Rubber composition for tire treads

Details Rubber composition for tire treads Rubber composition for tire treads

1990-04-12

1991-11-19

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...

152209R, 152210, 152211, 524430, 524444, 524449, B60C 1114, C08K 320, C08K 326, C08L 900

Patent

active

050667025

ABSTRACT:
A tire tread rubber composition including a diene rubber and at least one of silica and carbon black, the composition being characterized in that the amount of extract (E) defined below satisfies the equation (1) and that a hard filler 0.01 to 5 mm in mean particle size and at least 100kg/mm.sup.2 in Knoop hardness is used in an amount of 3 to 80 parts by weight per 100 parts by weight of the component rubber of the composition subjected to extraction with acetone/chloroform after the vulcanization of the composition, wherein said equation is

REFERENCES:
patent: 4348311 (1982-09-01), Machurat et al.
patent: 4624977 (1986-11-01), Takeshita
patent: 4678830 (1987-07-01), Sato et al.
patent: 4820751 (1989-04-01), Takeshita et al.
patent: 4886850 (1989-12-01), Ogawa et al.
patent: 4918130 (1990-04-01), Kano et al.

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