Compagnie Generale Des Etablissements Michelin

Marcel Tornare

Antonio Delfino

Milan Fedurco

Use of a benzoxazine resin () for the bonding of a monofilament () made of glass-resin composite including glass filaments () embedded in a thermosetting polyester resin (), to a thermoplastic material (), notably polyester; process for adhering such a monofilament to the thermoplastic material (), including at least the following steps: —impregnating the monofilament () with a benzoxazine resin () in the liquid state; —after impregnation, heat-treating the monofilament () thus impregnated, so as to at least partly polymerize the benzoxazine resin (); —depositing, onto the monofilament () thus adhesively coated, the thermoplastic material () in the molten state; —after cooling, optionally heat-treating the monofilament thus coated (R-1, R-2) to totally polymerize the benzoxazine resin () on contact with the thermoplastic material ().

Bonding a glass-resin composite monofilament to a thermoplastic matrix

Multicomposite material (R, R) including at least one monofilament () made of glass-resin composite including glass filaments () embedded in a thermoset polyester resin (), characterized in that said monofilament is coated with at least one layer () of benzoxazine; use of such a material as reinforcer in finished articles or semi-finished products made of rubber; finished articles or semi-finished products made of rubber, such as vehicle tyres, reinforced with such a material.

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Clermont-Ferrand, France

Marcel Tornare