Pneumatic tire with double layer sidewall

Details Pneumatic tire with double layer sidewall Pneumatic tire with double layer sidewall

1997-08-07

1999-11-30

Knable, Geoffrey L.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152525, 156123, 1561307, B60C 1300, B29D 3072

Patent

active

059924870

ABSTRACT:
A pneumatic tire comprises a carcass extending between bead portions through a tread portion and a pair of sidewall portions, and a sidewall rubber disposed axially outside the carcass in each sidewall portion, the sidewall rubber comprising an axially outer layer and and an axially inner layer, the outer layer disposed along the outside of the tire and containing powder rubber, the inner layer disposed along the axially inside of the outer layer and containing no powder rubber, the thickness of the outer layer being 3 to 50% of the total thickness of the sidewall rubber, and the outer layer composed of 100 parts by weight of a base rubber compound and 5 to 20 parts by weight of the powder rubber. The powder rubber has a maximum particle diameter of 30 to 80 meshes.

REFERENCES:
patent: 5036132 (1991-07-01), Coran
patent: 5267595 (1993-12-01), Lampe
patent: 5388627 (1995-02-01), Nakada
patent: 5628956 (1997-05-01), Theusner et al.
patent: 5714022 (1998-02-01), Nagao et al.

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