초록

The present invention relates to a process for the selective hydrogenation of the carbon-carbon double bonds in diene-based polymers in bulk form by treatment of the polymer with hydrogen in the presence of a platinum group metal containing catalyst and in the absence of any organic solvent.

대표청구항 ▼

What is claimed is: 1. A process for selectively hydrogenating carbon-carbon double bonds in a nitrile rubber, this being a copolymer of an α,β-unsaturated nitrile and a conjugated diene and optionally at least one further copolymerizable monomer, comprising subjecting the nitrile rubber which is pr

What is claimed is: 1. A process for selectively hydrogenating carbon-carbon double bonds in a nitrile rubber, this being a copolymer of an α,β-unsaturated nitrile and a conjugated diene and optionally at least one further copolymerizable monomer, comprising subjecting the nitrile rubber which is present in bulk form to a hydrogenation in the absence of any organic solvent and in the presence of an unsupported platinum-group metal containing catalyst, wherein the platinum group metal is selected from the group consisting of palladium and platinum, wherein the hydrogenation is carried out at a temperature in the range of from 20 to 60° C.