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    51.
    发明专利
    未知

    公开(公告)号：ID17018A

    公开(公告)日：1997-12-04

    申请号：ID971894

    申请日：1997-06-03

    Applicant: BASF AG

    Inventor： JULIUS MANFRED ,  RUST HARALD ,  KRAUSE ALFRED ,  SIEGEL HARDO ,  SIEGEL WOLFGANG ,  WITZEL TOM

    IPC: C07B63/04 ,  C07D211/58 ,  C07D211/72 ,  C07D221/20 ,  C08K5/3435

    Abstract: PCT No. PCT/EP97/02763 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 28, 1997 PCT Pub. No. WO97/46528 PCT Pub. Date Dec. 11, 1997The invention relates to a process for reducing the dimerization of piperidines of the formula I where R1 to R4 are C1- to C6-alkyl, R1 and R2 and/or R3 and R4 together are a CH2 chain having 2 to 5 carbon atoms, which comprises adding to the piperidine from 0.001 to 0.2% by weight of a reducing agent of the formula MXH4-mYm, where M is an alkali metal, NR4, where R are identical or different C1-C4-alkyl groups, or an equivalent of an alkaline earth metal or an equivalent of zinc, X is boron or aluminum, Y is H or CN and m is 0 or 1. The invention also relates to a mixture of piperidines of the formula I, from 0.001 to 0.2% by weight of a reducing agent and from 1 to 1000 ppm of dimers of the piperidines of the formula I, and to the preparation of hindered amine light stabilizers therefrom.

    PROCEDIMIENTO PARA EVITAR LA CORROSION.
    52.
    发明专利
    PROCEDIMIENTO PARA EVITAR LA CORROSION. 未知

    公开(公告)号：ES2287766T3

    公开(公告)日：2007-12-16

    申请号：ES04765603

    申请日：2004-09-24

    Applicant: BASF AG

    Inventor： REUTEMANN WERNER ,  WEBER THEODOR ,  ROSS KARL-HEINZ ,  JULIUS MANFRED

    IPC: C07C209/86 ,  C07C209/16 ,  C07C209/90 ,  C07C211/04

    Abstract: Procedimiento para evitar la corrosión en la separación de metilaminas a partir de una corriente de productos (10) producida en la obtención de metilaminas mediante reacción en fase gaseosa de metanol y amoniaco, que contiene monometilamina, dimetilamina, trimetilamina, amoniaco y metanol como componentes, separándose amoniaco (11) mediante destilación pura en una primera columna (1), alimentándose a una segunda columna (2) los componentes restantes de la corriente de productos producidos como cola (12), separándose en la segunda columna (2) trimetilamina (14) mediante una destilación por extracción bajo alimentación de agua, alimentándose a una tercera columna (3) los demás componentes de la corriente de productos de una tercera columna (3), que se forman como cola (15) de la segunda columna (2), separándose en la tercera columna (3) monometilamina y dimetilamina, y separándose la monometilamina y la dimetilamina en una cuarta columna (4) mediante destilación, caracterizado porque en la cola (15) o en la parte de extracción de la segunda columna (2), o a la alimentación (17) de la tercera columna (3) se añade hidróxido alcalino.

    53.
    发明专利
    未知

    公开(公告)号：DE50308078D1

    公开(公告)日：2007-10-11

    申请号：DE50308078

    申请日：2003-08-06

    Applicant: BASF AG

    Inventor： FUNKE FRANK ,  HILL THOMAS ,  VON WATZDORF JOBST RUEDIGER ,  MATTMANN WOLFGANG ,  HARDER WOLFGANG ,  HENKES ERHARD ,  LITTMANN GERD ,  JULIUS MANFRED

    IPC: C07C209/54 ,  C07C209/84 ,  C07B61/00 ,  C07C29/68 ,  C07C209/82 ,  C07C209/86 ,  C07C211/36

    Abstract: Pure isophorone-diamine (IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 is obtained by (a) making crude IPDA with a CTR below 73/27, (b) purifying and separating into fractions with CTR of at least 73/27 (b1) and below 63/37 (b2), (c) isomerizing (b2) in presence of hydrogen, ammonia and catalyst to give IPDA with a CTR of 63/37-66/34 which is recycled to stage (a). A method (M1) for the production of substantially pure 3-aminomethyl-3,5,5-trimethyl cyclohexylamine (isophorone-diamine; IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 involves: (a) preparation of crude IPDA with a CTR of less than 73/27, (b) purification and separation to give fractions (b1) with a CTR of at least 73/27 and (b2) with a CTR of less than 63/27 and (c) isomerization of (b2) in presence of hydrogen, ammonia and a hydrogenation catalyst to give IPDA with a CTR of 63/37-66/34 which is then recycled to stage (a). An Independent claim is also included for a method (M2) for the production of IPDA with a CTR in the range 63/37 to 66/34 by reacting IPDA with any CTR value with hydrogen and ammonia in presence of a hydrogenation catalyst.

    54.
    发明专利
    未知

    公开(公告)号：AT371638T

    公开(公告)日：2007-09-15

    申请号：AT03790870

    申请日：2003-08-06

    Applicant: BASF AG

    Inventor： FUNKE FRANK ,  HILL THOMAS ,  VON WATZDORF JOBST ,  MATTMANN WOLFGANG ,  HARDER WOLFGANG ,  HENKES ERHARD ,  LITTMANN GERD ,  JULIUS MANFRED

    IPC: C07C209/54 ,  C07C209/84 ,  C07B61/00 ,  C07C29/68 ,  C07C209/82 ,  C07C209/86 ,  C07C211/36

    Abstract: Pure isophorone-diamine (IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 is obtained by (a) making crude IPDA with a CTR below 73/27, (b) purifying and separating into fractions with CTR of at least 73/27 (b1) and below 63/37 (b2), (c) isomerizing (b2) in presence of hydrogen, ammonia and catalyst to give IPDA with a CTR of 63/37-66/34 which is recycled to stage (a). A method (M1) for the production of substantially pure 3-aminomethyl-3,5,5-trimethyl cyclohexylamine (isophorone-diamine; IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 involves: (a) preparation of crude IPDA with a CTR of less than 73/27, (b) purification and separation to give fractions (b1) with a CTR of at least 73/27 and (b2) with a CTR of less than 63/27 and (c) isomerization of (b2) in presence of hydrogen, ammonia and a hydrogenation catalyst to give IPDA with a CTR of 63/37-66/34 which is then recycled to stage (a). An Independent claim is also included for a method (M2) for the production of IPDA with a CTR in the range 63/37 to 66/34 by reacting IPDA with any CTR value with hydrogen and ammonia in presence of a hydrogenation catalyst.

    57.
    发明专利
    未知

    公开(公告)号：DE102005029095A1

    公开(公告)日：2007-01-18

    申请号：DE102005029095

    申请日：2005-06-23

    Applicant: BASF AG

    Inventor： HAESE FRANK ,  WULFF-DOERING JOACHIM ,  KOEHLER ULRICH ,  GAA PETER ,  PAPE FRANK-FRIEDRICH ,  MELDER JOHANN-PETER ,  JULIUS MANFRED

    IPC: C07C209/60 ,  B01J23/40 ,  C07C209/86 ,  C07C211/43

    Abstract: Processes comprising: providing an aromatic alcohol; and reacting the aromatic alcohol with ammonia at a temperature of 80 to 350° C. in the presence of hydrogen and a heterogeneous catalyst to form a crude reaction product comprising a corresponding primary aromatic amine, wherein the heterogeneous catalyst comprises a catalytically active composition which, prior to reduction with hydrogen, comprises 90 to 99.8% by weight of zirconium dioxide (ZrO2), 0.1 to 5.0% by weight of an oxygen-comprising compound of palladium, and 0.1 to 5.0% by weight of an oxygen-comprising compound of platinum.

    59.
    发明专利
    未知

    公开(公告)号：BR9908933A

    公开(公告)日：2005-10-25

    申请号：BR9908933

    申请日：1999-03-18

    Applicant: BASF AG

    Inventor： BREINER ULRIKE ,  JULIUS MANFRED ,  NEUBERG RAINER ,  WEISS ROBERT ,  WILMS AXEL ,  HU HARRY Y

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28 ,  C08G69/48 ,  C08K5/3435

    Abstract: A process for preparing polyamides comprises polymerizing starting monomers or starting oligomers in the presence of at least one compound of the formula (I)whereR is a functional group R which bears 1-4 identical or different amide-forming groups R ,R is H, C1-C20-alkyl, cycloalkyl, benzyl or OR , where R is H, C1-C20-alkyl, cycloalkyl or benzyl,R , R , R and R are independently C1-C10-alkyl,n is a natural number greater than 1, andthe piperidine derivatives attached to R are identical or different with regard to the substituents, meaning R , R , R , R and R .The polyamides are useful for preparing filaments, fibers, films, sheetlike structures and moldings.

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