Abstract: It is an object to ensure the strength of a carcass line, enhance durability with respect to high applied loads, and be able to suppress the input of compressive force with respect to a carcass ply without increasing mass and cost. When W denotes a distance from a tire equatorial plane (CL) to a tire axial direction outermost point (P) of a carcass body portion (22C) and D denotes a tire radial direction height from bead base portions (30) to a carcass body portion (22A) at the tire equatorial plane (CL), a radius of curvature (R1) of a carcass ply (12) in a range from the tire equatorial plane (CL) to a position (P1) located 0.6 W away from the tire equatorial plane (CL) in the tire axial direction, a radius of curvature (R2) of a carcass body portion (22B) in a range from the position (P1) to a position (P2) located 0.

Abstract: The present invention provides a tire with a synthetic fiber interior layer that adds flexibility and resistance to punctures from sharp objects. The present invention includes a rubber layer having an interior and exterior surface forming a substantially U-shaped tire cross section. Embedded between the interior and exterior surface of the rubber layer are radial plies extending across the tread, shoulders and sidewalls of the exterior surface. Sidewalls further include inner ends, wherein each radial ply folds back onto itself to form an enclosed bead chaffer region. An interior layer is coextensively and interiorly disposed along the radial ply. The interior layer is disposed within the tire cross section around the beads, and exits the tire cross section through the interior surface of the rubber layer and into the open interior of the tire. The interior layer is separable and freely positioned against the interior surface of the rubber layer.

Abstract: A pneumatic tire that is provided with a first fastener of a separatable pair of mechanical fasteners on a tire inner surface, wherein, even in cases where a desired object is engaged/fixed using only one fastener, the object does not rotate having the fastener as a central axis when the tire is in use. A first fastener of the pair of mechanical fasteners is provided on a tire inner surface, and the mechanical fasteners are provided with a rotation preventing mechanism for preventing the fasteners from mutually rotating when the pair of mechanical fasteners are engaged.

Abstract: A pneumatic tire including a separatable pair of mechanical fasteners wherein a first fastener of the pair of mechanical fasteners is provided on a tire inner surface. In this pneumatic tire, the obtained engagement force of the pair of mechanical fasteners is great and is essentially free of variations (positional variation within the tire and variation from tire to tire); the engagement force deteriorates/declines minimally over time due to extreme usage conditions including repetitive deformation and compaction over an extended period of time caused by tire rotation at high speeds in a state of relatively elevated temperatures; and the desired engagement force can be maintained over an extended period of time.

Abstract: A method of preparing a green tire innerliner, the method comprising mixing one or more vulcanizable rubbery polymers, less than 0.75 parts by weight zinc oxide, less than 0.75 parts by weight magnesium oxide, and less than 0.75 parts by weight sulfur, per 100 parts by weight rubber, to form a vulcanizable mixture and extruding the mixture to form a green tire innerliner.

Abstract: Airtight and puncture-resistant multilayer elastomer laminate that can be used in particular in an inflatable article, such as a pneumatic tire for a vehicle, comprising at least the following three layers (phr signifying parts by weight per hundred parts of rubber (elastomer) in each composition considered): as an airtight first layer, a first elastomer composition comprising at least 50 phr of a diene elastomer; as a puncture-resistant second layer, a self-sealing second elastomer composition comprising at least 50 phr of a saturated thermoplastic styrene elastomer and more than 200 phr of an extender oil; as an adhesive third layer or interphase between the above two layers, a third composition comprising at least 30 phr of an unsaturated thermoplastic styrene elastomer.

Abstract: The present invention relates to a pneumatic tire having an inner liner formed from a rubber composition that includes a butyl rubber in which the Mooney viscosity measured at 130° C. of an unvulcanized rubber of the rubber composition is at least 45, wherein the average value and standard deviation of the butyl rubber gauge of shoulder portion of a finished tire satisfy: (Standard deviation of butyl rubber gauge)/(Average value of butyl rubber gauge)?0.060. The rubber gauge of the tire exhibits improved uniformity and is superior in air permeability resistance.

Abstract: A pneumatic object or inflatable article includes a gastight elastomer layer. The elastomer layer is formed of a material that includes at least one thermoplastic polyisobutylene block elastomer and a platy filler, such that relationships of: EX?/EZ?>1.2 and EY?/EZ?>1.2 apply, with Z being a direction normal to the elastomer layer, X and Y being directions orthogonal to Z, and EX?, EY? and EZ? being dynamic moduli in compression of the elastomer layer in the X, Y, and Z directions, respectively.

Abstract: A pneumatic tire includes an inner liner and a carcass ply provided adjacent to the inner liner and having a cord embedded in a rubber layer. The inner liner is composed of a polymer layer stack including a first layer of a polymer composition containing SIBS and a rubber component having a thickness of 0.05 mm to 0.6 mm, and a second layer of a polymer composition containing at least either one of SIS and SIB as well as a rubber component having a thickness of 0.01 mm to 0.3 mm. The second layer is arranged so as to be in contact with the rubber layer of the carcass ply. A distance L from a plane passing through the center of cross section of the cord to the second layer is more than or equal to 0 and less than or equal to (1+D/2) mm where D denotes the diameter of the cord.

Abstract: The present invention relates to pneumatic tires having a laminated innerliner with reinforced splice. The laminated innerliner is a pre-formed laminate comprised of an innerliner film which contains an RFL adhesive coating on both sides for which the innerliner film is cohesively bonded through the RFL adhesive to an uncured tire rubber carcass ply. The uncured splice is comprised of overlapping end portions of the uncured laminated innerliner cohesively bonded together through the RFL adhesive which provides building tack. The uncured splice is reinforced by a an uncured rubber strip cohesively bonded to the laminate by the building tack-providing RFL adhesive for which the strip abridges, the overlapping end portions of the splice, or is sandwiched between the overlapped end portions of the splice, to form a cohesively bonded composite. The assembly, or composite, thereof is cured to adhesively bond the splice and rubber strip together.

Abstract: A pneumatic tire designed so that when a hook and loop fastener is fitted to the tire internal face of a pneumatic tire furnished with an inner liner layer consisting of a thermoplastic elastomer composition of a blend of thermoplastic resin and elastomer, or a thermoplastic resin, the hook and loop fastener can easily follow the elongation of the inner liner layer and is free from damaging of the inner liner layer. There is disclosed a pneumatic tire furnished on its internal face with an inner liner layer (7) consisting of a thermoplastic elastomer composition composed of thermoplastic resin and elastomer, or a thermoplastic resin, characterized in that integral forming of a multiplicity of interlocking elements (8) protruding on the hollow side of the tire is effected on the surface of the inner layer (7).

Abstract: An article having a fluid permeation prevention layer, such as a pneumatic tire or hose. A tire for example includes an outer tread layer, intermediate sidewall and carcass layers and an innermost air permeation prevention layer: (i) the air permeation prevention (APP) layer having an upper and a lower surface, the layer having a polymer composition exhibiting an air permeation coefficient (APC) of about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.) or less and a Young's modulus of about 1 MPa to about 500 MPa, the polymer composition comprising: (A) at least 10 wt % of at least one. thermoplastic resin component having an APC of about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.) or less and a Young's modulus of more than 500 MPa, which is preferably a polyamide resin or mixture, and (B) at least 10 wt % of at least one elastomer component having an APC of more than about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.

Abstract: An article having a fluid permeation prevention layer, such as a pneumatic tire or hose. A tire for example includes an outer tread layer, intermediate sidewall and carcass layers and an innermost air permeation prevention layer: (i) the air permeation prevention (APP) layer having an upper and a lower surface, the layer having a polymer composition exhibiting an air permeation coefficient (APC) of about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.) or less and a Young's modulus of about 1 MPa to about 500 MPa, the polymer composition comprising: (A) at least 10 wt % of at least one thermoplastic resin component having an APC of about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.) or less and a Young's modulus of more than 500 MPa, which is preferably a polyamide resin or mixture, and (B) at least 10 wt % of at least one elastomer component having an APC of more than about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.

Abstract: Provided is a thermoplastic elastomer composition that can be suitably used for the inner liners of pneumatic tires and exhibits high air barrier properties and high fatigue durability. The present invention is a thermoplastic elastomer composition comprising a thermoplastic resin composition and a rubber composition dispersed in the thermoplastic resin composition, wherein the thermoplastic resin composition comprises a polyamide and an ethylene-vinyl alcohol copolymer or a poly(vinyl alcohol), the rubber composition comprises a halogenated isoolefin-p-alkylstyrene copolymer and is cross inked. The thermoplastic resin composition preferably comprises 1 to 25% by weight of the ethylene-vinyl alcohol copolymer or the poly(vinyl alcohol). The thermoplastic elastomer composition preferably comprises 100 parts by weight of the thermoplastic resin composition and 80 to 200 parts by weight of the halogenated isoolefin-p-alkylstyrene copolymer.

Abstract: A thermoplastic elastomer composition having a continuous phase and a dispersed phase, wherein the continuous phase comprising (A) an epoxy-modified polyamide resin, and the dispersed phase comprising (B) a halogenated isoolefin-paraalkylstyrene copolymer rubber, wherein the thermoplastic elastomer composition is obtained by melt-kneading (B) halogenated isoolefin-paraalkylstyrene copolymer rubber, (C) a polyamide resin, and (D) a polyfunctional epoxy compound having two or more epoxy groups per molecule in an amount of 0.05 parts by weight or more and less than 3 parts by weight with respect to 100 parts by weight of polyamide resin (C), at a temperature which is equal to or more than the melting point of polyamide resin (C), and epoxy-modified polyamide resin (A) is produced by the reaction of polyamide resin (C) with polyfunctional epoxy compound (D) during the melt-kneading.

Abstract: A tire containing at least a circular tire frame body that is formed from a resin material and has a layered structure, wherein the tire frame body includes at least one gas retaining layer.

Abstract: A barrier layer is provided for an inflatable article for impeding the flow of inflation gas through the inflatable article. The barrier layer may be constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (phr), between 1 phr and 40 phr of a chlorosulfonated polyethylene rubber, between 60 phr and 99 phr of a butyl rubber and a sulfur curing system.

Abstract: In order to improve fatigue durability of a thermoplastic elastomer composition composed of a matrix phase of a thermoplastic resin and dispersed phases of a rubber, the thermoplastic elastomer composition comprises (A) 100 parts by weight of a halogenated poly(isoolefin-co-p-alkylstyrene) rubber, (B) 40 to 120 parts by weight of a polyamide resin, and (C) 0.5 to 10 parts by weight of an amine having at least one hydroxyl group. The amine (C) having at least one hydroxyl group is preferably a compound represented by formula (1): where R1 is a C1-30 alkyl; R2 is —(C2H4O)n—H, where n is an integer of 1 to 30; and R3 is —(C2H4O)m—H, where m is an integer of 1 to 30, a C1-30 alkyl, or hydrogen.

Abstract: A tire comprising an innerliner, where the innerliner includes a rubber and boron nitride dispersed within the rubber.

Abstract: Provided is a pneumatic tire which exhibits excellent performance in flex crack growth resistance, rolling resistance and static air pressure drop, and includes an SIBS layer containing a styrene-isobutylene-styrene triblock copolymer as a polymer sheet used for an inner liner. The SIBS layer has a thickness more than or equal to 0.05 mm and less than or equal to 0.6 mm. The SIBS layer contains more than or equal to 0.5% by mass and less than or equal to 40% by mass of a polymer obtained by polymerization of a monomer unit having 4 carbon atoms.

Abstract: The invention relates to a device for inserting inside tires of a vehicle so that it follows its course without stopping after a bursting. The device comprises a cluster of flexible bladders (1) which are made of rubber, have a diameter of one to several inches according to the use, are interconnected by a cord (2.1) with its distribution branches (2.2, 2.3) and an inflating stem (3). The air enters each bladder via the cord by means of a very sensitive mini-check valve (9). During inflation, the air contained inside the space of the tire is purged via a purging system (6, 7, 8). In one variant, the principle of the valves, cord and purge is retained, but there are fewer bladders and they have the shape of sections of the tire. Bladders that are resistant to depression can also be used with the same valves and purge but without a cord. The refilling ensues by an over inflation step followed by a reduction effected by the purge until the operating pressure is reached.

Abstract: Provided is an adhesive composition that provides excellent adhesion between a thermoplastic resin or a thermoplastic elastomer in which an elastomer component is dispersed in the thermoplastic resin and a tire by a combination of general-purpose materials, without using any special polymer. The adhesive composition comprises 100 parts by weight of a base polymer and 20 to 50 parts by weight of a resol-type phenolic resin-based resin crosslinking agent, wherein 100 parts by weight of the base polymer comprises 80 to 99 parts by weight of a thermoplastic elastomer and 1 to 20 parts by weight of a halogenated rubber. The resol-type phenolic resin-based resin crosslinking agent is preferably an alkylphenol-formaldehyde resin. Examples of the thermoplastic elastomer can include styrene-butadiene-styrene block copolymers, and examples of the halogenated rubber can include chloroprene rubber and chlorosulfonated polyethylene.

Abstract: A tire with a cellular layer is provided. The tire includes a tire structure formed of at least one crown extended by two sidewalls and two beads. A base of each of the two beads is configured to be mounted onto a rim seat. The tire also includes a carcass-type reinforcing structure anchored into the two beads, and a layer that includes a cellular material, also referred to as a cellular layer. The cellular layer is positioned on an inner wall of the tire structure, such that the cellular layer is bonded to the tire structure over at most over 20% of a surface of the cellular layer and is not bonded to the tire structure elsewhere on the surface.

Abstract: A layered structure suitable for use in a pneumatic tire as an innerliner is prepared by directly bonding a fluid permeation prevention film and an adhesive tie layer. Prior to the bonding, the fluid permeation prevention layer is treated to remove any residual plasticizers or oils on the surface of the film. The tie layer comprises 100 weight % of at least one halogenated isobutylene containing elastomer and about 1 to about 20 parts per hundred (phr) of at least one tackifier. The fluid permeation prevention film comprises an elastomeric component dispersed in a vulcanized or partially vulcanized state, as a discontinuous phase, in a matrix of the thermoplastic resin component. The two layers of the layered structure may be separately extruded and then adhered to each other or adhered to each other during a calendaring operation wherein the adhesive tie layer composition is coated onto the treated film.

Abstract: The present invention relates to an encasing for releasably containing a device and tire containing such encasing or encased device.

Abstract: An inner tube having a closed polymeric envelope with a primary surface comprising means allowing compression of the polymeric envelope when inflated under the normal conditions of use of the assembled unit. A radially outer part has a meridian curvature such that the ratio of the average radius of its meridian curvature to the radius of a circle of perimeter equal to the meridian perimeter of the primary surface of the polymeric envelope is greater than 2.5 and preferably greater than 10, when the inner tube is inflated to a pressure of 2000 pascals and the ratio of the average radius of the meridian curvature of the side parts to the radius of a circle of perimeter equal to the meridian perimeter of the primary surface of the polymeric envelope is greater than 2.5 and preferably greater than 10, when the inner tube is inflated to a pressure of 2000 pascals.

Abstract: The present invention is a pneumatic tire comprising an inner liner disposed on the inner side of the tire. The inner liner is composed of a sheet made of an elastomer composition containing a styrene-isobutylene-styrene triblock copolymer by more than or equal to 7 percent by mass and less than or equal to 93 percent by mass and an isobutylene-based modified copolymer containing a ?-pinene component by more than or equal to 7 percent by mass and less than or equal to 93 percent by mass. In the inner liner, a ratio Gs/Gb between an average thickness Gb in a bead region Rb extending from a tire largest width position to a bead toe and an average thickness Gs in a buttress region Rs extending from the tire largest width position to a corresponding position Lu at a belt layer end is 0.30 to 0.75.

Abstract: Provided is an air permeation resistant film in which flexibility can be imparted to the film without remarkably increasing the proportion of a rubber constituting a dispersed phase. An air permeation resistant film comprising (A) a thermoplastic polyester elastomer which comprises a block copolymer containing a polyester as a hard segment and has a melting point of from 180 to 230° C., and (B) a rubber, in a mass ratio (A)/(B) of from 90/10 to 40/60, wherein the component (A) and the component (B) are melt-kneaded to perform dynamic crosslink, thereby forming a continuous phase composed of the component (A) and a dispersed phase composed of the component (B), and the film has an air permeation coefficient at 80° C. of 5×1013 fm2/Pa·s or less and Young's modulus of 120 MPa or less.

Abstract: A method for producing a pneumatic tire in which an air-in phenomenon between an inner liner and a carcass is avoided by preventing adhesion of the inner liner to a bladder includes the following steps. A green tire using, as an inner liner, a polymer laminate including a first layer having a thickness of 0.05 mm to 0.6 mm made of a styrene-isobutylene-styrene triblock copolymer, and a second layer composed of at least one of a second A layer made of a styrene-isoprene-styrene triblock copolymer and a second B layer made of a styrene-isobutylene diblock copolymer, the second layer having a thickness of 0.01 mm to 0.3 mm, is prepared. The green tire is mounted in a mold for vulcanization with pressurization by the bladder to obtain a vulcanized tire. The vulcanized tire is cooled at 50 to 120° C. for 10 to 300 seconds.

Abstract: [Object] To provide a pneumatic tire 34 in which weight reduction is achieved without deteriorating internal pressure maintaining performance. [Solution] The tire 34 includes a liner 46 located inward of a carcass 42. The liner 46 includes a first inner liner 66 extending on and between one of beads and the other of the beads and along and inward of the carcass 42; and a pair of second inner liners 68 extending from ends 62a of a belt 44, respectively, along the first inner liner 66 substantially inward in a radial direction. The second inner liners 68 are located between the first inner liner 66 and the carcass 42. The first inner liner 66 is formed by a first rubber composition being crosslinked. A base rubber of the first rubber composition includes a butyl rubber. Each second inner liner 68 is formed by a second rubber composition being crosslinked. A base rubber of the second rubber composition includes a diene rubber.

Abstract: During building of a carcass structure, a liner is applied around an outer surface of a primary drum by: circumferentially winding at least one pair of sheets of elastomeric material around an outer surface of the primary drum, which sheets are axially spaced apart from each other so as to form respective axially external portions of the liner; laying at least one continuous elongated element of elastomeric material in the form of a plurality of mutually approached coils around the outer surface of the primary drum in order to form a central portion of the liner having axially external edges that are each associated with an axially internal edge of one of said axially external portions of the liner.

Abstract: A method of preparing a tire inner surface includes providing an uncured tire having an inner surface, placing a strip of multi-axially stretchable blend film on a circumferential surface of the inner surface, wherein one end of the overlapped splice joined by a pressure-sensitive adhesive for easy removal of the strip from the inner surface, applying a release agent coating to the annular, circumferential film strip and the inner surface of the uncured tire, shaping and curing the uncured tire with the release coating on the annular circumferential film strip and inner surface in a suitable mold at an elevated temperature, removing the cured tire from the mold and allowing the cured tire to cool, and removing the annular circumferential film strip with its release coating by use of a film strip to provide a circumferential release coating-free tire inner surface of the cured tire for adhering balance pads, puncture sealants, and noise reduction foams.

Abstract: This disclosure is directed to a tire innerliner comprising a dynamically vulcanized alloy of an elastomer and an engineering resin; wherein the innerliner is contoured. The disclosure further relates to methods of making such innerliners and tires made from such innerliners.

Abstract: The present invention provides a rubber composition exhibiting good workability and suitable for use in an inner liner of a tire. Specifically, the present invention provides a rubber composition, comprising: a rubber component; an inorganic filler having an aspect ratio of 2 to 200; and optionally at least one of carbon black and a metal salt of aliphatic acid, wherein contents of the inorganic filler, the carbon black and the metal salt of aliphatic acid satisfy following formula (1): C?0.016×(A?0.5×B)?1.18 ??(1) In formula (1), “A” represents a content (parts by mass) of the inorganic filler with respect to 100 parts by mass of the rubber component, “B” represents a content (parts by mass) of the carbon black with respect to 100 parts by mass of the rubber component, and “C” represents a content (parts by mass) of the metal salt of aliphatic acid with respect to 100 parts by mass of the rubber component.

Abstract: Disclosed herein is a process to produce a laminate comprises coating at least an outer surface of a dynamically vulcanized alloy film with an adhesive composition to produce the laminate, wherein the adhesive layer has a thickness of less than or equal to about 5 microns, wherein the dynamically vulcanized alloy film comprises a thermoplastic elastomer composition containing a thermoplastic resin as a continuous phase, and a rubber composition dispersed therein, as a dispersed phase. A laminate and a pneumatic tire comprising the laminate are also disclosed.

Abstract: The inner liner is composed of a polymer layer stack including a first layer containing an SIBS and a second layer containing at least one of an SIS and an SIB. At least one of the first layer and the second layer is a polymer composition containing one of a C4 polymer obtained by polymerizing a monomer unit having 4 carbon atoms, a layered clay mineral with an organic compound intercalated therein and at least one kind of rubber component selected from the group consisting of a natural rubber, an isoprene rubber and a butyl rubber. The second layer is arranged to come into contact with a rubber layer of the carcass ply. The inner liner has a thickness Ge at a shoulder position Pe exceeding 100% and being less than or equal to 500% of a thickness Gc at a crown central position Pc.

Abstract: A tire (3) for vehicles, which does not require pressurization by means of a pressurized fluid, has a tread (16), two sidewalls (15), and two beads (8) attached to a wheel rim (2) and made of elastomer material; the tire is provided with at least one tubular reinforcement body (18) which is associated with the tread; each of the sidewalls have a respective homogeneous resilient annular membrane (24).

Abstract: A pneumatic tire includes: an inner liner having a thermoplastic resin film, a carcass, and an adhesive layer disposed between the inner liner and the carcass, in which the dynamic storage modulus E's at ?20° C. of the thermoplastic resin film, the adhesive layer, and the carcass are defined as E1?, E2?, and E3?, respectively, and the relationship among E1?, E2?, and E3? satisfies E1?>E2?>E3?. This pneumatic tire has excellent anti-crack property in a low-temperature environment of the inner liner.

Abstract: Provided is an inner liner for a pneumatic tire including no less than 8 resin-layers, the resin-layer having a layer A constituted with a resin composition containing a resin having gas barrier properties, and a layer B that is adjacent to the layer A and is constituted with a resin composition containing an elastomer, an extensional viscosity ?A of the resin composition of the layer A, and an extensional viscosity ?B of the resin composition of the layer B as determined at a predetermined temperature both being no less than 1,000 Pa·s, and an extensional viscosity ratio ?A/?B being no less than 0.2 and no greater than 10.

Abstract: A pneumatic tire uses, as an inner liner layer, a laminated sheet obtained by laminating a tie rubber layer and an air permeation preventing layer made of any one of a thermoplastic resin and a thermoplastic elastomer composition containing a blend of the thermoplastic resin and an elastomer, and has excellent durability making it possible to prevent the tie rubber layer from being cracked around a splice portion of the laminated sheet after the tire starts to be used. The pneumatic tire also can include, in addition to the laminated sheet, a perforated portion penetrating the air permeation preventing layer that is formed within a range of 25 mm, on at least either side in a tire circumferential direction, from a cavity-side end A of a splice portion of the air permeation preventing layer.

Abstract: The invention provides an inner liner rubber composition that enables improvements in handling stability, fuel economy, elongation at break, sheet processability, air barrier properties, and compounding cost in a balanced manner; and a pneumatic tire including an inner liner formed from the rubber composition.

Abstract: The laminate according to the present invention includes a thermoplastic resin film-containing layer and a rubber layer, in which the rubber layer contains a modified diene polymer, and the rubber layer has a dynamic storage modulus E? at ?20° C. of 1.0×105 to 1.0×108 Pa. This laminate can improve the resistance to the fractures and the cracks of the inner liner.

Abstract: A rubber composition for an inner-liner joint strip is capable of improving green strength and adhesion, while maintaining good durability (oxidative degradation resistance, crack growth resistance) and good air retention properties, which are exhibited by a pneumatic tire formed from the composition. The rubber composition for an inner-liner joint strip, includes: a butyl rubber; silica and/or carbon black; and an alkylphenol-sulfur chloride condensate represented by formula (1) below, wherein a butyl rubber content is 60 to 100 mass % based on 100 mass % of the rubber component of the rubber composition, a total combined amount of the silica and the carbon black is 21 to 70 parts by mass per 100 parts by mass of the rubber component, and an amount of the alkylphenol-sulfur chloride condensate is 0.1 to 5 parts by mass per 100 parts by mass of the rubber component.

Abstract: The present invention provides a method of manufacturing a pneumatic tire, which can prevent an air pocket from being generated in a vicinity of a spliced portion of a sheet member (B) to be attached to an inner liner, even in the case of using, as the inner liner, a sheet member (A) made of a composition containing a resin component. The method includes a step of laminating a sheet member (A) and a sheet member (B) while being pressed on a making drum. The sheet member (B) is made of a rubber composition, and has two end portions in the circumferential direction overlapped and spliced with each other. In the method, a cut line of each end of the sheet member (B) in the circumferential direction has a vertex in the intermediate point in the width direction of the sheet member (B). Moreover, the cut line is displaced in the opposite direction to the rotational direction of the making drum as extending from the vertex to each of the right and left edges in the width direction.

Abstract: To provide a multilayer structure that may adhere to rubber material without the necessity of providing an adhesive layer, an inner liner and a pneumatic tire using the multilayer structure. According to the present invention, a multilayer structure 1 is formed by alternately laminating elastomer layers 3 containing thermoplastic elastomer and barrier layers 2 containing a gas barrier resin, wherein an outermost layer 4 laminated uppermost among layers constituting the multilayer structure 1 contains an elastomer component that may heat-adhere to diene rubber.

Abstract: A laminate (C) of a thermoplastic polymer composition comprising: a thermoplastic resin composition (A) having an permeation coefficient of 10×10?12 cc·cm/cm2·sec·cmHg or less, laminated with a thermoplastic polymer composition (B) having a melt viscosity of 500-2000 Pa·s and a Young's modulus at a room temperature of 1-400 MPa, wherein the thickness of a layer of the thermoplastic resin composition (A) is 0.05-10 ?m and the air permeation coefficient of the laminate (C) of 20×10?12 cc·cm/cm2·sec·cmHg or less, and a pneumatic tire using the above laminate (C) as an inner liner.

Abstract: Construction comprising a tie layer.

Abstract: A multilayer elastomer laminate that is impermeable to inflation gases, which is capable of adhering to a diene elastomer composition and which can be used in an inflatable article provided with such a diene composition, said laminate comprising at least two superposed elastomer layers (phr signifying parts by weight per hundred parts of elastomer, in each elastomer composition considered): as a gastight first layer, a first elastomer composition comprising more than 50 phr of a copolymer containing polystyrene and polyisobutylene blocks; as an adhesive second layer, a second elastomer composition comprising more than 50 phr of an unsaturated thermoplastic styrene copolymer and optionally a liquid plasticizing agent at a content from 0 to less than 100 phr. This multilayer laminate possesses very good impermeability properties and a reduced hysteresis compared to layers based on butyl rubber, and also a high adhesion to a diene elastomer third layer.

Abstract: To provide a multilayer structure having high gas bather property and crack resistance as well as excellent fatigue resistance, an inner liner for a pneumatic tire using the multilayer structure, and a pneumatic tire comprising the inner liner. According to the present invention, the multilayer structure includes a barrier layer 2 made of polymer material with 50% or less elongation at break conforming to JIS K 7113 at 20° C. and 65% RH and an elastomer layer 3 made of polymer material with 100% or more elongation at break conforming to JIS K 7113 at 20° C. and 65% RH, wherein a plastic deformation amount at the time of 100% strain input is larger than a deformation amount at a tolerance point.

Abstract: A method for making a compartmentalized sealant strip and barrier assembly 10 has the steps of co-extruding a barrier strip 9 of non-sealant elastomeric material with a plurality of projecting linear extending walls 9c and a sealant strip 11 wherein the sealant strip 11 is formed on one side of the barrier strip 9 filling the space between the plurality of projecting walls 9c to form a plurality of linearly extending rows of sealant 11 across the transverse width of the co-extrusion to form the compartmentalized sealant strip and barrier assembly 10. The step of co-extruding may further include the step of: forming the projecting walls 9c on an inclined angle relative to a plane perpendicular to the width of the assembly 10.