Composition For Puncture Proof Tire Liner Or In Emergency Tire Repair (e.g., Tire Inflation, Etc.) Or Process Of Preparing Patents (Class 523/166)
  • Patent number: 10836126
    Abstract: A puncture sealing agent is disclosed which comprises natural rubber latex, an aqueous solution of an adhesive, and an antifreezing agent. The natural rubber latex, the aqueous solution of the adhesive and the antifreezing agent are natural components and the adhesive is a carbohydrate.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: November 17, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Angel J. Jimenez, Michael M. Koegler, Arnold Eckhardt
  • Patent number: 10781347
    Abstract: An object of the present invention is to provide a tire sealant having excellent injectability and a tire repair kit. The present invention relates to a tire sealant containing a natural rubber latex; a synthetic resin emulsion; an anti-freezing agent; and phosphate ions or acetate ions; wherein the content of the phosphate ions is from 4.5×10?3 to 11.0×10?3 mass %; the content of the acetate ions is from 0.05 to 0.2 mass %; and the relative dielectric constant of the tire sealant is not less than 52.9; and a tire repair kit using the tire sealant.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 22, 2020
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Takahiro Okamatsu, Kiyohito Takahashi
  • Patent number: 10737448
    Abstract: Subject matter disclosed herein relates to sealant for tire repairing and more particularly, relates to sealant composition for repairing tire punctures and a method of preparing the same.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: August 11, 2020
    Assignee: TOP ALLIANCE TECHNOLOGY LTD.
    Inventors: Koon Fung Lam, Tsz Nok Ng, Wai Kwong Ching, Ping Shu Ho
  • Patent number: 10576703
    Abstract: A kit for repairing a tire, comprising, a first pressurized container including a first fluid and a second pressurized container including a second fluid. The first fluid comprises a first propellant and an emulsion comprising styrene butadiene rubber, a foaming agent, and an antioxidant. The second fluid comprises isopropyl alcohol and a second propellant.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 3, 2020
    Assignee: Holt Lloyd International Limited
    Inventors: Bruce Ellis, Richard Hitchman
  • Patent number: 10414907
    Abstract: A first object of the present invention is to provide a tire puncture sealing agent having excellent sealing property and injectability. A tire puncture sealing agent of a first embodiment of the present invention contains a particular amine compound, glycols, a rubber latex and/or a resin emulsion, and a surfactant. A second object of the present invention is to provide a tire puncture sealing agent having excellent retainability of generated foam and excellent sealing property even in a small liquid amount. A tire puncture sealing agent of a second embodiment of the present invention contains a particular polyether-modified silicone, glycols, a rubber latex and/or a resin emulsion, and a surfactant.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: September 17, 2019
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Hideyuki Takahara
  • Patent number: 10245795
    Abstract: The present invention is a tire puncture repair kit including tire puncture repair liquid and a coagulant for a tire puncture repair liquid with excellent coagulability. The coagulant of the present invention coagulates a tire puncture repair liquid, and contains an ?-starch and/or a dextrin having a weight average molecular weight of 3,000 to 50,000.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: April 2, 2019
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Takahiro Okamatsu
  • Patent number: 10208231
    Abstract: A high performance sealant for repairing punctures in tires includes a highly filtered natural rubber latex, an ultra-fine inorganic powder, a polyamide suspension, and an antifreeze agent that includes water and at least one of ethylene glycol and propylene glycol. The high performance sealant can readily pass through a valve stem of a tire without removing the core and seal, and provides a strong and durable sealing of the puncture.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: February 19, 2019
    Assignee: Illinois Tool Works, Inc.
    Inventors: Martin Patrick Spindler, Shees N. Sulemanji, Henry Friedrich Ferdinand Klemm, Brandt A. Haener, Bryan Douglas Smith, Gordon Chetosky
  • Patent number: 9862156
    Abstract: An environmentally friendly aerosol sealing composition for tire repair can simultaneously repair a punctured flat tire and inflate the flat tire to a pressure suitable for driving. The tire sealant composition includes a sealant concentrate and an aerosol propellant. The sealant concentrate is water-based and includes a glycerin antifreeze agent and a natural rubber latex that suitably has a mechanical stability of at least about 1050 seconds, and is substantially free of coagulants.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 9, 2018
    Assignee: Illinois Tool Works, Inc.
    Inventor: Shees N. Sulemanji
  • Patent number: 9803118
    Abstract: An object of the present invention is to provide a coagulant with excellent coagulability performance, and a tire puncture repair kit that uses the coagulant. The present invention is a coagulant of a tire puncture repair liquid, the coagulant including at least one component selected from the group consisting of a plant protein, a pectin, a cellulose, a phospholipid and a fatty acid glyceride, and a tire puncture repair kit that uses the coagulant.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: October 31, 2017
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Takahiro Okamatsu
  • Patent number: 9771503
    Abstract: A tire puncture sealant according to the present technology is a tire puncture sealant containing a latex and/or an emulsion and an anti-freezing agent, the latex and/or emulsion containing, as solids, at least a polymer and/or an organic compound (other than the polymer), a content of solids being from 20 to 65% by mass with respect to the total mass of the sealant, and the difference between the specific gravity of the solids and the specific gravity of a mixture of water and anti-freezing agent in the tire puncture sealant being within ±0.1.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: September 26, 2017
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Takahiro Okamatsu
  • Patent number: 9758707
    Abstract: The present invention provides a tire puncture sealant which exhibits excellent storage stability while having reduced low-temperature viscosity and therefore improved low-temperature injection properties, and also exhibits excellent initial sealing properties and sealing force retention properties. The present invention relates to a tire puncture sealant containing rubber latex and 1,3-propanediol, the 1,3-propanediol being present in a proportion of 55 to 61% by mass of the liquid component.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: September 12, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Naoya Ichikawa
  • Patent number: 9732203
    Abstract: An object of the present invention is to provide a novel emulsion coagulant having excellent coagulability used in a tire puncture sealing agent, and a tire puncture repair kit that uses the same. The present invention is an emulsion coagulant comprising magnesium oxide and a silane coupling agent and a cellulose and/or magnesium hydroxide, wherein a mass ratio of the magnesium oxide to the silane coupling agent is from 100:0.5 to 100:15; and a tire puncture repair kit that uses the same.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: August 15, 2017
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Takahiro Okamatsu
  • Patent number: 9694549
    Abstract: An object of the present invention is to provide an emulsion coagulant having excellent coagulation performance and a tire puncture repair kit that uses the emulsion coagulant. The emulsion coagulant of the present invention is an emulsion coagulant containing an ?-starch and an anionic polyacrylamide; a molecular weight of the anionic polyacrylamide being from 500,000 to 2,000,000; and a mass ratio (WA:WB) of a content (WA) of the ?-starch to a content (WB) of the anionic polyacrylamide being from 5:95 to 80:20.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: July 4, 2017
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Takahiro Okamatsu, Masahiro Naruse, Hideyuki Takahara
  • Patent number: 9676979
    Abstract: Disclosed is a liquid coagulant which can be injected into the inside of a tire without the need of removing the tire from a rim and which can prevent the scattering of a residue of a tire puncture sealing material when the tire is removed from the rim. The liquid coagulant can coagulate an emulsion that contains natural rubber latex and/or a synthetic resin emulsion. The liquid coagulant contains a foaming agent capable of foaming the emulsion. Also disclosed is a tire puncture sealant set including the coagulant and a method of coagulating a tire puncture sealant.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: June 13, 2017
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Takahiro Okamatsu, Kazushi Kimura
  • Patent number: 9677025
    Abstract: Elastomer composition having a self-sealing property which can be used in particular as puncture-resistant layer in an inflatable article, based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a blend of at least two solid elastomers, a polybutadiene or butadiene copolymer elastomer, referred to as “elastomer A”, and a natural rubber or synthetic polyisoprene elastomer, referred to as “elastomer B”, the elastomer A: elastomer B ratio by weight being within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler. Inflatable article, such as a tire, provided with a puncture-resistant layer comprising this elastomer composition; the puncture-resistant layer is advantageously used in combination with an airtight layer, for example based on butyl rubber or TPS elastomer, in order to form, in the inflatable article, an airtight and puncture-resistant laminate.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: June 13, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Bozena Voge, Vincent Pelissier, José Merino Lopez
  • Patent number: 9676152
    Abstract: An object of the present invention is to provide a tire puncture sealing agent that has excellent freeze resistance and that also exhibits excellent sealing properties even in a small liquid amount. The tire puncture sealing agent of the present invention contains: a rubber latex and/or a resin emulsion; a glycol ether represented by Formula (1) below; and a surfactant. In Formula (1), R11 represents a hydrogen atom or an alkyl group. R12 represents an alkyl group. p represents an integer of 1 or greater.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: June 13, 2017
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Hideyuki Takahara
  • Patent number: 9657164
    Abstract: An object of the present invention is to provide an emulsion coagulant capable of quickly coagulating an emulsion in an extremely low temperature environment. The present invention is an emulsion coagulant containing an amphoteric acrylic polymer, the amphoteric acrylic polymer having an amide group and a sulfonic acid group and having a weight average molecular weight of 30,000 or lower, and the emulsion coagulant being used to coagulate an emulsion. The present invention is also a tire puncture repair kit that uses the emulsion coagulant.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: May 23, 2017
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Takahiro Okamatsu, Masahiro Naruse, Hideyuki Takahara
  • Patent number: 9604420
    Abstract: An object of the present invention is to provide a tire puncture sealant having excellent sealing performance and low-temperature properties. The tire puncture sealant of the present invention contains a natural rubber latex (A) and a vinyl versatate copolymer resin emulsion (B) as an emulsion of a vinyl versatate copolymer resin (b1) containing vinyl versatate as a monomer unit; the proportion of the vinyl versatate with respect to all monomer units constituting the vinyl versatate copolymer resin (b1) being from 30 to 70 mass %.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: March 28, 2017
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Masahiro Naruse
  • Patent number: 9486970
    Abstract: The present invention provides a tire puncture sealant containing a natural rubber latex and/or a synthetic resin emulsion and propylene glycol, the propylene glycol/water ratio being from 0.5 to 1.1, and the viscosity at ?20° C. when a BL-type viscometer is used being from 100 to 1200 mPa·s at a revolution speed of 60 rpm. The tire puncture sealant of the present invention has excellent low-temperature injection properties and sealing performance.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: November 8, 2016
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Masahiro Naruse
  • Patent number: 9260642
    Abstract: The present application relates to a sealant composition, comprising 80-95 wt % liquid carrier, 0.1-10 wt % gel material derived from a water soluble polymer, 1-10 wt % latex emulsion, 0.1-5 wt % rigid particles, and 0.1-5 wt % surfactant. The sealant composition can further comprise 0.1-1 wt % additives, such as anti-foaming agent, preservative, anti-corrosion additive, coloring agent and odorant, for corresponding functions. The present application also relates to a method of preparing the sealant composition.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: February 16, 2016
    Assignee: Top Alliance Technology Limited
    Inventors: Koon Fung Lam, Wai Ming Chan
  • Patent number: 9217076
    Abstract: An object of the present invention is to provide an emulsion coagulant which can be used to quickly coagulate a tire puncture sealing material in an extremely low temperature environment. The emulsion coagulant of the present invention is an emulsion coagulant comprising: component (A) having a particle size of from 35 to 100 ?m and comprising at least one type selected from the group consisting of aluminum oxide, magnesium oxide, and silicon oxide; propylene glycol alginate; and component (B) comprising at least one type selected from the group consisting of calcium oxide, calcium chloride, calcium acetate, and urea; the amount of component (B) being from 3 to 30 mass % of the total amount of component (A), propylene glycol alginate, and component (B); and the emulsion coagulant being used to coagulate a tire puncture sealing material comprising an emulsion.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 22, 2015
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Takahiro Okamatsu
  • Publication number: 20150087746
    Abstract: A tyre repair sealing composition having: 30 to 80% natural latex, 5 to 35% synthetic latex, and 10 to 60% ethylene glycol, and wherein the diameter of the synthetic latex particles advantageously has a mean particle-size distribution of 0.04 to 0.5 ?m.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Applicant: TEK GLOBAL S.R.L.
    Inventors: Sergio LOLLI, Erika LERI, Fabrizio ARDISSONE
  • Patent number: 8957132
    Abstract: Process for the manufacture of an elastomer composition having a self-sealing property which is based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a blend of at least two solid elastomers, a polybutadiene or butadiene copolymer elastomer, referred to as “elastomer A”, and a natural rubber or synthetic polyisoprene elastomer, referred to as “elastomer B”, the elastomer A:elastomer B ratio by weight being within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler, in which, during a first stage or stage (a), a masterbatch comprising at least the elastomers A and B and between 30 and 90 phr of a hydrocarbon resin is prepared by mixing these various components in a mixer at a “hot compounding” temperature or up to a “hot compounding” temperature which is greater than the softening temperature of the hydrocarbon resin.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: February 17, 2015
    Assignees: Compagnie Generale des Establissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Bozena Voge, Vincent Pelissier, Jose Merino Lopez
  • Publication number: 20150018450
    Abstract: A tire sealer and inflator can include a sealant composition, and a propellant composition. The propellant composition can include R152a (1,1-difluoroethane) propellant. The sealant composition and the propellant composition may be combined in an aerosol container. The aerosol container can be a DOT 2Q container.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Inventor: N. Howard DUDLEY
  • Patent number: 8910684
    Abstract: A tire comprising an innerliner, where the innerliner includes a rubber and boron nitride dispersed within the rubber.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: December 16, 2014
    Assignee: Bridgestone Corporation
    Inventors: Mary M. Matthiesen, Amy Randall, Mindaugas Rackaitis
  • Patent number: 8895640
    Abstract: A sealant composition for the sealing of a punctured tire including a liquid carrier, one or more viscosity and suspending agents, one or more fillers and sealants, and one or more polyacrylates.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: November 25, 2014
    Assignee: Trydel Research Pty Ltd
    Inventor: Terence Dowel
  • Publication number: 20140221527
    Abstract: The present invention provides a tire puncture sealant containing a natural rubber latex and/or a synthetic resin emulsion and propylene glycol, the propylene glycol/water ratio being from 0.5 to 1.1, and the viscosity at ?20° C. when a BL-type viscometer is used being from 100 to 1200 mPa·s at a revolution speed of 60 rpm. The tire puncture sealant of the present invention has excellent low-temperature injection properties and sealing performance.
    Type: Application
    Filed: August 8, 2012
    Publication date: August 7, 2014
    Applicant: THE YOKOHAMA RUBBER CO., LTD.
    Inventor: Masahiro Naruse
  • Patent number: 8791175
    Abstract: Disclosed is a liquid coagulant which can be injected into the inside of a tire without removing the tire from a rim and which can prevent the scattering of a residue of a tire puncture sealing material when the tire is removed from the rim. The liquid coagulant can coagulate an emulsion that contains a natural rubber latex. The liquid coagulant comprises a urethane resin and/or an acrylic resin which has a pH value of 2.0 to 4.0 and contains a cationic functional group.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 29, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Takahiro Okamatsu, Kazushi Kimura, Daisuke Kanenari, Takumi Sekiguchi
  • Patent number: 8772370
    Abstract: An environmentally safe, biodegradable aqueous antifreeze solution and a puncture sealing composition containing the same are provided. The antifreeze solution includes an antifreeze agent selected from trimethylglycine, dimethyl sulfoxide, and derivatives and combinations thereof. The composition is effective in forming and maintaining seals in tube and tire punctures.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 8, 2014
    Assignee: Illinois Tool Works Inc.
    Inventor: Shees N. Sulemanji
  • Patent number: 8710140
    Abstract: 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: Grant
    Filed: July 23, 2009
    Date of Patent: April 29, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Frederic Pialot, Damien Fombelle, Bozena Voge, Jose Merino Lopez
  • Patent number: 8646500
    Abstract: A puncture-resistant multilayer laminate that is impermeable to inflation gases, comprising: a gastight first elastomer layer comprising a polystyrene/polyisobutylene block copolymer thermoplastic elastomer, and optionally an extender oil with a content within a range of 0 to less than 100 phr; and a self-sealing second elastomer layer comprising a thermoplastic styrene elastomer, identical to or different from the first elastomer, and an extender oil with a content greater than 200 phr.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 11, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Emmanuel Custodero, Pierre Lesage, José Merino Lopez
  • Patent number: 8616255
    Abstract: An object of the present invention is to provide a polymer laminate that has a small thickness and is excellent in air permeation resistance and adhesion with an adjacent rubber, and a pneumatic tire using the same as an inner liner. A polymer laminate includes 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 containing at least one of a styrene-isoprene-styrene triblock copolymer and a styrene-isobutylene diblock copolymer, and a second layer have a thickness of 0.01 mm to 0.3 mm.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: December 31, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Mutsuki Sugimoto
  • Patent number: 8617333
    Abstract: 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.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: December 31, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ramendra Nath Majumdar, Aaron Scott Puhala
  • Patent number: 8614276
    Abstract: 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: Grant
    Filed: July 23, 2009
    Date of Patent: December 24, 2013
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Bozena Voge, Didier Vasseur, Jose Merino Lopez, Frederic Pialot
  • Patent number: 8602075
    Abstract: 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: Grant
    Filed: December 19, 2007
    Date of Patent: December 10, 2013
    Assignee: Michelin Recherche et Technique S.A
    Inventors: Loïc Albert, Emmanuel Custodero, Pierre Lesage, José Merino Lopez, Lucien Silvain
  • Publication number: 20130202829
    Abstract: Elastomer composition having a self-sealing property which can be used in particular as puncture-resistant layer in an inflatable article, based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a blend of at least two solid elastomers, a polybutadiene or butadiene copolymer elastomer, referred to as “elastomer A”, and a natural rubber or synthetic polyisoprene elastomer, referred to as “elastomer B”, the elastomer A:elastomer B ratio by weight being within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler. Inflatable article, such as a tire, provided with a puncture-resistant layer comprising a composition according to the invention; the puncture-resistant layer is advantageously used in combination with an airtight layer, for example based on butyl rubber or TPS elastomer, in order to form, in the inflatable article, an airtight and puncture-resistant laminate.
    Type: Application
    Filed: January 21, 2011
    Publication date: August 8, 2013
    Applicants: Michelin Recherche et Technique S.A., Compagnie Generale Des Etablissements Michelin
    Inventors: Bozena Voge, Vincent Pelissier, Jose Merino Lopez
  • Publication number: 20130196085
    Abstract: Elastomer composition having a self-sealing property which can be used in particular as puncture-resistant layer in an inflatable article, based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a solid unsaturated diene elastomer; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler; between 0.5 and 15 phr of thiuram polysulphide. Inflatable article, such as a tire, provided with a puncture-resistant layer comprising a composition according to the invention; the puncture-resistant layer is advantageously used in combination with an airtight layer, for example based on butyl rubber or TPS elastomer, in order to form, in the inflatable article, an airtight and puncture-resistant laminate.
    Type: Application
    Filed: January 21, 2011
    Publication date: August 1, 2013
    Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSMENTS MICHELIN
    Inventors: Bozena Voge, José Carlos Araujo Da Silva, Jose Merino Lopez
  • Patent number: 8481610
    Abstract: 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: Grant
    Filed: October 22, 2009
    Date of Patent: July 9, 2013
    Assignee: Bridgestone Corporation
    Inventors: Narukuni Hirata, Shinichi Eguchi, Minoshima Haruki
  • Patent number: 8470909
    Abstract: 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: Grant
    Filed: April 26, 2011
    Date of Patent: June 25, 2013
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hideyuki Takahara, Takahiro Okamatsu
  • Publication number: 20130072594
    Abstract: Disclosed is a liquid coagulant which can be injected into the inside of a tire without the need of removing the tire from a rim and which can prevent the scattering of a residue of a tire puncture sealing material when the tire is removed from the rim. The liquid coagulant can coagulate an emulsion that contains a natural rubber latex and/or a synthetic resin emulsion. The liquid coagulant contains a foaming agent capable of foaming the emulsion.
    Type: Application
    Filed: May 19, 2011
    Publication date: March 21, 2013
    Applicant: THE YOKOHAMA RUBBER CO., LTD.
    Inventors: Takahiro Okamatsu, Kazushi Kimura
  • Patent number: 8360122
    Abstract: Pneumatic tire including a sealant material composition providing puncture sealing property within the sealant material composition includes a compound containing a diphenyldisulfide structure therein.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: January 29, 2013
    Assignee: Continental Tire The Americas, LLC
    Inventor: Joshua L. Wilson
  • Patent number: 8362110
    Abstract: 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: Grant
    Filed: August 6, 2010
    Date of Patent: January 29, 2013
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Michael Schunack, Carla Recker, Mario Conde
  • Patent number: 8338544
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of polymerizing monomer to form a reactive polymer, and reacting the reactive polymer with a protected polyoxime compound.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: December 25, 2012
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 8329778
    Abstract: A sealant composition for the sealing of a punctured tire including a liquid carrier, one or more viscosity and suspending agents, one or more fillers and sealants, and one or more polyacrylates.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: December 11, 2012
    Assignee: Tyrdel Research PTY, Ltd.
    Inventor: Terence Dowel
  • Publication number: 20120309867
    Abstract: An object of the present invention is to provide a tire puncture sealant whereby both sealing performance and storage performance can be achieved. A tire puncture sealant is provided that includes a natural rubber latex, an antifreezing agent, and an acrylic emulsion. A mass ratio of a solid content of the natural rubber latex to a solid content of the acrylic emulsion (natural rubber/acrylic resin) is from 50/50 to 15/85. An amount of the antifreezing agent is from 100 to 300 parts by mass per 100 parts by mass of a total of the solid content of the natural rubber latex and the solid content of the acrylic emulsion. The total of the solid content of the natural rubber latex and the solid content of the acrylic emulsion is from 20 to 40 mass % of a total mass of the tire puncture sealant.
    Type: Application
    Filed: February 3, 2011
    Publication date: December 6, 2012
    Applicant: THE YOKOHAMA RUBBER CO., LTD.
    Inventor: Hideyuki Takahara
  • Patent number: 8318839
    Abstract: 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: Grant
    Filed: September 20, 2011
    Date of Patent: November 27, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Takaaki Ishida, Hiroyuki Nakagawa, Naoya Ichikawa
  • Patent number: 8293049
    Abstract: The present invention relates to a tire puncture sealant and a pneumatic tire containing such puncture sealant as a built-in puncture sealant. The sealant composition contains silica reinforcement and butyl rubber depolymerized in the presence of a balanced and cooperative combination of organoperoxides comprised of a minor amount of 4,4-di(tertiary butylperoxy) valerate depolymerization initiator and a major amount of dicumyl peroxide depolymerization propagator, the combination of which has been observed to have a synergistic effect.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: October 23, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Joseph Alan Incavo
  • Patent number: 8242196
    Abstract: 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: Grant
    Filed: June 29, 2010
    Date of Patent: August 14, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Takaaki Ishida, Hiroyuki Nakagawa, Naoya Ichikawa
  • Patent number: 8236883
    Abstract: 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: Grant
    Filed: January 11, 2008
    Date of Patent: August 7, 2012
    Inventors: Hailong Zhang, Donghua Hu
  • Patent number: 8183309
    Abstract: 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: Grant
    Filed: June 28, 2010
    Date of Patent: May 22, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Naoya Ichikawa, Takaaki Ishida, Hiroyuki Nakagawa