The present invention relates to a polymer composite containing at least one
carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least
one basic compound, at least one polyhalogenated hydrocarbon, optionally at least
one filler and optionally at least one cross-linking agent, a process for preparing
said polymer composite wherein at least one carboxylated nitrile rubber polymer,
that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated
hydrocarbon, optionally at least one filler and optionally at least one cross-linking
agent are mixed and a shaped article containing diester bridges formed by reaction
of at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated,
at least one basic compound and at least one polyhalogenated hydrocarbon.