THERMOPLASTIC SILICONE ELASTOMERS FROM COMPATIBILIZED POLYAMIDE RESINS

摘要

A method for preparing a thermoplastic elastomer is disclosed, said method comprising:(I) mixing(A) a Theologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C.,(B) a silicone base comprising a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl groups in its molecule and optionally(B'') 5 to 200 parts by weight of a reinforcing filler, the weight ratio of said silicone base to said polyamide resin is from 35:65 to 85:15,(C) a compatibilizer selected from glycidyl ester polymers or organofunctional grafted polyolefins,(D) an organohydrido silicon compound which contains an average of at least 2 silicon-bonded hydrogen groups in its molecule and(E) a hydrosilation catalyst, components (D) and (E) being present in an amount sufficient to cure said diorganopolysiloxane (B'); and(II) dynamically curing said diorganopolysiloxane (B').