Hydrogenation of unsaturated polymers using divalent diene-containing bis-cyclopentadienyl group IV metal catalysts
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United States of America Patent
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Nov 5, 2002
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N/A
app pub date -
Jun 29, 2000
filing date -
Jul 9, 1999
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Abstract
Organic compounds are hydrogenated in the presence of certain bis(pentadienyl) divalent Group IV metal complexes having .pi.-bound, neutral, conjugated diene ligands. These complexes are effective hydrogenation catalysts for polymers containing ethylenic unsaturation. They further provide for selective hydrogenation of ethylenic unsaturation sites in the presence of aromatic groups.
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