Thermoplastic vulcanizate with functional fillers

Details Thermoplastic vulcanizate with functional fillers Thermoplastic vulcanizate with functional fillers

C - Chemistry, Metallurgy

08

L

C08L 15/02 (2006.01) C08J 3/24 (2006.01) C08J 5/00 (2006.01)

Patent

CA 2509657

Processable rubber compositions contain a vulcanized fluorocarbon elastomer and functional filler dispersed in a matrix of a thermoplastic polymeric material. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles forming a non-continuous phase. The compositions are made by combining a curative, an uncured fluorocarbon elastomer, a functional filler and a thermoplastic material, and heating the mixture at a temperature and for a time sufficient to effect vulcanization of the elastomeric material; while mechanical energy is applied to mix the mixture during the heating step. Shaped articles such as seals, gaskets, O-rings, and hoses may be readily formed from the rubber compositions according to conventional thermoplastic processes such as blow molding, injection molding, and extension.

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