Process for the improved production of (meth)acrylic acid esters of polyhydric alcohols (I)

摘要

PCT No. PCT/EP89/01549 Sec. 371 Date Jun. 24, 1991 Sec. 102(e) Date Jun. 24, 1991 PCT Filed Dec. 15, 1989 PCT Pub. No. WO90/07486 PCT Pub. Date Jul. 12, 1990.The invention relates to a process for the production of (meth)acrylic acid esters of polyhydric alcohols by reaction of the reactants in the presence of acidic esterification catalysts with addition of alpha -substituted phenolic compounds, more particularly di-tert.-butyl hydroquinone, as polymerization inhibitors. The new process is characterized in that the reaction mixtures used are liquid at room temperature and are at least substantially free from solvents and/or azeotropic entraining agents and in that the water of condensation formed is removed from the gas phase of the reaction zone.