Reinforced polyurethane tires

Resilient tires and wheels – Tires – resilient – Patches

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Details

152359, 152361R, 156117, 156125, 156245, 264263, 264279, 264326, 528 63, 528 64, 528 65, B60C 900, B60C 100

Patent

active

045194327

ABSTRACT:
This invention relates to reinforced tire utilizing polyurea or polyurethane formulations having low hysteresis. The polymer having low hysteresis is formed by reacting a prepolymer of an aromatic isocyanate and a high molecular weight difunctional polyol with a chain extender mix comprising an aromatic diamine and difunctional polyol. In these compositions the aromatic diisocyanate and aromatic diamine are selected so that there is substantial symmetry between the molecules. The reinforcement used is preferably an aromatic polyamide.

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