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公开(公告)号：AU1230999A
公开(公告)日：1999-05-31
申请号：AU1230999
申请日：1998-10-21
Applicant: BASF AG
Inventor： FISCHER WOLFGANG , BAUMGARTEL MICHAEL , LOTH WOLFGANG , SCHADE CHRISTIAN , WITTSTOCK KLAUS
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公开(公告)号：AU9436098A
公开(公告)日：1999-03-22
申请号：AU9436098
申请日：1998-08-19
Applicant: BASF AG
Inventor： LATSCH STEFAN , LOTH WOLFGANG , NIESSNER NORBERT , FISCHER WOLFGANG
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公开(公告)号：ES2119508T3
公开(公告)日：1998-10-01
申请号：ES95942075
申请日：1995-12-07
Applicant: BASF AG
Inventor： KNOLL KONRAD , LOTH WOLFGANG , FISCHER WOLFGANG , GAUSEPOHL HERMANN
Abstract: PCT No. PCT/EP95/04809 Sec. 371 Date Jun. 16, 1997 Sec. 102(e) Date Jun. 16, 1997 PCT Filed Dec. 7, 1995 PCT Pub. No. WO96/18682 PCT Pub. Date Jun. 20, 1996Toughened vinyl aromatic compounds, in particular high impact polystyrene, are prepared by a continuous process in which the vinyl aromatic compound and the impact modifier, an elastomeric block copolymer, are each prepared separately in a reaction zone by anionic polymerization, with or without heat exchange with the environment and, if required, with the addition of a solvent, and are polymerized until complete conversion is achieved, and the living chain ends are terminated in a manner known per se, and a thermoplastic, toughened molding material is based on a vinyl aromatic compound having a residual content of less than 50 ppm of monomers and less than 100 ppm of oligomers.
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公开(公告)号：BR0112427A
公开(公告)日：2003-07-08
申请号：BR0112427
申请日：2001-07-10
Applicant: BASF AG
Inventor： BASSLER PETER , WINTERLING HELMUT , FISCHER ROLF-HARTMUTH , LOTH WOLFGANG
Abstract: The continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water in the presence of an organic liquid diluent at from 90 to 400° C. and from 0.1 to 35x10 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in stage 1 in the presence of a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid phase or a first solid phase or a mixture of first solid and first liquid phases and so that the first gas phase is separated from the first liquid phase or first solid phase or from the mixture of first liquid and first solid phases, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phases with a gaseous or liquid phase comprising water at from 150 to 370° C. and from 0.1 to 30x10 Pa, to obtain a product mixture.
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公开(公告)号：DE59905005D1
公开(公告)日：2003-05-15
申请号：DE59905005
申请日：1999-12-24
Applicant: BASF AG
Inventor： HUEFFER STEPHAN , KREBS THILO , LOTH WOLFGANG , RUMPF BERND , STURM JUERGEN , DIEBOLD BERND , KORKHAUS JUERGEN , NILGES JOACHIM , FRANKE AXEL
IPC: C08F2/01 , C08F10/00 , C23C18/16 , C23C18/31 , C23C18/34 , C23C18/36 , C23C18/40 , C23C18/48 , C23C18/50 , C23C18/52 , F28F19/02 , F28F19/06
Abstract: The present invention relates to a process for coating apparatuses and apparatus parts for chemical plant construction-which are taken to mean, for example, apparatus, tank and reactor walls, discharge devices, valves, pumps, filters, compressors, centrifuges, columns, dryers, comminution machines, internals, packing elements and mixing elements-wherein a metal layer or a metal/polymer dispersion layer is deposited in an electroless manner on the apparatus(es) or apparatus part(s) to be coated by bringing the parts into contact with a metal electrolyte solution which, in addition to the metal electrolyte, comprises a reducing agent and optionally the polymer or polymer mixture to be deposited in dispersed form, where at least one polymer is halogenated.
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Patent Agency Ranking
公开(公告)号：CA2415653A1
公开(公告)日：2002-01-31
申请号：CA2415653
申请日：2001-07-10
Applicant: BASF AG
Inventor： LOTH WOLFGANG , FISCHER ROLF-HARTMUTH , WINTERLING HELMUT , BASSLER PETER
Abstract: The invention relates to a continuous method for producing a polyamide by reacting at least one aminonitrile with water. Said method comprises the following steps: (1) at least one aminonitrile is reacted with water in the presence of an organic liquid diluting agent at a temperature of 90 to 400 ~ C and a pressure of 0.1 to 35 x 106 Pa in a stream tube containing a Brönsted acid catalyst selected from a beta-zeolite, phyllosilicate, or titanium dioxide catalyst consisting of 70 to 100 wt. % of anatase and 0 to 30 wt. % of rutile, in which up to 40 wt. % of the titanium dioxide can be replaced by tungsten oxide, in order to obtain a reaction mixture, (2) the reaction mixture is further reacted at a temperature of 150 to 400 ~C and a pressure which is lower than the pressure in step 1, in the presence of a Brönsted ac id catalyst selected from a beta-zeolite, phyllosilicate, or titanium dioxide catalyst consisting of 70 to 100 wt. % anatase and 0 to 30 wt. % rutile, in which up to 40 wt. % of the titanium dioxide can be replaced by tungsten oxide, the temperature and the pressure being chosen in such a way that a first gas phase and a first liquid phase or a first solid phase or a mixture of a first solid phase and a first liquid phase is obtained, the first gas phase being separated from thefirst liquid phase or first solid phase or the mixture of the first liquid phase and first solid phase, and (3) the first liquid phase or the first solid phase or the mixture of the first liquid pha se and first solid phase is mixed with a gaseous phase or a liquid phase containing water, at a temperature of 150 to 370 ~C and a pressure of 0.1 to 30 x 106 Pa, in order to obtain a product mixture.
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公开(公告)号：DE59603291D1
公开(公告)日：1999-11-11
申请号：DE59603291
申请日：1996-06-20
Applicant: BASF AG
Inventor： LOTH WOLFGANG , KNOLL KONRAD , GAUSEPOHL HERMANN
Abstract: A molding material as based on from 60 to 98% by weight of a hard matrix A comprising polymerized or copolymerized units of at least one vinylaromatic monomer or at least one vinylaromatic monomer and at least one polar comonomer and from 2 to 40% by weight, the percentages in each case being based on the molding material comprising A and B, of a soft phase B formed from a hydrogenated or unhydrogenated block copolymer prepared by anionic polymerization and comprising a vinylaromatic monomer V and a diene D, having at least one random or quasi-random block (V/D) of vinylaromatic monomer and diene and containing from 10 to 80% by weight, based on the soft phase B, of occlusions of matrix material (a) formed during the polymerization of the hard matrix A in the presence of the block rubber, and said molding material is used for the production of films, sheets or moldings.
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公开(公告)号：DE59503094D1
公开(公告)日：1998-09-10
申请号：DE59503094
申请日：1995-12-07
Applicant: BASF AG
Inventor： KNOLL KONRAD , LOTH WOLFGANG , FISCHER WOLFGANG , GAUSEPOHL HERMANN
Abstract: PCT No. PCT/EP95/04809 Sec. 371 Date Jun. 16, 1997 Sec. 102(e) Date Jun. 16, 1997 PCT Filed Dec. 7, 1995 PCT Pub. No. WO96/18682 PCT Pub. Date Jun. 20, 1996Toughened vinyl aromatic compounds, in particular high impact polystyrene, are prepared by a continuous process in which the vinyl aromatic compound and the impact modifier, an elastomeric block copolymer, are each prepared separately in a reaction zone by anionic polymerization, with or without heat exchange with the environment and, if required, with the addition of a solvent, and are polymerized until complete conversion is achieved, and the living chain ends are terminated in a manner known per se, and a thermoplastic, toughened molding material is based on a vinyl aromatic compound having a residual content of less than 50 ppm of monomers and less than 100 ppm of oligomers.
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公开(公告)号：MX9710011A
公开(公告)日：1998-07-31
申请号：MX9710011
申请日：1997-12-10
Applicant: BASF AG
Inventor： GAUSEPOHL HERMANN , FISCHER WOLFGANG , LOTH WOLFGANG
IPC: C08F2/00 , C08F279/02 , C08F287/00 , C08F297/04 , C08F279/04
Abstract: En particular, los materiales de moldeo de polímero de estireno de gran impacto y estireno/acrilonitrilo se preparan en solucion en dos etapas mediante un proceso en el cual el copolímero de bloque de estireno/butadieno, cuyos extremos de cadena viviente si se requiere se acoplan y/o se terminan, se prepara mediante polimerizacion anionica en una primero zona de reaccion que, por lo menos en su ultima seccion, en la direccion de trabajo, consiste de un reactor que tiene un flujo de tapon, en particular un reactor de tubo, y el copolímero de bloque se alimenta directamente a una segunda zona de reaccion de la cual el homopolímero de estireno se propara mediante polimerizacion de radical libre o copolimerizacion.
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公开(公告)号：DE102005054151A1
公开(公告)日：2007-05-16
申请号：DE102005054151
申请日：2005-11-14
Applicant: BASF AG
Inventor： GUENTHERBERG NORBERT , HOFMANN JUERGEN , WASMER KARL-HEINZ , LOTH WOLFGANG , SCHIERHOLZ JENS-UWE , SCHMAUS PAULUS , MOURS MARIAN , SCHADE CHRISTIAN , ITTEMANN PETER , HEINEN HARTMUT , CZAUDERNA BERNHARD , SAUER MICHAEL , BARDON RAINER , KRUEGER MARCO
Abstract: The invention relates to a tube bundle heat exchanger (R) for removing dissolved substances from a polymer solution (P) by degassing, having a bundle of tubes (R) which are arranged parallel to one another and vertically and are fastened at both ends in each case in one tube plate (B), and having a degassing region below the lower tube plate (B), having an insert (1) in each tube (R), which insert (1) narrows the free throughflow cross section through the tube (R), and wherein the polymer solution (P) is supplied into the tubes (R) in a single-phase liquid state, and having a casing space around the tubes (R) which is traversed by a heat carrier, wherein the degassing takes place by means of a pressure drop between the inlet pressure of the polymer solution (P) in the tube bundle heat exchanger (R) and the degassing region, characterized in that each insert (1) is designed in such a way as to generate a pressure step between the inlet pressure and the pressure in the degassing region, by means of which pressure step a predefined low residual content of dissolved substances is obtained in the degassed polymer, and an additional heat input which is necessary for this purpose takes place via the heat carrier into the single-phase liquid polymer solution (P).
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