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    Production of 3,3-bis-(4-hydroxyaryl)-oxindole compounds, useful for the production of branched polycarbonates comprises recrystallization with addition of an oxidizing or reducing agent
    12.
    发明专利
    Production of 3,3-bis-(4-hydroxyaryl)-oxindole compounds, useful for the production of branched polycarbonates comprises recrystallization with addition of an oxidizing or reducing agent 未知

    公开(公告)号：DE10202874A1

    公开(公告)日：2003-08-07

    申请号：DE10202874

    申请日：2002-01-25

    Applicant: BASF AG

    Inventor： KROLL MANFRED ,  KLUMPE MARKUS ,  REICHELT HELMUT ,  BLANKERTZ HEINRICH-JOSEF

    IPC: C07D209/34 ,  C08G64/02 ,  C08G64/12 ,  C08G64/16

    Abstract: A process for the production of 3,3-bis-(4-hydroxyaryl)-oxindole compounds (I) having an APHA color number of less than 20 Hazens comprises preparation of crude (I) with a purity of at least 90 % and purification of the crude product by recrystallization from glacial acetic acid or ethanol with addition of an oxidizing or reducing agent, optionally in the presence of activated carbon. A process for the production of 3,3-bis-(4-hydroxyaryl)-oxindole compounds (I) having an APHA color number of less than 20 Hazens comprises: (A) preparation of crude 3,3-bis-(4-hydroxyaryl)-oxindole with a purity of at least 90 %; and (B) purification of the crude product by recrystallization from glacial acetic acid or ethanol with addition of an oxidizing or reducing agent, optionally in the presence of activated carbon. Independent claims are included for: (i) 3,3-bis-(4-hydroxyaryl)-oxindole having an APHA number of less than 20, preferably of no greater than 7 Hazens; (ii) a branched polycarbonate containing 3,3-bis-(4-hydroxyaryl)-oxindole compounds (I); and (iii) a process for the purification of crude 3,3-bis-(4-hydroxyaryl)-oxindole with a purity of at least 90 % by recrystallization from glacial acetic acid or ethanol with addition of an oxidizing or reducing agent, optionally in the presence of activated carbon.

    14.
    发明专利
    未知

    公开(公告)号：DE59504146D1

    公开(公告)日：1998-12-10

    申请号：DE59504146

    申请日：1995-02-15

    Applicant: BASF AG

    Inventor： SENS RUEDIGER ,  SCHEFCZIK ERNST ,  REICHELT HELMUT ,  ETZBACH KARL-HEINZ

    IPC: B41M5/385 ,  B41M5/30 ,  B41M5/388 ,  B41M5/39 ,  C07D471/04 ,  C07D487/04 ,  C09B23/00 ,  C09B23/04 ,  C09B23/10 ,  C09B55/00 ,  C09B57/00 ,  D06P5/13 ,  B41M5/38

    Abstract: PCT No. PCT/EP95/00564 Sec. 371 Date Aug. 19, 1996 Sec. 102(e) Date Aug. 19, 1996 PCT Filed Feb. 15, 1995 PCT Pub. No. WO95/22581 PCT Pub. Date Aug. 24, 1995Triazolopyridine dyes of the formula where one of the two radicals A and E is nitrogen and the other is a radical of the formula C-R1, where R1 is unsubstituted or substituted C1-C20-alkyl, unsubstituted or substituted phenyl or unsubstituted or substituted mercapto, Q is a radical of the formula where R2 is a carbocyclic or heterocyclic radical, R3 is unsubstituted or substituted C1-C4-alkyl, C1-C4-alkoxycarbonyl or unsubstituted or substituted phenyl, R4 is cyano, carbamoyl, carboxyl, C1-C4-alkoxycarbonyl or benzothiazolyl or R3 and R4 together are the remainder of a fused-on benzene ring and X is CH or nitrogen, and R5 is oxygen or a radical of a compound with an acidic CH, and a process for the thermal transfer of these dyes.

    15.
    发明专利
    未知

    公开(公告)号：DE59503802D1

    公开(公告)日：1998-11-05

    申请号：DE59503802

    申请日：1995-07-13

    Applicant: BASF AG

    Inventor： LAMM GUNTHER ,  REICHELT HELMUT ,  GRUND CLEMENS

    IPC: C07D271/06 ,  C09B51/00

    Abstract: PCT No. PCT/EP95/02745 Sec. 371 Date Jan. 21, 1997 Sec. 102(e) Date Jan. 21, 1997 PCT Filed Jul. 13, 1995 PCT Pub. No. WO96/03463 PCT Pub. Date Feb. 8, 1996Nitro dyes of the formula where X1 and X2 are hydrogen, C1-C6-alkyl, C1-C6-alkoxy or pyrrolidin-2-on-1-yl, X3 is hydrogen or C1-C6-alkyl, and X4 is a radical of the formula unsubstitued C1-C12-alkyl, substituted or unsubstituted C3-C7-cycloalkyl or substituted or unsubstituted phenyl, R2 and R3 are hydrogen, C1-C6-alkyl or C1-C6-alkoxy, R4 is hydrogen, methyl, ethyl, methoxy or ethoxy, and R5 is hydrogen or C1-C6-alkyl, are useful for dyeing or printing textile materials.

    16.
    发明专利
    未知

    公开(公告)号：BR9306359A

    公开(公告)日：1998-06-30

    申请号：BR9306359

    申请日：1993-04-30

    Applicant: BASF AG

    Inventor： GRUETTNER-MERTEN SABINE ,  REICHELT HELMUT ,  DEGEN HELMUT ,  LANGE ARNO

    IPC: C09B29/033 ,  C09B29/00 ,  C09B29/042 ,  C09B29/09 ,  C09B43/00 ,  C09B67/48 ,  D06P1/18

    Abstract: PCT No. PCT/EP93/01043 Sec. 371 Date Sep. 30, 1994 Sec. 102(e) Date Sep. 30, 1994 PCT Filed Apr. 30, 1993 PCT Pub. No. WO93/23479 PCT Pub. Date Nov. 25, 1993.Azo dyes of the formula where L1 is hydrogen, C1-C8-alkyl or phenyl, L2 and L3 are each substituted or unsubstituted C1-C8-alkyl, or together a radical of the formula where n is 0, 1 or 2, Y1 and Y4 are hydrogen, hydroxymethyl, 1,2-dihydroxyethyl or a radical of the formula COO(+)M(-) or SO3(-)M(+), Y2 and Y3 are halogen or hydroxymethyl, and M(+) is the equivalent of a cation, L4 is hydrogen, substituted or unsubstituted C1-C8-alkyl, substituted or unsubstituted phenyl, halogen, C1-C8-alkoxy, substituted or unsubstituted phenoxy, C1-C8-alkylthio, C1-C8-alkylsulfonyl, substituted or unsubstituted phenylthio, substituted or unsubstituted phenylsulfonyl, C1-C8-alkoxycarbonyl, C3-C6-alkenyloxycarbonyl or phenoxycarbonyl, X is nitrogen or the radical C-L5, where L5 is as defined in the specification, K is the radical of a coupling component, and novel crystal forms of thienylazobenzene dyes are useful for dyeing or printing textile materials.

    19.
    发明专利
    未知

    公开(公告)号：BR9506824A

    公开(公告)日：1997-09-09

    申请号：BR9506824

    申请日：1995-02-15

    Applicant: BASF AG

    Inventor： SENS RUEDIGER ,  SCHEFCZIK ERNS ,  REICHELT HELMUT ,  ETZBACH KARL-HEINZ

    IPC: B41M5/385 ,  B41M5/30 ,  B41M5/388 ,  B41M5/39 ,  C07D471/04 ,  C07D487/04 ,  C09B23/00 ,  C09B23/04 ,  C09B23/10 ,  C09B55/00 ,  C09B57/00 ,  D06P5/13 ,  B41M5/38

    Abstract: PCT No. PCT/EP95/00564 Sec. 371 Date Aug. 19, 1996 Sec. 102(e) Date Aug. 19, 1996 PCT Filed Feb. 15, 1995 PCT Pub. No. WO95/22581 PCT Pub. Date Aug. 24, 1995Triazolopyridine dyes of the formula where one of the two radicals A and E is nitrogen and the other is a radical of the formula C-R1, where R1 is unsubstituted or substituted C1-C20-alkyl, unsubstituted or substituted phenyl or unsubstituted or substituted mercapto, Q is a radical of the formula where R2 is a carbocyclic or heterocyclic radical, R3 is unsubstituted or substituted C1-C4-alkyl, C1-C4-alkoxycarbonyl or unsubstituted or substituted phenyl, R4 is cyano, carbamoyl, carboxyl, C1-C4-alkoxycarbonyl or benzothiazolyl or R3 and R4 together are the remainder of a fused-on benzene ring and X is CH or nitrogen, and R5 is oxygen or a radical of a compound with an acidic CH, and a process for the thermal transfer of these dyes.

    NITROCOLORANTES.
    20.
    发明专利
    NITROCOLORANTES. 未知

    公开(公告)号：MX9700545A

    公开(公告)日：1997-05-31

    申请号：MX9700545

    申请日：1995-07-13

    Applicant: BASF AG

    Inventor： LAMM GUNTHER ,  REICHELT HELMUT ,  GRUND CLEMENS

    IPC: C07D271/06 ,  C09B51/00

    Abstract: Nitrocolorantes de la formula (I), en donde X1 y X2 son hidrogeno, alquilo de 1 a 6 átomos de carbono, alcoxi de 1 a 6 átomos de carbono o pirrolidin-2-ona-1-ilo, X3 es hidrogeno o alquilo de 1 a 6 átomos de carbono X4 es un radical de la formula (a), (b) o (c), en donde R1 es hidrogeno, alquilo de 1 a 12 átomos de carbono posiblemente substituido, cicloalquilo de 3 a 7 átomos de carbono posible substituido o fenilo posiblemente substituido, R2 y R3 son hidrogeno alquilo de 1 a 6 átomos de carbono o alcoxi de 1 a 6 átomos de carbono, R4 es hidrogeno, metilo, etilo, metoxi, o etoxi y R5 es hidrogeno o alquilo de 1 a 6 átomos de carbono y el proceso para su produccion y su uso en el teñido o estampado de textiles.

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