Patent ID: 6995231
Filing Date: 2006-02-07
Classification: C08G,Y10T

Abstract:
1. An extruded thermoplastic polyurethane composition having a high crystalline content comprising the reaction product of: a polyol component, wherein said polyol component has a number average molecular weight of about 500 to about 10,000 per polyol; a polyisocyanate component; a chain extender component, wherein said chain extender component is an unbranched, unsubstituted, straight chain diol; a crystallization retarding component, wherein said crystallization retarding component is a diol which is branched, substituted or contains at least one heteroatom, or a combination thereof, wherein if said diol contains an aromatic group there is no trans—trans-isomers; and optionally, a polyurethane catalyst; wherein said composition has been extruded, and wherein said composition has a hard segment content of at least 20%.