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公开(公告)号：DE59910224D1
公开(公告)日：2004-09-16
申请号：DE59910224
申请日：1999-09-16
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：AT272659T
公开(公告)日：2004-08-15
申请号：AT00931194
申请日：2000-05-11
Applicant: BASF AG
Inventor： JUENGLING STEPHAN , SCHADE CHRISTIAN , GAUSEPOHL HERMANN , WARZELHAN VOLKER , MOORS RAINER , SCHAECH HANSJOERG , QUEISSER JOACHIM , LUINSTRA GERRIT , DEMETER JUERGEN
IPC: C08F2/00 , C08F2/06 , C08F2/38 , C08F4/60 , C08F4/62 , C08F4/639 , C08F4/642 , C08F4/646 , C08F36/04 , C08F236/10 , C08F279/02 , C08F297/04 , C08L55/02
Abstract: In a process for polymerizing dienes in a solvent comprising vinylaromatic monomers, the polymerization is carried out in the presence of a metal compound of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo or W as catalyst and a Lewis acid as cocatalyst and, if desired, an alkylating agent and, if desired, a regulator. This process can be used for preparing high-impact polystyrene, acrylonitrile-butadiene-styrene copolymers or methyl methacrylate-butadiene-styrene copolymers.
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公开(公告)号：DE19923579A1
公开(公告)日：2000-11-23
申请号：DE19923579
申请日：1999-05-21
Applicant: BASF AG
Inventor： JUENGLING STEPHAN , SCHADE CHRISTIAN , GAUSEPOHL HERMANN , WARZELHAN VOLKER , MOORS RAINER , SCHAECH HANSJOERG , QUEISSER JOACHIM , LUINSTRA GERRIT
IPC: C08F4/642 , C08F36/04 , C08F279/02 , C08F297/04 , C08L55/02 , C08F4/64 , C08F236/10 , C08F236/12
Abstract: A process for the polymerization of dienes in a solvent containing vinyl-aromatic monomers, which is carried out in presence of an organometallic compound of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum or tungsten as catalyst and a Lewis acid as cocatalyst. Independent claims are also included for: (a) a process for the production of high-impact polystyrene, acrylonitrile-butadiene-styrene copolymers or methyl methacrylate-butadiene-styrene copolymers using a rubber solution produced by the above process; (b) a process for the continuous production of impact-modified thermoplastic molding materials containing a rubber-based soft phase dispersed in a hard vinyl-aromatic matrix, by: (1) polymerizing dienes in vinyl-aromatic monomer solution as above in a first reaction zone, (2) transferring the diene rubber to a second zone and subjecting it to anionic or radical polymerization, optionally in presence of further vinyl-aromatic monomer or other comonomers in amounts sufficient to achieve phase inversion and (3) completing the polymerization in a third zone with the amount of vinyl-aromatic monomer required for the impact-modified material; and (c) a process for the production of solutions of rubber in styrene solutions with sterically demanding chelate catalysts.
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公开(公告)号：DE19843687A1
公开(公告)日：2000-03-30
申请号：DE19843687
申请日：1998-09-24
Applicant: BASF AG
Inventor： JUENGLING STEPHAN , SCHADE CHRISTIAN , GAUSEPOHL HERMANN , WARZELHAN VOLKER , DESBOIS PHILIPPE , FONTANILLE MICHEL , DEFFIEUX ALAIN
Abstract: The invention relates to a method for the anionic polymerisation of dienes in a solvent in the form of an aliphatic, isocyclic or aromatic hydrocarbon or hydrocarbon mixture, in the presence of an organic lithium polymerisation initiator and a dialkylmagnesium compound which is soluble in the hydrocarbon, the molar ratio of Mg/Li being greater than 0.8.
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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
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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公开(公告)号：DE19806772A1
公开(公告)日：1999-08-19
申请号：DE19806772
申请日：1998-02-18
Applicant: BASF AG
Inventor： SCHADE CHRISTIAN , FISCHER WOLFGANG , GAUSEPOHL HERMANN , JUENGLING STEPHAN , WARZELHAN VOLKER , FONTANILLE MICHEL , DEFFIEUX ALAIN , DESBOIS PHILIPPE
Abstract: A process for the production of an initiator composition (I) containing (A) an organoalkali metal and (B) an organoaluminum compound comprises homogeneously mixing the organometallic compounds dissolved in an inert hydrocarbon and allowing the mixture to mature at 0-120 deg C for at least 2 minutes. An Independent claim is included for a process for the anionic polymerization of monomers in the presence of the initiator (I).
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