Thermoplastic polyurethanes

Details Thermoplastic polyurethanes Thermoplastic polyurethanes

C - Chemistry, Metallurgy

08

G

C08G 71/04 (2006.01) A43B 1/14 (2006.01) C08G 18/40 (2006.01) C08G 18/66 (2006.01)

Patent

CA 2007802

ABSTRACT The present invention concerns a thermoplastic polyurethane material which is the reaction product of (1) a mixture of (a) 0.86 to 0.98 mole equivalent of a polyester diol having the molecular weight of from 650 to 5,000 and (b) 0.02 to 0.14 mole equivalent of a polyether diol having the molecular weight of from 2,000 to 5,000, and (2) a difunctional chain extender with (3) an organic diisocyanate. These polyurethane materials exhibit high resistance to severe abrasion forces while retaining desirable mechanical properties and are useful for the manufacture of shoe soles, ski boots, ski bindings, conveyor belts and screens used by mining industry and the like. 37,231-F

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