摘要:
A process for the preparation of pigment preparations of the anthanthrone series, which comprises subjecting anthanthrone crude pigments to aqueous pearl milling in the presence of dispersants of the formulaeQ.sub.1 -[A.sub.1 -X].sub.n (I)and/or[Q.sub.2 -A.sub.2 ].sub.z -Y (II)in which in formula (I) Q.sub.1 is the radical of an anthanthrone, azo, isoindolinone, diketopyrrolopyrrole or perinone compound, A.sub.1 is a direct bond or --O--, --S--, --NR.sub.3, --CO--, --SO.sub.2 --, --CR.sub.4 R.sub.5 -- or arylene, X is a group ##STR1## or a heterocyclic radical having at least one nitrogen atom, and R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are hydrogen atoms or saturated or unsaturated alkyl groups and n is 1 to 4, and in formula (II) Q.sub.2 is a radical of the formula ##STR2## in which R.sub.1 is hydrogen, halogen, alkyl, alkoxy or cyano, or, in the case that m.sub.1 >1, R.sub.1 can also be a combination of these substituents, R.sub.2 is hydrogen, halogen, an alkyl, alkoxy or cyano or, in the case that m.sub.2 >1, R.sub.2 can also be a combination of these substituents, m.sub.1 and m.sub.2 are 1 to 4, A.sub.2 is --(CH.sub.2).sub.p --, CR.sub.8 R.sub.9 --, arylene, --O--, --NR.sub.10 --, --CO-- or --SO.sub.2 --, in which p is from 1 to 6, R.sub.8, R.sub.9 and R.sub.10 are hydrogen or alkyl, Y is dimethylamino or diethylamino or an imidazole or piperazine radical and z is 1 or 2, and subjecting the suspensions of the prepigment preparations obtained to a heat treatment at temperatures from 20.degree. to 200.degree. C.
摘要:
Pigment preparations consisting of organic pigments and basic additives of the general formula I(Q-A).sub.x Y (I)in which Q is a radical of the formula II ##STR1## in which R.sup.1 is halogen, an alkyl, alkoxy or cyano group, R.sup.2 is halogen, m and n are integers from 0 to 4, A is a chemical bond or a divalent group from the series consisting of --(CH.sub.2).sub.p --, --CR.sup.3 R.sup.4 --, arylene, --S--, --O-- and --NR.sup.5 --, in which p is an integer from 1 to 12, R.sup.3 is hydrogen or alkyl, R.sup.4 is alkyl and R.sup.5 is hydrogen or alkyl, Y is a tertiary nitrogen atom or a group ##STR2## in which R.sup.6, R.sup.7 and R.sup.8 are alkyl or alkenyl or a cycloaliphatic or araliphatic radical or an alkyleneheteroaryl radical, or Y is a saturated or unsaturated heterocyclic radical in which at least one tertiary nitrogen atom is included in the meanings mentioned for Y and x is a number from 1 to 6.
摘要:
Pigment preparations consisting essentially of (a) at least one pigment based on perylene-3,4,9,10-tetracarboxylic dianhydride or on corresponding monoimides or diimides of tetracarboxylic acid monoanhydride, or a halogenation product thereof, (b) at least one pigment dispergent based on perylene-3,4,9,10-monoimide substituted on one or both imide nitrogen atoms by alkylene or arylene sulphonic or carboxylic acid groups or on corresponding diimides of tetracarboxylic acid monoanhydride, or a halogenation product thereof. The dispergents used appreciably enhance the key properties of perylene pigments, such as dispersibility, coloring power, stability to flocculation, transparency, rheological behavior and surface properties of the application medium. These new preparations are suitable for the pigmentation of high-quality lacquers and synthetic resins.
摘要:
The present invention provides a process for preparing transparent perylimide pigments of the formula (I) in which u is a number from 0 to 8 and, if u>0, E is a chlorine or bromine atom and, where u>1, may be a combination thereof, which comprises wet-grinding a crude perylimide pigment in a liquid medium in a stirred ballmill operated at a power density of from 1.0 kW per liter of milling space and at a stirrer tip speed of more than 12 m/s under the action of grinding media having a diameter of less than or equal to 0.9 mm, and isolating the resulting pigment.
摘要翻译:本发明提供制备式(I)的透明苝酰亚胺颜料的方法,其中0至8的数,如果u> 0,E是氯或溴原子,并且其中u> 1可以是 其组合包括在搅拌球磨机中在液体介质中湿法研磨粗己二酰亚胺颜料,该搅拌球磨机以每升研磨空间的功率密度为1.0kW,搅拌器末端速度大于12m / s 的直径小于或等于0.9mm的研磨介质,并分离所得颜料。
摘要:
Novel perylene compounds based on perylene-3,4,9,10-tetracarboxylic acid monoanhydride monoimides which are substituted by alkylene- or arylenesulfonic acid groups on one or both imide nitrogen atoms, or on corresponding tetracarboxylic acid diimides, or on a halogenation product thereof, have properties which render them accessible, in addition to their use as dispersing agent for pigments of the same class of compound or other categories, also for direct use as pigments and fluorescent dyestuffs as well as polymer-soluble dyestuffs.
摘要:
In order to improve the application properties, in particular the rheological and coloristic properties, and the gloss behavior and the flocculation stability of dioxazine pigments in acrylic varnishes, the surface of the base pigment is modified by coating with sulfo-containing dioxazine derivatives, which in most cases have been converted into the corresponding metal salts, into specific salt-like derivatives derived therefrom or, if desired, into cyclic ammonium compounds. Such a modification of the base pigment, i.e. production of the pigment preparations according to the invention by adding the specific dispersant, can take place at the stage of the pigment synthesis, during a comminution process of the coarse-crystalline crude pigment, by addition to the already finely divided crude pigment in the course of a subsequent solvent finish treatment or by mechanical mixing of the two essential components, pigment and dispersant.
摘要:
Pigment preparation essentially comprisinga) at least one pigment from the class of azo, anthrapyrimidine, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perylene, phthalocyanine, pyranthrone or thioindigo pigments or a mixture of pigments belonging to various classes, andb) at least one dispersant of the formula (I) ##STR1## in which P, independently of the pigments mentioned in a), is a radical of an anthanthrone azo, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, indanthrone, perylene, phthalocyanine or thioindigo pigment,R.sup.1 and R.sup.2, independently of one another, are hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or nitro, andn is a number from 1 to 4,and their use for pigmenting of high-molecular-weight materials in the form of plastic compositions, melts, spinning solutions, varnishes, in particular of polyurethane-based aqueous varnishes or low-solvent high-solid acrylic varnishes, coating compositions and printing inks, in particular based on nitrocellulose.
摘要:
The invention relates to a method for producing vattable organic pigments. The invention is characterized in that an agueous or an aqueous-organic suspension of a coarse crystalline raw mineral is vatted and re-oxidised, and the pigment suspension is ground to a diameter equal to or less than 0.9 mm during vatting and/or during oxidation by means of an agitator ball mill, which is operated at a power density of more than 1.0 KW per litre per grinding chamber and at an agitator peripheral speed of more than 12 m/s, using grinding bodies.
摘要:
The invention relates to a method for producing vattable organic pigments. The invention is characterised in that an aqueous or an aqueous-organic suspension of a coarse crystalline raw mineral is vatted and re-oxidised, and the pigment suspension is ground to a diameter equal to or less than 0.9 mm during vatting and/or during oxidation by means of an agitator ball mill, which is operated at a power density of more than 1.0 KW per litre per grinding chamber and at an agitator peripheral speed of more than 12 m/s, using grinding bodies.
摘要:
The present invention provides a process for preparing transparent perylimide pigments of the formula (I): in which u is a number from 0 to 8 and, if u>0, E is a chlorine or bromine atom and, where u>1, may be a combination thereof, which comprises wet-grinding a crude perylimide pigment in a liquid medium in a stirred ballmill operated at a power density of from 1.0 kW per liter of milling space and at a stirrer tip speed of more than 12 m/s under the action of grinding media having a diameter of less than or equal to 0.9 mm, and isolating the resulting pigment.