Patent ID: 6881790

Claim:
A polymer based composition for fabricating into articles comprising: a low modulus radio frequency susceptible polymer having a modulus less than 30,000 psi, and in an amount by weight of 37-60% of the composition, the susceptible polymer having a dielectric loss greater than 0.05 at 1-60 MHz and ambient temperature to 250° C., the susceptible polymer being selected from the group of ethylene copolymers having 50-85% by weight ethylene content with a comonomer selected from the group consisting of acrylic acid, methacrylic acid, ester derivatives of acrylic acid with alcohols having 1-10 carbons, ester derivatives of methacrylic acid with alcohols having 1-10 carbons, and vinyl acetate; a temperature resistant polymer in an amount by weight from 30-60% of the composition and selected from the group consisting of polyamides, polyimides, polyurethanes, polypropylene, and polymethylpentene; a compatibilizing polymer in an amount from 5-30% by weight of the composition, the compatibilizing polymer conferring compatibility between the susceptible polymer and the temperature resistant polymer, the compatibilizing polymer being a styrenic block copolymer with hydrocarbon soft segments; and wherein the composition has a mechanical modulus of less than 40,000 psi when measured according to ASTM D-882.