Abstract: A thermoplastic elastomer composition dynamically vulcanized to a gelation rate of 50 to 95% which is superior in heat resistance and durability while maintaining flexibility and superior in air permeation preventive property which can be efficiently used as, for example, a pneumatic tire as an air permeation preventive layer. In particular, a thermoplastic elastomer composition having a reduced particle size of the domain rubber is produced by a material having a high rubber ratio by mixing a composition (C) mixed under conditions of a ratio of melt viscosities of the rubber composition (A)/resin (B) of 0.8 to 1.2 and the formula (&phgr;A/&phgr;B)×(&eegr;B/&eegr;A)<1.0 under conditions of a ratio of melt viscosities of the rubber composition (D)/composition (C) of 0.8 to 1.2 and the formula (&phgr;D/&phgr;C)×(&eegr;C/&eegr;D)<2.

Abstract: A thermoplastic elastomer composition produced from a thermoplastic resin and rubber and having a dispersion phase formed of a rubber composition at least part of which is dynamically crosslinked in the continuous phase of the thermoplastic resin, insulating glass using the thermoplastic elastomer composition as a sealing material and spacer, a process for producing the insulating glass using a sealing material made from the thermoplastic elastomer composition, comprising the steps of inserting the leading end of a charging nozzle into a space between the peripheral portions of a plurality of glass sheets, discharging the sealing material from the leading end of the nozzle body at a predetermined rate, and moving the glass sheets or the nozzle body relative to each other to charge the sealing material made from the thermoplastic elastomer composition into the space between the peripheral portions of the glass sheets, and a nozzle used in this process.

Abstract: A wiper blade which is prepared by one-piece molding of a wiper base material comprising a thermoplastic elastomer composition comprising a thermoplastic resin and a dynamically vulcanized elastomer component and having a structure wherein the dynamically vulcanized elastomer component is dispersed in a continuous phase comprised of the thermoplastic resin, and a reinforcing material. The wiper blade is advantageous in that it is excellent in wiping property and also durability, the occurrence of chattering noise is expressed, and it needs a reduced number of steps for assembly. The use of the wiper base material has allowed the preparation of a wiper blade having such excellent characteristics by the use of one-piece molding.

Abstract: A thermoplastic elastomer composition dynamically vulcanized to a gelation rate of 50 to 95% which is superior in heat resistance and durability while maintaining flexibility and superior in air permeation preventive property which can be efficiently used as, for example, a pneumatic tire as an air permeation preventive layer.

Abstract: A thermoplastic elastomer composition produced from a thermoplastic resin and rubber and having a dispersion phase formed of a rubber composition at least part of which is dynamically crosslinked in the continuous phase of the thermoplastic resin, insulating glass using the thermoplastic elastomer composition as a sealing material and spacer, a process for producing the insulating glass using a sealing material made from the thermoplastic elastomer composition, comprising the steps of inserting the leading end of a charging nozzle into a space between the peripheral portions of a plurality of glass sheets, discharging the sealing material from the leading end of the nozzle body at a predetermined rate, and moving the glass sheets or the nozzle body relative to each other to charge the sealing material made from the thermoplastic elastomer composition into the space between the peripheral portions of the glass sheets, and a nozzle used in this process.

Abstract: A cleaning and releasing device has a hand valve provided on a flow passage of a pressurized liquid in the vicinity of an injection nozzle, a switching valve 5 provided in a proper position on the flow passage of a pressurized gas, flow detecting means provided in a proper position on the flow passage of the pressurized liquid, and a controller for controlling the switching operation of the switching valve based on a result of detection transmitted from the flow detecting means, and controls the switching valve to supply and stop the pressurized gas depending on the presence of a flow of the liquid generated by the switching operation of the hand valve. The supply and stop of a powder and granular material may be controlled based on the result of detection transmitted from the flow detecting means.

Abstract: A process for producing a pneumatic tire using, as an air permeation preventive layer, a strip-shaped or cylindrical-shaped single-layer or multiple-layer thermoplastic film, comprising: applying, to at least a part of the joining portion of the thermoplastic film or tire member facing the thermoplastic film, a tackifier-adhesive composition containing a polymer component having an absolute value of the difference of the critical surface tension with the rubber component of the tire member and the polymer component of the surface layer of the thermoplastic film of not more than 6 mN/m, respectively.

Abstract: A pneumatic tire having an air permeation preventive layer comprising a low permeability thermoplastic elastomer composition comprising a thermoplastic elastomer having a thermoplastic resin composition as a continuous phase and a rubber composition as a dispersed phase, in which a barrier resin composition is contained, which low permeability thermoplastic elastomer composition has a phase structure in which the barrier resin composition is dispersed in the form of a flat state in the thermoplastic elastomer, is abundant in flexibility, is superior in gas permeation preventive property, and enables the tire to be reduced in weight.

Abstract: A water pump is connected to a mixer so as to blast high pressure water at a high speed in the mixer. The air and powder are supplied to the blast flow of the high pressure water through an air supply pipe and a powder supply pipe respectively so that a mixture flow composed of the gas, the droplet-like fluid, and powder is formed. The mixture flow is blasted from a nozzle at a high speed so as to be sprayed onto a surface to be treated. Thus, impact actions held by the powder and the droplet-like fluid as cleansing/scraping media are given to the surface to be treated. Thus, a cleansing/scraping operation is achieved. Then, if the fluid, gas or the like supplied to the mixer is heated, the cleansing/scraping operation can be further accelerated.

Abstract: A thermoplastic elastomer composition dynamically vulcanized to a gelation rate of 50 to 95% which is superior in heat resistance and durability while maintaining flexibility and superior in air permeation preventive property which can be efficiently used as, for example, a pneumatic tire as an air permeation preventive layer. In particular, a thermoplastic elastomer composition having a reduced particle size of the domain rubber is produced by a material having a high rubber ratio by mixing a composition (C) mixed under conditions of a ratio of melt viscosities of the rubber composition (A)/resin (B) of 0.8 to 1.2 and the formula (&phgr;A/&phgr;B)×(&eegr;B/&eegr;A)<1.0 under conditions of a ratio of melt viscosities of the rubber composition (D)/composition (C) of 0.8 to 1.2 and the formula (&phgr;D/&phgr;C)×(&eegr;C/&eegr;D)<1.

Abstract: A semiconductive member such as a semiconductive belt or a semiconductive roll used with an image formation apparatus has a portion formed of a thermoplastic elastomer composition comprising a thermoplastic resin 73 as a matrix and rubber particles 72 at least some of which have conductivity and at least some of which are cross-linked as domain.

Abstract: A thermoplastic elastomer composition dynamically vulcanized to a gelation rate of 50 to 95% which is superior in heat resistance and durability while maintaining flexibility and superior in air permeation preventive property which can be efficiently used as, for example, a pneumatic tire as an air permeation preventive layer. In particular, a thermoplastic elastomer composition having a reduced particle size of the domain rubber is produced by a material having a high rubber ratio by mixing a composition (C) mixed under conditions of a ratio of melt viscosities of the rubber composition (A)/resin (B) of 0.8 to 1.2 and the formula (&phgr;A/&phgr;B)×(&eegr;B/&eegr;A)<1.0 under conditions of a ratio of melt viscosities of the rubber composition (D)/composition (C) of 0.8 to 1.2 and the formula (&phgr;D/&phgr;C)×(&eegr;C/&eegr;D)<1.

Abstract: A thermoplastic elastomer composition containing a component (A) (thermoplastic polyolefin resin), component (B) (epoxy-group-containing ethylene acrylic ester copolymer rubber), and component (C) (acid-modified polyolefin resin) comprising a continuous phase of the component (A) in which the component (B) is dispersed as a dispersed phase and is cross-linked by a peroxide; a thermoplastic elastomer composition comprising a continuous phase of a thermoplastic polyolefin resin (A) and a dispersed phase of an epoxy-group-containing ethylene-acrylic ester copolymer rubber component (B) and acrylonitrile butadiene rubber component (C), which is dynamically cross-linked; and a hose having an inner tube, at least one reinforcing layer, and an outer cover, wherein the inner tube and the outer cover contain a thermoplastic elastomer composition comprised of a thermoplastic resin in which is blended an at least partially cross-linked elastomer component, the reinforcing layer is a brass-plated wire, and the reinforcin

Abstract: A process for producing a pneumatic tire using, as an air permeation preventive layer, a strip-shaped or cylindrical-shaped single-layer or multiple-layer thermoplastic film, comprising:applying, to at least a part of the joining portion of the thermoplastic film or tire member facing the thermoplastic film, a tackifier-adhesive composition containing a polymer component having an absolute value of the difference of the critical surface tension with the rubber component of the tire member and the polymer component of the surface layer of the thermoplastic film of not more than 6 mN/m, respectively.

Abstract: A method for preventing air permeation from a pneumatic tire wherein there is arranged inside the tire an air permeation preventive layer formed of a thermoplastic resin film produced by mixing and extruding at least two thermoplastic resins which are incompatible with each other, the film having a matrix phase of a first of the resins in which there is dispersed a dispersed phase having an oriented lamellar structure and formed of a second of the resins, wherein the ratio of melt viscosity of the second resin to that of the first resin at the molding temperature of the incompatible thermoplastic resins is preferably 1.5 to 20.

Abstract: A pneumatic tire having an air permeation preventive layer comprising a low permeability thermoplastic elastomer composition comprising a thermoplastic elastomer having a thermoplastic resin composition as a continuous phase and a rubber composition as a dispersed phase, in which a barrier resin composition is contained, which low permeability thermoplastic elastomer composition has a phase structure in which the barrier resin composition is dispersed in the form of a flat state in the thermoplastic elastomer, is abundant in flexibility, is superior in gas permeation preventive property, and enables the tire to be reduced in weight.

Abstract: The invention provides a laminate suitable for use with a pneumatic tire having an inner liner or like air-impermeable layer capable of, for example, maintaining a requisite air pressure. The laminate I of the invention includes laminated films and a rubber layer (R), the laminated films being made of a gas barrier layer (A) and an adhesive layer (B), the layer (B) being provided on at least one side of the layer (A), the layer (A) being formed of at least one member selected from polyamide resins, polyester resins, polyarylate resins, polyamide-based alloys and polyester-based alloys, the laminated films being irradiated in at least one periphery with an electron beam, and the adhesive layer (B) being heat-bonded to the rubber layer (R).

Abstract: A pneumatic tire has an air permeation preventive layer comprised of a film or sheet composed of a polymer composition containing a thermoplastic resin or a blend of a thermoplastic resin and an elastomer with an air permeation coefficient of not more than 25.times.10.sup.-12 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg and a Young's modulus of 1 to 500 MPa and wherein the film or sheet is arranged so that at least one turn of the film or sheet in the tire circumferential direction is free from a join.

Abstract: A thermoplastic elastomer composition containing a thermoplastic resin component including 10 to 95% by weight of a polypropylene having a syndiotactic structure and an elastomer component and having a value of .alpha., defined as follows, of 1 or less:.alpha.=(.phi.d/.phi.m).times.(.eta.m/.eta.d)wherein the volume fraction of the thermoplastic resin component is .phi.m, the melt viscosity thereof at the mixing conditions is .eta.m and the volume fraction of the elastomer component is .phi.d, the melt viscosity thereof is .eta.d.

Abstract: A thermoplastic elastomer composition comprising:i) from 15 to 80 parts by weight of a polyamide thermoplastic resin as component A;ii) from 20 to 85 parts by weight of a rubber composition as component B, the rubber composition containing a copolymer rubber composed of a copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a p-alkylstyrene, where at least a part of the p-alkylstyrene unit portions thereof have a halogen atom; andiii) a cross-linking agent,wherein the thermoplastic resin component A forms a continuous phase and at least part of component B is dispersed in component A as a dispersed phase and at least part of the dispersed phase is cross-linked by the cross-linking agent.