Patent ID: 8044229
Filing Date: 2011-10-25
Classification: C07C

Abstract:
1. An alicyclic polycarboxylic acid ester mixture, comprising: at least two isomers of an alicyclic polycarboxylic acid ester whose structures are determined by the positions of the ester groups on the ring system of the ester compound, wherein the proportion of the trans isomers in the isomer mixture is above 10 mol %, the alicyclic polycarboxylic acid ester mixture being prepared by hydrogenating the corresponding aromatic polycarboxylic acid ester isomers over a catalyst which comprises at least one metal selected from the triad of elements consisting of iron, cobalt and nickel, together with at least one metal selected from the group consisting of the IInd, IIIrd, IVth, Vth and VIth transition group of the Periodic Table.