MULTILAYERED GAS-TIGHT AND ANTI-PUNCTURE LAMINATE AND PNEUMATIC OBJECT INCLUDING SAME

摘要

The invention relates to a multilayered anti-puncture laminate (10) tight to inflating gases, that comprises at least: a first gas-tight elastomer layer (10a) including a copolymer thermoplastic elastomer with polystyrene and polyisobutylene blocs, and optionally an extension oil in an amount of between 0 to less than 100 pce; a second self-sealant elastomer layer (10b) containing a styrene thermoplastic elastomer identical to or different from the first elastomer and an extension oil in an amount higher than 200 pce. The invention also relates to the use of such a laminate (10) in a pneumatic object, such as a tyre (1) for an automobile or an air tube including such multilayered laminate (10).