Self-adhesive composite reinforcement
AssigneesMichelin Recherche et Technique S.A., Compagnie Generale Des Etablissements Michelin
InventorsEmmanuel Custodero, Sebastien Rigo
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Abstract
Composite reinforcement (R-2) that is self-adhesive by curing to a diene rubber matrix, which can be used as reinforcing element for a tire, comprising: at least one reinforcing thread (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example 6,6 polyamide, covering said thread; and a second layer (22) comprising an unsaturated thermoplastic stirene elastomer, the glass transition temperature of which is negative, for example an SBS (stirene-butadiene-stirene) copolymer, covering the first layer (21). Process for manufacturing such a composite reinforcement and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcement.
Claims27
A composite reinforcement comprising:
- at least one reinforcing thread;
- a first layer of a thermoplastic polymer, the glass transition temperature of which is positive, covering said thread;
- and
- a second layer comprising an unsaturated thermoplastic styrene elastomer, the glass transition temperature of which is negative, covering the first layer;
- wherein the unsaturated thermoplastic styrene elastomer of the second layer is crosslinked.
Dependencies are inferred from the claim text.