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23 records (took 0.023 seconds)

    12.
    发明专利
    未知

    公开(公告)号：BRPI0721107A2

    公开(公告)日：2014-03-04

    申请号：BRPI0721107

    申请日：2007-12-11

    Applicant: BASF SE

    Inventor： LIPOWSKY GUNTER ,  SCHLIEPHAKE VOLKER ,  RISSEL STEFFEN ,  JAEGER ULRICH ,  HOEFER FRANK ,  HAREMZA SYLKE ,  ZUROWSKI PETER ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C08K5/17 ,  C08F220/00 ,  F28D1/00

    Abstract: Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer with the aid of an indirect heat exchanger comprises introducing the liquid mixture simultaneously into the primary side of the heat exchanger by a liquid heat carrier and secondary side of the heat exchanger, where: the liquid mixture comprising at least one (meth)acrylic monomer contains at least one added active compound other than (meth)acrylic monomers from tertiary amine or salts formed from a tertiary amine and Bronsted acid, and quaternary ammonium compounds. Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer with the aid of an indirect heat exchanger comprises introducing the liquid mixture simultaneously into the primary side of the heat exchanger by a liquid heat carrier and secondary side of the heat exchanger, where: the liquid mixture comprising at least one (meth)acrylic monomer contains at least one added active compound other than (meth)acrylic monomers from tertiary amine or salts formed from a tertiary amine and Bronsted acid, and quaternary ammonium compounds, with proviso that none of the tertiary and quaternary nitrogen atoms in the active compound bears a phenyl group, but at least partly contains an alkyl group.

    Procedimiento para la producción de hidroximetildifeniloxiranos y los correspondentes 1-azolilmetil-1,2-difeniloxiranos
    14.
    发明专利
    Procedimiento para la producción de hidroximetildifeniloxiranos y los correspondentes 1-azolilmetil-1,2-difeniloxiranos 未知

    公开(公告)号：ES2400220T3

    公开(公告)日：2013-04-08

    申请号：ES10703446

    申请日：2010-02-04

    Applicant: BASF SE

    Inventor： NOACK RAINER ,  PALM CLEMENS ,  GROENING CARSTEN ,  LIPOWSKY GUNTER

    IPC: C07D303/08 ,  C07D303/14 ,  C07D405/06

    Abstract: procedimiento para la producción de hidroximetiloxiranos de la fórmula (III): donde R1, R2 representan, independientemente unos de otros, fenilo en el que cada radical fenilo puede tener,independientemente unos de otros, de 1 a 3 sustituyentes, seleccionados entre halógeno, ciano, nitro, C1-C4-alquilohalógeno-C1-C4-alquilo hidroxi, C1-C4-alcoxi, halógeno-C1-C4-alcoxi, mercapto, C1-C4-alquiltio, halógeno-C1-C4-alquiltio, sulfinilo sulfonilo C1-C4-alquilsulfonilo fenilsulfonilo fenilo fenoxi, amino, C1-C4-alquilamino, di-C1-C3-alquilamino, -NHCO-C1-C3-alquilo, -NHCOO-C1-C4-alquilo, -COO-C1-C4-alquilo y -CONH-C1-C4-alquilo, en dondecada sustituyente fenilo, fenoxi y fenilsulfonilo puede tener, independientemente unos de otros, de 1 a 3sustituyentes, seleccionados entre halógeno y C1-C4-alquil; y R5 representa hidrógeno o metilo mediante epóxidación de un 2,3-propenal de la fórmula (V): donde R1 , R2 y R5 son tal y como se han definido anteriormente, para dar un formiloxirano de la fórmula (IV): donde R1, R2 y R5 son tal y como se han definido anteriormente, y reducción del formiloxirano de la fórmula (IV), caracterizado porque la reducción se inicia, mientras la cantidad de compuesto empleado de la fórmula (V) en lamezcla de reacción ascienda aún a por lo menos el 2% molar.

    15.
    发明专利
    未知

    公开(公告)号：DE102008002923A1

    公开(公告)日：2009-01-22

    申请号：DE102008002923

    申请日：2008-07-01

    Applicant: BASF SE

    Inventor： LIPOWSKY GUNTER ,  WULFF-DOERING JOACHIM ,  ZUROWSKI PETER ,  STRASSER JUERGEN

    IPC: C07C67/04 ,  B01D3/00 ,  C07C69/54 ,  C07D295/24

    Abstract: Tertiary alkyl ester production involves reacting methacrylic acid with an olefin in homogeneous phase in presence of an acidic catalyst in a reactor. Resulting reaction mixture is discharged from the reactor. The discharged reaction mixture is separated into a mixture, which contains catalyst and a mixture containing tertiary alkyl ester of methacrylic acid having 4 carbon atoms in alkyl residue. The tertiary alkyl ester of methacrylic acid is removed from the mixture, and a compound, which contains N-oxyl group is added as stabilizer. The olefin has general formula (I). R 1>,R 2>alkyl residue; and R 3>H, alkyl residue, cycloalkyl residue, aryl residue, alkylcycloalkyl residue, which is bonded to the olefinically unsaturated carbon atom via an aliphatic or cycloaliphatic carbon atom, alkylaryl residue, which is bonded to the olefinically unsaturated carbon atom via an aliphatic or aromatic carbon atom, cycloalkylaryl residue, which is bonded to the olefinically unsaturated carbon atom via a cycloaliphatic or aromatic carbon atom or alkylcycloalkylaryl residue, which is bonded to the olefinically unsaturated carbon atom via an aliphatic, cycloaliphatic or aromatic carbon atom. [Image].

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