Nitrile polymer compounds for magnetic seal applications
The present invention relates to a rubber compound containing at least one hydrogenated carboxylated nitrile rubber, at least one hydrogenated nitrile rubber and at least one magnetic compound, a curable rubber compound containing said rubber compound and at least one vulcanization agent and a magnetic shaped article containing said rubber compound.
1 . A rubber compound comprising at least one hydrogenated carboxylated nitrile rubber, at least one hydrogenated nitrile rubber and at least one magnetic compound.
2 . A rubber compound according to claim 1 wherein the hydrogenated carboxylated nitrile rubber is a statistical co-polymer.
3 . A rubber compound according to claim 1 , wherein the magnetic compound is a ferrite compound.
4 . A vulcanizable rubber compound comprising a rubber compound according to claim 1 and further comprising at least one vulcanization agent.
5 . A vulcanizable rubber according to claim 4 further comprising at least one filler.
6 . A magnetic shaped article comprising a compound according to claim 1 .
7 . A magnetic shaped article according to claim 6 in the form of a seal, gasket, belt, hose, bearing pad, stator, well head seal, valve plate, cable sheathing, wheel roller, in place gasket, shaft seal or pipe seal.