Patent ID: 8602504
Filing Date: 2013-12-10
Classification: C08G

Abstract:
1. A roller skate or roller blade wheel molded or shaped from a thermoset polyurethane elastomer comprising the reaction product of: (a) a urethane-modified isocyanate, wherein said urethane-modified isocyanate comprises the reaction product of an aromatic polyisocyanate comprising methylene diphenylisocyanate with a polycaprolactone polyol and/or a caprolactone ether copolymer polyol, wherein said polycaprolactone polyol or said caprolactone ether copolymer polyol each has a molecular weight in the range of from 1,000 to 10,000 Dalton, wherein the methylene diphenylisocyanate comprises at least 80 percent by weight of the 4,4′-methylene diphenylisocyanate isomer; (b) isocyanate reactive components comprising: