| abstract |
The present invention relates to a polymer composite comprising atnleast one carboxylated nitrile rubber polymer, that is optionally hydrogenated,nand at least halogenated butyl rubber, a process for preparing said polymerncomposite wherein at least one carboxylated nitrile rubber polymer, that isnoptionally hydrogenated, and at least one halogenated butyl rubber are mixednand a shaped article comprising at least one carboxylated nitrile rubbernpolymer, that is optionally hydrogenated, and at least one halogenated butylnrubber, as well as a method of increasing the cross-linking density of anhalogenated butyl rubber by admixing said halogenated butyl rubber with atnleast one, optionally hydrogenated, carboxylated nitrile rubber polymer,noptionally at least on cross-linking agent, and optionally a filler and curing thencompound. |