METHOD FOR PRODUCING POLYMERIZED ROSIN ALCOHOL, AND POLYMERIZED ROSIN ALCOHOL OBTAINED BY THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a high purity polymerized rosin alcohol having a high content of dimer component.;SOLUTION: A polymerized rosin ester contains 80 wt.% or more of a rosin dimer component, and contains 80 wt.% or more of a diester compound represented by general formula (1): ROOC-X-COOR (wherein, X represents a residue after removing two ester groups from the rosin dimer; R represents an alkyl group having 1 to 5 carbon atoms) in the dimer component. A method for producing a polymerized rosin alcohol comprises hydrogenating and reducing the polymerized rosin ester at hydrogen pressure of 5 to 30 MPa and temperature of 180 to 350°C in the presence of a copper oxide-based catalyst.;COPYRIGHT: (C)2014,JPO&INPIT