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    MIXTURES OF OPTICAL BRIGHTENERS
    31.
    发明专利
    MIXTURES OF OPTICAL BRIGHTENERS 未知

    公开(公告)号：DE3262075D1

    公开(公告)日：1985-03-14

    申请号：DE3262075

    申请日：1982-02-10

    Applicant: HOECHST AG

    Inventor： MARTINI THOMAS DR ,  FRISCHKORN HANS DR ,  SCHINZEL ERICH DR ,  PROBST HEINZ

    IPC: C09B67/22 ,  C09K11/06 ,  D06L3/12 ,  D06L4/65

    Abstract: Mixtures of optical brighteners composed of (a) 1 to 99% by weight of one or more compounds of the formula (1) (1) wherein R1, R2, R3, R4, R5 and R6 can be identical or different and denote hydrogen, chlorine, C1-C4 carbalkoxy, C1-C4-alkyl or C1-C4-alkoxy and (b) 99 to 1% by weight of one or more compounds of the formulae (2) (3) (4) (5) in which n denotes 0 or 1, R7 and R8 denote identical or different radicals from the group comprising hydrogen, fluorine, chlorine, phenyl, trifluoromethyl, C1-C4-alkyl, alkoxy, cyano, carboxyl, carboalkoxy, carboxamide or alkyl sulfonates, and two adjacent radicals R7 and R8 together can also represent a benzene ring, a lower alkylene group or a 1,3-dioxapropylene group, and B denotes a cyano group, a carboxylate group or a carboxamide group or a 1,2,4-oxadiazol-3-yl group, a 1,3,5-oxadiazol-2-yl group, a phenyl group or a 1,3,4-oxadiazol-2-yl group.

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