Patent application number | Description | Published |
20090283194 | PNEUMATIC TIRE AND METHOD OF MANUFACTURING THE SAME - Provided are a pneumatic tire with a durability which is improved by preventing oxygen deterioration of coating rubber of a reinforcement layer, and a method of manufacturing the pneumatic tire. The pneumatic tire according to the present invention is a pneumatic tire including a reinforcement layer having reinforcement cords. In the pneumatic tire, the reinforcement layer is covered with thin films each made of a thermoplastic resin or a thermoplastic elastomer composition obtained by blending a thermoplastic resin with an elastomer in a way that the reinforcement is wrapped with the thin films. A method of manufacturing the pneumatic tire includes: arranging a thin film made of a thermoplastic resin or a thermoplastic elastomer composition on an outer periphery of a making drum, the thermoplastic elastomer composition being obtained by blending a thermoplastic resin with an elastomer; arranging a reinforcement layer including reinforcement cords on an outer periphery of the thin film; arranging another thin film on an outer periphery of the reinforcement layer; covering the reinforcement layer with these thin films in a way that the reinforcement layer is wrapped with the thin films; making an uncured tire including the reinforcement layer; and curing the uncured tire. | 11-19-2009 |
20090311548 | MULTILAYER BODY AND PNEUMATIC TIRE USING SAME - A laminate having a superior bondability with an unvulcanized rubber composition layer, comprising (A) a thermoplastic elastomer layer comprising a thermoplastic resin, as a matrix, in which a rubber phase having a halogenated isobutylene-isoprene copolymer and/or halogenated isobutylene p-methyl styrene copolymer is dispersed, as a polymer ingredient, and (B) a tackifier/adhesive composition layer containing 100 parts by weight of a styrene-based copolymer having a double bond, 10 to 400 parts by weight of a metal oxide and a vulcanizer and/or vulcanization accelerator. | 12-17-2009 |
20100108212 | PNEUMATIC TIRE - Provided is a pneumatic tire enabling an easy estimation of the presence or absence of an internal failure of the tire only by the observation of the external appearance of the tire, by interposing a detection layer mainly composed of at least one of a thermoplastic elastomer and a thermoplastic resin, which has a softening point of 50° C. to 150° C., in an interlayer between materials constituting the tire. | 05-06-2010 |
20100314030 | MANUFACTURING METHOD FOR PNEUMATIC TIRE - Provided is a manufacturing method for a pneumatic tire including the steps of: shaping a cylindrical film formed of a thermoplastic resin or a thermoplastic elastomer composite in which a thermoplastic resin is blended with an elastomer, folding the film into a sheet shape, laminating rubber layers on both surfaces of the folded film, opening the laminate of the film and the rubber layers into a cylindrical shape, fitting the laminate thus opened on a tire making drum, forming the tire pneumatic tire including the film as an air permeation preventing layer, and curing the uncured tire. In the method, when the rubber layers are laminated on the both surfaces of the folded film, positions of the rubber layers in a width direction are displaced from each other such that an end portion of one of the rubber layers is arranged to protrude from an end portion of the film and an end portion of the other one of the rubber layer is arranged on an inner side, in the width direction, of the protruding end portion of the one of the rubber layers, and the protruding end portion of the one of the rubber layers is caused to cover the end portion of the other one of the rubber layers in a state where the laminate is fitted on the tire making drum. By employing the manufacturing method for the pneumatic tire, troubles due to a splice portion of the rubber layers can be reduced. | 12-16-2010 |
20130014880 | CONSTRUCTION COMPRISING TIE LAYER - A vulcanizable layered composition comprising at least two layers and at least one tie layer. The first layer of the two layers comprises an fluid permeation prevention layer, the second layer of the two layers comprises at least one high diene rubber, and the tie layer comprises about 50 to about 100 weight % of at least one halogenated isobutylene containing elastomer; up to about 50 weight % of at least one high diene elastomer; about 20 to about 50 weight % of at least one filler; up to about 30 weight % of at least one processing oil; about 1 to about 20 parts per hundred (phr) of at least one tackifier; and about 0.2 to about 15 parts per hundred of rubber (phr) of a curing system for the elastomers. The fluid permeation prevention layer preferably comprises a thermoplastic engineering resin component and an elastomer component. | 01-17-2013 |
20130056122 | Pneumatic Tire - A pneumatic tire using, as an inner liner layer, a thermoplastic elastomer comprising a thermoplastic resin matrix, in which a rubber component is dispersed a surface of the inner liner layer is covered with a protective layer, whereby a weathering resistance, damage resistance and fatigue resistance of the film liner of the inner liner layer at the time of tire storage are improved. | 03-07-2013 |
20140283975 | PNEUMATIC TIRE - A pneumatic tire using, as an inner liner layer, a thermoplastic elastomer comprising a thermoplastic resin matrix, in which a rubber component is dispersed a surface of the inner liner layer is covered with a protective layer, whereby a weathering resistance, damage resistance and fatigue resistance of the film liner of the inner liner layer at the time of tire storage are improved. | 09-25-2014 |
Patent application number | Description | Published |
20080314491 | Construction Comprising Tie Layer - This disclosure relates to a vulcanizable layered composition comprising at least two layers and at least one tie layer. The first of the two layers comprises a fluid permeation prevention layer and the second comprises at least one high diene rubber. The tie layer comprises, a mixture, in parts by weight relative to 100 weight parts of rubber of: (1) 10 to 70 parts by weight of epoxidized natural rubber; (2) 30 to 90 parts by weight of at least one high diene elastomer; (3) 20 to 90 parts by weight of at least one filler; (4) 1 to 20 parts by weight of at least one tackifier, —and (5) at least 0.2 to 15 parts by weight of curing system for the elastomers and rubbers; The fluid permeation prevention layer comprises: (A) at least one thermoplastic engineering resin component; and (B) at least one elastomer component, wherein (B) is dispersed in a vulcanized or partially vulcanized state, as a discontinuous phase, in a matrix of component (A). | 12-25-2008 |
20080314492 | Construction Comprising Tie Layer - This disclosure relates to a vulcanizable layered composition comprising at least two layers and at least one tie layer, wherein the first layer of the two layers comprises an fluid permeation prevention layer, the second layer of the two layers comprises at least one high diene rubber, and the tie layer comprises a mixture of:
| 12-25-2008 |
20090068476 | Laminate and pneumatic tire using the same - A laminate containing a layer of a thermoplastic elastomer (A) containing an elastomer component dispersed in a thermoplastic resin matrix in which, a layer of an adhesive composition (B) containing a styrene-based copolymer having double bonds, a vulcanization agent and/or a vulcanization accelerator and a reinforcing filler, and a layer of an unvulcanized rubber composition (C), wherein the laminate is made integral at the time of vulcanization of rubber, whereby the adhesiveness of the laminate between a thermoplastic elastomer composition layer and unvulcanized rubber composition layer is improved. | 03-12-2009 |
20090131592 | LAMINATE OF THERMOPLASTIC RESIN AND RUBBER AND PNEUMATIC TIRE USING THE SAME - A laminate of a thermoplastic resin and rubber comprising a thermoplastic resin layer (A) made of a matrix of a polyamide resin matrix containing an elastomer dispersed therein and an unvulcanized diene-based rubber layer (B) containing a diene-based rubber and a low molecular weight diene-based rubber having an acid anhydride group and having a weight average molecular weight of 500 to 50,000 laminated partially or totally in at least one layer each to form a laminate integrated at the time of vulcanization and a pneumatic tire using the same. | 05-21-2009 |
20090218024 | CONSTRUCTION COMPRISING TIE LAYER - This disclosure relates to a vulcanizable layered composition comprising at least two layers and at least one tie layer, wherein the first layer of the two layers comprises an fluid permeation prevention layer, the second layer of the two layers comprises at least one high diene rubber, and the tie layer comprises a mixture of: (1) about 50 to about 100 weight % of at least one halogenated isobutylene containing elastomer; (2) about 0 to about 50 weight % of at least one high diene elastomer; (3) about 20 to about 50 weight % of at least one filler; (4) about 0 to about 30 weight % of at least one processing oil; (5) about 1 to about 20 parts per hundred (phr) of at least one tackifier; and (6) at least about 0.2 to about 15 parts per hundred of rubber (phr) of a curing system for the elastomers; wherein THE fluid permeation prevention layer preferably comprises: (A) at least 10% by weight, based on the total weight of the polymer composition, of at least one thermoplastic engineering resin component, preferably one or more nylon resins; and (B) at least 10% by weight, based on the total weight of the polymer composition, of at least one elastomer component, preferably a brominated isobutylene p-methylstyrene copolymer, and where the total amount of the component (A) and the component (B) is not less than 30% by weight based on the total weight of the polymer composition, wherein the elastomer component (B) is dispersed in a vulcanized or partially vulcanized state, as a discontinuous phase, in a matrix of the thermoplastic resin component (A) in the polymer composition. | 09-03-2009 |
20100193098 | PNEUMATIC TIRE - A pneumatic tire using, as an inner liner layer, a thermoplastic elastomer comprising a thermoplastic resin matrix, in which a rubber component is dispersed a surface of the inner liner layer is covered with a protective layer, whereby a weathering resistance, damage resistance and fatigue resistance of the film liner of the inner liner layer at the time of tire storage are improved. | 08-05-2010 |