Process and catalyst for producing partially hydrogenated diene polymers containing endo and exo chain trisubstituted unsaturation

摘要

A process for producing partially hydrogenated diene polymers containing unsaturation in the endo and exo configurations while substantially eliminating the unsaturation in the 1,4-trans configuration, by isomerizing the unsaturation during hydrogenation in the presence of an arylphosphine isomerizing agent.