Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.

Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.

Abstract: A method of finishing an organic pigment that involves dissolving or dispersing the pigment in a mineral acid and crystallizing the pigment from the solution or dispersion by mixing with an aqueous diluent in the absence of a sulfonato-functional condensation product of an arylsulfonic acid and an aliphatic aldehyde as crystallization inhibitor, which comprises ripening the crystallized organic pigment in the presence of a surfactant or in the presence of a pigment solubility enhancer in aqueous suspension.

Abstract: The invention relates to a methods finishing an organic pigment by dissolving or dispersing the pigment in a mineral acid and crystallizing the pigment from the solution or dispersion by mixing with an aqueous diluent in the presence of a crystallization modifier constituted by a sulfonate-functional condensation product of a naphthalenesulfonic acid and at least one aliphatic aldehyde having 1 to 6 carbon atoms, and then isolating the pigment as a solid, wherein the crystallization modifier is present in the aqueous diluent.

Abstract: The invention relates to a method of finishing an organic pigment that involves dissolving or dispersing the pigment in an aqueous solvent or a mineral acid and crystallizing the pigment from the solution or dispersion in the presence of a crystallization modifier, and subsequently isolating the pigment as a solid, wherein the crystallization modifier is a condensation product containing sulfonate groups and formed from at least one hydroxyarylsulfonic acid and/or at least one hydroxydiaryl sulfone compound and at least one aliphatic aldehyde having 1-6 C atoms, optionally urea, and an alkali metal sulfite if appropriate, or is a mixture of such condensation products.

Abstract: Green pigment preparations comprising as major constituents (A) C.I. Pigment Green 36 or a mixture of C.I. Pigment Green 36 with one further, or two or more, green, yellow and/or blue pigment(s), (B) at least one pigment derivative, and (C) if desired, at least one surface-active agent different from (B), and also processes for producing them, and their use for producing the green component of color filters.

Abstract: Use of high functionality hyperbranched polycarbonates obtainable by a) preparing one or more different condensation products (K) either by a1) reacting at least one organic carbonate (A) of the general formula RO[(CO)O]nR with at least one aliphatic, aliphatic/aromatic or aromatic alcohol (B) having at least 3 OH groups by elimination of alcohols ROH, where each R is independently a straight chain or branched aliphatic, aromatic-aliphatic or aromatic hydrocarbyl radical having 1 to 20 carbon atoms and the R radicals may also be bonded to each other to form a ring comprising the grouping —O[(CO)O]n—, where n is an integer from 1 to 5, or a2) reacting phosgene, diphosgene or triphosgene with the aliphatic, aliphatic/aromatic or aromatic alcohol (B) to liberate hydrogen chloride, the quantitative ratio of the alcohols (B) to the carbonates (A) or to the phosgenes in the reaction mixture being so chosen that the condensation products (K) comprise on average either one carbonate or carbamoyl chloride group and mo

Abstract: Pigment preparations obtainable by coating an organic pigment suspended in an aqueous medium with a resin having an acid number of .gtoreq.200 and with a nonionic surfactant, and isolating and optionally drying and mechanically comminuting the coated pigment, are useful for pigmenting water-thinnable printing inks and coatings.

Abstract: Metal-free phthalocyanine of the .gamma.-form is suitable inter alia for coloring printing inks, plastics and coatings and is characterized by the X-ray powder diagram (Cu.sub.K.alpha.) having the essential glancing angles 2 theta [.degree.]6.8, 7.4, 13.6, 14.9, 15.9, 16.9, 20.5, 22.4, 24.7, 26.2 and 27.8, possibly in mixture with other crystal forms, in which case the glancing angles may be shifted by .+-.0.2.degree. (FIG. 1).

Abstract: Pigment formulations containing(a) at least one finely divided pigment,(b) at least one copolymer obtainable by free radical polymerization of(.alpha..sub.1) C.sub.8 -C.sub.40 -monoolefins or(.alpha..sub.2) C.sub.8 -C.sub.40 -alkyl vinyl ethers or(.alpha..sub.3) a mixture of C.sub.8 -C.sub.40 -alkyl vinyl ethers and up to 50 mol % of C.sub.8 -C.sub.40 -monoolefins with(.beta.) monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic acids or C.sub.4 -C.sub.12 -dicarboxylic anhydridesand having a molecular weight of from 500 to 20,000 g/mol, some or all of whose carboxyl or anhydride groups may be reacted with ammnonia, amines, alcohols, amino- or hydroxycarboxylic acids or alkali metal or alkaline earth metal hydroxides, and(c) if required, further assistants conventionally used in pigment formulationsare used for the preparation of pastes, printing inks and coatings.

Abstract: A colorant mixture for use in printing inks contains a pigment of formula I ##STR1## a basic dye of the formula II ##STR2## where the substituents are as defined in the specification L-A. and exhibits higher color strength than that of the pigment of formula I alone.

Abstract: Pigment formulations contain a) a finely divided pigment, b) at least one colorant which has at least one external basic group, c) at least one acidic and/or neutral phosphoric ester and d) if required, further assistants conventionally used in such formulations. The formulations are used for pigmenting printing inks and lakes.The printing inks, pastes and lakes produced using the formulations have substantially better flow behavior than the inks and lakes obtained using prior art pigments.

Abstract: Phenyloxadiazolylanilines are prepared by reaction of a benzonitrile in an aqueous reaction medium first with hydroxylamine or an acid addition salt thereof to give a benzamideoxime and then with an isatoic anhydride to give a non-cyclic compound and subsequent cyclization, the reaction sequence being carried out in the presence of an anionic surfactant.

Abstract: Pigment of the general formula:f.Het (I)where F is the cation of a cationic dye which has an absorption maximum at >700 nm and may or may not contain anionic groups and Het is an anion of a heteropolyacid based on tungsten, molybdenum, vanadium or a mixture of these with phosphorus, silicon, cobalt, aluminum, manganese, chromium, nickel or a mixture of these or a copper (I)-hexacyanoferrate(II) anion, are superior to the known IR dyes in terms of thermal stability and photostability, and give optical recording media having superior properties, such as a high signal/noise ratio.

Abstract: Pigments of the general formulaF.multidot.Het (I)where F is the cation of a cationic dye which has an absorption maximum at >700 nm and may or may not contain anionic groups and Het is an anion of a heteropolyacid based on tungsten, molybdenum, vanadium or a mixture of these with phosphorus, silicon, cobalt, aluminum, manganese, chromium, nickel or a mixture of these or a copper(I)-hexacyanoferrate(II) anion, are superior to the known IR dyes in terms of thermal stability and photostability, and give optical recording media having superior properties, such as a high signal/noise ratio.

Abstract: Pigments of the general formulaF.multidot.Het (I).where F is the cation of a cationic dye which has an absorption maximum at >700 nm and may or may not contain anionic groups and Het is an anion of a heteropolyacid based on tungsten, molybdenum, vanadium or a mixture of these with phosphorus, silicon, cobalt, aluminum, manganese, chromium, nickel or a mixture of these or a copper(I)-hexacyanoferrate(II) anion, are superior to the known IR dyes in terms of thermal stability and photostability, and give optical recording media having superior properties, such as a high signal/noise ratio.

Abstract: Improved lakes based on basic dyes and heteropolyacids (PM, PTM, SM, PSTM and STM) are prepared by a process in which the lakes are heated to 50.degree.-100.degree. C. at pH 2-5 in the presence of (1) primary, secondary or tertiary aliphatic amines, (2) alkylamino-C.sub.2 -C.sub.8 -alkanoic acids, (3) diaryl- or triarylamines, (4) acidic or neutral phosphates based on fatty alcohols, their ethylene oxide or propylene oxide/ethylene oxide adducts, polypropylene glycol, polyethylene glycol, or propylene oxide/ethylene oxide block copolymers, (5) sulfuric acid half esters of fatty alcohols, of their ethylene oxide adducts or alkylphenol/ethylene oxide adducts, (6) C.sub.8 -C.sub.

Abstract: Triaminotriarylmethane colorants are obtainable by first reacting an aluminum or iron trihalide complex of a 4,4',4"-trihalotriphenylmethyl halide with a metanilic acid, a sulfanilic acid or a .beta.-naphthylaminesulfonic acid and then reacting the product with one or more anilines to replace the halogen atoms located in the 4-positions.The compounds according to the invention are very useful as pigments, for example in printing inks, or for toning carbon black.

Abstract: Easily dispersible alkali blue pigments with high color strength are obtained if the pigment is precipitated in the presence of (1) primary, secondary or tertiary aliphatic amines, (2) N-alkylamino alkanic acid, (3) a diaryl or triarylamine, (4) an acid or neutral aliphatic ester of phosphoric acid, (5) a half ester of sulfuric acid based on fatty alcohol, fatty alcohol-EO adducts or alkyl phenol-EO adducts, (6) an alkane or alkene sulfonic acid on a dialkylsulfimide, (7) EO adducts based on alkylphenols, alkanols or alkylamines, (8) polypropylene glycol or PO/EO block copolymers based on alkane diols or alkane polyols or in the presence of mixtures of these compounds or is mixed with at least one of the substances listed under (1) to (8) after the precipitation with acid in the acid suspension and is isolated.Alkali blue pigments are obtained which are easily dispersible in offset printing ink varnishes and which result in excellent color strength of the printed matter.