Tires having a solid polyurethane core

Details Tires having a solid polyurethane core Tires having a solid polyurethane core

1976-02-27

1978-06-13

Cockeram, H.S.

Resilient tires and wheels

Tires, resilient

Cushion

260 775AP, 260 775AT, 264328, B60C 100, C08G 1814, C08G 1848, C08G 1876

Patent

active

040943534

ABSTRACT:
A process for puncture-proofing a pneumatic tire mounted on a wheel rim comprises filling the tire with a liquid reactant mixture of (a) at least one liquid polyoxypropylene polyether polyol and (b) a diphenylmethane diisocyanate chemically modified by known means to liquid form, the amounts of these reactants being such that the ratio of functional isocyanate groups to hydroxyl groups in the reactants is in the range 0.65 to 0.9, and cross-linking said mixture to form a resilient solid polyurethane material filling the tire, and a tire and wheel rim assembly so formed.

REFERENCES:
patent: 3336242 (1967-08-01), Hampson et al.
patent: 3356650 (1967-12-01), McElroy
patent: 3380967 (1968-04-01), Lowe et al.
patent: 3393243 (1968-07-01), Cuscurida
patent: 3605848 (1971-09-01), Lombardi et al.
patent: 3641093 (1972-02-01), Brooks et al.
patent: 3644457 (1972-02-01), Konig et al.
patent: 3866651 (1975-02-01), Gomberg
patent: 3866652 (1975-02-01), Ahmad
patent: 3907018 (1975-09-01), Fujikawa et al.
patent: 3907780 (1975-09-01), Hughes
patent: 3963681 (1976-06-01), Kaneko et al.

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