Pneumatic tire bead comprising high modulus fibers and polyureth

Details Pneumatic tire bead comprising high modulus fibers and polyureth Pneumatic tire bead comprising high modulus fibers and polyureth

1980-09-05

1982-03-23

Kimlin, Edward C.

Resilient tires and wheels

Tires, resilient

Patches

57241, 57258, 57902, 156136, B60C 1504, B29H 1732

Patent

active

043207910

ABSTRACT:
A pneumatic tire including bead members each comprising a slender bead element made of an organic or inorganic fiber other than metallic material and having a high modulus of at least 10.sup.5 kg/cm.sup.2, and a matrix phase made from a liquid thermosetting resin or liquid rubber cured before the bead member is incorporated into the tire to form a composite body together with the fiber. The matrix phase has a modulus of 50 to 10.sup.6 kg/cm.sup.2 after curing. The cured composite body of the bead element and the matrix phase has a stress of at least 200 kg when stretched 1%. The volume fraction of the bead element relative to the bead member is 0.2 to 0.8.

REFERENCES:
patent: 3237674 (1966-03-01), Budd et al.
patent: 3787224 (1974-01-01), Uffner
patent: 3942574 (1976-03-01), Bantz
patent: 4075048 (1978-02-01), Lupton et al.
patent: 4098316 (1978-07-01), Carvalho et al.

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