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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
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).
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Patent Agency Ranking
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.
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公开(公告)号：DE19646066A1
公开(公告)日：1998-05-14
申请号：DE19646066
申请日：1996-11-08
Applicant: BASF AG
Inventor： JUENGLING STEPHAN DR , GAUSEPOHL HERMANN DR , WEIS HORST DR , BAUMGAERTEL MICHAEL DR
Abstract: Initiator systems for anionic polymerization of vinyl monomers with polar groups, containing A) a1) at least one starter having general formula R -M or R -M -RC, wherein R , R or R independently stand for branched or straight-chain alkyl radicals of 1-6 carbon atoms, aryl radicals of 6-20 carbon atoms or alkyl radicals with 1-6 carbon atoms carrying at least one phenyl radical and M stands for a metal selected from the group of alkaline metals, and M stands for a metal selected from the group of alkaline earth metals, or a2) as a starter "living" polymer chains, whose chain ends are possibly stabilized by sterically demanding and/or aromatic radicals and B) at least one alkaline (I) or alkaline earth metal alcoholate (II) or at least one alkaline (I) and at least one alkaline earth metal alcoholate (II) which have at least one amino or one phosphino substituent or at least one amino and one phosphino substituent.
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公开(公告)号：DE19642353A1
公开(公告)日：1998-04-16
申请号：DE19642353
申请日：1996-10-14
Applicant: BASF AG
Inventor： GEPRAEGS MICHAEL DR , STUERMER RAINER DR , WEIS HORST DR , STEIGER SUSANNE
IPC: C08F4/602 , C08F4/642 , C08F4/645 , C08F10/00 , C08F12/00 , C08F12/04 , C08F210/02 , B01J31/22 , C07F7/28 , C07F17/00
Abstract: The present invention relates to catalytic patterns, the active components of which are A) metal complexes of general formula (I), in which the substituents have the following notation: M is a metal of the subgroup III, IV, V or VI in the periodic table of the elements or a metal of the lanthanide series; Y is a negative nucleofuge atom or a negative leaving group; X and X are neutral atoms or negatively loaded atoms from the main group IV, V or VI in the periodic table of the elements; Z is hydrogen, C1- to C10-alkyl, C3- to C10-cycloalkyl, C1- to C10-alkoxy, C1- to C10-alkylthiolat or dialkylamide with, in each case, 1 to 4 C-atoms in the alkyl residues; R to R are hydrogen, organocarbon or organosilicon residues, n is 0, 1 or 2, the valence of M is (2+n), and B) a metallocenium-ionizing compound.
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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.
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公开(公告)号：DE19642354A1
公开(公告)日：1998-04-16
申请号：DE19642354
申请日：1996-10-14
Applicant: BASF AG
Inventor： GEPRAEGS MICHAEL DR , STUERMER RAINER DR , WEIS HORST DR , STEIGER SUSANNE
Abstract: Disclosed are metal complexes of the general formula (I), in which the substituents have the following notations: M is a metal of the subgroup III, IV, V or VI in the periodic table of the elements or a metal of the lanthanide series; Y is a negative nucleofuge atom or a negative leaving group; X and X are neutral atoms or negatively loaded atoms from the main group IV, V or VI in the periodic table of the elements; Z is hydrogen, C1- to C10-alkyl, C3- to C10-cycloalkyl, C1- to C10-alkoxy, C1- to C10-alkylthiolat or dialkylamide with, in each case, 1 to 4 C-atoms in the alkyl residues; R to R are hydrogen, organocarbon or organosilicon residues, n is 0, 1 or 2, and the valence of M is (2+n).
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