Reinforced polyurethane tires

Details Reinforced polyurethane tires Reinforced polyurethane tires

B - Operations, Transporting

60

C

18/151

B60C 1/00 (2006.01) C08G 18/10 (2006.01) C08G 18/76 (2006.01)

Patent

CA 1236261

ABSTRACT OF THE DISCLOSURE A reinforcing tire utilizing polyurea or poly- urethane formulations having low hysteresis. As well as the process for its production are provided herein. 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 substan- tial symmetry between the molecules. The reinforcement used is preferable an aromatic polyamide.

472757

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