Process for removing ruthenium-containing catalyst residues from optionally hydrogenated nitrile rubber
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United States of America Patent
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Dec 7, 2010
Grant Date -
Jun 25, 2009
app pub date -
Dec 17, 2008
filing date -
Dec 21, 2007
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Abstract
Novel optionally hydrogenated nitrile rubbers distinguised by a very low ruthenium content are provided as well as a process for the removal of ruthenium-containing catalyst residues from a solution of optionally hydrogenated nitrile rubber by using specific functionalized ion-exchange resins.
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