Patent ID: 6040473
Filing Date: 2000-03-21
Classification: B01J,C07C,C08G

Abstract:
Process for the production of (meth)acrylic acid esters of formula I ##STR5## in which A stands for a radical selected from the group consisting of ##STR6## R' stands for a straight-chain or branched alkyl radical, optionally substituted with an aryl radical or an aryloxy radical, with 1 to 28 carbon atoms, or for a radical ##STR7## R"" stands for hydrogen or methyl, and n stands for a whole number from 2 to 250, in a re-esterification reaction, characterized in that a (meth)acrylic acid ester of formula II ##STR8## in which R stands for a lower alkyl radical, and R"" has the meaning indicated above, is re-esterified in the presence of a re-esterification catalyst comprised of calcium hydroxide (Ca(OH).sub.2) or calcium hydroxide in combination with lithium chloride, with an alcohol of formula IIIR'""--(O--A--).sub.n --OH (III)in which R'"" stands for hydrogen or for the radical R' radical, and A and n have the meanings indicated above.