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    41.
    发明专利
    未知

    公开(公告)号：DE3736864A1

    公开(公告)日：1989-03-30

    申请号：DE3736864

    申请日：1987-10-30

    Applicant: HOECHST AG

    Inventor： SOMMER ANDREAS DR ,  DIETZ ERWIN DR ,  URBAN MANFRED DIPL ING

    IPC: C09B67/08 ,  C09B67/20 ,  C09C3/08 ,  C09D17/00

    Abstract: The invention relates to readily dispersible pigment preparations, which are stable to flocculation, for pigmenting natural and synthetic materials, preferably paints and printing inks, plastics and surface coatings, in particular stoving enamels. The pigment preparations are characterised by a content of compounds of the general formula (I) in which Q , Q and Q each denote -X-A, -OR , -SR , halogen, -NR R or a radical Q which is composed of up to 15 trivalent groups (Ia) in such a way that one group (Ia) is bonded via W to a free valence of the next group (Ia) or to the triazine ring of (I) and the other free valences are bonded to -X-A, -O-R , halogen or -NR R , at least one radical -X-A being present in (I), and A represents an aromatic system having 2 to 6 rings and at least 9 ring atoms or represents a group of 2 to 3 aromatic ring systems which are bonded via O, S, CO, SO2 or C1- C12-alkylene and each of which consists of 1 to 4 rings, A being optionally substituted by C1-C24-alkyl, OR', halogen, NR'R'', COOR', CONR'R'', NR'COR'', CN, CF3 or NO2, and R' and R'' denoting H or C1- C12-alkyl or, together with N, denoting a heterocyclic structure having 5 or 6 ring atoms, X represents NR , O or S, wherein R denotes H, C1-C6-alkyl, -hydroxyalkyl or -alkoxyalkyl or C5-C7-cycloalkyl, R , R and R each represent H, alkyl, alkenyl, cycloalkyl, aralkyl, heteroalkyl, phenyl, optionally substituted by C1-C12-alkyl, halogen, OR , NR R , COOR , CONR R , NR COR , CN, CF3, NO2 or -T(CH2)pNR R , in which R and R denote H or alkyl and R and R denote alkyl, p denotes 1-6 and T denotes a direct bond or O, S, CO, SO, SO2, NR , NR CO, NR SO2, SO2NR or CONR and R denotes H or C1-C12-alkyl, or represents C1-C12-hydroxyalkyl or -polyhydroxyalkyl or alkyl which is interrupted by one or more O atoms and/or NR groups, in which R denotes H or alkyl, and may be substituted by a 5-membered or 6- membered heterocyclic ring, or R has the above-mentioned meaning and R and R , together with N, represent a 5-membered or 6-membered ring of a heterocyclic system having 1 or 2 rings, W is Y -Y-Y , in which Y is alkylene, optionally interrupted by O, S, NH, N(Alkyl), CO, SO, SO2, C5-C7-cycloalkylene, C5-C10-arylene or heteroarylene having 5-7 ring atoms or a mononuclear to trinuclear carbocyclic or heterocyclic ring system having 5 to 14 ring atoms or two of the ring systems which are bonded via a direct bond or O, S, CO, SO or SO2, and Y denotes O, S or NR , in which R denotes alkyl, hydroxyalkyl, alkoxyalkyl or cycloalkyl or, together with N-Y-N, denotes a heterocyclic ring. The dispersants used can be prepared by reacting cyanuric halides with corresponding compounds H-X-A, HOR , HSR , HNR R and/or HWH.

    48.
    发明专利
    未知

    公开(公告)号：ES2093670T3

    公开(公告)日：1997-01-01

    申请号：ES91120839

    申请日：1991-12-04

    Applicant: HOECHST AG

    Inventor： SCHWAB WOLFGANG DR ,  DIETZ ERWIN DR

    IPC: C09B67/20 ,  C08K5/34 ,  C09B48/00 ,  C09B67/22 ,  C09B69/00 ,  C09D7/12 ,  C09D201/00

    Abstract: Pigment preparations whose pigment portion is composed essentially of organic pigments and of pigment additives of the formula I (I) in which P is a radical of an organic pigment and X in the methylene groups of the lactam ring is hydrogen, C1-C4-alkyl, phenyl, hydroxyl, NR1R2 or COOM, m is an integer from 3 to 20 and n can have a value from 0.1 to 4, are suitable for pigmenting high-molecular-weight organic materials in solvent-borne as well as aqueous systems. The pigment preparations have high flocculation stability and good rheological properties.

    49.
    发明专利
    未知

    公开(公告)号：DE59207080D1

    公开(公告)日：1996-10-17

    申请号：DE59207080

    申请日：1992-03-20

    Applicant: HOECHST AG

    Inventor： DIETZ ERWIN DR ,  URBAN MANFRED

    IPC: C09B67/20 ,  C09B19/02 ,  C09B67/00 ,  C09B67/22 ,  C09B67/46

    Abstract: In the conventional dry grinding of C.I. Pigment Violet 23, the environment is greatly polluted by the inevitably produced dusts, the generation of noise and heavy vibrations during the grinding process. According to the invention, it has now been found that this deficiency can be avoided if the base pigment is finely dispersed by aqueous-alcoholic bead grinding in the presence of selected pigment dispersing agents, derived from dioxazine compounds containing basic groups, together with a subsequent solvent finish. As a result of such a combination of the two aforementioned treatment processes, an increase in capacity is possible even without otherwise expensive investments for mechanical measures. The pigment preparations produced in this manner simultaneously result in an improvement of the application properties of the colorant in the coating and especially in nitrocellulose intaglio printing, in particular an improvement of the gloss and decrease in the abrasiveness compared with the trade names known in this field.

    50.
    发明专利
    未知

    公开(公告)号：DE58908176D1

    公开(公告)日：1994-09-15

    申请号：DE58908176

    申请日：1989-09-28

    Applicant: HOECHST AG

    Inventor： DIETZ ERWIN DR ,  KROH ADOLF

    IPC: C09B67/52 ,  C09B48/00 ,  C09B67/10 ,  C09B67/14 ,  C09B67/22 ,  C09D7/00

    Abstract: A process for the manufacture of 2,9-dimethylquinacridone pigments or mixed crystal pigments or mixtures of 2,9-dimethylquinacridone and quinacridones which can be substituted in the outer fused benzene nuclei by halogen, alkyl, alkoxy, H2N-CO-, alkyl-NH-CO- or (alkyl)2N-CO- groups, which are characterised by the shape of their crystalline particles with a mean ratio of length to width of in an amount of 1 to 20% by weight, where in formula (I) Q is a quinacridone radical which is unsubstituted or substituted by halogen, alkyl, alkoxy, H2N-CO-, alkyl-NH-CO- or (alkyl)2N-CO- groups, A is a direct bond or -O-, -S-, -NR -, -CO-, -SO2-, -CR R - or arylene, and Y is an -NR R group or the radical of a five-, six- or seven-membered heterocycle which contains 1 to 3 hetero atoms and which can be substituted by alkyl, alkoxy, hydroxyphenyl, halogen, -CN, carboxyl, CO-NNR', -SO2-NRR', hydroxyalkyl or alkylaminoalkyl, R and R' are hydrogen or alkyl, and R to R are, hydrogen and/or alkyl- or alkylene and n is 1 to 4, the pigments prepared in this way themselves and the use thereof for pigmenting natural or synthetic materials and coating systems.

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