公开(公告)号：DE19629649A1

公开(公告)日：1998-01-29

申请号：DE19629649

申请日：1996-07-23

Applicant: BASF AG

Inventor： JUENGLING STEPHAN DR ,  MEHLER CHRISTOF DR ,  SCHLAAD HELMUT ,  SCHMITT BARDO ,  MUELLER AXEL PROF DR ,  WEIS HORST DR ,  STEIGER SUSANNE

IPC: C08F4/46 ,  C08F20/12 ,  C08F20/18 ,  C08F4/52

Abstract: In the production of polyacrylates (I) based on alkyl (alkyl)acrylate(s) in the presence of a starter composition containing an alkali ester enolate (II) and an organic aluminium compound (III), the starter composition contains an ester (IV) which is different from the monomers and has no acidic proton on the carbon atom in the alpha -position to the ester group. Also claimed are: (a) a starter composition containing (II), (III) and (IV); and (b) its preparation by (1) mixing alkyl and/or alkylaryl alkali compound(s) with (III), then (2) adding an alkyl alkylacrylate in an amount stoichiometrically equivalent to the alkali compound finally (3) adding (IV).