Patent ID: 7026503
Filing Date: 2006-04-11
Classification: C07C,Y02P

Abstract:
1. A process for the preparation of higher (meth)acrylates by transesterification of a lower (meth)acrylate with a higher alcohol R 2 OH which either carries, as R 2 , C 2 –C 12 -alkyl radical having at least one NR 3 2 group in which R 3 is C 1 –C 6 -alkyl and N may also be a member of a five- to seven-membered ring or is R 3 2 N(—CH 2 CH 2 —O)y-H, R 3 2 N(—CH(CH 3 )—CH—O) y —H or R 3 2 N(—CH 2 CH(CH 3 )—O) y —H, where y is an integer from 1 to 4, in the presence of a stabilizer or stabilizer mixture and of a catalyst or catalyst mixture, wherein the liberated lower alkanol R 1 OH, where R 1 contains at least 1 carbon atom less than R 2 , is separated off and is fed at least partly to the preparation of a lower (meth)acrylate without further purification.