Rubber compositions for pneumatic radial tires

Details Rubber compositions for pneumatic radial tires Rubber compositions for pneumatic radial tires

1987-12-21

1989-04-25

Lieberman, Allan M.

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...

525233, 525236, 525237, 524526, C08K 304, C08L 700, C08L 900, C08L 1502

Patent

active

048249009

ABSTRACT:
A rubber composition for use in pneumatic radial tires is disclosed which comprises specified amounts of polybutadiene rubber, natural rubber and/or polyisoprene rubber and carbonblack. The polybutadiene rubber has in the molecular chain at least one atomic group of the formula ##STR1## wherein R is OH or SH and the carbonblack has a selected iodine adsorption, whereby a radial tire is rendered highly resistant to flex, to crack growth and to external damage and extremely low in hysteresis loss and in rolling resistance.

REFERENCES:
patent: 4154277 (1979-05-01), Sato et al.
patent: 4193437 (1980-03-01), Powell
patent: 4433094 (1984-02-01), Ogawa et al.
patent: 4555547 (1985-11-01), Ueda et al.
patent: 4567225 (1986-01-01), Misawa et al.

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