Resilient tires and wheels – Tires – resilient – Patches
Patent
1977-08-10
1980-05-06
Love, John J.
Resilient tires and wheels
Tires, resilient
Patches
152354R, 264326, 525155, B60C 512
Patent
active
042012619
ABSTRACT:
A vehicular pneumatic tire which, except for bead cores, is composed solely of an elastomeric blend strengthened by molecular orientation. The blend is a monoolefin copolymer rubber with a polyolefin and sufficient curing agents to effect vulcanization when the blend is subjected to heat and pressure. The process for making the tire comprises preforming an annulus of the elastomeric blend with bead cores adjacent the edges, the diameter of the preform being essentially that of the bead diameter of the completed tire and the axial distance between the beads less than the transverse arcuate dimension of the completed tire. The preform is cured and while still hot following curing, is stretched and shaped to final size and the generally toroidal form characteristic of conventional pneumatic tires with resulting biaxial molecular orientation, which orientation is retained in the tire by cooling it below the melting point of the polyolefin before removing the tire from the mold.
REFERENCES:
patent: 2645265 (1953-07-01), O'Neil
patent: 3195179 (1965-07-01), Laube
patent: 3208500 (1965-09-01), Knipp et al.
patent: 3852008 (1974-12-01), Shichman
patent: 3862106 (1975-01-01), Fischer
patent: 3901961 (1975-08-01), Gorter et al.
patent: 4006767 (1977-02-01), Ford
patent: 4059651 (1977-11-01), Smith, Jr.
Bartley Donald R.
Sabo Stephen C.
Sidles James
Love John J.
Powell Joe A.
The B. F. Goodrich Company
Underwood D. W.
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