MIXTURES OF OPTICAL BRIGHTENERS
    11.
    发明专利

    公开(公告)号:ZA82875B

    公开(公告)日:1982-12-29

    申请号:ZA82875

    申请日:1982-02-11

    Applicant: HOECHST AG

    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.

    MIXTURES OF OPTICAL BRIGHTENERS
    15.
    发明专利

    公开(公告)号:AU8036782A

    公开(公告)日:1982-08-19

    申请号:AU8036782

    申请日:1982-02-11

    Applicant: HOECHST AG

    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.

    19.
    发明专利
    未知

    公开(公告)号:DE2721084A1

    公开(公告)日:1978-11-23

    申请号:DE2721084

    申请日:1977-05-11

    Applicant: HOECHST AG

    Abstract: A mixture of optical brighteners containing 0.05 to 0.95 part by weight of a compound from the benzoxazolyl- or benzothiazolylstilbene series and 0.95 to 0.05 part by weight of a compound of the bis-benzoxazolyl- or bis-benzothiazolylstilbene series or of the benzoxazolyl- or benzothiazolyl-stilbene oxazolo[5,4-6]pyridinyl or oxazolo[2,3-b]pyridinyl series. These mixtures show an enhanced degree of whiteness as compared to the same amount of the single components.

    MIXTURES OF OPITCAL BRIGHTENERS
    20.
    发明专利

    公开(公告)号:PH18697A

    公开(公告)日:1985-09-05

    申请号:PH26858

    申请日:1982-02-11

    Applicant: HOECHST AG

    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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