Patent application number | Description | Published |
20090078352 | Pneumatic Tire Having Built-In Sealant Layer And Preparation Thereof - In one embodiment, a pneumatic tire having a built-in sealant layer, before cure, includes an unvulcanized pneumatic tire assembly having an outer circumferential rubber tread and a supporting carcass. A precursor sealant layer is situated between the supporting carcass and an innermost rubber inner liner. The precursor sealant layer includes a non-flowing polyurethane composition that is neither gel-like nor tacky and is self-supporting. The precursor sealant layer, during curing of the unvulcanized pneumatic tire assembly, thermally degrades so as to provide a gel-like and tacky, self-healing polyurethane composition which defines the built-in sealant layer. The resulting tire, with its innermost polyurethane composition, allows for elimination or reduction in blister formation by reducing or elimination the amount of gases typically given off by organoperoxide-butyl based sealant layers, such as when the tire is at its running temperature. Consequently, the thickness of the inner liner may be reduced. | 03-26-2009 |
20090078353 | Pneumatic Tire Having Built-In Sealant Layer And Preparation Thereof - The present invention is directed to a pneumatic tire having a built-in sealant layer and its preparation. In one embodiment, the pneumatic tire includes an outer circumferential rubber tread and a supporting carcass. A rubber inner liner is disposed inwardly from the supporting carcass. A built-in sealant layer is situated adjacent an innermost gas permeable layer and disposed inwardly from the rubber inner liner. The built-in sealant layer provides self-sealing properties to the pneumatic tire. The tire, with its innermost gas permeable layer, allows for elimination or reduction in blister formation in the tire. The pneumatic tire can be prepared by positioning the gas permeable layer on a tire-building apparatus. Next, a precursor sealant layer is positioned directly on the gas permeable layer. The rubber inner liner is disposed outwardly of the precursor sealant layer followed by the tire carcass then the rubber tire tread on the tire carcass. | 03-26-2009 |
20090084482 | Pneumatic tire having built-In sealant layer and preparation thereof - A pneumatic tire is provided which includes an outer circumferential rubber tread and a supporting carcass. A rubber inner liner is disposed inwardly from the supporting carcass. A built-in sealant layer is situated adjacent to an innermost removable barrier layer and disposed inwardly from the rubber inner liner. The built-in sealant layer provides self-sealing properties to the pneumatic tire. The pneumatic tire, with its innermost removable barrier layer, keeps the sealant layer from sticking to a tire-building apparatus during tire assembly and, after curing of the assembled tire, is eventually removed to permit gas from the built-in sealant layer to become part of the tire's inflation air to prevent or reduce instances of inner liner blister formation. | 04-02-2009 |
20090084483 | Pneumatic Tire Having Built-In Sealant Layer And Preparation Thereof - The present invention is directed to a pneumatic tire having a built-in sealant layer and its preparation. In one embodiment, the pneumatic tire includes an outer circumferential rubber tread and a supporting carcass. An optional rubber inner liner is disposed inwardly from the supporting carcass. A built-in sealant layer is disposed inwardly from the rubber inner liner. The built-in sealant layer provides self-sealing properties to the pneumatic tire. A gas permeable layer is situated adjacent an innermost rubber inner liner and the built-in sealant layer. The innermost rubber inner liner has a plurality of spaced apart openings extending therethrough, which are covered by the gas permeable layer. The tire, with its innermost inner liner with holes and the gas permeable layer, allows for elimination or reduction in blister formation in the tire by permitting gas from the built-in sealant layer to escape. | 04-02-2009 |
20090159165 | TIRE TREAD COMPOSITE AND RETREADED RUBBER TIRE - This invention relates to a cured tire tread composite and to the retreading of a tire. The cured tire tread composite is comprised of a cured tire tread having a removable protective film molded onto one of its surfaces. The invention further relates to the retreading of a tire carcass and a retreaded tire. | 06-25-2009 |
20090255613 | TIRE WITH TREAD HAVING AN INTERMEDIATE RUBBER LAYER CONTAINING A MICROSPHERE DISPERSION - The invention relates to a tire with a tread having an intermediate rubber layer which contains a dispersion of high strength hollow glass and/or ceramic microspheres. In particular, such tire tread is comprised of at least three radially disposed zones of rubber layers composed of a radially outer tread rubber cap layer, a radially inner tread base rubber layer and an intermediate, transition rubber layer positioned between said outer rubber cap layer and said inner rubber base layer. The intermediate tread rubber contains a dispersion of glass and/or ceramic microspheres together with a coupling agent. | 10-15-2009 |
20090288750 | TIRE WITH AIR BARRIER LAYER - The present invention relates to a pneumatic tire having an air barrier layer, particularly an integral pneumatic tire innerliner, for prevention, or retardation, of air permeation from its inner chamber to the atmosphere through the carcass of the tire. The innerliner is comprised of an annular, cylindrical, hoop of a film having its ends overlapped and heat sealed together. The film is comprised of a continuous thermoplastic polymer phase which contains a dispersion therein of cured rubber domains, particularly cured low unsaturation rubber domains. In one embodiment, one surface of the film contains a thin bonding layer to aid in bonding the film to an unsaturated rubber-containing tire carcass. In one embodiment, the overlapping portion of the ends of the film have a thin rubber layer positioned therebetween. | 11-26-2009 |
20100051156 | FILM TO KEEP TIRE SURFACE CLEAN AND SIMULTANEOUSLY PRIME FOR BETTER ADHESION OF BALANCE PAD - 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. | 03-04-2010 |
20100154946 | TIRE TREAD STRIP AND METHOD OF PREPARATION - This invention relates to a tire tread strip and method of preparation. | 06-24-2010 |
20100154959 | METHOD AND APPARATUS FOR BUILDING A TIRE HAVING A PUNCTURE SEALANT - A tire with a built in sealant comprising: sidewalls, a supporting tire carcass comprised of one or more layers of ply, a pair of beads, and an outer circumferential tread, wherein the sidewalls extend radially inward from the axial outer edges of the tread portion to join the respective beads, and a layer of sealant disposed between the inner liner and a cover layer, the carcass of the tire has a radially innermost layer, wherein the sealant is located over said gas permeable liner, and has a first outer edge and a second outer edge, wherein on each side of said sealant adjoining with the first outer edge and the second outer edge is two or more layers of butyl rubber inner liner. | 06-24-2010 |
20110146860 | PNEUMATIC TIRE WITH BUILT-IN INNERMOST ADHESIVE LAYER AND POST CURE APPLIED SEALANT - The present invention is directed to a cured pneumatic tire having a built-in innermost adhesive layer co-cured and thereby integral therewith and post tire cure applied sealant thereon. | 06-23-2011 |
20110146869 | PNEUMATIC TIRE HAVING A BUILT-IN SEAMLESS POLYURETHANE SEALANT LAYER AND PREPARATION THEREOF - The present invention is directed to a pneumatic tire having a built-in seamless polyurethane sealant layer and its preparation. | 06-23-2011 |
20110226399 | PNEUMATIC TIRE WITH BUILT-IN SEALANT LAYER COMPOSITE - The present invention is directed to a pneumatic tire with a built-in sealant layer composite where the composite is composed of polyurethane with a thin layer of at least one of particulate filler, short fibers and non-woven microfiber. In one embodiment, said polyurethane sealant composite is comprised of a plurality of circumferentially extending layers comprised of a first polyurethane sealant layer, a second polyurethane sealant layer and a thin layer of polyurethane sealant-containing non-woven microfiber positioned between said first and second polyurethane layers. In another embodiment, said polyurethane sealant is a composite comprised of a polyurethane sealant layer containing a thin layer of at least one of particulate filler and short fibers. | 09-22-2011 |
20110308704 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: disposing a foam noise damper onto a virgin surface of a green tire innerliner; disposing a barrier layer over the foam noise damper, the foam noise damper being located between the virgin surface of the green tire innerliner and the barrier layer; incorporating the green tire innerliner into a green tire; curing the green tire; and removing the barrier layer to reveal the foam noise damper. | 12-22-2011 |
20110308705 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: pressing a barrier layer onto an exposed virgin surface of a green tire innerliner to adhere the barrier layer to the virgin surface and thereby form a protected green innerliner; curing the protected green innerliner; removing the barrier layer to reveal the virgin surface; and securing a foam noise damper to the virgin surface. | 12-22-2011 |
20110308706 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of:
| 12-22-2011 |
20120103487 | PNEUMATIC TIRE WITH TIRE LAYER AND DVA BARRIER LAYER ADHERED THERETO AND METHOD OF MAKING SAME - A pneumatic tire and method of making is disclosed, which includes, in one embodiment, an outer tread and a barrier layer disposed inwardly of the outer tread. The barrier layer includes a dynamically vulcanized alloy, which has an engineering resin as a continuous phase and at least a partially vulcanized rubber as a dispersed phase, and an inner surface and an outer surface. A tire layer, e.g., a ply layer, is situated adjacent at least one of the inner or outer surfaces of the barrier layer. The tire layer includes a rubber formulation having 100 parts of natural rubber, a synthetic rubber, or blends or combinations thereof, 1-10 phr of a melamine derivative, e.g., hexamethoxymethylmelamine, and at least one reinforcing filler. The tire is devoid of an adhesive layer between the barrier layer and the tire layer, and the tire layer adheres directly to the barrier layer after tire cure. | 05-03-2012 |
20120111462 | Self-Balancing Pneumatic Tire and Method of Making the Same - A self-balancing pneumatic tire is provided having a built-in balancing gel system. In one embodiment, the tire, before cure, includes a green pneumatic tire assembly having an uncured tread defining an outermost layer; a first barrier layer; a second barrier layer situated adjacent the first barrier layer and intermediate the first barrier layer and the tread; and first and second gel precursors. The gel precursors are non-flowable prior to cure but flowable after cure. The gel precursors are respectively contained within spaced-apart first and second circumferential regions defined by confronting, non-contacting surfaces of the first barrier layer and the second barrier layer, each circumferential region further situated proximate opposing sidewalls of the tire and having a width of about 5 percent to about 25 percent of a final tread width obtained upon curing of the uncured tire assembly. In one example, the first and/or second barrier layers can be discontinuous. | 05-10-2012 |
20120118465 | PNEUMATIC TIRE WITH BARRIER LAYER AND METHOD OF MAKING THE SAME - A pneumatic tire and a method of making a tire are provided. The tire includes a tire tread, a tire layer, and a barrier layer. The tire layer is circumferentially disposed inwardly of the tire tread and includes a first end and a second end situated adjacent each other to define a butt joint. The barrier layer includes a first end and a second end, a portion of the first end of the barrier layer overlaps the second end by about 1.5 cm or more to define a lap joint, and where the first end of the barrier layer is received between and extends beyond the butt joint such that the first end of the tire layer is sandwiched between the lap joint. | 05-17-2012 |
20120125498 | Balance Pads For Balancing Pneumatic Tires - Balance pads for balancing pneumatic tires having DVA innerliners, and methods for balancing such pneumatic tires, are disclosed. In one embodiment, a balance pad is provided for balancing a pneumatic tire having a DVA innerliner. The balance pad includes an outer layer having a dynamically vulcanized alloy, which comprises an engineering resin as a continuous phase and at least a partially vulcanized rubber as a dispersed phase. The balance pad further includes an inner layer having a rubber or plastic compound that is bonded to the outer layer. The outer layer is capable of being bonded to an inner surface of a tire innerliner, which includes a dynamically vulcanized alloy having an engineering resin as a continuous phase and at least a partially vulcanized rubber as a dispersed phase. | 05-24-2012 |
20120125507 | TIRE WITH FOAMED NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: obtaining a tire having an innerliner, the innerliner having a surface facing an interior cavity of the tire; applying a foamable liquid to the surface; and foaming the foamable liquid to form a solid foam noise damper secured to the tire innerliner. | 05-24-2012 |
20120125525 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: pressing a barrier layer onto an exposed virgin surface of a green tire innerliner to adhere the barrier layer to the virgin surface and thereby form a protected green innerliner; exposing the protected green innerliner to the release agent; curing the protected green innerliner; removing the barrier layer to reveal the virgin surface substantially free of the release agent; applying a foamable liquid to the virgin surface; and foaming the foamable liquid to form a foam noise damper secured to the virgin surface. | 05-24-2012 |
20120128994 | PROMOTING UNCURED TACK AND CURED ADHESION FOR TIRE COMPONENT RUBBER COMPOSITIONS INCLUDING A TREAD SPLICE - This invention relates to promoting building tack for an uncured rubber composition and promoting cured adhesion between rubber compositions as components for a tire and a tire prepared thereby. The uncured building tack and cured adhesion is observed to be promoted, for example, by application of a composition containing rosin ester or hydrogenated rosin ester and at least one of uncured sulfur curable rubber, sulfur based rubber curative, reinforcing filler, tackifier resin and high boiling organic solvent. In one embodiment, the invention relates to a tire rubber tread splice. | 05-24-2012 |
20120186725 | TIRE TREAD STRIP AND METHOD OF PREPARATION - This invention relates to a tire tread strip and method of preparation. | 07-26-2012 |
20120222795 | TIRE WITH AIR BARRIER LAYER - The present invention relates to a pneumatic tire having an air barrier layer, particularly an integral pneumatic tire innerliner, for prevention, or retardation, of air permeation from its inner chamber to the atmosphere through the carcass of the tire. The innerliner is comprised of an annular, cylindrical, hoop of a film having its ends overlapped and heat sealed together. The film is comprised of a continuous thermoplastic polymer phase which contains a dispersion therein of cured rubber domains, particularly cured low unsaturation rubber domains. In one embodiment, one surface of the film contains a thin bonding layer to aid in bonding the film to an unsaturated rubber-containing tire carcass. In one embodiment, the overlapping portion of the ends of the film have a thin rubber layer positioned therebetween. | 09-06-2012 |
20130087267 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: pressing a barrier layer onto an exposed virgin surface of a green tire innerliner to adhere the barrier layer to the virgin surface and thereby form a protected green innerliner; curing the protected green innerliner; removing the barrier layer to reveal the virgin surface; and securing a foam noise damper to the virgin surface. | 04-11-2013 |
20130146189 | RETREADED TIRE AND METHOD OF PREPARATION - The invention relates to retreaded tires and method of preparation. | 06-13-2013 |
20140295177 | FILM TO KEEP TIRE SURFACE CLEAN AND SIMULTANEOUSLY PRIME FOR BETTER ADHESION OF BALANCE PAD - The subject invention relates to a method of preparing a tire inner surface to attain better adhesion of balance pads, puncture sealants, and noise reduction foams. In this method a strip of multi-axially stretchable film is adhered to the inner surface of an uncured tire with a pressure-sensitive adhesive. Then a release agent coating is applied to the film strip on the inner surface of the uncured tire which is subsequently cured in a suitable mold at an elevated temperature. The cured tire is then removed from the mold and after allowing the cured tire to cool the annular circumferential film strip is removed from the inner surface of the tire to provide a circumferential release coating-free tire inner surface onto which balance pads, puncture sealants, and noise reduction foams can be adhered. | 10-02-2014 |