Halobutyl/epoxidized rubber matrices reinforced with siliceous filler materials
AssigneeRhone-Poulenc Chimie
InventorJean Machurat
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Abstract
Vulcanizable elastomeric compositions comprise a halobutyl rubber matrix, an adhesion-promoting amount of a epoxidized natural rubber and a reinforcing amount of a siliceous inorganic filler material; the vulcanizates produced therefrom are well suited, for example, as impermeable sealing layers/coatings for tire carcasses.
Claims16
The vulcanizable elastomeric composition of matter, comprising a halobutyl rubber matrix, an epoxidized natural rubber (ENR) and a reinforcing amount of siliceous inorganic filler material, wherein the composition contains from 5 to 15 parts by weight of said ENR per 100 parts by weight of the halobutyl rubber+ENR.
The vulcanizable elastomeric composition as defined by claim 4, comprising a natural siliceous filler material.
Dependencies are inferred from the claim text.