Tire with tread made with liquid block copolymer

Details Tire with tread made with liquid block copolymer Tire with tread made with liquid block copolymer

1997-09-23

2000-06-06

Truong, Duc

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152450, 152451, 152525, 524501, 524502, 524516, 524881, 525243, 525244, 525247, 5253309, 5253319, B60C 100, B60C 902

Patent

active

060706341

ABSTRACT:
This invention describes the use of liquid block isoprene-butadiene copolymers of approximately 25,000 to 100,000 .sub.v molecular weight, and which comprises 10 to 90% by weight isoprene and 90 to 10% by weight butadiene. This material is added to a rubber compound that contains natural rubber, isoprene rubber, styrene butadiene rubber and butadiene rubber, or blends thereof, the sum of which is equal to or greater than 50 phr of the entire rubber content formulation. The liquid block copolymer is used at low levels, typically 1.5 phr to 15 phr. The invention also includes tires with at least one component composed of such rubber composition such as a tire tread.

REFERENCES:
patent: 5672639 (1997-09-01), Corvasce et al.

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