Patent ID: 8314188
Filing Date: 2012-11-20
Classification: C08C,C08L

Abstract:
1. A process for the continuous hydrogenation of carbon carbon double bonds in an unsaturated polymer based on a conjugated diolefin and at least one other copolymerizable monomer to produce a hydrogenated polymer, in the presence of a solvent and a catalyst, wherein said unsaturated polymer, hydrogen and said catalyst are passed through a multistage agitated reactor, wherein said multistage agitated reactor comprises a cylindrical, elongated shell having closed ends and separated by baffles into a multiplicity of discrete chambers with access from one chamber to another through concentric circular openings, axially centered with said baffles and one or two continuous rotatable shafts extending concentric with said baffles within said shell with at least one impeller attached thereto positioned in each chamber, said hydrogenated polymer being withdrawn at the opposite end of the multistage agitated reactor at which the feed is introduced.