A PROCESS FOR THE REMOVAL OF METAL CATALYST FROM THE HYDROGENATED POLYMER

摘要

A process for manufacturing a hydrogenated conjugated diene-based polymer is provided to prevent the decomposition and color change of a copolymer by effectively removing the residue through the delamination using an organic acid, alcohol and water. A process for manufacturing a hydrogenated conjugated diene-based polymer comprises the steps of preparing the hydrogenated conjugated diene-based polymer solution by hydrogenating the conjugated diene-polymer in the presence of a titanium-based catalyst; and mixing an acid compound selected from an oxalic acid and an alpha-hydroxy carboxylic acid compound represented by the formula 1, alcohol and water, and separating and collecting the hydrogenated conjugated diene-based polymer of an organic layer through the delamination. In the chemical formula 1, R1 and R2 show hydrogen or C1-5 alkyl group.