公开(公告)号：DE59702964D1

公开(公告)日：2001-03-01

申请号：DE59702964

申请日：1997-11-11

Applicant: BASF AG

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

IPC: C08F4/54 ,  C08F4/46 ,  C08F4/48 ,  C08F4/56 ,  C08F4/58 ,  C08F20/12 ,  C08F297/02

公开(公告)号：DE19728628A1

公开(公告)日：1999-01-07

申请号：DE19728628

申请日：1997-07-04

Applicant: BASF AG

Inventor： JUENGLING STEPHAN DR ,  GAUSEPOHL HERMANN DR ,  WEIS HORST DR ,  MUELLER AXEL H E DR ,  SCHLAAD HELMUT ,  SCHMITT BARDO

IPC: C08F4/48 ,  C08F20/12 ,  C08F297/02 ,  C08F20/18 ,  C08F4/52

Abstract: The invention relates to a method for producing homopolymers, copolymers or block copolymers by anionic polymerization of acrylates and/or methacrylates in the presence of an initiator composition containing A) an alkali organic compound, an alkali alkoxide or an alkali amide, B) an organic aluminium compound and C) an alkali or an alkaline earth salt as an alkali cation complexing additive.

公开(公告)号：AU8728498A

公开(公告)日：1999-01-25

申请号：AU8728498

申请日：1998-06-23

Applicant: BASF AG

Inventor： JUNGLING STEPHAN ,  GAUSEPOHL HERMANN ,  WEISS HORST ,  MULLER AXEL H E ,  SCHLAAD HELMUT ,  SCHMITT BARDO

IPC: C08F4/48 ,  C08F20/12 ,  C08F297/02

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).

公开(公告)号：DE59700569D1

公开(公告)日：1999-11-25

申请号：DE59700569

申请日：1997-07-15

Applicant: BASF AG

Inventor： JUENGLING STEPHAN ,  MEHLER CHRISTOF ,  SCHLAAD HELMUT ,  SCHMITT BARDO ,  MUELLER AXEL ,  WEISS HORST ,  STEIGER SUZANNE

IPC: C08F4/46 ,  C08F20/12

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).

公开(公告)号：DE19648565A1

公开(公告)日：1998-05-28

申请号：DE19648565

申请日：1996-11-23

Applicant: BASF AG

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

IPC: C08F4/54 ,  C08F4/46 ,  C08F4/48 ,  C08F4/56 ,  C08F4/58 ,  C08F20/12 ,  C08F297/02 ,  C08F20/18 ,  C08F4/52

Abstract: The invention relates to the production of homoplymers, copolymers or block copolymers by anionic polymerization of acrylates and/or methacrylates in the presence of an initiator composition containing A) an alkaline organic compound, B) an organic aluminium compound and C) an alkaline cation complexing additive, selected from the group of open-chain ethers with at least two oxygen atoms in the ether function, macrocylic ethers or cryptands or from the group of quaternary cations of general formula (I), wherein A means N, P, As, Sb and R , R , R , R mean individually optionally substituted alkyl, cycloalkyl, aralkyl or aryl, whereby two adjacent radicals can form a 5 or 6 link heterocycle with the heteroatom A, which can contain one or two other heteroatoms, selected from the group of nitrogen, oxygen or sulphur atoms.