Patent ID: 6476117
Filing Date: 2002-11-05
Classification: C08F

Abstract:
A thermoplastic elastomer comprising a multi-block polymer including hard segments and soft segments, said hard segments comprising polymeric chains of a crystalline polyalkylene and said soft segments comprising a near gelation polymer, wherein said hard segments and said soft segments are connected via covalent bonds, said near-gelation polymer having at least one functional group capable of being linked to a functional group on the polyalkylene and being the reaction product of a prepolymer and a crosslinking agent, said near-gelation polymer having a physical state relative to its gelation point defined by 0&lE;|(râˆ’rg)/rg|&lE;0.5 where r is the weight ratio of said crosslinking agent to said prepolymer and rg is the weight ratio of said crosslinking agent to said prepolymer at the gelation point.