Process for preparing rubber compositions for tire treads

Details Process for preparing rubber compositions for tire treads Process for preparing rubber compositions for tire treads

1980-08-13

1982-08-03

Briggs, Sr., Wilbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

152330R, 525236, 524526, C08J 300

Patent

active

043426700

ABSTRACT:
A process for preparing a rubber composition for tire treads having resilience, wet skid resistance and wear resistance well balanced with each other, by mechanically mixing a specific amount in total of a halogenated butyl rubber, natural rubber or a polyisoprene rubber and a polybutadiene rubber with a specific amount of carbon black and with other additives in the first mixing step and then mechanically mixing the resulting mixture with the remainder of the rubber ingredients and carbon black in the second mixing step thereby to obtain the rubber composition.

REFERENCES:
patent: 3830274 (1974-08-01), Waser
Rubber Chemistry and Technology, vol. 47, pp. 48-56, (1974).
Chemical Abstracts, "Rubber Mixtures", Grasso; et al., 81-64987g, (1974).

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