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 polystyrene and polyisobutylene blocks; as an adhesive second layer, a second elastomer composition comprising more than 50 phr of an unsaturated thermoplastic styrene 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.
STRATIFIE MULTICOUCHE ETANCHE A L'AIR POUR OBJET PNEUMATIQUE
AIR-IMPERMEABLE MULTILAYER LAMINATE FOR PNEUMATIC ARTICLE
UNDURCHLÄSSIGES MEHRSCHICHTIGES LAMINAT FÜR EINEN PNEUMATISCHEN ARTIKEL
2017-01-11
Patent
Elektronische Ressource
Französisch
STRATIFIE MULTICOUCHE UTILISABLE COMME COUCHE ETANCHE DE PNEUMATIQUE
Europäisches Patentamt | 2017
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