Provided are an RFID (radio frequency identification) module and a pneumatic tire in which the RFID module is embedded. An RFID module includes an IC (integrated circuit) substrate that stores data, an antenna that transmits and receives data, and a covering layer that covers the antenna. The covering layer contains calcium carbonate, and a relative dielectric constant of the covering layer is 7 or less.

Provided are a rubber composition for tires that provides improved silica dispersion and fuel economy while maintaining good hardness, and a pneumatic tire including the rubber composition. The present invention relates to a rubber composition for tires, containing a rubber component, silica, and a silica dispersing agent represented by the following formula (I). ##STR00001##

A coated wire includes a steel alloy coated with a coating comprising one or more amino alkoxy-modified silsesquioxane compounds selected from the group consisting of an amino alkoxy-modified silsesquioxane, an amino/mercaptan co-alkoxy-modified silsesquioxane, an amino/blocked mercaptan co-alkoxy-modified silsesquioxane, or a salt of one or more thereof. A rubber composition and a process for coating wire is also disclosed.

The invention relates to a pneumatic vehicle tire of a radial type of construction, comprising two bead regions with bead cores, a carcass insert running around the bead cores and comprising carcass turn-ups extending in the direction of the sidewalls, at least one rubber rim strip, which forms the outer surface of a bead region and consists of a first rubber rim strip part, consisting of a first rubber compound, and a second rubber rim strip part, consisting of a second rubber compound, wherein the first rubber rim strip part runs along the carcass turn-up and the second rubber rim strip part is designed such that, after pulling onto a rim, it is at least partially positioned between the bead cores and the rim, characterized in that the first rubber compound has a rebound elasticity at 20° C. according to DIN 53512 in the range of 20% and 80% and the rebound elasticity of the second rubber compound, likewise measured at 20° C. according to DIN 53512, differs from the rebound elasticity of the first rubber compound.

The invention also relates to a use of a rubber rim strip and to a vehicle wheel system comprising a pneumatic vehicle tire of a radial type of construction.

A tire sidewall comprising a vulcanized rubber and a high molecular weight wax.

The present invention is directed to compounds represented by the formula (I): wherein R.sub.1 comprises a hydrogen atom or an alkyl group having 1 to 2 carbon atoms. wherein R.sub.2 comprises an alkylene group, an arylene group, or a heterocyclic group. The three R.sub.2 groups may be the same or different. wherein A comprises an alkyl, an aryl, or an alkylaryl group. The three A groups may be the same or different.39

##STR00001##

A bead portion for incorporation in a pneumatic tire comprises bead wires and a rubber compound surrounding and/or insulating the bead wires. The rubber compound comprises, based on 100 parts per weight (phr) or rubber elastomer: (1) from 0 to 100 phr of at least one styrene-butadiene rubber (SBR); (2) from 0 to 100 phr of a polyisoprene rubber selected from the group consisting of natural rubber or synthetic polyisoprene; (3) from 80 to 150 phr of carbon black; (4) (4) from 0 to 50 phr silica; (5) from 0.5 to 5 phr of N, N′-m-phenylene bismaleimide; and (6) optionally no resin.

According to the process for preparing a vulcanized rubber composition of the invention comprising (a) a step of preparing a master batch comprising a butadiene rubber and silica, (b) a step of preparing a master batch comprising an isoprene rubber and silica, (c) a step of kneading the master batch obtained in (a) and the master batch obtained in (b), and (d) a step of vulcanizing a kneaded product obtained in (c), wherein the obtained vulcanized rubber composition has a BR phase and a IR phase which are incompatible with each other and comprises a predetermined amount of a terpene resin, a predetermined abundance ratio α of silica in the BR phase satisfies 0.3≦α≦0.7 (Relation 1), and a proportion β of the butadiene rubber satisfies 0.4≦β≦0.8 (Relation 2) it is possible to improve performance on ice, wet performance and abrasion resistance in good balance and to provide a vulcanized rubber composition having excellent performance on ice, wet performance and abrasion resistance, and a studless tire with a tread made using the same.

The invention aims to provide a rubber composition for outer layers of tires capable of reducing the generation of odors while maintaining or improving good elongation at break and processability, and a pneumatic tire using the same. Included is a rubber composition for outer layers of tires, including: a rubber component; a nonionic surfactant or polyethylene glycol; and a vulcanization accelerator represented by formula (1) below, the rubber component including a diene rubber in an amount of 70-100% by mass based on 100% by mass of the rubber component, the rubber composition including, per 100 parts by mass of the rubber component, 0.2-6.0 parts by mass of the nonionic surfactant or polyethylene glycol, 0.2-10 parts by mass of the vulcanization accelerator, and not more than 0.5 parts by mass of N-tert-butyl-2-benzothiazolylsulfenamide,

##STR00001##

wherein R.sup.11 represents a C2-C16 alkyl group, and R.sup.12 represents a C3-C16 branched alkyl group or a benzothiazolylsulfide group.

A rubber reinforcement adhesive comprising water and the reaction product of phloroglucinol and tris(hydroxymethyl)nitromethane.