摘要:
A block copolymer (1) containing a polymer block A of a conjugated diene and a random copolymer block B of a conjugated diene and aromatic vinyl compound, (2) having a weight ratio (A:B) of the polymer block A and the copolymer block B of 5:95 to 95:5, (3) having a bound aromatic vinyl compound content in the copolymer block B of 1 to 50% by weight, (4) having a weight average molecular weight (Mw) of 100,000 to 5,000,000, and (5) having at least two transition points measured by differential scanning calorimetry in the range of −150° C. to +150° C., a method of production of the same, and a rubber composition and pneumatic tire containing the same.
摘要:
A rubber composition for a tire tread comprising (1) (i) 60 to 90 parts by weight of natural rubber and/or polyisoprene rubber, (ii) 10 to 35 parts by weight of a high cis polybutadiene rubber having a melt viscosity of 90 to 150 cps and a cis content of 90% by weight or more, and (iii) 0.5 to 5 parts by weight of an A-B type block copolymer composed of (A) a poly(styrene-butadiene) or polybutadiene block having a styrene content (St) of 0 to 35% by weight and a butadiene content (Bd) of 65 to 100% by weight, having a 1,2-vinyl bond content (Vn) of 5 to 80 mol %, and satisfying the relationship of Vn≦2St+30 and (B) a polyisoprene block having a cis content of at least 70% by weight, in a ratio by weight (A)/(B) of 20 to 80/80 to 20, and (2) 40 to 60 parts by weight of carbon black having an N2SA of 125 m2/g or more.
摘要:
A block copolymer (1) containing a polymer block A of a conjugated diene and a random copolymer block B of a conjugated diene and aromatic vinyl compound, (2) having a weight ratio (A:B) of the polymer block A and the copolymer block B of 5:95 to 95:5, (3) having a bound aromatic vinyl compound content in the copolymer block B of 1 to 50% by weight, (4) having a weight average molecular weight (Mw) of 100,000 to 5,000,000, and (5) having at least two transition points measured by differential scanning calorimetry in the range of −150° C. to +150° C., a method of production of the same, and a rubber composition and pneumatic tire containing the same.
摘要:
A rubber composition for a tire tread comprising 100 parts by weight of a diene rubber and 35 to 60 parts by weight of a carbon black having a nitrogen specific surface area (N.sub.2 SA) of 120-150 m.sup.2 /g, a 24M4DBP of 95-110 ml/100 g, an N.sub.2 SA/IA of 0.95-1.05, a .DELTA.Dst of less than 70 nm, a Tint of more than 130, and a toluene discoloration (T%) of not less than 70% but less than 80%.
摘要翻译:一种用于轮胎胎面的橡胶组合物,其包含100重量份的二烯橡胶和35至60重量份的氮比表面积(N 2 SA)为120-150米2 /克的炭黑,95-110的24M4DBP ml / 100g,0.95-1.05的N 2 SA / IA,小于70nm的DELTA Dst,大于130的Tint,以及不少于70%但小于80%的甲苯变色(T%)。
摘要:
A power receiving device includes: a power receiving unit receiving electric power from an external power transmitting unit contactlessly; a first coil; a first shielding wall surrounding the first coil; a first device; a first shielding casing having the first device accommodated therein, the first shielding casing being also disposed inside the first shielding wall; and a first wiring connected to the first device and extending from inside the first shielding casing to outside the first shielding casing, and also pulled outside the first shielding wall, the first shielding casing having an external surface including a first opposite portion closer to the first shielding wall than the first coil, the first shielding wall having a first region opposite to the first opposite portion, the first region having a first hole, the first wiring being pulled outside the first shielding wall through the first hole.
摘要:
Power reception equipment (20) is provided with: a secondary side resonance coil (21b) which receives power from a primary side resonance coil (13b) of power supply equipment (10); and a rectifier (23) which rectifies the received power. The power reception equipment is further provided with: a secondary matching unit (22) which is provided between the secondary side resonance coil (21b) and the rectifier (23); a charger (24) to which rectified electric power is supplied; a power storage device (25) which is connected to the charger; and a control unit (26) which adjusts the secondary matching unit when the power storage device is being charged. The control unit stores, as data on a storage device (33), the relationship between the charge power from the power supply equipment during the power ascension phase and the matching status of the secondary matching unit (22) when charging. During the phase in which the power output from the supply equipment is reduced, the control unit adjusts, on the basis of the data stored in the storage device during the power ascension phase, the secondary matching unit (22) so as to reach a suitable status corresponding to the charge power.
摘要:
A non-contact power receiving apparatus includes a power reception unit for receiving electric power from a power transmitting apparatus outside of a vehicle in a non-contact manner, and a control device for controlling the electric power transmission from the power transmitting apparatus. The control device controls the electric power transmission based on a monitoring result obtained by monitoring the surroundings of the vehicle, and a door state detection result obtained by detecting whether or not a door of the vehicle is open. The control device causes, if the door state detection result indicates that the door is open, the power transmitting apparatus to reduce the power of the electric power transmission, and controls the electric power transmission without using the monitoring result.
摘要:
A spark plug comprising: a center electrode extending along an axis; an insulator provided about the outer peripheral surface of the center electrode; a metal shell provided about the outer peripheral surface of the insulator; a noble metal tip provided at the leading end portion of the center electrode; one end of the ground electrode fixed at the leading end of the metal shell, and the other end of the ground electrode forming a gap with the leading end of the noble metal tip; a stopper preventing the noble metal tip from moving relative to the central electrode; a molten portion formed by irradiating laser or electron beam; and a closed space formed between the basal portion of the noble metal tip and the center electrode. The molten portion welds the center electrode and a part of the basal portion of the noble metal tip.
摘要:
A resonance type non-contact power supply system is provided that includes power supplying equipment and an electric vehicle. The power supply equipment includes an alternating-current power source and a primary-side resonance coil for receiving power from the alternating-current power source. The electric vehicle includes power receiving equipment and a vehicle height control device mounted on the electric vehicle. The power receiving equipment includes a secondary-side resonance coil that receives power from the primary-side resonance coil, a rectifier that rectifies the power received by the secondary-side resonance coil, and an electrical storage device, to which the power rectified by the rectifier is supplied. A resonance system that includes the primary-side resonance coil and the secondary-side resonance coil is configured such that impedance thereof is adjusted by the use of the vehicle height control device when the electrical storage device is charged.
摘要:
Power supply equipment (10) is provided with an AC power supply (11) and a primary-side resonance coil (13b). Movable body equipment (20) is provided with a secondary-side resonance coil (21b), which receives power from the primary-side coil, a rectifier (23), which rectifies the received power, a charger (24) to which the rectified power is supplied, and a secondary battery (25), which is connected to the charger. A primary matching unit (12) is provided between the AC power supply (11) and the primary-side resonance coil (13b). A secondary matching unit (22) is provided between the secondary-side resonance coil (21b) and the rectifier (23). A control unit is provided to either the power supply equipment (10) or the movable body equipment (20). The control unit controls a primary matching unit adjustment unit (14) and a secondary matching unit adjustment unit (26). In order to efficiently transfer power from the primary side to the secondary side when charging the secondary battery, the control unit initially adjusts the secondary matching unit (22). After adjusting the secondary matching unit (22), the control unit adjusts the first matching unit (12).