Composition For Puncture Proof Tire Liner Or In Emergency Tire Repair (e.g., Tire Inflation, Etc.) Or Process Of Preparing Patents (Class 523/166)
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Patent number: 8242196Abstract: The present invention provides a tire puncture sealant which has a reduced viscosity at low temperatures and better injectability at low temperatures while exerting excellent initial sealing performance and storage stability. The present invention also provides a tire puncture sealant which further has better injectability at high temperatures while exerting the seal retention performance. The present invention relates to a tire puncture sealant including: a natural rubber latex; a tackifier; and propylene glycol, wherein the amount of the propylene glycol in 100% by mass of a liquid portion of the puncture sealant is 55% by mass or more, and also relates to a tire puncture sealant including: a natural rubber latex; a tackifier; propylene glycol; and a nonionic surfactant, wherein the nonionic surfactant is a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether.Type: GrantFiled: June 29, 2010Date of Patent: August 14, 2012Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Takaaki Ishida, Hiroyuki Nakagawa, Naoya Ichikawa
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Patent number: 8236883Abstract: The present disclosure provides a safety tire having a puncture-resistant, bulletproof, and leakproof capability between about ?45° C. to about 120° C. without any damaging process to the inside wall of the tire, but just by spray coating a layer of leakproof and hermetically-repairing macromolecular material with a thickness of about 2 mm to about 8 mm to the inside wall of the tire that does not have an inner tube. The present disclosure also provides the components of the leakproof and hermetically-repairing macromolecular material and the method to prepare the puncture-resistant bulletproof and leakproof safety tires.Type: GrantFiled: January 11, 2008Date of Patent: August 7, 2012Inventors: Hailong Zhang, Donghua Hu
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Patent number: 8183309Abstract: The present invention provides a tire puncture sealant including a rubber latex and 1,3-propanediol, which has a reduced viscosity at low temperatures, has better injectability at low temperatures, and is also excellent in storage stability, initial sealing performance, and seal retention performance.Type: GrantFiled: June 28, 2010Date of Patent: May 22, 2012Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Naoya Ichikawa, Takaaki Ishida, Hiroyuki Nakagawa
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Patent number: 8156979Abstract: The present invention relates to a pneumatic tire which contains a built-in zoned puncture sealant layer. The zoned puncture sealant layer is comprised of organoperoxide depolymerized butyl rubber zones comprised of a central primary zone and lateral zones joined together to form a unitary sealant layer. The sealant of the lateral zones of the sealant layer is of a higher storage modulus (G?) than the sealant of the central zone.Type: GrantFiled: November 19, 2007Date of Patent: April 17, 2012Inventors: Joseph Alan Incavo, Thomas Roy Fuhrig, Warren James Busch, Patrick David Marks
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Patent number: 8148448Abstract: A tire puncture sealant having both excellent sealing performance and excellent storage performance, specifically a tire puncture sealant containing a natural rubber latex (A) and a VEVA copolymer resin emulsion (B), wherein the solid content mass of the natural rubber latex (A)/solid content mass of the VEVA copolymer resin emulsion (B) is between 80/20 and 15/85.Type: GrantFiled: June 21, 2010Date of Patent: April 3, 2012Assignee: The Yokohama Rubber Co., LtdInventors: Hideyuki Takahara, Takahiro Okamatsu
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Publication number: 20120041099Abstract: A tire puncture sealant including a rubber latex and/or a resin emulsion, and an acetylene alcohol and/or a derivative thereof.Type: ApplicationFiled: August 10, 2011Publication date: February 16, 2012Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventor: Hideyuki Takahara
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Patent number: 8110618Abstract: A sealing agent stock solution 20 is prepared by preparing a mixed solution 14 by mixing a rubber latex, a resin emulsion and a surfactant, and a predetermined amount of water in a solution preparation vessel 12, followed by adding an anti-freeze agent 18 to the mixed solution 14. The sealing agent stock solution 20 is held (left standing still) at least over for 24 hr or more and preferably over for 48 hr or more without stirring in the solution preparation vessel 12, followed by filtering the sealing agent stock solution 20 with a filter member 26 made of a mesh filter having the mesh number from 50 to 400 mesh to remove latex aggregates 36 generated in the sealing agent stock solution 20, and thereby a sealing agent 10 that does not contain the latex aggregates 36 is produced.Type: GrantFiled: November 15, 2007Date of Patent: February 7, 2012Assignee: Bridgestone CorporationInventors: Hideshi Yanagi, Narukuni Hirata, Haruki Minoshima, Daisuke Sugio
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Publication number: 20120010325Abstract: The present invention provides a tire puncture sealant which has a reduced viscosity at low temperatures and better injectability at low temperatures while exerting excellent initial sealing performance and storage stability. The present invention also provides a tire puncture sealant which further has better injectability at high temperatures while exerting the seal retention performance. The present invention relates to a tire puncture sealant including: a natural rubber latex; a tackifier; and propylene glycol, wherein the amount of the propylene glycol in 100% by mass of a liquid portion of the puncture sealant is 55% by mass or more, and also relates to a tire puncture sealant including: a natural rubber latex; a tackifier; propylene glycol; and a nonionic surfactant, wherein the nonionic surfactant is a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether.Type: ApplicationFiled: September 20, 2011Publication date: January 12, 2012Inventors: Takaaki ISHIDA, Hiroyuki Nakagawa, Naoya Ichikawa
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Publication number: 20110213050Abstract: Process for manufacturing a self-sealing elastomer composition, wherein the process comprises the following steps: firstly a masterbatch comprising at least one diene elastomer and a thermoplastic plasticizing hydrocarbon resin with a content greater than 30 phr is manufactured by compounding these various components in a mixer at a temperature or up to a temperature called the “hot compounding temperature” which is above the softening point of the hydrocarbon resin; and then at least one crosslinking system is incorporated into the masterbatch thus prepared, by compounding everything, in the same mixer or in a different mixer, at a temperature or up to a maximum temperature which is kept below 100° C., in order to obtain said self-sealing composition, and wherein at least one liquid plasticizer having a glass transition temperature (Tg) below ?20° C. is furthermore incorporated in an amount of less than 60 phr into said masterbatch or into said composition.Type: ApplicationFiled: July 23, 2009Publication date: September 1, 2011Inventors: Frederic Pialot, Damlen Fombelle, Bozena Voge, Jose Merino Lopez
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Publication number: 20110207848Abstract: A method for manufacturing a puncture-sealing agent, which effectively prevents gelification of the puncture-sealing agent caused by agglomerates of rubber latex and that can enhance the productivity of the puncture-sealing agent is provided. The manufacturing method includes a first mixing process of mixing an antifreeze liquid with water to obtain a mixture liquid A1; a second mixing process of adding the mixture liquid A1 dropwise into a rubber latex that is being stirred and performing mixing to obtain a mixture liquid A2, while increasing the stirring speed as a liquid amount of the mixture liquid A2 increases; and a third mixing process of mixing the mixture liquid A2 with a tackifier. An amount of variation in the stirring speed is preferably from 0.1 rpm/mm to 6.0 rpm/mm, and a dropwise-addition rate of the mixture liquid A1 is preferably from 0.5 kg/min to 500 kg/min.Type: ApplicationFiled: October 22, 2009Publication date: August 25, 2011Applicant: BRIDGESTONE CORPORATIONInventors: Narukuni Hirata, Shinichi Eguchi, Minoshima Haruki
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Publication number: 20110198010Abstract: A self-sealing elastomer composition that can be used especially as a puncture-resistant layer in an inflatable article, comprising: as predominant elastomer, an unsaturated diene elastomer; a thermoplastic hydrocarbon plasticizer resin with a weight content of between 30 and 90 phr; a liquid plasticizer, the Tg (glass transition temperature) of which is below ?20° C., with a weight content between 0 and 60 phr; and 0 to less than 30 phr of a filler. Also disclosed is an article such as a tire provided with the puncture-resistant layer comprising the self-sealing elastomer composition. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the inflatable article, a puncture-resistant airtight laminate.Type: ApplicationFiled: July 23, 2009Publication date: August 18, 2011Inventors: Bozena Voge, Didier Vasseur, Jose Merino Lopez, Frederic Pialot
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Publication number: 20110201722Abstract: A tire puncture sealant is disclosed and described. Such a sealant may include a natural rubber latex and a surfactant, wherein a content of the surfactant is from 1.0 to 6.0 mass % of a solid content of the natural rubber latex and the surfactant includes a non-ionic surfactant and an anionic surfactant at a mass ratio where the non-ionic surfactant/the anionic surfactant=1.0/1.0 to 1.0/5.0.Type: ApplicationFiled: April 26, 2011Publication date: August 18, 2011Inventors: Hideyuki Takahara, Takahiro Okamatsu
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Publication number: 20110198009Abstract: Inflatable article such as a pneumatic tire provided with a puncture-resistant layer comprising, by way of a self-sealing composition, an elastomer composition comprising at least, as predominant elastomer, a thermoplastic stirene (TPS) elastomer, more than 200 phr of an extender oil and more than 20 phr of a hydrocarbon resin, the glass transition temperature of which is greater than 0° C. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the pneumatic article, an airtight puncture-resistant laminate.Type: ApplicationFiled: October 27, 2008Publication date: August 18, 2011Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, Michelin Recherche et Technique S.A.Inventors: José Merino-Lopez, Pierre Lesage, Bozena Voge
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Publication number: 20110174421Abstract: Self-sealing elastomer composition that can be used especially as a puncture-resistant layer in an inflatable article, comprising: as predominant elastomer, an unsaturated diene elastomer; between 30 and 90 phr of a hydrocarbon resin; and 0 to less than 30 phr of a filler. Also disclosed is an article such as a tire provided with a puncture-resistant layer comprising the self-sealing elastomer composition. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the inflatable article, a puncture-resistant airtight laminate.Type: ApplicationFiled: July 20, 2009Publication date: July 21, 2011Inventors: Bozena Voge, Didier Vasseur, Jose Merino Lopez, Frederic Pialot
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Patent number: 7981940Abstract: Provided is a method of treating a sealing compound, in order to recover from the inside of a pneumatic tire the sealing compound that was used for repairing a puncture, the sealing compound including an aqueous solution having at least rubber latex dispersed therein, the method comprising: solid-liquid separating, by injecting a treating agent into the inside of a pneumatic tire into which the sealing compound was injected, the treating agent comprising at least one of a salt that is a reaction compound of an acid and a base and/or a water-soluble organic solvent, mixing the treating agent with the sealing compound inside the pneumatic tire, and aggregating and solidifying the rubber latex in the sealing compound.Type: GrantFiled: May 26, 2005Date of Patent: July 19, 2011Assignee: Bridgestone CorporationInventors: Shinichi Iwasaki, Rieko Iwasaki, legal representative, Ryuji Izumoto, Daisuke Sugio
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Publication number: 20110144237Abstract: A tire puncture sealant having both excellent sealing performance and excellent storage performance, specifically a tire puncture sealant containing a natural rubber latex (A) and a VEVA copolymer resin emulsion (B), wherein the solid content mass of the natural rubber latex (A)/solid content mass of the VEVA copolymer resin emulsion (B) is between 80/20 and 15/85.Type: ApplicationFiled: June 21, 2010Publication date: June 16, 2011Inventors: Hideyuki Takahara, Takahiro Okamatsu
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Patent number: 7960448Abstract: A method for producing a puncture sealant, including: performing a first mixing to mix an anti-freezing agent and water; performing a second mixing to mix a mixed liquid obtained from the first mixing and a rubber latex; and performing a third mixing to mix a mixed liquid obtained from the second mixing and an adhesive agent.Type: GrantFiled: September 13, 2007Date of Patent: June 14, 2011Assignee: Bridgestone CorporationInventors: Narukuni Hirata, Ryuji Izumoto
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Publication number: 20110086944Abstract: A sealant, in particular for rubber articles, preferably for motor vehicle tires, comprises: 30-90 wt-% of at least one natural rubber latex dispersion; 0.1-10 wt-% of at least one ionic and/or non-ionic emulsifier and/or dispersing agent; 0.0001-10 wt-% of at least one protease; 5-40 wt-% of at least one aqueous adhesive resin dispersion; 1-50 wt-% of at least one antifreeze agent; 0.01-12 wt-% of decomposition products of a deproteinizing reaction; 0-30 wt-% of additional additives.Type: ApplicationFiled: August 6, 2010Publication date: April 14, 2011Inventors: Michael Schunack, Carla Recker, Mario Conde
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Patent number: 7868061Abstract: A puncture sealing agent for a tire is disclosed that has a rubber latex, an adhesive agent, and an anti-freezing agent, wherein glycerin, potassium acetate or a solution of glycerin and potassium acetate is used as the anti-freezing agent.Type: GrantFiled: June 13, 2008Date of Patent: January 11, 2011Assignee: Illinois Tool Works, Inc.Inventors: Steven Cegelski, Shees Sulemanji
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Publication number: 20100331449Abstract: The present invention provides a tire puncture sealant which has a reduced viscosity at low temperatures and better injectability at low temperatures while exerting excellent initial sealing performance and storage stability. The present invention also provides a tire puncture sealant which further has better injectability at high temperatures while exerting the seal retention performance. The present invention relates to a tire puncture sealant including: a natural rubber latex; a tackifier; and propylene glycol, wherein the amount of the propylene glycol in 100% by mass of a liquid portion of the puncture sealant is 55% by mass or more, and also relates to a tire puncture sealant including: a natural rubber latex; a tackifier; propylene glycol; and a nonionic surfactant, wherein the nonionic surfactant is a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Inventors: Takaaki Ishida, Hiroyuki Nakagawa, Naoya Ichikawa
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Publication number: 20100331448Abstract: The present invention provides a tire puncture sealant including a rubber latex and 1,3-propanediol, which has a reduced viscosity at low temperatures, has better injectability at low temperatures, and is also excellent in storage stability, initial sealing performance, and seal retention performance.Type: ApplicationFiled: June 28, 2010Publication date: December 30, 2010Inventors: Naoya ICHIKAWA, Takaaki Ishida, Hiroyuki Nakagawa
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Patent number: 7841370Abstract: The present invention is directed to a method of reducing noise transmission in a pneumatic tire and wheel assembly comprising an inflation cavity, the method comprising the step of adding to the inflation cavity from about 0.1 to about 1 volume percent, based on the volume of the inflation cavity, of a repeatably foamable liquid.Type: GrantFiled: July 25, 2007Date of Patent: November 30, 2010Assignee: The Goodyear Tire & Rubber CompanyInventors: Marc Engel, Jan Leyssens, Wolfgang Gnoerich
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Patent number: 7825181Abstract: The present invention relates to modified layered fillers made from layered fillers and modifying agents and processes to produce the same. The invention also relates to nanocomposite compositions made from these modified layered fillers and elastomers, and processes to produce the same, and their use in articles.Type: GrantFiled: October 7, 2005Date of Patent: November 2, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Caiguo Gong, Weiqing Weng, Mun Fu Tse, Anthony J. Dias, James P. Stokes, Alan A. Galuska, Beverly J. Poole, Carmen Neagu, Kriss R. Karp, Molly W. Johnston
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Patent number: 7807732Abstract: A tire sealant composition for use in pneumatic tires is provided. The tire sealant composition primarily serves to seal the tire around the wheel rim and particularly in the tread area of the tire against punctures. The composition includes a naturally derived viscous carrier fluid and at least one fibrous material, polymeric material or combination of both, wherein the composition remains fluid in use. The naturally derived viscous carrier fluid is preferably desugared molasses (less than 30% by weight sucrose) and is able to sustain a temperature of ?30° F. (?34.4° C. and below) without freezing. The tire sealant composition is fire-retardant, non-toxic, non-corrosive and non-abrasive and is environmentally friendly.Type: GrantFiled: January 30, 2007Date of Patent: October 5, 2010Inventor: Robert D. Fogal, Sr.
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Publication number: 20100222455Abstract: A sealant composition for the sealing of a punctured tyre including a liquid carrier, one or more viscosity and suspending agents, one or more fillers and sealants, and one or more polyacrylates.Type: ApplicationFiled: October 9, 2008Publication date: September 2, 2010Inventor: Terence Dowel
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Patent number: 7759412Abstract: A tire puncture sealant including a urethane emulsion, an acrylic emulsion or a polyolefin emulsion, and an antifreezing agent has a comparatively low viscosity and an excellent storage stability while showing sealing properties equivalent to those of a conventional tire puncture sealant. A tire puncture sealant including a synthetic resin emulsion and an antifreezing agent, and having a hydrogen ion exponent of 5.5 to 8.5 has a less pungent odor and hardly causes corrosion of steel cord. A tire puncture sealant including a chloroprene emulsion and an antifreezing agent and having a hydrogen ion exponent of less than 9.0 has a comparatively low viscosity and a less odor while showing sealing properties equivalent to those of a conventional tire puncture sealant.Type: GrantFiled: February 27, 2007Date of Patent: July 20, 2010Assignee: The Yokohama Rubber Co., Ltd.Inventor: Takahiro Okamatsu
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Patent number: 7745511Abstract: An emulsion coagulant for coagulating a tire puncture sealant containing emulsion particles includes a mineral which induces aggregation of the emulsion particles by one or both of weakening of surface charge of the emulsion particles and formation of hydrogen bond between the mineral and the emulsion particles, and a gelation agent. The emulsion coagulant enables easy recovery of the tire puncture sealant from a tire as well as easy disposal of the recovered sealant.Type: GrantFiled: July 17, 2008Date of Patent: June 29, 2010Assignee: The Yokohama Rubber Co., Ltd.Inventors: Takahiro Okamatsu, Kazushi Kimura
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Publication number: 20100152323Abstract: A tire puncture sealant including a urethane emulsion, an acrylic emulsion or a polyolefin emulsion, and an antifreezing agent has a comparatively low viscosity and an excellent storage stability while showing sealing properties equivalent to those of a conventional tire puncture sealant. A tire puncture sealant including a synthetic resin emulsion and an antifreezing agent, and having a hydrogen ion exponent of 5.5 to 8.5 has a less pungent odor and hardly causes corrosion of steel cord. A tire puncture sealant including a chloroprene emulsion and an antifreezing agent and having a hydrogen ion exponent of less than 9.0 has a comparatively low viscosity and a less odor while showing sealing properties equivalent to those of a conventional tire puncture sealant.Type: ApplicationFiled: February 19, 2010Publication date: June 17, 2010Applicant: The Yokohama Rubber Co., Ltd.Inventor: Takahiro Okamatsu
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Publication number: 20100152322Abstract: A tire puncture sealant including a urethane emulsion, an acrylic emulsion or a polyolefin emulsion, and an antifreezing agent has a comparatively low viscosity and an excellent storage stability while showing sealing properties equivalent to those of a conventional tire puncture sealant. A tire puncture sealant including a synthetic resin emulsion and an antifreezing agent, and having a hydrogen ion exponent of 5.5 to 8.5 has a less pungent odor and hardly causes corrosion of steel cord. A tire puncture sealant including a chloroprene emulsion and an antifreezing agent and having a hydrogen ion exponent of less than 9.0 has a comparatively low viscosity and a less odor while showing sealing properties equivalent to those of a conventional tire puncture sealant.Type: ApplicationFiled: February 19, 2010Publication date: June 17, 2010Applicant: The Yokohama Rubber Co., Ltd.Inventor: Takahiro Okamatsu
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Publication number: 20100130640Abstract: The present invention relates to a sealant composition for repairing a punctured tire, which comprises a synthetic resin emulsion, a tackifier and a water glass, and which has a hydrogen ion exponent of 5.5 to 8.5. The sealant composition for repairing a punctured tire has an improved sealing performance and is excellent in storage stability.Type: ApplicationFiled: November 23, 2009Publication date: May 27, 2010Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventors: Takahiro OKAMATSU, Kazushi KIMURA
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Publication number: 20100116398Abstract: The present disclosure provides a safety tire having a puncture-resistant, bulletproof, and leakproof capability between about ?45° C. to about 120° C. without any damaging process to the inside wall of the tire, but just by spray coating a layer of leakproof and hermetically-repairing macromolecular material with a thickness of about 2 mm to about 8 mm to the inside wall of the tire that does not have an inner tube. The present disclosure also provides the components of the leakproof and hermetically-repairing macromolecular material and the method to prepare the puncture-resistant bulletproof and leakproof safety tires.Type: ApplicationFiled: January 11, 2008Publication date: May 13, 2010Inventors: Hailong Zhang, Donghua Hu
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Patent number: 7709558Abstract: A device and a method for making a tire puncture sealant having a higher concentration of propylene glycol are disclosed, wherein the device comprises: a container having a cylindrical space for a mixed solution of rubber latex and a tackifier; a squirter comprising at least one spout for pouring propylene glycol on the surface of the mixed solution in the container at a rate of 0.01 to 1.0 liter/minute per spout; and an agitator for the mixed solution in the container, comprising a stirring blade rotatable in the mixed solution to cause said surface a current speed of the mixed solution in a range between about 1.0 and about 10.0 meter/second during pouring the propylene glycol.Type: GrantFiled: May 19, 2006Date of Patent: May 4, 2010Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yoshihide Kojima, Masahiro Kishida
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Publication number: 20100099797Abstract: A method for producing a puncture sealant, including: performing a first mixing to mix an anti-freezing agent and water; performing a second mixing to mix a mixed liquid obtained from the first mixing and a rubber latex; and performing a third mixing to mix a mixed liquid obtained from the second mixing and an adhesive agentType: ApplicationFiled: September 13, 2007Publication date: April 22, 2010Applicant: Bridgestone CorporationInventors: Narukuni Hirata, Ryuji Izumoto
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Publication number: 20100051158Abstract: A self-sealing elastomer composition, in an inflatable article such as a pneumatic tire (1), such composition comprising, as predominant elastomer, a thermoplastic styrene (TPS) elastomer and an extender oil with a content of between 200 and 700 phe (parts per hundred parts of elastomer by weight). An airtight puncture-resistant laminate (10) that can be used in particular in said inflatable article (1), comprises a puncture-resistant first layer (10a) comprising said self-sealing composition and an airtight second layer (10b), for example based on butyl rubber. An inflatable article comprises such a self-sealing composition or such an airtight puncture-resistant laminate.Type: ApplicationFiled: December 19, 2007Publication date: March 4, 2010Applicant: Michelin Recherche et Technique S.A.Inventors: Loïc Albert, Emmanuel Custodero, Pierre Lesage, José Merino Lopez, Lucien Silvain
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Publication number: 20090062425Abstract: The present invention is directed to a method for producing a cured tire filling composition and the composition resulting from such a method. The A component has from about 3 to about 30 weight % of a polyisocyanate comprising polymeric toluene diisocyanate (TDI) or diphenylmethane diisocyanate (MDI) with an average functionality of 2 or greater, from about 10 to about 60 weight % of a high molecular weight polyol or blend of polyols having a hydroxyl number in the range of about 20 to about 56, and the balance of a plasticizer. The amount of plasticizer is an amount sufficient to lower the NCO content of the resulting. A component to be less than 10% and is in the range of from about 10 to about 80 weight %. The B component has from 0 to about 30 weight % of the high molecular weight polyol or blend of polyols, from about 70 to about 99 weight % added water, from about 1 to about 8 weight % of a hydrophilic moiety, and from about 0.1 to about 5 weight % of a catalyst.Type: ApplicationFiled: August 20, 2008Publication date: March 5, 2009Applicant: Arnco, Inc.Inventors: Stephen J. Lucka, Larry R. Carapellotti, Bhanu Patel
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Publication number: 20090023837Abstract: An emulsion coagulant for coagulating a tire puncture sealant containing emulsion particles includes a mineral which induces aggregation of the emulsion particles by one or both of weakening of surface charge of the emulsion particles and formation of hydrogen bond between the mineral and the emulsion particles, and a gelation agent. The emulsion coagulant enables easy recovery of the tire puncture sealant from a tire as well as easy disposal of the recovered sealant.Type: ApplicationFiled: July 17, 2008Publication date: January 22, 2009Applicant: The Yokohama Rubber Co., Ltd.Inventors: Takahiro Okamatsu, Kazushi Kimura
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Publication number: 20080249208Abstract: A puncture sealing agent for a tire is disclosed that has a rubber latex, an adhesive agent, and an anti-freezing agent, wherein glycerin, potassium acetate or a solution of glycerin and potassium acetate is used as the anti-freezing agent.Type: ApplicationFiled: June 13, 2008Publication date: October 9, 2008Applicant: Accessories Marketing, Inc.Inventors: Steven Cegelski, Shees Sulenmanji
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Publication number: 20080142138Abstract: The present invention relates to a tire puncture sealant and a pneumatic tire containing such puncture sealant. The sealant contains silica reinforcement and butyl rubber depolymerized in the presence of an organoperoxide and modifier comprised of a metal oxide (e.g. magnesium oxide) or a combination of metal oxide modifier and calcium carbonate co-modifier.Type: ApplicationFiled: June 6, 2007Publication date: June 19, 2008Inventors: Joseph Alan Incavo, Mervin Victor Pilkington, Warren James Busch
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Patent number: 7388041Abstract: A puncture sealing agent for a tire is disclosed that has a rubber latex, an adhesive agent, and an anti-freezing agent, wherein glycerin, potassium acetate or a solution of glycerin and potassium acetate is used as the anti-freezing agent.Type: GrantFiled: March 24, 2006Date of Patent: June 17, 2008Assignee: Accessories Marketing, Inc.Inventors: Steven Cegelski, Shees Sulemanji
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Publication number: 20080121328Abstract: A sealing material includes the following characteristics: a value of a dynamic elastic modulus, measured at a temperature of 80° C., at a frequency of 1 Hz, and with a deformation of 5%, that is at least 60% lower than a value of the dynamic elastic modulus measured at the temperature of 80° C., at the frequency of 1 Hz, and with a deformation of 1%; and the value of the dynamic elastic modulus, measured at the temperature of 80° C., at the frequency of 1 Hz, and with the deformation of 5%, that is greater than or equal to 0.05 kPa. A tyre for a vehicle wheel includes a carcass structure comprising at least one carcass ply and at least one layer of sealing material disposed in a radially inner position with respect to the at least one carcass ply. A process for producing the tyre is also disclosed.Type: ApplicationFiled: November 14, 2007Publication date: May 29, 2008Inventors: Antonio SERRA, Pierangelo Misani, Jean-Louis Locatelli
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Publication number: 20080115872Abstract: The present invention relates to a composition comprised of butyl rubber, organoperoxide and isobutylene-adsorbing activated carbon; a composition comprised of organoperoxide-depolymerized butyl rubber which contains a dispersion therein of particulate isobutylene adsorbing activated carbon filler and pneumatic tire with a built-in sealant layer comprised of said depolymerized butyl rubber. The invention further relates to a process of organoperoxide depolymerizing butyl rubber in the presence of an isobutylene adsorbing activated carbon filler dispersion.Type: ApplicationFiled: November 16, 2006Publication date: May 22, 2008Inventors: Paul Harry Sandstrom, David Andrew Benko
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Patent number: 7322393Abstract: A sealing material includes the following characteristics: a value of a dynamic elastic modulus, measured at a temperature of 80° C., at a frequency of 1 Hz, and with a deformation of 5%, that is at least 60% lower than a value of the dynamic elastic modulus measured at the temperature of 80° C., at the frequency of 1 Hz, and with a deformation of 1%; and the value of the dynamic elastic modulus, measured at the temperature of 80° C., at the frequency of 1 Hz, and with the deformation of 5%, that is greater than or equal to 0.05 kPa. A tire for a vehicle wheel includes a carcass structure comprising at least one carcass ply and at least one layer of sealing material disposed in a radially inner position with respect to the at least one carcass ply. A process for producing the tire is also disclosed.Type: GrantFiled: September 20, 2002Date of Patent: January 29, 2008Assignee: Pirelli Pneumatici S.p.A.Inventors: Antonio Serra, Pierangelo Misani, Jean-Louis Locatelli
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Publication number: 20070259990Abstract: A tire treatment composition including a solid material suspended in a liquid carrier. The solid material consists of at least one ceramic fiber component and a blend of polymeric fibers. The polymeric fibers include various mixtures of polyethylene and/or polypropylene, polyester, polymeric acrylic, and nylon. The solid material may also include a cellulosic fiber. The liquid carrier includes a solution of water and at least one glycol such as ethylene glycol, diethylene glycol, propylene glycol, triethylene glycol, dipropylene glycol, or tetraethylene glycol. The liquid carrier may also include additive agents such as antimicrobial agents, anti-corrosion agents, thickening agents, buffering agents, and adjuvant agents. The tire treatment composition of the present invention is suitable for use with a tire pressure management system or with nitrogen tire pressure systems and is supplied in a volume sufficient in a unit for treatment of the tires of a vehicle.Type: ApplicationFiled: May 7, 2007Publication date: November 8, 2007Applicant: TRANS GLOBAL CHEMICAL, LLCInventors: Harvey Katz, Claudia Iovino, Stephen Bradway, Richard Iantosca, Wei R. Chen
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Publication number: 20070203260Abstract: A tire puncture sealant including a urethane emulsion, an acrylic emulsion or a polyolefin emulsion, and an antifreezing agent has a comparatively low viscosity and an excellent storage stability while showing sealing properties equivalent to those of a conventional tire puncture sealant. A tire puncture sealant including a synthetic resin emulsion and an antifreezing agent, and having a hydrogen ion exponent of 5.5 to 8.5 has a less pungent odor and hardly causes corrosion of steel cord. A tire puncture sealant including a chloroprene emulsion and an antifreezing agent and having a hydrogen ion exponent of less than 9.0 has a comparatively low viscosity and a less odor while showing sealing properties equivalent to those of a conventional tire puncture sealant.Type: ApplicationFiled: February 27, 2007Publication date: August 30, 2007Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventor: Takahiro Okamatsu
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Patent number: 7169830Abstract: A tire sealant composition for use in pneumatic tires is provided. The tire sealant composition primarily serves to seal the tire around the wheel rim and particularly in the tread area of the tire against punctures. The composition includes a naturally derived viscous carrier fluid and at least one fibrous material, polymeric material or combination of both, wherein the composition remains fluid in use. The naturally derived viscous carrier fluid is preferably desugared molasses (less than 30% by weight sucrose) and is able to sustain a temperature of ?30° F. (?34.4° C. and below) without freezing. The tire sealant composition is fire-retardant, non-toxic, non-corrosive and non-abrasive and is environmentally friendly.Type: GrantFiled: April 8, 2004Date of Patent: January 30, 2007Inventor: Robert D. Fogal, Sr.
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Patent number: 7073550Abstract: This invention relates to a pneumatic tire having a built-in non-black colored sealant layer and its preparation. The sealant layer is derived from a sealant precursor layer comprised of a butyl rubber, organoperoxide, particulate, synthetic amorphous silica and plant-derived organic agricultural seed flour, together with a non-black colored colorant. The butyl rubber-based sealant precursor layer is build into the tire to form a tire assembly and the butyl rubber component of the sealant precursor layer is depolymerized during a subsequent curing of the tire at an elevated temperature in a suitable mold to form the tire having the resultant built-in sealant. The particulate plant derived organic agricultural seed flour is a renewable raw material in a sense that it can be replenished in nature and therefore not as a significant depletion of non-renewable natural resource. The agricultural plant seed flour is comprised of at least a portion of a ground plant seed (e.g.Type: GrantFiled: March 17, 2004Date of Patent: July 11, 2006Assignee: The Goodyear Tire & Rubber CompanyInventors: Leonard James Reiter, George Frank Balogh, Michael Julian Crawford
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Patent number: 7055569Abstract: The present invention provides a compound, system, and method for retrofitting and converting standard bicycle rims and tires having tube to be tubeless. Standard tube tires are retrofitted by installing either rim tape or a rim strip with integral valve stem around the inner channel of the rim, mounting the first bead of the tire, injecting a liquid sealing compound into the tire cavity, finishing mounting the tire, inflating and installing the tire on a bicycle. The sealing compound may additionally contain propylene glycol or an aggregate material to encourage the sealing of the tires as punctures occur when the tire system is placed into use.Type: GrantFiled: August 31, 2004Date of Patent: June 6, 2006Inventor: Stanley Koziatek
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Patent number: 6992119Abstract: A tire puncture sealant comprises a latex of natural rubber, an emulsion of a tackifier and an antifreezing agent, wherein the tackifier is an aromatic modified terpene resin, and given that the total A+B+C of the solid content A of the natural rubber latex, the solid content B of the tackifier emulsion and the content C of the antifreezing agent is 100 weight %, the solid content A of the natural rubber latex is in a range of from 30 to 60 weight %, the solid content B of the tackifier emulsion is in a range of from 10 to 30 weight %, and the content C of the antifreezing agent is in a range of from 20 to 50 weight %.Type: GrantFiled: July 8, 2003Date of Patent: January 31, 2006Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yoshihide Kojima, Masahiro Kishida, Takaichiro Shimokado
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Patent number: 6962181Abstract: This invention relates to a pneumatic tire having a built-in sealant layer and its preparation. The sealant layer precursor is a layer of a butyl rubber based composition which contains an organoperoxide. The butyl rubber of said precursor is a copolymer of isobutylene and isoprene containing from about 0.5 to about 5, alternately less than 1, mole percent isoprene. The precursor composition contains carbon black and/or coal dust and may contain a dispersion of liquid conjugated diene polymer (e.g. liquid cis 1,4-polyisoprene polymer), short fibers and/or hollow glass microspheres. A layer of the sealant precursor is built into the tire between a sulfur vulcanized halobutyl rubber innerliner and conjugated diene-based rubber of the tire carcass. The butyl rubber of the sealant precursor is partially depolymerized by the organoperoxide during the elevated temperature vulcanization of the tire to form the built-in sealant layer.Type: GrantFiled: February 17, 2003Date of Patent: November 8, 2005Assignee: The Goodyear Tire & Rubber CompanyInventors: Susan Lynn Deevers, Raymond Robert DiRossi, George Frank Balogh, Brian David Holden, Leonard James Reiter
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Patent number: 6889723Abstract: A sealing preparation for tire problems is proposed which seals in wet conditions, at low and high temperatures and with defects at the transition between the tread and the side wall of the tire. The sealing preparation contains natural rubber latex or a combination of rubber latex and compatible adhesive resin. Furthermore, various devices are proposed for introducing the sealing preparation into the tire and for the pumping up. An air compressor, or liquefied dinitrogenoxide, or sulphur hexafluoride are preferably used with these devices as a pressure source.Type: GrantFiled: February 12, 2002Date of Patent: May 10, 2005Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Manfred Gerresheim, Hans-Bernd Fuchs, Ulrich Steinbrecht, Norbert Stransky, Eduard Ditzel, Helmut Wolf