An RFID-tag coating rubber composition, comprises: a rubber component; an oil; and a tackifier. The RFID-tag coating rubber composition is excellent in both workability in a mixing and kneading process thereof and workability in a subsequent molding process of a tire.

An RFID-tag coating rubber composition, comprises: a rubber component; an oil; and a tackifier. The RFID-tag coating rubber composition is excellent in both workability in a mixing and kneading process thereof and workability in a subsequent molding process of a tire.

The present disclosure provides a coating rubber composition for tire reinforcing members having excellent thermal degradation resistance, including a rubber component, carbon black, a cobalt compound, and an amine-based antioxidant. The rubber component contains 60 to 100 mass % of an isoprene skeleton rubber. The content of the cobalt compound in cobalt equivalent is 0.21 parts by mass or more and 0.6 parts by mass or less per 100 parts by mass of the rubber component. The amine-based antioxidant is represented by the following general formula (1):

##STR00001##

where R.sup.1 and R.sup.2 are each independently a monovalent saturated hydrocarbon group. The content of the amine-based antioxidant is 0.1 parts by mass or more per 100 parts by mass of the rubber component.

The present disclosure provides a coating rubber composition for tire reinforcing members having excellent thermal degradation resistance, including a rubber component, carbon black, a cobalt compound, and an amine-based antioxidant. The rubber component contains 60 to 100 mass % of an isoprene skeleton rubber. The content of the cobalt compound in cobalt equivalent is 0.21 parts by mass or more and 0.6 parts by mass or less per 100 parts by mass of the rubber component. The amine-based antioxidant is represented by the following general formula (1):

##STR00001##

where R.sup.1 and R.sup.2 are each independently a monovalent saturated hydrocarbon group. The content of the amine-based antioxidant is 0.1 parts by mass or more per 100 parts by mass of the rubber component.

Provided is a pneumatic tire in which rolling resistance is reduced by gauge thinning of a belt, and a reduction in durability in an end of a belt layer and the deterioration of the moist heat resistive adhesiveness of the belt layer are suppressed. Each of the thickness of a first belt layer 5a and the thickness of a second belt layer 5b in the center section of the tire is 1.00 mm or less; when the shortest distance between the code 6b of the second belt layer 5b and the code 6a of the first belt layer 5a in the center section of the tire is set at a, and the shortest distance between the code 6b of the second belt layer 5b in an end and the code 6a of the first belt layer 5a is set at b, a and b satisfy a relationship represented by the following expression: 1.8 b/a4.0; and a coating rubber 7 that coats the first belt layer 5a and the second belt layer 5b includes: a rubber component including natural rubber; a resin component; and a sulfenamide vulcanization accelerator.

Provided is a pneumatic tire in which rolling resistance is reduced by gauge thinning of a belt, and a reduction in durability in an end of a belt layer and the deterioration of the moist heat resistive adhesiveness of the belt layer are suppressed. Each of the thickness of a first belt layer 5a and the thickness of a second belt layer 5b in the center section of the tire is 1.00 mm or less; when the shortest distance between the code 6b of the second belt layer 5b and the code 6a of the first belt layer 5a in the center section of the tire is set at a, and the shortest distance between the code 6b of the second belt layer 5b in an end and the code 6a of the first belt layer 5a is set at b, a and b satisfy a relationship represented by the following expression: 1.8 b/a4.0; and a coating rubber 7 that coats the first belt layer 5a and the second belt layer 5b includes: a rubber component including natural rubber; a resin component; and a sulfenamide vulcanization accelerator.

The disclosure provides transitorially erasable ink compositions, including an aliphatic hydrocarbon solvent, a rubber dissolved in the aliphatic hydrocarbon solvent, a hydrophilic pigment, and a surfactant. The disclosure further provides methods of preparing transitorially erasable ink compositions and writing instruments comprising transitorially erasable ink compositions. The disclosed erasable ink compositions write well, have strong color and erase easily transitorially, and demonstrate color stability.

The disclosure provides transitorially erasable ink compositions, including an aliphatic hydrocarbon solvent, a rubber dissolved in the aliphatic hydrocarbon solvent, a hydrophilic pigment, and a surfactant. The disclosure further provides methods of preparing transitorially erasable ink compositions and writing instruments comprising transitorially erasable ink compositions. The disclosed erasable ink compositions write well, have strong color and erase easily transitorially, and demonstrate color stability.

Ceramic black materials for use as, or in, colorants, inks, pigments, dyes, additives and formulations utilizing these black materials. Black ceramics having silicon, oxygen and carbon, and methods of making these ceramics; formulations utilizing these black ceramics; and devices, structures and apparatus that have or utilize these formulations. Plastics, paints, inks, coatings, formulations, liquids and adhesives containing ceramic black materials, preferably polymer derived black ceramic materials, and in particular polysilocarb polymer derived ceramic materials.

A composite article includes a substrate and a protective coating on at least a portion of the substrate. The protective coating includes reinforcement particles dispersed within an elastomeric matrix that is modified with a silicon-containing modifier selected from polysilsesquioxane, polyhedral oligomeric silicate, polyhedral oligomeric silsesquioxane (POSS), and combinations thereof. The reinforcement particles are selected from carbon, nickel metal, and combinations thereof. The protective coating is multi-layered and includes a distinct first layer and a distinct second layer that is contiguous with the distinct first layer such that each of the distinct first layer and the distinct second layer have an exposed outer surface.