中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

114 records (took 0.043 seconds)

    METHOD FOR HYDRATING POLY- OR MONOMETHYLOL ALKANALS
    2.
    发明申请
    METHOD FOR HYDRATING POLY- OR MONOMETHYLOL ALKANALS 审中-公开
    PROCESS加氢多晶硅或monomethylolalkanals的

    公开(公告)号：WO0238525A2

    公开(公告)日：2002-05-16

    申请号：PCT/EP0112681

    申请日：2001-11-02

    Applicant: BASF AG ,  DERNBACH MATTHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD ,  WEIGL HAGEN ,  MAAS STEFFEN

    Inventor： DERNBACH MATTHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD ,  WEIGL HAGEN ,  MAAS STEFFEN

    IPC: C07B61/00 ,  C07C29/141 ,  C07C31/20 ,  C07C31/22 ,  C07C31/24 ,  C07C45/78 ,  C07C47/19

    CPC classification number: C07C29/141 ,  C07C31/20 ,  C07C33/26 ,  C07C31/22

    Abstract: The invention relates to a method for catalytically hydrating a poly- or monomethylol alkanal of the general formula (I), wherein R is the same or different and may represent a substituted or unsubstituted aliphatic hydrocarbon with 6 to 22 carbon atoms, an aryl or arylalkyl group with 6 to 22 carbon atoms or a methylol group, in the presence of a copper-containing catalyst. The inventive method is characterized in that the poly- or monomethylol alkanal containing batch to be hydrated has a total content of up to 5 ppm of metal ions of the groups 3 to 14 of the periodic system.

    Abstract translation: 本发明涉及一种用于一聚的催化氢化或monomethylolalkanal通式（I），其中R可以是相同的或不同的，并且是具有1至22个碳原子，具有6〜22的芳基或芳基取代或未取代的脂族烃 碳原子或羟甲基，在含铜催化剂，其特征在于，所述氢化的聚或monomethylolalkanal含有具有基团3的Gwsamtgehalt至5ppm的金属离子的元素周期表第14的存在。

    processo para preparar polieteróis de alcoóis polivalentes.
    5.
    发明专利
    processo para preparar polieteróis de alcoóis polivalentes. 未知

    公开(公告)号：BRPI0311150B1

    公开(公告)日：2015-10-13

    申请号：BR0311150

    申请日：2003-05-21

    Applicant: BASF AG

    Inventor： WARTINI ALEXANDER ,  HACKMANN CLAUS ,  DERNBACH MATTHIAS ,  SIRCH TILMAN

    IPC: C08G65/26

    Abstract: "processo para preparar polieteróis de alcoóis polivalentes, e, uso de um álcool polivalente". a invenção refere-se a um processo para preparar polióis de poliéster de alcoóis polivalentes por meio da mono- ou poliesterificação de pelo menos um ácido carboxílico contendo pelo menos dois grupos ácidos e/ou pelo menos um derivado de um ácido dicarboxílico com alcoóis polivalentes, opcionalmente com a adição de um catalisador, e por meio de separação da água de reação. referido processo é caracterizado pelo fato de que o álcool polivalente usado apresenta um teor de acetal de formaldeído inferior a 500 ppm.

    7.
    发明专利
    未知

    公开(公告)号：AT338740T

    公开(公告)日：2006-09-15

    申请号：AT02801897

    申请日：2002-10-18

    Applicant: BASF AG

    Inventor： KOCH MICHAEL ,  WARTINI ALEXANDER ,  SIRCH TILMAN ,  DERNBACH MATTHIAS

    IPC: C07C29/90 ,  C07C29/88 ,  C07C31/22

    Abstract: A method for removing trialkyl ammonium formate from a methylol alkanes obtained by condensation of formaldehyde with a higher aldehyde. The invention is characterized in that trialkyl ammonium formate is decomposed at a high temperature using catalysts containing at least one metal from groups 8-12 of the classification of elements in the presence of gas containing hydrogen. The method makes it possible to separate trialkyl ammonium formate according to the organic Cannizzaro method and according to the hydrogenation method.

    PROCEDIMIENTO PARA LA OBTENCION DE POLIETEROLES.
    8.
    发明专利
    PROCEDIMIENTO PARA LA OBTENCION DE POLIETEROLES. 未知

    公开(公告)号：ES2253699T3

    公开(公告)日：2006-06-01

    申请号：ES03755042

    申请日：2003-05-21

    Applicant: BASF AG

    Inventor： WARTINI ALEXANDER ,  DERNBACH MATTHIAS ,  HACKMANN CLAUS ,  SIRCH TILMAN

    IPC: C07C31/22 ,  C07C29/38 ,  C08G65/26 ,  C08G65/28

    Abstract: Procedimiento para la obtención de poliéteroles de alcoholes polivalentes, de la fórmula (I), en la que R1 y R2 significan, independientemente entre sí, hidrógeno, alquilo con 1 a 10 átomos de carbono, hidroxialquilo con 1 a 10 átomos de carbono, carboxilo o alcoxicarbonilo con 1 a 4 átomos de carbono, mediante reacción de un óxido de alquileno con el alcohol polivalente correspondiente en presencia de una base así como, en caso dado, en presencia de un disolvente, caracterizado porque el alcohol polivalente empleado ha sido obtenido mediante reacción de un aldehído de la fórmula (II) con formaldehído y a continuación transformación del grupo aldehído en un grupo hidroxi mediante hidrogenación catalítica y presenta un contenido en formaldehídoacetal por debajo de 500 ppm.

    10.
    发明专利
    未知

    公开(公告)号：DE50301629D1

    公开(公告)日：2005-12-15

    申请号：DE50301629

    申请日：2003-05-21

    Applicant: BASF AG

    Inventor： WARTINI ALEXANDER ,  DERNBACH MATTHIAS ,  TISCHER GERLINDE ,  SIRCH TILMAN

    IPC: C07C29/80 ,  C08G6/00 ,  C08G18/42 ,  C08G63/12 ,  C08G63/78

    Abstract: The invention provides a process for preparing polyester polyols of polyhydric alcohols by mono- or polyesterification of at least one carboxylic acid having at least two acid groups and/or at least one derivative of a dicarboxylic acid with polyhydric alcohols, optionally with the addition of a catalyst, while removing the water of reaction, wherein the polyhydric alcohol used has a formaldehyde acetal content of less than 500 ppm.

Patent Agency Ranking