INTERNAL SEALED PNEUMATIC LAYER COMPRISING AN ELASTOMERIC MATRIX BASED ON A BLOCK COPOLYMER COMPRISING AN ELASTOMERIC BLOCK WITH ISOBUTYLENE AND HALOGENOALKYLSTYRENE UNITS

摘要

The invention relates to a tire-tight inner layer having a rubber composition comprising: an elastomeric matrix comprising at least 50 phr of a block copolymer comprising at least one thermoplastic block comprising at least units derived from one or more monomers styrenic and at least one elastomer block in the form of a random copolymer comprising at least units derived from isobutylene and units derived from one or more halogenoalkyl styrene monomers, - a metal compound chosen from metal oxides, sulphides metal, and a mixture of these compounds. The invention also relates to a tire comprising the sealed inner layer.