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公开(公告)号：JP2000033246A
公开(公告)日：2000-02-02
申请号：JP18750799
申请日：1999-07-01
Applicant: BASF AG
Inventor： MEHLER CHRISTOF DR , GOTTSCHALK AXEL , BREINER ULRIKE DR , STADLER REIMUND ERICH , GOLDACKER THORSTEN
Abstract: PROBLEM TO BE SOLVED: To adjust permeability and to improve separation technology by using a microphase separation polymer blend containing an A-B-C three-block copolymer having an elastomeric middle block B and an A'-C' two-block copolymer. SOLUTION: A microphase separation polymer blend comprising an A-B-C threeblock copolymer and an A'-C' two-block copolymer is used in order to produce a permeable membrane. A suitable A-B-C three-block copolymer has an elastomeric middle block B. An olefinic unsaturated compound of specified conditions is used in order to form the block B. In order to produce an A-B-C/A '-C' polymer blend, the two-block copolymer and the three-block copolymer are added into an organic solvent, and the solution is poured in a polar liquid medium such as methanol, ethanol, water, and the mixture of them. This deposition/precipitation treatment is done under strong stirring.
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公开(公告)号：DE19629647A1
公开(公告)日：1998-01-29
申请号：DE19629647
申请日：1996-07-23
Applicant: BASF AG
Inventor： GOTTSCHALK AXEL DR , MEHLER CHRISTOF DR , STADLER REIMUND PROF DR , JUNG KARSTEN , MORSCHHAEUSER ROMAN
IPC: C08F297/04
Abstract: Block copolymers comprise: (a) at least 3 blocks A, built up from at least 3 of varying monomer constitutional units, each block being only directly connected with blocks with which it is incompatible; and (b) end blocks E and E , different from each other, the end block E developing attractive molecular interaction with the end block E .
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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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公开(公告)号：DE19728541A1
公开(公告)日：1999-01-07
申请号：DE19728541
申请日：1997-07-04
Applicant: BASF AG
Inventor： SCHNEIDER MICHAEL DR , GOTTSCHALK AXEL DR , KNOLL KONRAD DR , MEHLER CHRISTOF DR , WARZELHAN VOLKER DR
Abstract: Impact resistant thermoplastic moulding compound (I) containing (A) \- 50 wt% copolymer of 15-63 wt% 1,1-diphenylethylene (DPE) and 37-85 wt% styrene; (B) 5-35 wt% of a tri-block copolymer of (b 1) a block consisting mainly of the comonomer units in copolymer (A), (b 2) an elastomeric block and (b 3) a polystyrene block; (C) \- 5 wt% polystyrene and/or a polymer which is miscible with polystyrene; and (D) 0-40 wt% rubber.
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公开(公告)号：DE19724914A1
公开(公告)日：1998-12-17
申请号：DE19724914
申请日：1997-06-12
Applicant: BASF AG
Inventor： MEHLER CHRISTOF DR , GRUBER FREDDY DR , LADENBERGER VOLKER DR
IPC: C08F297/04 , C10L1/16 , C10M143/12 , C08F297/00
Abstract: A hydrogenated star-shaped polymer (I) has (a) a nucleus of a poly(polyalkenyl aromatic coupling agent) (II) and (b) a number of arms consisting of hydrogenated polymer chains comprising cone shaped copolymers of 4-12C conjugated dienes and 8-12 C monoalkenyl aromatics. The hydrogenated polymer chains comprise a multi-block copolymer with at least 2 blocks of the cone shaped copolymer of the diene and monoalkenyl aromatic. Also claimed is a process for the production of (I) by (i) solution polymerisation of a 4-12C conjugated diene and a monoalkenyl aromatic in the presence of an anionic polymerisation initiator to form a living cone shaped copolymer, (ii) reaction of the resulting product with a 10-20C polyalkenyl aromatic coupling agent (II) or a mixture of (II) with a 8-12C alkenyl aromatic to form a star shaped polymer and (iii) deactivation and hydrogenation of the resulting polymer.
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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：DE19729817A1
公开(公告)日：1999-01-14
申请号：DE19729817
申请日：1997-07-11
Applicant: BASF AG
Inventor： RISSE WILHELM DR , MEHLER CHRISTOF DR , CONNOR ERIC
Abstract: A process for the production of cyclopentadiene homopolymers (CpP), using a palladium complex catalyst of formula ÄPd(R CN)4Ü )2 (I), in which R = 1-8C alkyl; A = a stable anion. Also claimed are: (i) CpP with a mol. wt. of 10,000 to 1 million and fewer than 35% 1,2-linkages, obtained by this process; (ii) a Pd catalyst as above (I), optionally combined with a palladium- coordinated olefin or diolefin (especially dicyclopentadiene, cyclopentene, norbornadiene, allyl and/or cyclo-octadiene).
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公开(公告)号：DE19728542A1
公开(公告)日：1999-01-07
申请号：DE19728542
申请日：1997-07-04
Applicant: BASF AG
Inventor： SCHNEIDER MICHAEL DR , GOTTSCHALK AXEL DR , KNOLL KONRAD DR , MEHLER CHRISTOF DR , WARZELHAN VOLKER DR
Abstract: Impact resistant thermoplastic moulding compound (I) containing (A) \- 50 wt% copolymer of 15-63 wt% 1,1-diphenylethylene (DPE) and 37-85 wt% styrene; (B) 5-35 wt% of a tri-block copolymer of (b 1) a block consisting mainly of the comonomer units in copolymer (A), (b 2) an elastomeric block and (b 3) a polystyrene block; (C) \- 5 wt% polystyrene and/or a polymer which is miscible with polystyrene; and (D) 0-40 wt% rubber.
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公开(公告)号：DE19713878A1
公开(公告)日：1998-10-08
申请号：DE19713878
申请日：1997-04-04
Applicant: BASF AG
Inventor： SCHNEIDER MICHAEL DR , GOTTSCHALK AXEL DR , KNOLL KONRAD DR , MEHLER CHRISTOF DR , WARZELHAN VOLKER DR
Abstract: A toughened thermoplastic moulding composition (I) contains: (A) 50-80 wt.% of a copolymer comprising (with respect to (A)) polymerised units of (A1) 15-63 wt.% 1,1-diphenylethylene and (A2) 37-85 wt.% styrene; (B) 5-35 wt.% of a tri-block copolymer comprising blocks (B1), block composed of comonomers of (A), (B2) an elastomeric block and, (B3) polystyrene; (C) at least 5 wt.% polystyrene and/or a polymer miscible with polystyrene and; (D) 0.1-40 wt.% of a rubber.
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公开(公告)号：DE19652312A1
公开(公告)日：1998-06-18
申请号：DE19652312
申请日：1996-12-16
Applicant: BASF AG
IPC: C08F293/00 , C08F295/00 , C08F297/00 , C08G81/02
Abstract: In a method for the production of linear block copolymers, which contain at least a sequence A-B-C of a block A of radically polymerizable monomers (a), a block B of monomers (b) and a block C of radically polymerizable monomers (c), the monomers (a), (b) and (c), which are different from each other, are made to react with (1) radical polymerization of monomers (c) with a macro radical initiator (I) of general formula Y-B-X-B-Y, in which X and Y are divisible functional groups upon formation of radicals, whereby X can be separated without fission from Y, under conditions leading to the formation of macro radical initiators (II) which contain the sequence Y-B-C, by selectively separating X and by polymerizing (c), (2) radical polymerization of monomers (a) with the macro radical initiator (II) by separating Y and forming linear block copolymers containing the sequence A-B-C. The block copolymers have the sequences A-B-C, A-B-C-B-A, C-B-A-B-C or A-B-C-B-A-B-C-B-A.
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