with silica being a reinforcing filler. It many further contain a polybutadiene, a butadiene/isoprene copolymer, a natural rubber or the like. The filler may further contain a small amount of carbon black. The silica used is desirably a highly dispersible precipitated silica having a CTAB adsorption surface area of 450m2/g or below and a BET surface area of 450m2/g or below. This composition can give tires having low rolling resistance.


Inventors:
Jean Luke Cavio
Gerard Laboise
Application Number:
JP29383596A
Publication Date:
September 07, 2005
Filing Date:
November 06, 1996
Export Citation:
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Assignee:
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN-MICHELIN & CONPAGNIE
International Classes:
B60C1/00; C08C19/42; C08C19/44; C08F8/42; C08G77/442; C08K3/00; C08K3/04; C08K3/36; C08L15/00; C08L19/00; C08L83/10; (IPC1-7): C08L15/00; B60C1/00; C08C19/44; C08K3/04; C08K3/36; C08L83/10
Foreign References:
US4618650
WO1988005448A1
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo