Abstract:
Players input their messages in their video game apparatuses and the messages are once collected at a server apparatus, thereafter they are distributed to all video game apparatuses from the game server apparatus. In a display screen of each video game apparatus, a chat window is displayed in order to display messages exchanged between the players on a game screen including a field and characters of the game. The chat window is sequentially enlarged up to a preset maximum number of lines when a new message is received from the game server apparatus. The chat window is sequentially reduced to the preset minimum number of lines when a predetermined time passes without any reception of new message or when the player performs a specific operation.
Abstract:
A pneumatic tire which offers extremely excellent durability through inclusion of a belt portion composed of a rubber composition having excellent reinforcing properties, high hardness, low heat build-up properties, excellent deterioration resistance, and excellent adhesiveness to steel cords, wherein the rubber composition contains a natural rubber prepared by graft polymerizing a natural rubber latex with a polar group-containing monomer, and solidifying and drying the resulting product. A pneumatic tire which offers excellent rolling resistance through inclusion of a ply coating rubber, squeegee rubber, or tie rubber composed of a rubber composition containing a modified natural rubber prepared by graft polymerizing a natural rubber latex with a polar group-containing monomer, and solidifying and drying the resulting product.
Abstract:
In a heavy duty pneumatic tire comprising a tread, the tread is made of a rubber composition comprising 20-67 parts by weight of carbon black and 3-20 parts by weight of silica based on 100 parts by weight of diene based rubber, wherein the carbon black has a ratio of a dibutyl phthalate (DBP) absorption to a 24M4 DBP absorption (DBP absorption/24M4 DBP absorption) of not less than 1.20 and a ratio of the DBP absorption to a nitrogen adsorption specific area (N2SA) of not less than 0.8.
Abstract:
This invention relates to a pneumatic tire comprising a pair of bead portions (1), a pair of sidewall portions (2), a tread portion (3) continuing to both the sidewall portions (2), a carcass (4) composed of one or more carcass plies toroidally extending between the pair of bead portions and reinforcing these potions and a pair of side reinforcing rubber layers (5) each disposed on an inside of the carcass (4) at the sidewall portion (2), wherein the carcass ply is formed by covering reinforcing cords with a coating rubber and a rubber composition having a loss tangent (tan δ) at 25° C. and 1% strain of not higher than 0.12 is applied to the coating rubber, and/or a rubber composition having a loss tangent (tan δ) at 25° C and 1% strain of not higher than 0.15 is applied to the sidewall portion (2).
Abstract:
In a pneumatic tire of the present invention, a tread reinforcing rubber layer composed of a rubber having larger tensile modulus of elasticity than that of a rubber composing the tread rubber layer and is less stretchable is provided in a thickness direction central area of a tread rubber layer. Because the tread reinforcing rubber layer diminishes the amount of lateral expansion and the amount of vertical compressive deformation when the tread rubber layer contacts the ground, generation of heat in the tread rubber layer can be suppressed. Therefore, in the present invention, the unique tread structure reliably suppresses heat-generation and the rubber of the tread rubber layer exhibits excellent tire wear resistance. As a result, suppression of heat-generation and high tire resistance can readily be achieved simultaneously.
Abstract:
A rubber composition contains 100 parts by weight of natural rubber and/or a diene type synthetic rubber and 20-70 parts by weight of carbon black having the following characteristics:(1) N.sub.2 SA: 70.about.145 m.sup.2 /gr;(2) DBP: 160.about.200 ml/100gr;(3) 24M4DBP: 130.about.150 ml/100gr;(4) DBP-24M4DBP=.DELTA.DBP.ltoreq.1.25.times.DBP-172.5;(5) N.sub.2 SA/IA: 1.1.about.1.4; and(6) .DELTA.D.sub.50 /dst: 0.50.about.0.80.
Abstract:
Disclosed is a rubber composition suitable for use as a cap ply rubber composition. The rubber composition comprises: (a) at least one natural or synthetic rubbery polymer; (b) from 0.1 to 20 phr of at least one hydrazide compound; (c) from 0.1 to 10 phr of at least one methylene donor; (d) from 0.1 to 10 phr of at least one methylene acceptor resin; and (e) from 0.1 to 10 phr of zinc oxide. A method of making the same is also disclosed.
Abstract:
Disclosed is a method comprising: (a) mixing in a first mixing step ingredients comprising (i) first polymer, (ii) a low molecular weight polymer having a number average molecular weight of about 5,000 to about 100,000, and (iii) a filler, and (b) mixing in a second mixing step ingredients comprising (i) the mixture obtained in step (a), (ii) a second polymer that is different from said first polymer, and (iii) optionally a filler. In one embodiment, the method further comprises mixing sulfur and vulcanization accelerator(s) into the composition, forming the rubber composition into a sidewall for a tire, and vulcanizing the rubber composition.
Abstract:
The invention relates to a lithium-transition metal compound powder for a positive-electrode material for lithium secondary battery which comprises secondary particles configured of primary particles having two or more compositions and a lithium-transition metal compound having a function of being capable of insertion and release of lithium ions, wherein the powder gives a pore distribution curve having a peak at a pore radium 80 nm or greater but less than 800 nm, and the secondary particles include primary particles of a compound represented by a structural formula including at least one element selected from As, Ge, P, Pb, Sb, Si and Sn, wherein the primary particles of the compound are present at least in an inner part of the secondary particles.
Abstract:
A tire which has a bead filler (5) arranged on the outside in the tire radius direction of one pair of bead sections provided at the right and left thereof, one pair of side wall sections (6) provided in the right and left of a tread section, and a rubber reinforcing layer (7) arranged in the side wall section (6), characterized in that the rubber composition constituting the bead filler (5) or the rubber reinforcing layer (7) comprises a conjugated diene based polymer having a vinyl bond content of 25% or more, a weight average molecular weight (Mw) of 200,000 to 900,000 and a molecular weight distribution (Mw/Mn) represented by the ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn) of 1 to 4 in an amount of 50 mass % or more of the rubber component thereof, and a resin and a curing agent therefor in a total amount of 3 parts by mass or more relative to 100 mass parts of the rubber, and exhibits a modulus of elasticity at 100% elongation at 25° C. of 5 MPa to 20 MPa and a dynamic modulus of elasticity at room temperature of 10.5 MPa or less.