Rubber composition for a tire comprising a coupling agent...

Details Rubber composition for a tire comprising a coupling agent... Rubber composition for a tire comprising a coupling agent...

2007-07-10

2007-07-10

Jagannathan, Vasu (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C523S200000, C523S212000, C523S216000, C524S261000, C524S430000, C524S442000, C524S492000, C524S571000, C524S573000, C524S574000, C524S545000, C524S575500, C152S905000

Reexamination Certificate

active

10178725

ABSTRACT:
A sulphur-vulcanizable rubber composition usable for the manufacture of tires, based on at least:(A)—one diene elastomer selected from the group consisting of polybutadienes, natural rubber, synthetic polyisoprenes, butadiene copolymers, isoprene copolymers and mixtures of these elastomers (component A);(B)—a reinforcing white filler (component B);(C)—a coupling agent (white filler/diene elastomer) bearing at least one activated double ethylene bond (component C), with which there is associated:(D)—between 0.05 and 1 phr (parts by weight per hundred of elastomer) of a heat-triggered radical initiator (component D).The coupling agent is in particular an alkoxysilane of the family of alkoxy(C1–C4)-silylpropyls, in particular a trialkoxy(C1–C4)-silylpropyl methacrylate, in particular trimethoxy-silylpropyl methacrylate. Process for preparing such a rubber composition. Tire or semi-finished product, in particular tread, for a tire comprising a rubber composition according to the invention.

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