High temperature polyurethane belt

Details High temperature polyurethane belt High temperature polyurethane belt

B - Operations, Transporting

29

C

B29C 67/24 (2006.01) B29D 29/00 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) F16G 1/28 (2006.01) F16G 5/20 (2006.01)

Patent

CA 2076969

A high and low temperature resistant endless belt (10) is disclosed. The belt (10) includes a main belt body portion (I2) pre- pared from elastomeric material and a tensile member (20) disposed in the body portion (12). A sheave contact portion (14) is formed integral with the main body portion (12). The elastomeric material has high and low temperature resistant properties. The elastomeric material is formed from the reaction product of an amine or hydroxy terminated polyol, an hydroxyl or amine termi- nated chain extender, and a polyisocyanate-containing composition adapted for rapid reaction with the extender when admixed therewith in a mold to retain flexibility and resiliency over heat age of the belt.

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