The present invention provides a tire improved in the run flat durability, having at least one member selected from the group consisting of a side reinforcing rubber layer and a bead filler using a rubber composition having a tensile stress at 50% elongation at 180 C. (M50) of 6.2 MPa or more as a vulcanized rubber physical property.

The present invention provides a tire improved in the run flat durability, having at least one member selected from the group consisting of a side reinforcing rubber layer and a bead filler using a rubber composition comprising a rubber component containing 20% by mass or more of a modified conjugated diene based polymer, satisfying Expression (1) in terms of the elongation X under a stress of 6.5 MPa at 180 C. and the elongation Y under a stress of 6.5 MPa at 25 C. after vulcanization.
1.00X/Y1.15(1)

The present invention provides: a rubber composition prepared by mixing 60 to 100 parts by mass of a filler (B), 0.9 to 2.4 parts by mass of a phenol resin (C), 0.07 to 0.2 parts by mass of a methylene donor (D), 1.5 to 2.1 parts by mass of a thiuram based vulcanization accelerating agent (E), and 3.2 to 4.5 parts by mass of a sulfenamide based vulcanization accelerating agent (F), based on 100 parts by mass of the rubber component comprising 20 to 80% by mass of a modified conjugated diene based polymer (A), allowing the ride comfort in normal running to be satisfied in parallel with improvement in the run flat durability (durability in run flat running); and a tire comprising at least one member selected from the group consisting of a side reinforcing rubber layer and a bead filler using the rubber composition.

Breaking energy test performance of lightweight tyres that have a good performance in terms of rolling resistance is increased. These tyres comprise two thin and lightened working layers (41, 42) comprising metal reinforcing elements (411, 421) having a linear breaking strength Rct at most equal to 400 daN/cm, and a single carcass layer (6) radially on the inside of the working layers. In order to successfully undergo the breaking energy test, this carcass layer comprises textile reinforcing elements that have an elongation at break Acc at least equal to 15%, the carcass layer having a linear breaking strength Rcc at least equal to 0.55 times the linear breaking strength of the working layers.

The present invention is directed to a pneumatic tire comprising a textile cord reinforced rubber component, the rubber component comprising a textile cord contacting a rubber composition, the rubber composition comprising: from 20 to 45 phr of a solution polymerized styrene-butadiene rubber having a bound styrene content ranging from 5 to 25 percent by weight, a vinyl-1,2 content ranging from 5 to 40 weight percent based on the butadiene content, and a Tg ranging from 85 to 50 C.; from 55 to 80 phr of a polyisoprene rubber selected from the group consisting of natural rubber and synthetic polyisoprene rubber; from 20 to 60 phr of a filler selected from carbon black, silica, and prehydrophobated silica; from 1 to 10 phr of a resin selected from the group consisting of carbamic resins, alkyl phenol formaldehyde resins, and phenol formaldehyde resins; and from 0.5 to 5 phr of a methylene donor.

A radial tire with a lightened belt structure (10) comprises a multilayer composite laminate (10a, 10b, 10c) of specific construction, with a first layer (10a) of rubber (C1) reinforced with preferably weakly heat-shrinkable circumferential textile multifilament fibres (110) twisted individually on themselves with a torsion T greater than 100 turns per meter, for example, made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers (10b, 10c) of rubber (C2, C3, respectively) reinforced with monofilaments (120, 130) of high tensile steel. The first reinforcers have an envelope diameter between 0.30 mm and 0.60 mm and a density, measured in the axial direction Y, between 90 and 150 threads/dm, and the second and third reinforcers each have a diameter between 0.20 mm and 0.50 mm and a density, measured in the axial direction Y, between 100 and 180 threads/dm.

Tire comprising at least one working layer (41). The radially outermost one thereof comprises at least one undulation (412) radially on the outside of the points of the working layer (41) that are in line with the centre of the bottom face (243) of the major groove (24) closest to undulation (412). The undulation (412) of the radially outermost working layer (41) is such that, over at least 10% of the radially outer surface (ROS) of the said working layer (41), the radial distance (do) between the radially outer surface (ROS) and the tread surface (21) is at least 1 mm less than the radial distance (dc) between the radially outer surface (ROS) and the tread surface (21), which is the distance in line with the centre of the bottom face (243) of the major groove (24) closest to the said undulation (412).

The present invention relates to an aqueous, solids-containing dipping bath composition for treating reinforcing inserts for rubber products comprising the following components or consisting of these components, (A) at least one blocked MDI mixture, the MDI mixture comprising MDI oligomers of formula (I), n being a whole number from 1 to 8, and MDI monomers; (B) at least one latex; (C) at least one compound selected from the group consisting of polyacrylates, lignin derivatives and mixtures hereof; and (D) possibly at least one additive; the dipping bath composition being essentially free of epoxides, and the dipping bath composition being essentially free of resorcinol, formaldehyde and the reaction products thereof.

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One embodiment of the present invention provides an adhesive composition including, on the basis of the total weight thereof, 0.5 to 4.0% by weight of an epoxy compound, 1.0 to 8.0% by weight of an isocyanate compound, 1.7 to 22% by weight of a rubber latex, 1.0 to 8.0% by weight of a polyurethane dispersion (PUD) resin, 0.1 to 2.0% by weight of an amine compound, and 69 to 92% by weight of a solvent, wherein the epoxy compound and the isocyanate compound have a weight ratio of 1:1 to 1:10.

The reinforcing structure for a tire is in the form of a stratified assembly formed of two layers of reinforcing strips of completely connected cross section, and flattened in shape. According to the method, the strips of each layer are laid side by side in a main direction of laying. The strips of the first layer are spaced apart by a distance that is less than the width of the strips of the second layer and in such a way that the edges of the strips of the first layer overlap the edges of the strips of the second layer. The two layers of strips are separated by a layer of uncoupling rubber.