Patent ID: 7279521

Claim:
A method for modifying the properties of a nylon block copolymer comprising: (a) supplying a nylon block copolymer wherein said nylon block copolymer has a flexural modulus, a tensile modulus, and an unnotched Izod impact strength, wherein said nylon block copolymer comprises a polyamide segment and a polyether segment; (b) incorporating into said nylon block copolymer a nanoclay filler wherein said nanoclay filler is present at a level of between about 1.0-20.0 wt % and wherein said nanoclay is treated with a cation; and (c) increasing the values of said tensile modulus at least 980 percent and substantially maintaining the value of said unnotched Izod impact strength and/or increasing the value of said unnotched Izod impact strength, upon addition of said nanoclay filler.