An object of the present invention is to provide: a rubber-fiber composite obtained by coating a core-sheath fiber with a rubber, in which adhesion between the rubber and the fiber is improved and which is thereby allowed to exhibit an improved durability as compared to conventional rubber-fiber composites when used as a reinforcing material; a rubber-resin composite; and a pneumatic tire using the same. The rubber-fiber composite is obtained by coating a reinforcing material with a rubber, which reinforcing material is composed of a core-sheath type composite fiber whose core portion is constituted by a high-melting-point resin having a melting point of 150 C. or higher and sheath portion is constituted by an olefin-based polymer having a melting point lower than that of the high-melting point resin.

During the process for the manufacture of a tire (20) assemblage (24) comprising:

a first woven or knitted fabric (26) comprising several first threadlike elements (64, 66),

a second woven or knitted fabric (28) comprising several second threadlike elements (68, 70),

a bearing structure comprising bearing elements (32) connecting the first and second woven or knitted fabric(s) (26, 28) together,

each first threadlike element (64, 66) is coated with a layer of a first adhesive composition and each second threadlike element (68, 70) is coated with a layer of a second adhesive composition,

each first and second coated threadlike element (64, 66, 68, 70) is then heat treated, so as to crosslink each first and second adhesive composition,

each first and second coated and heat-treated threadlike element (64, 66, 68, 70) is then assembled with the bearing elements (32), so as to form the assemblage (24).

A method for manufacturing a bonded reinforcing textile filamentary element (48) comprising a core and a layer of strands is disclosed. The textile filamentary element in the natural state is assembled. A textile filamentary element in the natural state or pre-bonded textile filamentary element is obtained. The filamentary element in the natural state or pre-bonded filamentary element is coated with an external layer of at least one heat-crosslinkable adhesive composition. The filamentary element in the natural state or pre-bonded filamentary element that is coated with the external layer is thermally treated so as to crosslink the adhesive composition in order to obtain the bonded filamentary element (48). The steps of coating with and of thermally treating the external layer of the filamentary element in the natural state or pre-bonded filamentary element are carried out such that, for an elongation equal to 30% of the elongation at break of the filamentary element in the natural state, the tangent modulus of the bonded reinforcing textile filamentary element (48) is increased compared with the tangent modulus of the filamentary element in the natural state.

A method for manufacturing a bonded reinforcing textile filamentary element (48) comprising a core and a layer of strands is disclosed. The textile filamentary element in the natural state is assembled. A textile filamentary element in the natural state or pre-bonded textile filamentary element is obtained. The filamentary element in the natural state or pre-bonded filamentary element is coated with an external layer of at least one heat-crosslinkable adhesive composition. The filamentary element in the natural state or pre-bonded filamentary element that is coated with the external layer is thermally treated so as to crosslink the adhesive composition in order to obtain the bonded filamentary element (48). The steps of coating with and of thermally treating the external layer of the filamentary element in the natural state or pre-bonded filamentary element are carried out such that, for an elongation equal to 30% of the elongation at break of the filamentary element in the natural state, the tangent modulus of the bonded reinforcing textile filamentary element (48) is increased compared with the tangent modulus of the filamentary element in the natural state.

Provided are: a tire including: a tire frame; and a reinforcing metal cord member that is wound at least on the outer circumference of the tire frame, wherein at least a portion of the reinforcing metal cord member is coated with a coating composition via an adhesion layer that contains a polyamide-based adhesive and has a melting point of from 160 C. to 200 C., the coating composition containing at least one thermoplastic material selected from polyamide-based thermoplastic resins having a melting point of from 160 C. to 240 C. and polyamide-based thermoplastic elastomers having a melting point of from 160 C. to 240 C.; and a method of producing the same.

The invention relates to a method for producing a tire, comprising the method step of coating a reinforcement element, in particular a reinforcement element that comprises textile fibers or textile filaments, with an elastomer matrix material, in particular uncured rubber, the reinforcement element, prior to being coated with the elastomer material, being provided with a sol-gel coating and the sol-gel coated reinforcement element being exposed to the action of a plasma, in particular a low-pressure plasma.

The invention relates to a method for producing a tire, comprising the method step of coating a reinforcement element, in particular a reinforcement element that comprises textile fibers or textile filaments, with an elastomer matrix material, in particular uncured rubber, the reinforcement element, prior to being coated with the elastomer material, being provided with a sol-gel coating and the sol-gel coated reinforcement element being exposed to the action of a plasma, in particular a low-pressure plasma.

The invention relates to a method for improving adhesion between a reinforcement element that comprises textile fibers or textile filaments and an elastomer matrix material, in particular uncured rubber, the reinforcement element being provided with a sol-gel coating and the sol-gel coated reinforcement element being exposed to the action of a plasma, in particular a low-pressure plasma.

The invention relates to a method for improving adhesion between a reinforcement element that comprises textile fibers or textile filaments and an elastomer matrix material, in particular uncured rubber, the reinforcement element being provided with a sol-gel coating and the sol-gel coated reinforcement element being exposed to the action of a plasma, in particular a low-pressure plasma.

A process for producing a vulcanizable composite material, including the steps of: a) producing or providing a textile strength member, b) treating the textile strength member with an aqueous dispersion for adhesive activation of the textile strength member and to obtain an adhesion-activated textile strength member, and c) introducing the adhesion-activated textile strength member into a crosslinkable rubberization mixture to obtain the vulcanizable composite material, wherein the aqueous dispersion is essentially free of free resorcinol and resorcinol precondensates, especially resorcinol-formaldehyde precondensates, and is free of free formaldehyde and formaldehyde-releasing substances, wherein the textile strength member in step a) has filaments, wherein the filaments contain one or more materials selected from the group consisting of a1) recycled polymers and a2) biobased polymers.