Sumitomo Rubber Industries Patente

Provided are surface-modified metals such as metal medical devices e.g., guide wires, syringe needles, and metal tubes in medical devices or equipment, and methods for modifying a metal surface, wherein a lubricant layer is firmly bonded to the surface to impart lubricity to the surface and, further, improve the durability of the lubricant layer on the surface, thereby suppressing deterioration of the sliding properties. Included is a surface-modified metal having a surface at least partially treated by polymerization of a monomer in the presence of a thermal polymerization initiator.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

To satisfactorily improve the durability and the steering stability of a pneumatic tire, a pneumatic tire 1 has a designated orientation when mounted to a vehicle. A bead 4 is configured from an outer bead 4A and an inner bead 4B. When the tire is mounted to a vehicle, the outer bead 4A is located outward of the vehicle from a tire equator C, and the inner bead 4B is located inward of the vehicle from the tire equator C. A rubber apex 14 includes second outer apex portion 16b and a second inner apex portion 17b provided at the outer bead 4A and the inner bead 4B respectively. The height of the second outer apex portion 16b in the radial direction of the tire is greater than the height of the second inner apex portion 17b in the radial direction of the tire in the tire meridian cross section which includes the rotation axis of a tire in a normal state.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Provided are a rubber composition for tires which achieves both abrasion resistance and processability while maintaining fuel economy, and a pneumatic tire including the rubber composition. A rubber composition for tires, containing an organosilicon compound represented by the average compositional formula (I) below having a ratio of the number of sulfur atoms to the number of silicon atoms of 1.0 to 1.5, wherein x represents the average number of sulfur atoms; m represents an integer of 6 to 12; and R 1 to R 6 are the same or different and each represent a C1-C6 alkyl or alkoxy group, at least one of R 1 to R 3 and at least one of R 4 to R 6 are the alkoxy groups, and two or more of the alkyl or alkoxy groups for R 1 to R 6 may be joined to form a ring.

Zusammenfassung wird geladen …

Provided is a vector capable of improving polyisoprenoid production through the introduction of the vector into a plant using gene recombination techniques. A vector comprising: a promoter of a gene encoding Rubber Elongation Factor; and a gene encoding a protein involved in polyisoprenoid biosynthesis, the gene being functionally linked to the promoter.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

A two-wheeled vehicle tire 2 includes: a belt 14 located inward of a tread 4 in a radial direction; and a rubber layer 16 located inward of the tread 4 in the radial direction. The belt 14 includes a first layer 14a and a second layer 14b located outward of the first layer 14a in the radial direction. Each of the first layer 14a and the second layer 14b includes a large number of cords 32 aligned with each other, and a topping rubber 34. The rubber layer 16 is located between the first layer 14a and the second layer 14b. A thickness of the rubber layer 16 on an equator plane is larger than a thickness of the rubber layer 16 at each outer end, in an axial direction, of the rubber layer 16.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

The purpose of the present invention is to provide a rubber composition for a base tread being excellent in fuel efficiency. In the rubber composition for a base tread, a dynamic elastic modulus E* (MPa) and a loss tangent tanδ which are measured at a temperature of 70°C, an initial strain of 10% and a dynamic strain of 2% satisfy the following general formulae (1) to (3), and a strength at break TB (MPa) and an elongation at break EB (%) which are measured according to JIS K6251 satisfy the following general formulae (4) and (5). E * / tanδ ≥ 25 <img class="EMIRef" id="504468756-ia01" /> 2.0 ≤ E * ≤ 8.0 <img class="EMIRef" id="504468756-ia02" /> tanδ ≤ 0.08 <img class="EMIRef" id="504468756-ia03" /> EB ≥ 350 <img class="EMIRef" id="504468756-ia04" /> TB × EB ≥ 8500 <img class="EMIRef" id="504468756-ia05" />

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

A medical rubber part according to the present invention comprises a rubber composition including at least one type of rubber component, selected from the group consisting of butyl rubbers and halogenated butyl rubbers, and not less than 3 parts by mass and not more than 50 parts by mass, with respect to 100 parts by mass of the total amount of the rubber component, of silica with a BET specific surface area of not less than 1m 2 /g and not more than 60m 2 /g and a bulk specific gravity of not less than 30g/liter and not more than 130g/liter.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Provided is a vector capable of improving polyisoprenoid production through the introduction of the vector into a plant using gene recombination techniques. A vector comprising: a promoter of a gene encoding Small Rubber Particle Protein; and a gene encoding a protein involved in polyisoprenoid biosynthesis, the gene being functionally linked to the promoter.