Patent ID: 6875520

Claim:
A polymeric blend consisting essentially of, by weight, the total being 100%: 1 to less than 100% of a polyamide graft copolymer consisting essentially of a polyolefin backbone and on average at least one polyamide graft per said polyolefin backbone, in which copolymer: the grafts are attached to the backbone by the residues of an unsaturated monomer (X) having a functional group capable of reacting with an amine-terminated polyamide, the residues of the unsaturated monomer (X) are attached to the backbone by grafting or copolymerization from its double bond; and 99 to above 0% of a flexible polyolefin having an elastic flexural modulus of less than 150 MPa at 23° C. and a crystalline melting point between 60° C. and 100° C., said flexible polyolefin being an olefin homopolymer or a copolymer of at least one alpha-olefin and of at least one copolymerizable monomer being of a different alpha-olefin, an ester of an unsaturated carboxylic acid, a vinyl ester of a saturated carboxylic acid, an unsaturated epoxide, an unsaturated carboxylic acid or salt thereof or anhydride thereof, or a diene, said polymeric blend being characterized by an elastic modulus plateau above the melting point of the flexible polyolefin.