摘要:
A tread 1 having a tread surface 3 onto which there opens at least one cavity 2, this cavity being bounded by a cavity wall 20 comprising a bottom wall 21 extended by a side wall 22 intersecting the tread surface to form at least one edge corner 31, this tread being, over at least part of the wall of the cavity 2, provided with a plurality of supporting strands 4, each supporting strand 4 comprising two ends of which one end 41 is attached to the cavity wall 20, this tread being characterized in that the supporting strands 4 each comprise at least one branching formed by the attachment of at least one branching strand 5.
摘要:
A tread 1 having a tread surface 3 onto which there opens at least one cavity 2, this cavity being bounded by a cavity wall 20 comprising a bottom wall 21 extended by a side wall 22 intersecting the tread surface to form at least one edge corner 31, this tread being, over at least part of the wall of the cavity 2, provided with a plurality of supporting strands 4, each supporting strand 4 comprising two ends of which one end 41 is attached to the cavity wall 20, this tread being characterized in that the supporting strands 4 each comprise at least one branching formed by the attachment of at least one branching strand 5.
摘要:
Tire including a crown, sidewalls extending the crown on each side, these sidewalls being connected to beads intended to be in contact with a mounting rim on which the tire is mounted, this tire having an internal wall delimiting, with the mounting rim, an internal cavity to allow the tire to be inflated. This tire includes, over at least part of its internal wall delimiting the internal cavity, a plurality of protrusions of elongate shape forming a dense coating, this tire being characterized in that these protrusions of elongate shape include a plurality of supporting fibers and a plurality of branching fibers, the branching fibers being attached to the supporting fibers, each supporting fiber having two ends, of which at least one is attached to the internal wall of the tire.
摘要:
Tire including a crown, sidewalls extending the crown on each side, these sidewalls being connected to beads intended to be in contact with a mounting rim on which the tire is mounted, this tire having an internal wall delimiting, with the mounting rim, an internal cavity to allow the tire to be inflated. This tire includes, over at least part of its internal wall delimiting the internal cavity, a plurality of protrusions of elongate shape forming a dense coating, this tire being characterized in that these protrusions of elongate shape include a plurality of supporting fibers and a plurality of branching fibers, the branching fibers being attached to the supporting fibers, each supporting fiber having two ends, of which at least one is attached to the internal wall of the tire.
摘要:
A vehicle tyre, usable in winter weather, includes a tread formed of a rubber composition that is heat-expandable when in an unvulcanized state, and expanded when in a vulcanized state. When unvulcanized, the composition includes a diene elastomer, such as natural rubber and/or a polybutadiene; more than 50 phr of a reinforcing filler, such as silica and/or carbon black; between 5 and 25 phr of a sodium- or potassium-including carbonate or hydrogen carbonate; and between 2 and 20 phr of a carboxylic acid having a melting point between 60° C. and 220° C., such as citric acid or stearic acid. A total content of the carboxylic acid and the carbonate or the hydrogen carbonate is greater than 10 phr. Presence of the carboxylic acid and the carbonate or the hydrogen carbonate makes it possible to greatly improve the tyre's grip on melting ice.
摘要:
A rubber composition usable as tread for a winter tire, having a high grip on melting ice, comprising at least one diene elastomer such as natural rubber and/or a polybutadiene, more than 30 phr of a liquid plasticizing agent, between 50 and 150 phr of a reinforcing filler such as silica and/or carbon black, and between 5 and 40 phr of magnesium sulphate microparticles.
摘要:
A rubber composition usable as tread for a winter tire, having a high grip on melting ice, comprising at least one diene elastomer such as natural rubber and/or a polybutadiene, more than 30 phr of a liquid plasticizing agent, between 50 and 150 phr of a reinforcing filler such as silica and/or carbon black, and between 5 and 40 phr of magnesium sulphate microparticles.
摘要:
A pneumatic tire tread capable of mitigating air column resonance and maintaining drainage performance while ensuring that the flexible fences are abraded to a similar extent to the tread portion is formed from a rubber composition, and has a tread portion in which a primary groove is formed and multiple flexible fences is formed in the primary groove; the flexible fences are formed from at least a rubber composition for fences that is different from the rubber composition for the tread portion; the rubber composition for fences of the flexible fences has an abrasion index that is more than or equal to twice the abrasion index of the rubber composition of the tread portion; and the rubber composition for fences comprises a filler composition that is based on (a) a diene elastomer, (b) a reinforcing filler selected from the group consisting of carbon black, inorganic fillers, organic fillers, and mixtures of said fillers, which has a BET specific surface area of less than 100 m2/g and is in an amount of between 20 phr and 120 phr, preferably between 30 phr and 100 phr; (c) a plasticizing system selected from the group consisting of liquid plasticizer, hydrocarbon resins and mixtures thereof; and (d) a vulcanizing agent.
摘要:
Radial tire for motor vehicle, comprising: a crown comprising a tread provided with at least one radially outer part intended to come into contact with the road; two beads, two sidewalls connecting the beads to the tread, a carcass reinforcement passing into the two sidewalls and anchored in the beads; the crown being reinforced by a crown reinforcement or belt placed circumferentially between the carcass reinforcement and the tread; a radially inner elastomer layer known as a “sublayer”, having a formulation different from the formulation of the radially outer elastomer layer, this sublayer being placed between the radially outer layer of the tread and the belt, wherein said sublayer comprises at least one diene elastomer and, as a high-density filler, more than 50 phr of particles having a density of greater than 4 g/cm3. This sublayer of specific formulation has the ability to reduce the rolling noise emitted by the tire without compromising its usage properties.
摘要翻译:用于机动车辆的径向轮胎,包括:冠部,其包括设置有至少一个旨在与道路接触的径向外部的胎面; 两个胎圈,将胎圈连接到胎面的两个侧壁,通过两个侧壁并固定在胎圈中的胎体加强筋; 冠部由在胎体增强件和胎面之间周向放置的胎冠增强件或带增强; 称为“子层”的径向内部弹性体层,其具有与径向外部弹性体层的配方不同的配方,该子层位于胎面的径向外层和带之间,其中所述子层包含至少一种二烯 作为高密度填料,超过50phr的密度大于4g / cm 3的颗粒。 该具体制剂的子层具有降低轮胎发出的滚动噪音而不损害其使用性能的能力。
摘要:
A rubber composition based on at least (i) an elastomer, (ii) a reinforcing filler and (iii) a thiouronium salt or an analogue of a thiouronium salt of the formula (I) below: A-S—Y—S-A (I) in which, A represents a group associated respectively with a molecule HX or an ion X—, X denoting a halogen atom and Z denoting Incorporating the thiouronium salt into the vulcanizable rubber composition makes it possible to substantially reduce the reversion rate of the vulcanized rubber composition.