Patent ID: 8916724
Filing Date: 2014-12-23
Classification: C07C

Abstract:
1. A process for preparing a (meth)acrylic ester, the process comprising transesterifying a low-boiling ester of (meth)acrylic acid with a reactant alcohol in a reaction mixture in the presence of a catalyst, wherein the transesterifying is catalyzed by the catalyst, which is a basic ion exchanger, and wherein the transesterifying is effected at a temperature in a range from 70° C. to 120° C., wherein the basic ion exchanger is an anionic crosslinked styrene divinyl benzene copolymer containing quaternary ammonium groups, wherein the basic ions are hydroxide ions; wherein the reactant alcohol is at least one monohydric or polyhydric alcohol selected from the group consisting of butanol, hexanol, 3 methylbutanol, heptanol, 2-ethylhexyl alcohol, 2 tert butylheptanol, octanol, 3 isopropylheptanol, nonanol, decanol, undecanol, 5 methylundecanol, dodecanol, 2 methyldodecanol, tridecanol, 5 methyltridecanol, tetradecanol, pentadecanol, hexadecanol, 2 methylhexadecanol, heptadecanol, 5 isopropylheptadecanol, 4 tert butyloctadecanol, 5 ethyloctadecanol, 3 isopropyloctadecanol, octadecanol, nonadecanol, eicosanol, cetyleicosanol, stearyleicosanol, docosanol, eicosyltetratriacontanol, ethylene glycol, trimethylolpropane, 1,2-propanediol, 1,3-propanediol, 1,3 butanediol, 1,4-butanediol, ethoxylated bisphenol A, 1,6-hexanediol, and pentaerythritol.