C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 67/327 (2006.01) C07C 69/54 (2006.01)
Patent
CA 2607604
The present invention relates to processes for preparing alkyl (meth)acrylates, comprising the steps of transesterifying an alkyl .alpha.-hydroxycarboxylate with (meth)acrylic acid to obtain alkyl (meth)acrylates and .alpha.-hydroxycarboxylic acid, and dehydrating the .alpha.-hydroxycarboxylic acid to obtain (meth)acrylic acid.
La présente invention concerne des procédés de production de (méth)acrylates d'alkyle, qui consistent à transestérifier un alkylester d'acide a-hydroxycarboxylique avec de l'acide (méth)acrylique, de façon à obtenir des (méth)acrylates d'alkyle et de l'acide a-hydroxycarboxylique, puis à déshydrater l'acide a-hydroxycarboxylique pour obtenir de l'acide (méth)acrylique.
Ackermann Jochen
Broecker Sonke
Gropp Udo
May Alexander
Siegert Hermann
Evonik Rohm Gmbh
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
Rohm Gmbh
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