A reinforcing element, having a cross section with a flattened overall shape and extending in a main direction and comprising at least one lateral edge made of a polymeric composition comprising a thermoplastic polymer, the lateral edge extending in a general direction substantially parallel to the main direction is treated by heating at least a part of the lateral edge, during which at least a part of the lateral edge is subjected to a plasma flow so as to raise the temperature of the part of the lateral edge above the melting point of the thermoplastic polymer.

The invention relates to a polyamide cord for use as carcass strength member in a pneumatic vehicle tire, wherein the polyamide cord has a residual shrinkage in the range from 0% to 2% and a shrinkage at 180 C. in the range from 0% to 4.5%, where the residual shrinkage of the polyamide cord and the shrinkage at 180 C. of the polyamide cord are determined to ASTM D 855. The invention also relates to a pneumatic vehicle tire comprising one or more polyamide cords and to a process for producing one or more polyamide cords, to a process for producing a rubberized reinforcement ply and to a process for producing a pneumatic vehicle tire.

The present invention provides a thin layer capply and a low-weight tire to which the thin layer capply is applied. The thin layer capply of the present invention has effects of reducing a rolling resistance of the tire through a weight reduction and improving fuel efficiency of a vehicle in which the tires are mounted while maintaining stiffness required for the tire, by forming the cord spinning layer in a thin tape form by spinning and depositing a plurality of cord strands, rather than twisting a plurality of cord strands to form the capply cord.

A tire comprises a tread which comprises a plurality of tread pattern elements (1) delimited by cut-outs (3, 4), the tread pattern elements respectively comprising at least one lateral face (13, 14, 15, 16), and a first rubber composition (FC) at least partially covered on at least one of the lateral face (13, 14, 15, 16) with a layer of a second rubber composition (SC) based on an elastomer matrix comprising more than 55 phr and up to 100 phr of a first diene elastomer having a glass transition temperature of less than ?25? C. and 0 to less than 45 phr of a second diene elastomer, a reinforcing filler comprising more than 100 phr of a reinforcing inorganic filler, and more than 45 phr of a plasticizing agent predominately comprising at least one hydrocarbon resin having a glass transition temperature of more than 20? C.

A method for making rubber portions comprising tyre metallic reinforcing plies. This method comprises an incorporation step wherein metallic cords which constitute the plies are arranged between two skim layers and a treatment step for the metallic cords, that precedes the incorporation step and wherein the metallic cords are wetted with a diene elastomeric polymer with a viscosity of between 3 and 10 Pa.Math.s at room temperature.

A tire having a rubber member formed by winding a ribbon rubber in uninterrupted fashion about a rotational axis of the tire. The rubber member has a parallel portion at which the ribbon rubber is parallel to a tire circumferential direction at an end toward an exterior in a tire width direction, and an inclined portion at which the ribbon rubber is inclined with respect to the tire circumferential direction in such fashion as to cause the ribbon rubber to be directed from the parallel portion toward an interior in the tire width direction. The ribbon rubber from which the parallel portion is formed is wound in the tire circumferential direction for a wrap angle of not 360 but N (N=210 to 300).

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.

A pneumatic tire includes: an annular structure that is cylindrical and metal where at least an outer side surface in the radial direction is a rough surface; a tread rubber layer that will become a tread portion provided along a circumferential direction of the annular structure on an outer side of the annular structure; and a carcass portion including fibers covered with rubber, provided on at least both sides in a direction parallel to a center axis of the cylindrical structure including the annular structure and the tread rubber layer.

In accordance with the invention a wire coat rubber composition for a tire comprises from 70 phr to 100 phr of cis 1,4-polyisoprene rubber, from 0 phr to 30 phr of solution styrene butadiene rubber, from 65 phr to 95 phr pre-silanized precipitated silica, from 0.1 phr to 5 phr of a cobalt salt, up to 15 phr carbon black, up to 10 phr of a resin, and up to 10 phr oil. Further the present invention is directed to a tire comprising such a wire coat composition.

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.