| abstract |
A thermoplastic elastomer composition is possible which has low coefficient friction, reduced stickiness and good structural integrity. A halobutyl rubber is cured by dynamic vulcanization in the presence of sufficient thermoplastic material to function as a continuous phase for the vulcanization. Thereafter, up to 25 parts based on 100 parts of the rubber of an uncured organopolysiloxane grafted EPDM polymer are admixed to form the final moldable product, resulting in a mixture which has good structural integrity and a smooth finished surface. |