The invention relates to a self-sealing elastomer composition that can particularly be used as an anti-puncture layer in a pneumatic object, and that comprises at least: an unsaturated diene elastomer as the major elastomer; a thermoplastic hydrocarbon plasticising resin in a weight rate of between 20 and 90 pce; a liquid plasticizer having a glass transition temperature Tg lower than -20 DEG C and in a weight rate of between 0 and 60 pce; and from 0 to less than 30 pce of a filler. The invention also relates to a pneumatic object such as a pneumatic tyre provided with an anti-puncture layer containing a composition according to the invention. The anti-puncture layer is advantageously combined with an air-tight layer containing e.g. butyl rubber, in order to form an air-tight and anti-puncture laminate in the pneumatic object.
Self-Sealing Composition for Pneumatic Object
2016-02-03
Patent
Elektronische Ressource
Englisch
Self-sealing elastomer composition for a pneumatic object
Europäisches Patentamt | 2016
|