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:
Novel isoindoline pigments of the formula (I) ##STR1## in which R.sup.1 is --CN and R.sup.2 is CN or a 5- to 7-membered hetero-cycle; R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, phenyl, C.sub.1 -C.sub.4 -alkoxy, halogen or C.sub.2 -C.sub.4 -acylamino; R.sup.4 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen, trifluoromethyl, methoxy, ethoxy or nitro; m is a number from 1 to 4; n is a number from 1 to 3; and R.sup.5 is hydrogen or C.sub.1 -C.sub.4 -alkyl.
摘要:
The conventional condensation of naphthalene-1,4,5,8-tetracarboxylic acid with 1,2-diaminobenzene gives the resulting naphthoylenebisbenzimidazole isomers together in the cis and trans form. It is desirable to shift the isomer ratio of the mixture obtained toward the desirable trans product and to reduce the amount of cis product obtained. It is also desirable to develop a process of preparation which optimizes the yield and improves the waste water situation.This object is achieved according to the invention by subjecting virtually stoichiometric amounts of the starting compounds to a precondensation at 60.degree. to 110.degree. C. in an aqueous medium and then completing the condensation in the aqueous medium in a second stage at 130.degree. to 180.degree. C.
摘要翻译:萘-1,4,5,8-四羧酸与1,2-二氨基苯的常规缩合使得所得的萘并苯并二苯并咪唑异构体以顺式和反式形式一起。 期望将获得的混合物的异构体比例转化为所需的反式产物,并减少所获得的顺式产物的量。 还需要开发一种优化产量并改善废水情况的制备方法。 根据本发明,该目的是通过在水性介质中对实际上化学计量的起始化合物进行60℃至110℃的预缩合,然后在130℃至180℃的第二阶段中在水性介质中完成冷凝 DEG C.
摘要:
The invention relates to biscationic acid amide and acid imide derivatives with an anion of formula (BR.sub.9 R.sub.10 R.sub.11 R.sub.12)--, where R.sub.9 to R.sub.12 are aliphatic, iso- or heterocyclic aromatic residues or aralkyl residues, which may be substituted by C.sub.1 -C.sub.4 -alkyl residues, C.sub.1 -C.sub.4 -alkoxy residues, aryl residues or halogen atoms (e.g. fluorine atoms), and mixtures of these compounds and mixed crystals with mixed anions and/or cations. The invention also relates to a process for preparing them. The new compounds are excellent colorless charge controllers in toners and developers for electrophotographic recording and as charge-enhancers in powders and paints for surface coating, in particular in triboelectrically or electrokinetically sprayed powder paints.
摘要:
The .alpha.-modification of cis-naphthoylenebis(benzimidazole) is unstable in many media and up to date has therefore only been used as a vat dye. However, according to the invention, the .alpha.-modification can readily be used for pigmenting in the mass polyolefins such as polyethylene, polypropylene or analogous copolymers. During pigmenting, the pigment which is prepared in a conventional manner, is stable in that modification and produces strong red dyeings.
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 relates to pigment dispersants of the formula (I) in which Z1 is a radical of the formula (Ia) —[X—Y]q—[X1—Y1]r—[X2—NH]sH (Ia) in which X, X1 and X2 are identical or different and are a branched or unbranched C2-C6-alkylene radical or a C5-C7-cycloalkylene radical which can be substituted by from 1 to 4 C1-C4-alkyl radicals, hydroxyl radicals, and/or by from 1 to 2 further C5-C7-cycloalkyl radicals; Y and Y1 are identical or different and are an NH—, —O— or N(C1-C6-alkyl) group, q is a number from 1 to 6, r and s independently of one another are a number from 0 to 6, but are not simultaneously zero; and Z is defined as Z1, Z2 or Z3, where Z2 is a radical of the formula (Ib) —[X—O]q1—[X1—O]qH (Ib) in which q1 is a number from 0 to 6, and Z3 is hydrogen, hydroxyl, amino or C1-C6-alkyl where the alkyl group can be substituted by from 1 to 4 substituents from the group consisting of Cl, Br, CN, OH, C6H5, carbamoyl, C1-C4-acyl, C1-C4-alkoxy and NR2R3, and to pigment preparations comprising organic base pigments and pigment dispersants, and to prepared pigment formulations prepared from the pigment preparations.
摘要:
Linear, unsubstituted quinacridone pigments of the .beta.-phase can be produced in an environmentally friendly manner bya) cyclizing 2,5-dianilinoterephthalic acid in polyphosphoric acid or a polyphosphoric ester to the quinacridone,b) then hydrolyzing the quinacridone with water at a temperature of at least 40.degree. C., preferably at from 60.degree. to 100.degree. C., to obtain a finely divided quinacridone pigment crude which is predominantly in the .alpha.-phase,c) then optionally wet grinding the finely divided quinacridone pigment crude from b) (pre-pigment), andd) then heating the crude pigment from b) or the pre-pigment from c) to a temperature between 120.degree. and 200.degree. C. in the presence of from 0.1 to 1.5 times the amount of an inorganic base, based on the weight of the crude pigment, in an inert liquid medium (solvent finish).To improve the depth and hue of the color, an oxidative treatment with a peroxodisulfate can be carried out subsequently.
摘要:
Phthalocyanine pigments and phthalocyanine pigment preparations in the .alpha. phase and in the .beta. phase are prepared with phase conservation in an environmentally safe and economical manner bya) first wet milling a phthalocyanine pigment in an inert liquid medium in a stirred ball mill which is operated at a power density of more than 2.5 kill per liter of milling space and a peripheral speed of the stirrer of more than 12 m/s with exposure to a grinding medium having a diameter of less than 1 mm under phase-conserving conditions, thenb) subjecting the prepigment composition obtained by a) eitherb1) in the form of the mill base suspension thus obtained, orb2) after addition of an organic solvent to the mill base suspension obtained by a), orb3) in the case where the prepigment intermediate or the prepigment composition intermediate is isolated, after first taking it up in an organic solvent,to a finishing treatment at elevated temperature, andc) then isolating the resulting pigment or pigment preparation.