Abstract: A method for preparing a thermoplastic elastomer is disclosed, said method comprising (I) mixing (A) a rheologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C.

Abstract: A method for preparing a thermoplastic elastomer is disclosed, said method comprising (I) mixing (A) a rheologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C., (B) a silicone base comprising (B′) 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl radicals in its molecule and (B″) 5 to 200 parts by weight of a reinforcing filler,  the weight ratio of said silicone base to said polyamide resin being greater than 35:65 to 85:15, (C) 0.

Abstract: An apparatus and method for coextruding substrate and coating materials having different temperature dependent properties, wherein one or more predetermined amounts of the coating are metered onto one or more predetermined surfaces of the substrate. A facefed coextrusion die, including a die plate for sizing and shaping the substrate and a feed block/metering tube assembly nested in the die plate for metering the coating onto the substrate, is mounted adjacent to an outlet opening of an extruder for the substrate. The metering tube is rotatably adjustably mounted in the feed block at one of its ends, and communicates with an extruder for the coating material at its other end. The metering tube has a pair of spaced gates formed therein which are generally alignable with a pair of spaced channels formed in the feed block to enable coating material to flow through the metering tube feed block and into contact with the substrate being extruded through the die plate.