Truck tire with cap/base construction tread

Details Truck tire with cap/base construction tread Truck tire with cap/base construction tread

1996-03-07

1998-12-01

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 100, B60C 1100

Patent

active

058432493

ABSTRACT:
The invention relates to a truck or bus tire with a rubber tread of cap/base construction where the tread cap is composed of an emulsion polymerization prepared styrene/butadiene copolymer elastomer with a relatively random styrene content (E-SBR-A). Such E-SBR-A, in its uncured state, also has a relatively low Tg. In one aspect, the tire tread's tread cap may also be a blend of elastomers such as cis 1,4-polybutadiene and/or natural rubber together with said E-SBR-A and wherein the tread base elastomer is composed primarily of natural cis 1,4-polyisoprene rubber. In another aspect of the invention, said tread cap has a tread design composed of at least three circumferential continuous ribs designed to be road contacting, said ribs independently separated by continuous, circumferential grooves.

REFERENCES:
patent: 3157218 (1964-11-01), Brown
patent: 3830275 (1974-08-01), Russell
patent: 4381810 (1983-05-01), Cady et al.
patent: 4417027 (1983-11-01), Kan et al.
patent: 4527606 (1985-07-01), Kita et al.
patent: 4635693 (1987-01-01), Ahagon et al.
patent: 4908401 (1990-03-01), Ohara et al.
patent: 5385969 (1995-01-01), Saito et al.
patent: 5397616 (1995-03-01), Aoki
patent: 5504140 (1996-04-01), Zanzig et al.
patent: 5534578 (1996-07-01), Wideman et al.

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