| abstract |
This disclosure relates to a vulcanizable layered composition comprising at least two layers and at least one tie layer. The first of the two layers comprises a fluid permeation prevention layer and the second comprises at least one high diene rubber. The tie layer comprises, a mixture, in parts by weight relative to 100 weight parts of rubber of : (1) 10 to 70 parts by weight of epoxidized natural rubber; (2) 30 to 90 parts by weight of at least one high diene elastomer; (3) 20 to 90 parts by weight of at least one filler; (4) 1 to 20 parts by weight of at least one tackifier,- and (5) at least 0.2 to 15 parts by weight of curing system for the elastomers and rubbers; The fluid permeation prevention layer comprises : (A) at least one thermoplastic engineering resin component; and (B) at least one elastomer component, wherein (B) is dispersed in a vulcanized or partially vulcanized state, as a discontinuous phase, in a matrix of component (A). |