Rubber composition for tire tread

Details Rubber composition for tire tread Rubber composition for tire tread

1979-07-09

1980-09-23

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

152100, 152209P, 152330R, 152374, 525232, 525236, 525237, 525241, C08L 700, C08L 4500

Patent

active

042241979

ABSTRACT:
A rubber composition for the tread of tire having reduced rolling resistance and increased wet skid resistance with the mechanical properties unimpaired, said rubber composition comprising 20 to 80% by weight of (I) essentially amorphous polybutadiene having a 1,2-bond units content of at least 70% and a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 10 to 100; 10 to 75% by weight of (II) polybutadiene rubber having a 1,2-bond units content of 20% or less and a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 20 to 130; and 3 to 35% by weight of (III) at least one rubber selected from styrene/butadiene copolymer rubber having a bound styrene content of 15 to 25% by weight, natural rubber, and polyisoprene rubber having a cis-1,4-bond units content of at least 90%.

REFERENCES:
patent: 3827991 (1974-08-01), Ando et al.
patent: 3978165 (1976-08-01), Stumpe, Jr. et al.

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