Rubber composition for tire tread

Details Rubber composition for tire tread Rubber composition for tire tread

1988-05-31

1990-07-17

Lilling, Herbert J.

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...

524495, 524505, 524526, 524575, 525196, 525237, 5253329, C08K 304, C08L 906, C08L 1500, B60C 100

Patent

active

049421972

ABSTRACT:
Rubber compositions for tire treads well balanced in the performances of rolling registance, sliding coefficient of friction on wet road surfaces and wear resistance and which are superior in the processability and workability, including at least 20 parts by weight of styrene-butadiene random copolymer prepared by using an organic lithium as a polymerization catalyst and coupled with a mono- or difunctional tin compound as well as a tri- or more functional compound and having a tin content of 300 ppm or more which is bonded to the polymer and further include a carbon black having the value of N.sub.2 SA/IA of 1.1 or more.

REFERENCES:
patent: 4383085 (1983-05-01), Fujimaki et al.
patent: 4548980 (1985-10-01), Nagata et al.
patent: 4550135 (1985-10-01), Iwama et al.
patent: 4732927 (1988-03-01), Ida et al.
patent: 4742124 (1988-05-01), Tsutsumi et al.
P. Luijk, "The Versatility of the Lithium-Alkyl-Initiated Copolymerisation of Styrene and Butadiene", Kautschuk+Gummi.Kunststoffe 34, Jahrgang, Nr. 3/1981, pp. 191-195.

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