METHOD OF PRODUCING POLYTETRAHYDROFURANE

    公开(公告)号:SK38397A3

    公开(公告)日:1997-11-05

    申请号:SK38397

    申请日:1995-09-21

    Applicant: BASF AG

    Abstract: A method is disclosed of producing polytetrahydrofurane or polytetrahydrofurane monoesters of C1 - C10 monocarboxylic acids by polymerisation of tetrahydrofurane on a heterogenous catalyst in the presence of one of the following telogens: water, 1,4-butane diol, polytetrahydrofurane with a molecular weight of 200 - 700 Da, a C1 - C10 monocarboxylic acid, or mixtures of these telogens. The catalyst used is a carrier catalyst which contains a catalytically active quantity of an oxygen-containing tungsten or molybdenum compound or mixtures of such compounds on an oxide carrier material and has undergone calcination at temperatures of 500 - 1000 C after the precursors of the oxygen-containing molybdenum and/or tungsten compounds have been deposited on the carrier material precursor.

    METHOD OF OBTAINING POLYTETRAHYDROFURANE

    公开(公告)号:PL319300A1

    公开(公告)日:1997-08-04

    申请号:PL31930095

    申请日:1995-09-21

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/03651 Sec. 371 Date Mar. 10, 1997 Sec. 102(e) Date Mar. 10, 1997 PCT Filed Sep. 21, 1995 PCT Pub. No. WO96/09335 PCT Pub. Date Mar. 28, 1996A process for the preparation of polytetrahydrofuran or polytetrahydrofuran monoesters of C1-C10 monocarboxylic acids by the polymerization of tetrahydrofuran over a heterogeneous catalyst in the presence of one of the telogens water, 1,4-butanediol or polytetrahydrofuran having a molecular weight of from 200 to 700 dalton or a C1-C10 monocarboxylic acid or mixtures of these telogens, wherein a supported catalyst is used as catalyst, which contains a catalytically active amount of an oxygen-containing tungsten or molybdenum compound or mixtures of these compounds on an oxidic support material and which was calcined at temperatures ranging from 500 DEG to 1000 DEG C. following the application of the precursor compounds of said oxygen-containing molybdenum and/or tungsten compounds to the support material precursor.

    PREPARACION DE POLITETRAHIDROFURANO.

    公开(公告)号:MX9702066A

    公开(公告)日:1997-06-28

    申请号:MX9702066

    申请日:1995-09-21

    Applicant: BASF AG

    Abstract: Un procedimiento para la preparacion de politetrahidrofurano o bien de monoésteres de politetrahidrofurano de ácidos monocarboxílicos C1-C10 por medio de la polimerizacion de tetrahidrofurano en un catalizador heterogéneo en presencia de uno de los telogenos agua, 1,4-butandiol o bien politetrahidrofurano que tiene un peso molecular de 200 a 700 daltones o bien un ácido monocarboxílico C1-C10 o bien mezclas de estos telogenos, donde se emplea un catalizador soportado como catalizador, que contiene una cantidad catalíticamente activa de un compuesto de tungsteno o molibdenio que contiene oxígeno o bien mezclas de estos compuestos en un material de soporte oxido y que fue calcinado de la aplicacion de los compuestos precursores de dichos compuestos de molibdenio y/o tungsteno que contienen oxígeno sobre el precursor de material de soporte.

    .gamma.-AZOLYL COMPOUNDS AGENTS CONTAINING THEM FOR REGULATING PLANT GROWTH, AND THE MANUFACTURE THEREOF

    公开(公告)号:CA1137491A

    公开(公告)日:1982-12-14

    申请号:CA336988

    申请日:1979-10-04

    Applicant: BASF AG

    Abstract: A new ?-azolyl compound of the formula I, where R1 and R2 are identical or different and each denotes alkyl of 1 to 8 carbon atoms, furanyl, thienyl, naphthyl, or phenyl, phenyl being unsubstituted or substituted by fluoro, chloro, bromo, nitro, trifluoromethyl, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, or by alkenyl of 1 to 4 carbon atoms, R3 denotes alkyl of 1 to 8 carbon atoms, unsubstituted or chloro-substituted alkenyl of 2 to 5 carbon atoms, alkynyl of 3 to 4 carbon atoms, benzyl which is unsubstituted or substituted by fluoro, chloro, bromo, nitro, trifluoromethyl, or by alkyl or alkoxy of 1 to 4 carbon atoms, R3 further denotes -CO-R4, R4 denoting alkyl of 1 to 5 carbon atoms which 18 unsubstituted or substituted by halogen, alkoxy, oxo (=0) or carboxyalkyl, or R4 denoting phenyl, and R3 further denotes -CO-NH-R5, R5 denoting alkyl of 1 to 4 carbon atoms or phenyl or chlorophenyl, and Az denotes imidazoyl, 1,2,4-triazolyl or 1,2,3triazolyl; processes for their manufacture; agents for influencing plant growth which contain these compounds as active ingredients; and processes for regulating plant growth with these compounds.

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