Patent ID: 6660881
Filing Date: 2003-12-09
Classification: C07C

Abstract:
A process of or producing a (meth)acrylic ester, which uses an alcohol and an acid as raw materials and an ion-exchange resin as a catalyst, wherein said alcohol used as said raw material comprises at least one alcohol selected from the group consisting of saturated fatty alcohol having 1 to 12 carbon atoms, unsaturated fatty alcohol having at least 2 to 12 carbon atoms, fatty cyclic alcohol having 3 to 10 carbon atoms, and aromatic alcohol having 6 to 10 carbon atoms, wherein said acid used as said raw material comprises at least one acid selected from the group consisting of acrylic acid and methacrylic acid, wherein said ion-exchange resin used as a catalyst comprises at least one ion-exchange resin selected from the group consisting of gel resins, porous resins, and high-porous resins,with the process comprising (a) a dehydration step in which water impregnated in the ion-exchange resin is removed by using a dehydrating solvent and (b) an esterification reaction step, wherein the esterification reaction step follows the dehydration step, wherein said dehydrating solvent is at least one member selected from the group consisting of said alcohol used as said raw material, said acid used as said raw material, and (said (meth)acrylic ester produced by said alcohol and said acid.