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    1.
    发明专利
    未知

    公开(公告)号：DE59711330D1

    公开(公告)日：2004-04-01

    申请号：DE59711330

    申请日：1997-08-18

    Applicant: BASF AG

    Inventor： HIEBER DR ,  EBEL DR ,  SCHROEDER DR ,  DOCKNER DR ,  GROENING DR ,  RUGE DR

    IPC: C07D233/58 ,  B01J21/12 ,  B01J27/16 ,  C07D233/54 ,  C07D233/68 ,  C07D233/90 ,  C07D233/91 ,  C07D233/92 ,  C07D235/06 ,  C07D235/08

    Abstract: Preparation of substituted imidazole derivatives of formula (I) comprises reaction of an imidazole of formula (II) with a compound of formula R4OR5 (III) at 200-550 degrees C in the presence of a catalyst containing oxides or phosphates of one or metals of the 2nd, 3rd and 4th main periods and the 4th transition period, optionally in the presence of phosphoric acid or phosphate esters. R1-R3 = H, halo, NO2, CN or 1-20C hydrocarbon (optionally mono- or poly-halogenated); or R1+R2 complete a 3-20C cyclic hydrocarbon optionally containing 1-3 heteroatoms from N, O or S (optionally mono- to poly-substituted by halo or 1-8C alkyl); R4 = 1-20C hydrocarbon (optionally mono- or poly-halogenated); R5 = R4 or H.

    2.
    发明专利
    未知

    公开(公告)号：DE59309939D1

    公开(公告)日：2000-03-02

    申请号：DE59309939

    申请日：1993-11-26

    Applicant: BASF AG

    Inventor： SCHROEDER DR ,  SIEGEL DR ,  LOKAI MATTHIAS

    IPC: A61K6/083 ,  A61K6/00 ,  C07F9/32 ,  C07F9/40 ,  C07F9/53 ,  C07F9/6571 ,  C07F9/6574 ,  C08F2/50 ,  C09D4/00 ,  C09D5/34 ,  C09D11/101 ,  C09J4/00 ,  G03F7/028 ,  G03F7/029

    Abstract: Arene bisphosphine oxides of the general formula in which the radicals R to R independently of one another stand for a hydrogen atom or a C1-C6-alkyl or alkoxy group, or a C5-C10-aryl group, a C5-C12-aryloxy group or a C7-C14-arylalkoxy group, R and R independently of one another stand for a C1-C6-alkyl group, a C5-C10-cycloalkyl group or a C5-C12 aryl group, which can also contain one or two nitrogen or sulphur atoms in the ring system or can carry one or two halogen atoms, C1-C6-alkyl groups or C1-C6-alkoxy groups as substituents on the ring system or can stand for a C1-C6-alkoxy group, a C3-C8-alkoxyalkoxy group, a C5-C12-aryloxy group or C7-C14-arylalkoxy group or R and R together form a bridge of 2 to 10 carbon atoms, it also being possible for some of the carbon atoms to be a constituent of an aromatic ring.

    4.
    发明专利
    未知

    公开(公告)号：DE59907520D1

    公开(公告)日：2003-12-04

    申请号：DE59907520

    申请日：1999-08-20

    Applicant: BASF AG

    Inventor： MACHHAMMER DR ,  HAUPT DR ,  SCHLIEPHAKE DR ,  SCHROEDER DR

    IPC: C07C51/44 ,  C07C57/07

    Abstract: A process for the continuous recovery of (meth)acrylic acid from a liquid starting mixture containing (meth)acrylic acid, a high-boiling organic solvent and low boilers, medium boilers and high boilers is proposed, the mixture being separated into a first part-stream (a), which, in addition to (meth)acrylic acid, contains the low boilers and a part each of the medium boilers and high boilers, and a second part-stream (b), which contains the predominant part of the (meth)acrylic acid and is completely or virtually completely free of low boilers, and the (meth)acrylic acid being recovered from the part-stream (b).

    5.
    发明专利
    未知

    公开(公告)号：DE50001029D1

    公开(公告)日：2003-02-13

    申请号：DE50001029

    申请日：2000-05-18

    Applicant: BASF AG

    Inventor： DAMS DR ,  AICHINGER DR ,  HERBST DR ,  NESTLER DR ,  SCHROEDER DR

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

    Abstract: The cracking residues of the oxyester-containing sump product which has been obtained after distilling off unreacted materia and the ester in the catalysed esterification of (meth)acrylic acid with an alcohol are combined with the distillation residue a then hydrolysed in the presence of water and acids or bases. Catalysed esterification of (meth)acrylic acid with an alcohol involves distilling off the unreacted materials and the este leave an oxyester-containing sump product which is either: (a) optionally treated with (meth)acrylic acid or oligomeric acid and then cracked using an acid catalyst other than a (meth)acrylic acid or oligomer, with the cracked product removed to leave a cracking residue; or (b) distilled to remove the oxyester and leave a distillation residue, with the oxyester then being optionally treated and cracked as per (a) above. The novel feature is that the cracking residue from (a) or (b) is hydrolysed together with the distillation residue in the presence of water and acids or bases.

    6.
    发明专利
    未知

    公开(公告)号：DE59604938D1

    公开(公告)日：2000-05-18

    申请号：DE59604938

    申请日：1996-07-16

    Applicant: BASF AG

    Inventor： SCHROEDER DR ,  REICH DR ,  BECK DR ,  FISCHER DR ,  WEISS DR

    IPC: C07C45/63 ,  C07C49/82 ,  C07C225/16 ,  C07C323/22 ,  C08F2/48 ,  C08F2/50 ,  C08F299/02 ,  C09D4/00 ,  C09D4/02 ,  G03F7/039

    Abstract: Prodn. of radiation-hardenable acrylate compsns. comprises: (i) the addn. of a cpd. (A) contg. acrylic gps. to a non-radically copolymerisable benzophenone deriv. contg. prim. or sec. amine gp(s), or OH gp. or mercapto gp.. Also claimed are: (1) radiation hardened materials contg. radiation hardenable acrylate compsns.; (2) benzophenone derivs. of formula RCOR (I) as novel cpds.; and (3) prepn. of the novel cpds. (I). R = phenyl or R ; R = a gp. of formula (II); and R -R = H, 1-4C alkyl or 1-4C alkoxy, with 1-3 of gps. R -R being a 1-30C organic gp. (X) with a prim. or sec. amine gp., OH gp. or mercapto gp..

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