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    181.
    发明专利
    未知

    公开(公告)号：DE602004000673D1

    公开(公告)日：2006-05-24

    申请号：DE602004000673

    申请日：2004-07-06

    Applicant: SUMITOMO CHEMICAL CO

    Inventor： YOKOTA MASAHI ,  KOBAYASHI YOSHINORI ,  KITAMURA MASARU

    IPC: C07D201/04 ,  C07D201/10

    Abstract: epsilon -Caprolactam is produced by the method comprising the step of introducing a gas comprising cyclohexanone oxime into a layer of solid catalyst particles through a plurality of holes of a gas diffusion plate so that the solid catalyst particles are brought into contact with the gas, while fluidizing the catalyst layer, characterized in that the holes have an average diameter of about 3 mm or smaller. In accordance with the production method, epsilon -caprolactam can be produced from a raw material gas comprising cyclohexanone oxime with a high conversion of cyclohexanone oxime and a high selectivity to epsilon -caprolactam.

    COMPOSICION MEJORADA DE RECUBRIMIENTO CON BAJO VOC RESISTENTE AL RAYADO Y AL DESGASTE USUAL.
    182.
    发明专利
    COMPOSICION MEJORADA DE RECUBRIMIENTO CON BAJO VOC RESISTENTE AL RAYADO Y AL DESGASTE USUAL. 未知

    公开(公告)号：MXPA05009916A

    公开(公告)日：2005-11-04

    申请号：MXPA05009916

    申请日：2004-03-18

    Applicant: DU PONT

    Inventor： SCOTT W LOPER

    IPC: C09D143/00 ,  C07D201/10 ,  C09D143/04

    Abstract: Una composicion de recubrimiento curable, y el proceso de aplicacion de la misma, particularmente util como recubrimiento transparente aplicado sobre un recubrimiento base pigmentado que tiene un VOC significativamente menor y resistencia mejorada al rayado, al ataque quimico, a al desgate usual, se proporciona de acuerdo con la presente invencion, la cual contiene un material oligomerico o polimerico silano funcional que comprende grupos carbamato y un compuesto de reticulacion que comprende grupos que son reactivos con los grupos carbamato.

    183.
    发明专利
    未知

    公开(公告)号：DE69907122D1

    公开(公告)日：2003-05-28

    申请号：DE69907122

    申请日：1999-12-22

    Applicant: PRAXAIR TECHNOLOGY INC

    Inventor： ECHEGARAY DIEGO FERNANDEZ ,  VELLOSO ANTONIO AUGUSTO M ,  WAGNER MATTHEW LINCOLN

    IPC: C07D201/06 ,  C07D201/10

    Abstract: A method for production of caprolactam. The method involves: (a) reacting air with ammonia gas in an ammonia conversion zone to produce nitric oxide; (b) oxidizing at least a portion of the nitric oxide to nitrogen dioxide to produce an NOx-rich process gas stream; (c) reactively absorbing the NOx-rich gas stream with phosphoric acid containing solution in an absorption zone to form nitrate ions; (d) contacting the nitrate ions with air in a degassing zone to produce a nitrate-rich aqueous process stream; (e) reducing the nitrate-rich aqueous stream with hydrogen in the presence of phosphoric acid to produce hydroxylammonium phosphate; (f) oximating the hydroxylammonium phosphate with cyclohexanone to produce cyclohexanone oxime; and (g) converting the cyclohexanone oxime to caprolactam. According to the invention, supplemental oxygen is added downstream of the ammonia conversion zone to increase the quantity and rate of formation of nitrogen dioxide in the NOx-rich process gas stream.

    METHOD FOR PRODUCTION OF HYDROXYLAMINE SULFATE IN THE CONVENTIONAL PROCESS FOR THE SYNTHESIS OF CAPROLACTAM
    184.
    发明专利
    METHOD FOR PRODUCTION OF HYDROXYLAMINE SULFATE IN THE CONVENTIONAL PROCESS FOR THE SYNTHESIS OF CAPROLACTAM 未知

    公开(公告)号：IL133663D0

    公开(公告)日：2001-04-30

    申请号：IL13366399

    申请日：1999-12-22

    Applicant: PRAXAIR TECHNOLOGY INC

    IPC: C07D201/06 ,  C07D201/10 ,  C07C

    Abstract: An improvement in the conventional process for the production of caprolactam. The process involves: (a) reacting air with ammonia gas in an ammonia conversion zone to produce nitric oxide; (b) oxidizing a portion of the nitric oxide to nitrogen dioxide to produce an NOx-rich process gas stream; (c) reacting the NOx-rich stream with ammonium carbonate in a nitriting zone to produce ammonium nitrite; (d) reducing the ammonium nitrite to hydroxylamine diammonium sulfate; (e) hydrolyzing the hydroxylamine diammonium sulfate to hydroxylamine sulfate; (f) oximating the hydroxylamine sulfate with cyclohexanone to produce cyclohexanone oxime; and (g) converting the cyclohexanone oxime to caprolactam. The process is improved by adding supplemental oxygen downstream of the ammonia conversion zone to increase the quantity and rate of formation of nitrogen dioxide in the NOx-rich process gas stream.

    185.
    发明专利
    未知

    公开(公告)号：BR9905939A

    公开(公告)日：2000-08-29

    申请号：BR9905939

    申请日：1999-12-22

    Applicant: PRAXAIR TECHNOLOGY INC

    Inventor： ECHEGARAY DIEGO FERNANDEZ ,  VELLOSO ANTONIO AUGUSTO M ,  WAGNER MATTEW LINCOLN

    IPC: C07D201/06 ,  C07D201/10

    Abstract: An improvement in the conventional process for the production of caprolactam. The process involves: (a) reacting air with ammonia gas in an ammonia conversion zone to produce nitric oxide; (b) oxidizing a portion of the nitric oxide to nitrogen dioxide to produce an NOx-rich process gas stream; (c) reacting the NOx-rich stream with ammonium carbonate in a nitriting zone to produce ammonium nitrite; (d) reducing the ammonium nitrite to hydroxylamine diammonium sulfate; (e) hydrolyzing the hydroxylamine diammonium sulfate to hydroxylamine sulfate; (f) oximating the hydroxylamine sulfate with cyclohexanone to produce cyclohexanone oxime; and (g) converting the cyclohexanone oxime to caprolactam. The process is improved by adding supplemental oxygen downstream of the ammonia conversion zone to increase the quantity and rate of formation of nitrogen dioxide in the NOx-rich process gas stream.

    Dihydropyridine PAF antagonists
    187.
    发明专利
    Dihydropyridine PAF antagonists 未知

    公开(公告)号：PH26046A

    公开(公告)日：1992-01-29

    申请号：PH37617

    申请日：1988-09-30

    Applicant: PFIZER LTD

    Inventor： COOPER KELVIN ,  FRAY MICHAEL JOHNATHAN ,  RICHARDSON KENNETH ,  STEELE JOHN

    IPC: A61K31/4406 ,  C07D233/60 ,  A61K31/4418 ,  A61K31/4427 ,  A61K31/455 ,  A61K31/496 ,  A61K31/52 ,  A61K31/522 ,  A61P9/12 ,  A61P29/00 ,  A61P37/08 ,  C07D211/82 ,  C07D211/90 ,  C07D213/50 ,  C07D235/06 ,  C07D249/08 ,  C07D263/32 ,  C07D277/22 ,  C07D401/10 ,  C07D401/14 ,  C07D413/14 ,  C07D417/14 ,  C07D471/04 ,  C07D473/00 ,  C07D473/30 ,  C07D513/04 ,  C07D201/10

    Abstract: Platelet activating factor antagonists of formula (I): wherein R is phenyl or phenyl substituted by one or more substituents selected from nitro, halo, C1-C4 alkyl, C1-C4 alkoxy, aryl(C1-C4)alkoxy, fluoro(C1-C4)alkoxy, C1-C4 alkylthio, C1-C4 alkylsulphonyl, hydroxy, trifluoromethyl and cyano, or is phenyl fused to a dioxole ring; R and R are each independently H or C1-C6 alkyl, or R and R together complete a pyrrolidinyl, piperidino, morpholino, piperazinyl, N-(C1-C4 alkyl)piperazinyl or N-(C2-C4 alkanoyl-piperazinyl group; or R is H or C1-C4 alkyl and R is CN, C3-C7 cycloalkyl, aryl, heteroaryl or a C1-C4 alkyl group substituted by one or more substituents selected from C3-C7 cycloalkyl, C1-C4 alkoxycarbonyl, aryl or heteroaryl; Z is selected from C1-C6 alkoxy, aryl(C1-C4)alkoxy, hydroxy, and -NR R wherein each of R and R is independently H or C1-C6 alkyl, or R and R together complete a pyrrolidinyl, piperidino, morpholino, piperazinyl or N-(C1-C4 alkyl)piperazinyl group; Y is 1,4 phenylene or pyridine-2,5-diyl, and X is a 5 or 6 membered aromatic heterocyclic group containing one or more nitrogen atoms in its ring; which ring may be fused to a benzene ring or to a further 5- or 6-membered aromatic heterocyclic ring containing one or more nitrogen atoms, at least one of said heterocyclic rings optionally also containing an oxygen or sulphur atom, and being optionally substituted with one or more substituents selected from C1-C4 alkyl, C1-C4 alkoxy, halo, CF3 and CN; and their pharmaceutically acceptable salts.

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