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    2.
    发明专利
    未知

    公开(公告)号：DE59503449D1

    公开(公告)日：1998-10-08

    申请号：DE59503449

    申请日：1995-06-16

    Applicant: BASF AG

    Inventor： BECKMANN STEFAN ,  ETZBACH KARL-HEINZ ,  SENS RUEDIGER

    IPC: G02F1/35 ,  C07D277/42 ,  C09B23/00 ,  C09B23/01 ,  C09B23/04 ,  C09B23/06 ,  C09B69/10 ,  G02F1/355 ,  G02F1/361

    Abstract: PCT No. PCT/EP95/02328 Sec. 371 Date Dec. 24, 1996 Sec. 102(e) Date Dec. 24, 1996 PCT Filed Jun. 16, 1995 PCT Pub. No. WO96/00409 PCT Pub. Date Jan. 4, 1996Naphthalene derivatives of the formula where the rings A and B may be benzofused, X is nitrogen or a radical of the formula CH or CH=CH-CH, Z is a heterocyclic radical or additionally, when x is CH=CH-CH, a 5- or 6-membered aromatic carbocyclic radical, and R1, R2 and R3 are hydrogen, C1-C4-alkyl or C5-C7-cycloalkyl, are useful in nonlinear optics.

    3.
    发明专利
    未知

    公开(公告)号：DE19851984A1

    公开(公告)日：2000-05-18

    申请号：DE19851984

    申请日：1998-11-11

    Applicant: BASF AG

    Inventor： AICHINGER HEINRICH ,  HERBST HOLGER ,  NESTLER GERHARD ,  SCHROEDER JUERGEN ,  BECKMANN STEFAN

    IPC: C07C67/08 ,  C07C67/327 ,  C07C67/60 ,  C07C69/54

    Abstract: A method for esterifying (meth)acrylic acid with an alkanol in the presence of an esterification catalyst, whereby non-reacted starting compounds and the (meth)acrylic acid ester that is to be formed are separated by means of distillation and a bottom product containing an oxyester is created. The bottom product is separated and then the oxyesters contained therein are re-separated in the presence of a longer chained alkylbenzene sulfonic acid at a high temperature.

    Methine and azamethine dyes based on trifluoromethyl-substituted 5-membered heterocycles
    4.
    发明专利
    Methine and azamethine dyes based on trifluoromethyl-substituted 5-membered heterocycles 未知

    公开(公告)号：DE19920808A1

    公开(公告)日：1999-11-18

    申请号：DE19920808

    申请日：1999-05-06

    Applicant: BASF AG

    Inventor： WUERTHNER FRANK ,  SENS RUEDIGER ,  SCHMIDT ANDREAS-JOHANN ,  ETZBACH KARL-HEINZ ,  BECKMANN STEFAN

    IPC: C09B23/00 ,  B41J31/00 ,  C09B23/04 ,  C09B23/10 ,  C09B55/00 ,  D06P3/52 ,  D06P5/00 ,  C09B23/16

    Abstract: Methine and azamethine dyes based on trifluoromethyl-substituted 5-membered heterocycles are new. Dyes of formula Q -X=Het (I) are claimed, where: X = CH or N; Q = group of formula (IIA) to (IIM): Het = two-valent radical of formula (III) or (IV): n = 0 or 1; Z = H; 1-13C alkyl optionally interrupted with 1-3 oxygens; 1-4C alkoxy, 1-4C alkylsulfonylamino, mono- or di-alkylaminosulfonyl; -NHCOZ or NHCO2Z ; Z = H, 1-4C alkyl(oxy); Z , Z = H; 1-13C alkyl optionally interrupted with 1-3 oxygens; 3-4C alkenyl; 5-7C cycloalkyl, phenyl or tolyl or together with the linking nitrogen form a 5 or 6 membered heterocycle with or without further heteroatoms; Z = H or 1-4C alkyl; Z = H; halogen; 1-3C alkyl; optionally substituted phenyl or benzyl; 5-7C cycloalkyl; thienyl; hydroxyl; 1-4C alkoxy or alkylthio; 1-13C monoalkylamino; Z = H, 1-13C alkyl, optionally substituted phenyl, cyano or 1-13C alkoxycarbonyl; Z = phenyl, benzyl, tolyl, Y = O, S, imino, 1-4C alkylimino, optionally substituted phenylimino or an acidic -CH compound radical; A = N or a radical C-U; U = H; 1-13C alkyl optionally interrupted with 1-3 oxygens; halogen, cyano or 1-13C alkoxycarbonyl; E = O, S, Se, imino, 1-4C alkylimino or optionally substituted phenylimino. Independent claims are included for: (1) A process of transferring dyes from a support to a polymer coated paper by diffusion or sublimation with the aid of an energy source. On the support are located one or more dyes of formula Q -X=Het (IA); (2) A process for dyeing or printing synthetic materials using (IA). Q = five or six membered carbocyclic or heterocyclic radical.

    6.
    发明专利
    未知

    公开(公告)号：DE59909357D1

    公开(公告)日：2004-06-03

    申请号：DE59909357

    申请日：1999-11-05

    Applicant: BASF AG

    Inventor： AICHINGER HEINRICH ,  HERBST HOLGER ,  NESTLER GERHARD ,  SCHROEDER JUERGEN ,  BECKMANN STEFAN

    IPC: C07C67/08 ,  C07C67/327 ,  C07C67/60 ,  C07C69/54

    Abstract: In a process for esterifying (meth)acrylic acid with an alkanol in the presence of an esterification catalyst, in which unconverted starting compounds and (meth)acrylic ester to be formed are separated off by distillation and an oxyester-containing bottom product is formed, the bottom product is first separated off and then the oxyesters contained in it are cleaved in the presence of a relatively long-chain alkylbenzenesulfonic acid at elevated temperatures.

    Production of (meth)acrylic acid, useful for the production of (meth)acrylic acid esters or super absorbents, comprises use of an absorption agent and stripping gas
    7.
    发明专利
    Production of (meth)acrylic acid, useful for the production of (meth)acrylic acid esters or super absorbents, comprises use of an absorption agent and stripping gas 未知

    公开(公告)号：DE10251138A1

    公开(公告)日：2003-11-27

    申请号：DE10251138

    申请日：2002-10-31

    Applicant: BASF AG

    Inventor： DIEHL VOLKER ,  BECKMANN STEFAN ,  WELCH DARRYL

    IPC: C07C51/44 ,  C07C51/47 ,  C07C67/08 ,  C07C67/54 ,  C07C69/54 ,  C07C57/05 ,  C07C67/03

    Abstract: A process for the production of (meth)acrylic acid comprises use of 15-20 kg of absorption agent per m3 of reaction gas mixture; an inlet temperature of the desorption apparatus of 120-140 degrees C; and a quantity of stripping gas greater than 4 m3 per m3 of reaction gas mixture. A process for the production of (meth)acrylic acid comprises: (a) preparation of a reaction gas mixture by catalytic gas phase partial oxidation of suitable 3-4C precursors; (b) absorption of the reaction mixture from (A) in at least one absorption apparatus with an absorption agent, desorption of the absorption agent in at least one desorption apparatus by treatment with a stripping gas and; (c) subsequent distillation of the absorption agent to yield crude (meth)acrylic acid whereby the absorption apparatus comprises 15-20 kg of absorption agent per m3 of reaction gas mixture; the inlet temperature of the desorption apparatus is 120-140 degrees C; and the quantity of stripping gas is greater than 4 m3 per m3 of reaction gas mixture.

    Method for producing 4,4' dihalogendiphenylsulfone
    9.
    发明专利
    Method for producing 4,4' dihalogendiphenylsulfone 未知

    公开(公告)号：AU8437998A

    公开(公告)日：1999-01-04

    申请号：AU8437998

    申请日：1998-06-10

    Applicant: BASF AG

    Inventor： BECKMANN STEFAN ,  REICHELT HELMUT ,  BECK KARL ,  FRIEDRICH KLAUS ,  GEHRER EUGEN ,  PLESNIVY THOMAS ,  OPPER WALTER

    IPC: B01J21/16 ,  B01J23/28 ,  B01J23/30 ,  B01J23/888 ,  B01J23/889 ,  C07C315/00 ,  C07C317/14

    Abstract: The invention relates to a method for producing 4,4'-dihalogendiphenylsulfone by reacting halogenated benzene with 4-halogenphenylsulfonyl chloride in a liquid phase at high temperature, in the presence of a solid catalyst having acid centers. The method is characterized in that the reaction of 4-halogenphenylsulfonyl chloride with formula (I), in which X is chlorine, bromine or fluorine, with chlorobenzene, bromobenzene, or fluorobenzene, is carried out in the presence of a catalyst which is selected from one of the following groups: K1) catalysts consisting of essentially stratified silicates not having Lewis acids and having proton-saturated negative layer loads, or containing these as a basic component; K2) catalysts consisting of zeolites in the acid H form, or containing these as a basic component; and K3) catalysts consisting of mixed oxides having acidic centres, or containing these as basic components. The mixed oxides consist of a combination of (a) titanium, circonium, hafnium, tin, iron or Cr(III) oxides on the one hand, and (b) vanadium, chromium(VI), molybdenum, wolfram or scandium oxides on the other hand; or the mixed oxides are sulfatized or phosphatized oxides of the group (a), and said mixed oxides are calcined after combination, at temperatures of 450 to 800 DEG C.

    Preparation of (meth)acrylic acid ester, comprises preparing a reaction mixture by catalytic gas phase partial oxidation, absorbing mixture, desorbing the absorbent and esterifying (where water is not reversed into the rectification unit)
    10.
    发明专利
    Preparation of (meth)acrylic acid ester, comprises preparing a reaction mixture by catalytic gas phase partial oxidation, absorbing mixture, desorbing the absorbent and esterifying (where water is not reversed into the rectification unit) 未知

    公开(公告)号：DE102004031207A1

    公开(公告)日：2006-01-19

    申请号：DE102004031207

    申请日：2004-06-28

    Applicant: BASF AG

    Inventor： BECKMANN STEFAN ,  WELCH DARRYL

    IPC: B01D15/08 ,  C07C67/08 ,  C07C67/56 ,  C07C69/54

    Abstract: Preparation of (meth)acrylic acid ester (I), comprises: preparing a reaction mixture (II) by catalytic gas phase partial oxidation, absorbing (II) and desorbing the loaded absorbent, subsequent rectificative purifying to obtain raw (meth)acrylic acid (III) and esterifying (III) with an alcohol (where water is not reversed into the rectification unit). Preparation of (meth)acrylic acid ester (I) comprises: preparing a reaction mixture (II) by catalytic gas phase partial oxidation of C3- or C4- precursors, absorbing (II) in an absorption apparatus with an absorbent, desorbing the loaded absorbent in a desorption apparatus by treating with a stripping gas, subsequent rectificative purifying of the absorbent to obtain raw (meth)acrylic acid (III) (where at least one absorption apparatus is operated with an absorbent quantity of 15-20 kg/m3> of (II); the temperature of the inlet to the desorption apparatus amounts to 120-140[deg]C and the amount of stripping gas in the desorption apparatus is more than 4 m3>/m3> of (II)) and esterifying (III) with an alcohol, where in the esterification step, water is not reversed into the rectification unit III.

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