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    METHOD OF PRODUCING POLYTETRAHYDROFURANE
    12.
    发明专利
    METHOD OF PRODUCING POLYTETRAHYDROFURANE 未知

    公开(公告)号：SK281653B6

    公开(公告)日：2001-06-11

    申请号：SK38397

    申请日：1995-09-21

    Applicant: BASF AG

    Inventor： BECKER RAINER ,  SIGWART CHRISTOPH ,  HESSE MICHAEL ,  FISCHER ROLF ,  ELLER KARSTEN ,  HEILEN GERD ,  PLITZKO KLAUS-DIETER

    IPC: B01J23/24 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28

    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.

    15.
    发明专利
    未知

    公开(公告)号：ES2119477T3

    公开(公告)日：1998-10-01

    申请号：ES95933381

    申请日：1995-09-21

    Applicant: BASF AG

    Inventor： BECKER RAINER ,  SIGWART CHRISTOPH ,  HESSE MICHAEL ,  FISCHER ROLF ,  ELLER KARSTEN ,  HEILEN GERD

    IPC: B01J23/24 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28

    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.

    16.
    发明专利
    未知

    公开(公告)号：AT169648T

    公开(公告)日：1998-08-15

    申请号：AT95933381

    申请日：1995-09-21

    Applicant: BASF AG

    Inventor： BECKER RAINER ,  SIGWART CHRISTOPH ,  HESSE MICHAEL ,  FISCHER ROLF ,  ELLER KARSTEN ,  HEILEN GERD ,  PLITZKO KLAUS-DIETER

    IPC: B01J23/24 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28

    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.

    PREPARATION OF 3-FORMYL-5,6-DIHYDRO-2H-PYRAN
    18.
    发明专利
    PREPARATION OF 3-FORMYL-5,6-DIHYDRO-2H-PYRAN 未知

    公开(公告)号：CA1197858A

    公开(公告)日：1985-12-10

    申请号：CA448534

    申请日：1984-02-29

    Applicant: BASF AG

    Inventor： ECKHARDT HEINZ ,  HALBRITTER KLAUS ,  GOETZ NORBERT ,  HEILEN GERD

    IPC: C07D309/26

    Abstract: 3-Formyl-5,6-dihydro-2H-pyran is prepared by conversion of acrolein in the presence of water, acids and halohydrocarbons of 1 to 6 carbon atoms and 1 to 6 halogen atoms as solvents at from 60 to 150.degree.C. The 3-formyl-5,6-dihydro-2H-pyran obtained by the novel process is a valuable starting material for the preparation of dyes and crop protection agents.

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