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Marc Greiveldinger

Marc Greiveldinger, Chatel-Guyon FR

Patent application numberDescriptionPublished
20100168306Rubber Composition Exhibiting Improved Adhesion to a Metal Reinforcement - A rubber composition usable for manufacturing a metal/rubber composite and capable of adhering to a metallic reinforcing member, comprising at least one diene elastomer, a reinforcing filler, a cross-linking system and between 0.1 and 10 phr of acetylacetonate of a lanthanide.07-01-2010
20110277901Pneumatic Object Having a Gas Tight Layer Containing a Specific SIBS Thermoplastic Elastomer - Inflatable article equipped with an elastomer layer impermeable to inflation gases, said elastomer layer comprising at least, as the predominant elastomer, a thermoplastic SIBS elastomer comprising a polyisobutylene block comprising an amount of units derived from one or more conjugated dienes ranging from 0.5% to 6% by weight relative to the weight of the polyisobutylene block, and, at least one of the ends of the polyisobutylene block, a stirenic block representing at most 16% by weight of the total weight of the block copolymer. Preferably the airtight elastomer layer also comprises, as a plasticizing agent, an extender oil for the SIBS elastomer. The inflatable article of the invention is, in particular, an inner tube or a pneumatic tire for a motor vehicle.11-17-2011
20120141696ELASTOMER COMPOSITION MADE FROM A THERMOPLASTIC COPOLYMER, INFLATABLE OBJECT PROVIDED WITH A GAS BARRIER MADE FROM SUCH A COMPOSITION - Elastomer composition comprising at least, as predominant elastomer, a thermoplastic SIBS elastomer comprising a “polyisobutylene” block and, at least one of the ends of the “polyisobutylene” block, a thermoplastic block of specific structure having a Tg greater than or equal to 100° C. The elastomer composition according to the invention may be used as an elastomer layer impermeable to the inflation gases in an inflatable object. This inflatable object is, in particular, an inner tube or a pneumatic tyre for a motor vehicle.06-07-2012
20120234449PNEUMATIC TYRE WITH BUILT-IN SELF-SEALING AND PROTECTIVE LAYERS - Pneumatic tyre with built-in self-sealing layer comprising an outer rubbery tread, a carcass reinforcement, a gastight layer positioned on the inside relative to the carcass reinforcement, a protective layer positioned innermost and a self-sealing layer adjacent to the protective layer and positioned on the inside relative to the gastight layer, characterized in that said protective layer is a chlorinated thermoplastic polymer film.09-20-2012
20120285597PNEUMATIC OBJECT PROVIDED WITH A GAS-TIGHT LAYER COMPRISING A STYRENE THERMOPLASTIC ELASTOMER AND A POLYPHENYLENE ETHER - Inflatable article provided with an elastomer layer which is airtight to the inflation gases, the said airtight elastomer layer comprising at least one styrene thermoplastic elastomer comprising a polyisobutylene block, characterized in that the said airtight elastomer layer additionally comprises a polyphenylene ether (“PPE”).11-15-2012
20120315408INFLATABLE ARTICLE PROVIDED WITH A GASTIGHT LAYER BASED ON A BLEND OF A THERMOPLASTIC ELASTOMER AND OF A PARTIALLY CROSSLINKED BUTYL RUBBER. - An inflatable article is provided with an elastomer layer that is airtight to inflation gases used to inflate the article. The elastomer layer includes at least one blend of a thermoplastic elastomer in a proportion A and a partially crosslinked butyl rubber in a proportion B. The ratio A/B varies in a range between 1 and 20, with A and B being expressed by weight. The thermoplastic elastomer includes a polyisobutylene block.12-13-2012
20130168001PNEUMATIC OBJECT PROVIDED WITH A GAS-TIGHT LAYER COMPRISING A MIXTURE OF A THERMOPLASTIC ELASTOMER AND A BUTYL RUBBER - An inflatable article is provided with an elastomer layer that is airtight to inflation gases used to inflate the article. The elastomer layer includes at least one blend of a thermoplastic elastomer and a butyl rubber. The thermoplastic elastomer includes a polyisobutylene block. The thermoplastic elastomer is present in a proportion A, and the butyl rubber is present in a proportion B, with a ratio A/B being in a range of 1 and 20, and with A and B being expressed by weight.07-04-2013

Patent applications by Marc Greiveldinger, Chatel-Guyon FR

Marc Greiveldinger, Clermont-Ferrand FR

Patent application numberDescriptionPublished
20130196086INFLATABLE OBJECT PROVIDED WITH A GAS-TIGHT LAYER CONTAINING A THERMOPLASTIC ELASTOMER AND A HYDROCARBON-BASED RESIN - A pneumatic object is provided with a layer that is airtight to inflation gases. The layer includes an elastomer composition having at least a thermoplastic elastomer (TPE), as a sole elastomer or as a predominant elastomer by weight, and a hydrocarbon resin. A glass transition temperature of the hydrocarbon resin is above 0° C. The TPE is a copolymer that includes at least a central polyisobutylene block. Optionally, the elastomer composition includes an extender oil. Also optionally, the elastomer composition includes a platy filler selected from a group that includes graphites and phyllosilicates, such as micas, clays, and talcs. The pneumatic object may be an inner tube or a pneumatic tyre for a motor vehicle.08-01-2013
20130209716INFLATABLE ARTICLE PROVIDED WITH GAS-IMPERMEABLE LAYER BASED ON A BLEND OF A BUTYL RUBBER AND A THERMOPLASTIC ELASTOMER - An inflatable article is provided with an elastomer layer that is airtight towards inflation gases. The elastomer layer includes at least one rubber composition, and the rubber composition includes at least: as a non-thermoplastic elastomer, a butyl rubber, used alone or as a blend with one or more other non-thermoplastic elastomers (preferably diene elastomers); a crosslinking system; optionally a reinforcing filler at a content within a range from 0 to 120 phr; and a thermoplastic elastomer that includes a polyisobutylene block. A content of the thermoplastic elastomer is within a range from 3 to 80 parts by weight per 100 parts of non-thermoplastic elastomer.08-15-2013
20140299249TIRE PROVIDED WITH AN OUTER SIDEWALL COMPRISING A MIXTURE OF A DIENE ELASTOMER AND A THERMOPLASTIC ELASTOMER - A tire includes an external sidewall, having improved airtightness. The external sidewall includes at least one rubber composition comprising at least one or more diene elastomers at a total content of 1 to 99 phr, one or more thermoplastic elastomers having a polyisobutylene block at a total content of 1 to 99 phr, optionally a reinforcing filler at a content of 0 to 120 phr, and a crosslinking system.10-09-2014

Marc Greiveldinger, Clermont-Ferrand Cedex 9 FR

Patent application numberDescriptionPublished
20140343190TIRE PROVIDED WITH A TREAD MADE FROM A MIXTURE OF A DIENE ELASTOMER AND A THERMOPLASTIC ELASTOMER - A tire includes a tread, having improved airtightness. The tread includes at least one rubber composition comprising at least one or more diene elastomers at a total content of 1 to 99 phr, one or more thermoplastic elastomers having a polyisobutylene block at a total content of 1 to 99 phr, optionally a reinforcing filler at a content of 0 to 200 phr, and a crosslinking system.11-20-2014
20140343216TIRE PROVIDED WITH AN INNER LAYER COMPRISING A MIXTURE OF A DIENE ELASTOMER AND A THERMOPLASTIC ELASTOMER - A tire includes an internal layer, having improved airtightness. The layer includes at least one rubber composition, which includes: at least one or more diene elastomers at a total content of 1 to 99 phr, one or more thermoplastic elastomers having a polyisobutylene block at a total content of 1 to 99 phr, optionally a reinforcing filler at a content of 0 to 120 phr, and a crosslinking system.11-20-2014
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