Patent application number | Description | Published |
20090160078 | DEVICE AND METHOD FOR PREPARATION OF A PROFILED ELEMENT FROM AN ELASTOMERIC THERMOPLASTIC GEL - A device for preparing a flat profiled element from an elastomeric thermoplastic gel includes: | 06-25-2009 |
20110108186 | DEVICE AND METHOD FOR PREPARATION OF A PROFILED ELEMENT FROM AN ELASTOMERIC THERMOPLASTIC GEL - A device for preparing a flat profiled element from an elastomeric thermoplastic gel includes:
| 05-12-2011 |
20110165408 | Self-Sealing Elastomer Composition - Self-sealing elastomer composition that can in particular be used as puncture-resistant layer in an inflatable article, comprising at least 30 phr of a saturated thermoplastic stirene elastomer, at most 70 phr of an unsaturated thermoplastic stirene elastomer and more than 200 phr of an oil extender. Inflatable article, such as a tire, provided with a puncture-resistant layer comprising, as self-sealing composition, an elastomer composition according to the invention. Advantageously, the puncture-resistant layer is combined with an airtight layer, for example based on butyl rubber, so as to constitute, in the inflatable article, a puncture-resistant airtight laminate. | 07-07-2011 |
20110180193 | Puncture-Resistant Air-Impermeable Laminate for an Inflatable Article - Airtight and puncture-resistant multilayer elastomer laminate that can be used in particular in an inflatable article, such as a pneumatic tire for a vehicle, comprising at least the following three layers (phr signifying parts by weight per hundred parts of rubber (elastomer) in each composition considered): as an airtight first layer, a first elastomer composition comprising at least 50 phr of a diene elastomer; as a puncture-resistant second layer, a self-sealing second elastomer composition comprising at least 50 phr of a saturated thermoplastic stirene elastomer and more than 200 phr of an extender oil; as an adhesive third layer or interphase between the above two layers, a third composition comprising at least 30 phr of an unsaturated thermoplastic stirene elastomer. | 07-28-2011 |
20110181100 | Sealing Device and Process for Placing Said Device on a Rim - A sealing device forming an annular band intended to be associated with a rim for a wheel designed to accept a tire, the rim having a rim bottom extended by two flanges, the device being adapted to be fitted in such a way as to cover at least the rim bottom. The annular band comprises at least one elastomeric material comprising at least one copolymer thermoplastic elastomer containing blocks of polystirene and polyisobutylene, and a polybutene oil. Also disclosed is a mounted assembly having a wheel comprising a rim associated with a sealing device and of a tubeless tire. In addition, a method is disclosed for fitting a sealing device onto a rim. | 07-28-2011 |
20110315291 | Pneumatic Object Provided with a Gas-Tight Layer Comprising a Thermoplastic Elastomer and Expanded Thermoplastic Microspheres - An inflatable article provided with an elastomer layer impermeable to the inflation gas, such as air, said layer comprising at least, as major elastomer, a thermoplastic polystirene/polyisobutylene block copolymer, such as an SIBS (stirene/isobutylene/stirene) copolymer, and expanded thermoplastic microspheres with a preferential content between 1 and 30 phr. Preferably, this copolymer comprises between 5% and 50% stirene by weight, its number-average molecular weight is between 30 000 and 500 000 g/mol and its Tg is below −20° C. Optionally, the gastight elastomer layer also contains, as plasticizer, an extender oil, especially a polybutene oil, with a preferential content between 5 and 100 phr. This gastight layer not only has excellent impermeability properties, but also a density and a hysteresis that are both reduced compared with layers based on butyl rubber. The inflatable article can be a pneumatic tire for a motor vehicle. | 12-29-2011 |
20120003409 | Pneumatic Object Provided with Gas-Tight Layer Comprising Two Thermoplastic Elastomers - Inflatable article equipped with an elastomer layer impermeable to the inflation gases comprising at least: as first thermoplastic stirene elastomer, at least 50 phr of a copolymer containing polystirene and polyisobutylene blocks, in particular SIBS; as second thermoplastic stirene elastomer, at most 50 phr of a thermoplastic stirene copolymer of unsaturated type, in particular SIS; and optionally an extender oil, in particular polybutene, at a content preferably between 5 and 100 phr. This gastight elastomer layer has very good impermeability properties and a lower hysteresis compared to layers based on butyl rubber. The inflatable article can be, in particular, an inner tube or a pneumatic tire for a motor vehicle. | 01-05-2012 |
20120003413 | Airtight Multilayer Laminate for a Pneumatic Object - A multilayer elastomer laminate that is impermeable to inflation gases, which is capable of adhering to a diene elastomer composition and which can be used in an inflatable article provided with such a diene composition, said laminate comprising at least two superposed elastomer layers (phr signifying parts by weight per hundred parts of elastomer, in each elastomer composition considered): as a gastight first layer, a first elastomer composition comprising more than 50 phr of a copolymer containing polystirene and polyisobutylene blocks; as an adhesive second layer, a second elastomer composition comprising more than 50 phr of an unsaturated thermoplastic stirene copolymer and optionally a liquid plasticizing agent at a content from 0 to less than 100 phr. This multilayer laminate possesses very good impermeability properties and a reduced hysteresis compared to layers based on butyl rubber, and also a high adhesion to a diene elastomer third layer. | 01-05-2012 |
20120128972 | Self-Adhesive Composite Reinforcement, in Particular for Tires, and Associated Manufacturing Method - Composite reinforcement (R- | 05-24-2012 |
20120141696 | ELASTOMER 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 |
20120142840 | Method for Manufacturing and Handling Elastomer Thermoplastic Gels - Method of manufacturing granulates or continuous strips intended for feeding an extrusion machine, formed of a gel comprising at least, as majority elastomer, a styrene thermoplastic elastomer and more than 200 phr of an extender oil, each element of the granulate having a given surface area. The granulate element is sized so that the compactness, of a granulate element, is less than a value decreasing from 1500 m | 06-07-2012 |
20120149822 | PNEUMATIC OBJECT PROVIDED WITH A GASTIGHT LAYER MADE OF A THERMOPLASTIC ELASTOMER AND LAMELLAR FILLER - An inflatable object is equipped with a layer for sealing in an inflation gas. The layer is formed of an elastomeric composition that includes a predominant elastomer by weight, a block thermoplastic elastomer, and a lamellar filler. The block thermoplastic elastomer includes a polyisobutylene block with a number-average molecular mass ranging from 25,000 to 350,000 g/mol and a glass transition temperature of less than or equal to −20° C., and, at at least one end of the polyisobutylene block, a thermoplastic block made from at least a polymerized monomer other than a stirene monomer, the polymerized monomer having a glass transition temperature greater than or equal to 100° C. The lamellar filler has an equivalent diameter (D | 06-14-2012 |
20120156400 | PNEUMATIC OBJECT PROVIDED WITH A GASTIGHT LAYER CONTAINING A THERMOPLASTIC ELASTOMER AND A PLATY FILLER - An inflatable article is provided with a layer impermeable to inflation gases. The layer has an elastomer composition that includes at least, as a predominant elastomer by weight, a thermoplastic styrene (TPS) elastomer and a platy filler. The platy filler has an equivalent diameter (D | 06-21-2012 |
20120180921 | Pressure-Sensitive Composite Reinforcement - Composite reinforcement (R- | 07-19-2012 |
20120267023 | Self-Adhesive Composite Reinforcement - Composite reinforcer (R- | 10-25-2012 |
20120285597 | PNEUMATIC 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 |
20130168001 | PNEUMATIC 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 |