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    21.
    发明专利
    未知

    公开(公告)号：BR7206785D0

    公开(公告)日：1973-07-26

    申请号：BR678572

    申请日：1972-09-29

    Applicant: HOECHST AG

    Inventor： SPIETSCHKA E ,  KIRSCH A ,  FUCHS O

    IPC: C09B67/20 ,  C09B48/00 ,  C09B67/22 ,  C09B67/00 ,  C08J1/08

    Abstract: Quinacridone mixtures consisting of 85 to 99.5 percent by weight of one or several linear trans-quinacridones of the general formula WHEREIN R1 and R2 are identical or different and represent a hydrogen or halogen atom, an alkyl or alkoxy group having each 1 to 4 carbon atoms, an aryloxy, aryl, carbonamide or N-alkyl carbonamide group or which represent together the radical of an aromatic or heterocyclic ring, and 0.5 to 15 percent by weight of one or several linear trans-quinacridones of the general formula WHEREIN Y represents a straight-chained or branched alkyl or alkoxy radical having 6 to 18 carbon atoms, m and n are integers of from 0 to 1 and the sum of n and m being 1 or 2 and R1 and R2 having the meanings given above. These mixtures are obtained by mixing with one another starting compound or final products substituted accordingly during the process of preparation or formation and processing in the manner usual for quinacridones. As compared to the single components the mixture thereof is more transparent and has a better color intensity, a better dispersability and fluidity of the lacquers colored with them and frequently more brilliant shades.

    23.
    发明专利
    未知

    公开(公告)号：DK141054C

    公开(公告)日：1980-06-23

    申请号：DK196075

    申请日：1975-05-05

    Applicant: HOECHST AG

    Inventor： SCHIESSLER S ,  SPIETSCHKA E ,  ELINKMANN H-G

    IPC: C09B67/12

    Abstract: Highly pure alpha -copper phthalocyanine is obtained when a product regenerated from alpha -copper phthalocyanine sulfate by hydrolysis with water is aftertreated in an aqueous medium containing a polar organic non-aromatic compound which is water-soluble or liquid. The aftertreated product has an especially high tinctorial strength, is very easily dispersible and has a very pure reddish-blue shade.

    27.
    发明专利
    未知

    公开(公告)号：BR7505213A

    公开(公告)日：1976-08-03

    申请号：BR7505213

    申请日：1975-08-15

    Applicant: HOECHST AG

    Inventor： ISCHE F ,  SPIETSCHKA E

    IPC: C09B47/10 ,  C09B67/16 ,  C09B67/54 ,  C09B47/04

    Abstract: Polyhalo copper phthalocyanines are purified in concentrated sulfuric acid under addition of peroxo compounds including addition compounds of hydrogen peroxide. The products are useful as pigments having very pure green shades and good fastness properties.

    29.
    发明专利
    未知

    公开(公告)号：DK371175A

    公开(公告)日：1976-02-18

    申请号：DK371175

    申请日：1975-08-15

    Applicant: HOECHST AG

    Inventor： ISCHE F ,  SPIETSCHKA E

    IPC: C09B47/06 ,  C09B47/10 ,  C09B

    Abstract: Polyhalo copper phthalocyanines are obtained by reacting a di- to tetrahalo phthalic acid or a derivative thereof, if necessary urea, a copper salt, a titanium tetrahalide and a compound capable of forming an addition compound with said titanium tetrahalide. The purification of the so-obtained products is much easier since lower amounts of titanium compounds can be used. The products are useful as pigments.

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