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    METHOD OF PREPARING POLYTETRAHYDROFURAN
    4.
    发明公开
    METHOD OF PREPARING POLYTETRAHYDROFURAN 失效
    用于生产聚四氢呋喃

    公开(公告)号：EP0698050A1

    公开(公告)日：1996-02-28

    申请号：EP94916925.0

    申请日：1994-05-03

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： DOSTALEK, Roman ,  FISCHER, Rolf ,  MUELLER, Ulrich ,  BECKER, Rainer

    IPC分类号： C08G63 ,  C08G65

    CPC分类号： C08G65/20 ,  C08G63/668 ,  C08G65/2657

    摘要： Described is a method of preparing polytetrahydrofuran which is liquid at room temperature or polytetrahydrofuran monoesters of C1 to C20 monocarboxylic acids or polytetrahydrofuran monoethers of monohydric C1 to C20 alcohols with a mean molecular weight of 250 to 10,000 Daltons by cationic polymerization of tetrahydrofuran in the presence of a telogen. The method calls for tetrahydrofuran to be polymerized in the presence of water, 1,4-butanediol and/or polytetrahydrofuran with a mean molecular weight of 200 to 700 Daltons and/or a C1 to C20 monocarboxylic acid and/or a monohydric C1 to C20 alcohol, using a catalytically active amount of a zeolite catalyst with an SiO2/Al2O3 molar ratio of 4:1 to 100:1 and in which the population ratio P of the acid sites on the outer surface of the zeolite to the total number of acid sites in the zeolite is 0.03:1 or greater

    VERFAHREN ZUR HERSTELLUNG EINER TAUTOMEREN FORM (I) VON 2, 4, 6-TRIANILINO-P- (CARBO-2 -ETHYLHEXYL-1 -OXY)-1, 3, 5-TRIAZIN
    5.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINER TAUTOMEREN FORM (I) VON 2, 4, 6-TRIANILINO-P- (CARBO-2 -ETHYLHEXYL-1 -OXY)-1, 3, 5-TRIAZIN 有权
    制造方法互变异构形式的2（I），4，6-三苯胺基对 - （CARBO-2-乙基己基-1-氧基）-1，3-，5-三嗪

    公开(公告)号：EP1483250A1

    公开(公告)日：2004-12-08

    申请号：EP03743330.7

    申请日：2003-02-26

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： GÜMBEL, Helmut ,  KNEUPER, Heinz-Josef ,  BECKER, Rainer ,  BERTLEIN, Gerhard ,  DRÖGEMÜLLER, Michael

    IPC分类号： C07D251/54 ,  A61K7/44

    CPC分类号： C07D251/70

    摘要： The invention relates to a method for producing the tautomeric form (I) of 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxy)-1,3,5-triazine by the crystallisation of a tautomer mixture in the presence of one or more solvents selected from the group consisting of aliphatic alcohols having 2 8 C-atoms made of aliphatic alcohols, aliphatic carboxylic acid alkyl esters having a total of between 3 - 10 C-atoms, aromatic carboxylic acid alkyl esters having a total of between 8 - 12 C-atoms, aliphatic carboxylic acid esters having a total of between 3 9 C atoms, carboxylic acid nitriles having a total of between 2 - 8 C-atoms, dialkylketones having a total of between 3 - 6 C-atoms and aliphatic sulphones having a total of between 3 - 6 C-atoms. The solvent or solvent mixture can additionally contain up to 30 wt. % of a hydrocarbon. (I) acts as a light protecting agent in cosmetic preparations.

    VERFAHREN ZUR HERSTELLUNG VON PHTHALIDEN
    8.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON PHTHALIDEN 失效
    用于生产苯酞

    公开(公告)号：EP0929541B1

    公开(公告)日：2001-06-27

    申请号：EP97909303.6

    申请日：1997-09-22

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： MASSONNE, Klemens ,  BECKER, Rainer ,  NEUHAUSER, Horst ,  ZIMMERMANN, Horst ,  REIF, Wolfgang ,  CRAMERS, Peter ,  NARDIN, Daniel

    IPC分类号： C07D307/88

    CPC分类号： C07D307/88

    摘要： The invention concerns a process for preparing phthalides of general formula (I), in which R?1, R2, R3 and R4¿, independently of one another, designate hydrogen, C¿1?-C4 alkyl or C1-C4 alkoxy, by hydrogenating phthalic acid anhydrides of general formula (II), in which the groups R?1, R2, R3 and R4¿ have the above meanings, with hydrogen in the presence of suspended Raney-type catalysts in a hydrogenating device by mixing a liquid phase containing the catalyst and the phthalic acid anhydride used and the resultant phthalide and a gaseous phase containing the hydrogenating hydrogen using a mixing device which has a mixing output of at least 50 W/l in the liquid phase

    KATALYSATOR UND VERFAHREN ZUR HERSTELLUNG VON POLYTETRAHYDROFURAN
    10.
    发明公开
    KATALYSATOR UND VERFAHREN ZUR HERSTELLUNG VON POLYTETRAHYDROFURAN 有权

    公开(公告)号：EP1047721A1

    公开(公告)日：2000-11-02

    申请号：EP99906134.4

    申请日：1999-01-15

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： ELLER, Karsten ,  RÜTTER, Heinz ,  HESSE, Michael ,  BECKER, Rainer

    IPC分类号： C08G65/20 ,  C08G65/10 ,  B01J21/16

    CPC分类号： C08G65/20 ,  C08G61/125 ,  C08G65/2657

    摘要： The invention relates to a method for the production of polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters thereof by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer in acid-activated calcium montmorillonites as a catalyst. The calcium montmorillonite has a BET surface of at least 300 m2/g, an acidity of at least 0.02 mmol/g at pK¿s?

    摘要翻译： 本发明涉及通过在至少一种调聚体和/或共聚单体的存在下在酸活化的钙蒙脱石作为催化剂中聚合四氢呋喃来制备聚四氢呋喃，聚四氢呋喃共聚物或二酯或其单酯的方法。 钙蒙脱石具有至少300m 2 / g的BET表面，在pK时酸度至少为0.02mmol / g。 <-3，孔体积至少为0.40cm 3 / g，孔径范围为30-200。