POLIALQUILEN GLICOLES DE ALTA PUREZA Y EL METODO PARA SU PRODUCCION.

    公开(公告)号:MXPA05012928A

    公开(公告)日:2006-02-28

    申请号:MXPA05012928

    申请日:2004-06-02

    Applicant: BASF AG

    Abstract: La invencion se refiere a un metodo para purificar polialquilen glicoles obtenidos por adicion de oxido de alquileno a alquilen glicol, mediante el cual despues de la adicion, el polialquilen glicol se trata a un valor de pH de >7 con agente blanqueador del grupo que consiste en peroxido, peracidos, percarbonatos, perboratos, peroxido sulfatos u oxigeno, opcionalmente utilizando un activador de la blancura. El metodo es particularmente util para la produccion de polietilen glicol con pesos moleculares que abarcan desde 196 a 203g/mol, el cual cumple con los requisitos de las farmacopeas.

    FUNGICIDAL GUANIDINES
    50.
    发明专利

    公开(公告)号:AU625671B2

    公开(公告)日:1992-07-16

    申请号:AU5869790

    申请日:1990-07-05

    Applicant: BASF AG

    Abstract: Guanidines I (* CHEMICAL STRUCTURE *) (I) (A=C5-C12-cycloalkyl which may bear up to three further substituents; benzyl substituted in the para-position; R1, R2, R3=H, C1-C4-alkyl; R4=C5-C18-alkyl which may be interrupted by oxygen, C5-C18-alkenyl, C4-C18-alkynyl or phenyl-C1-C6-alkyl, and these groups may bear up to three further substituents and the phenyl moiety of the phenylalkyl may additionally bear a phenoxy group or up to three C2-C4-alkenyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C6-alkyl or haloalkyl groups, C5-C6-cycloalkyl-C1-C8-alkyl, where the ring may bear up to three further substituents; A=benzyl and R4=C3-C4-alkyl which may be interrupted by oxygen, or C4-alkenyl, both of which may bear up to three further substituents; R3+R4=C5-C6-heterocycle which may bear up to three further substituents and may be interrupted by oxygen) and the salts I.HX and the metal complexes of I. The compounds I are suitable as fungicides.

Patent Agency Ranking