Patent ID: 7786215

Claim:
Thermoplastic polymer comprising a thermoplastic polymer block and at least one polyalkylene oxide block, wherein: a) the thermoplastic polymer block comprises: a star-configured macromolecular polyamide chain comprising at least one multifunctional core and at least one thermoplastic polymer branch or segment linked to the core, the core comprising at least three identical reactive functional groups; and optionally a linear macromolecular chain, comprising a difunctional core and at least one thermoplastic polymer segment linked to the core; b) the polyalkylene oxide block or blocks are linked to at least some of the free end of the thermoplastic polymer block in the following manner: at least one free end of the star-configured macromolecular chain, selected from among the ends of the thermoplastic polymer branch or segment and the ends of the multifunctional core, is linked to a polyalkylene oxide block; and optionally at least one free end of the linear macromolecular chain, selected from among the ends of the thermoplastic polymer segment and the ends of the difunctional core, is linked to a polyalkylene oxide block wherein the polyalkylene oxide block linked to the at least some of the free end of the thermoplastic polymer block comprises a single reactive terminal functional group.