Abstract: A mono-azo compound of Formula (1) or a salt thereof: wherein: A is N, C—Cl, C—CN or C—NO2; R1 is H or optionally substituted alkyl; G is H, sulpho, carboxy, optionally substituted alkyl, optionally substituted alkoxy, —CF3, halo or —PO3H2; L1 and L2 each independently is —SR2, —OR3 or —NR4R5; R2, R3, R4 and R5 each independently is H, optionally substituted alkyl or optionally substituted aryl; or R4 and R5 together with the nitrogen to which they are attached form an optionally substituted five or six membered ring; provided that L1 and L2 are free from carboxy, sulpho and —PO3H2 groups; and the use of a mono-azo compound of Formula (1) or a salt thereof in inks, an ink jet printing process using the inks, a substrate printed with the inks and an ink jet printer cartridge containing the inks.

Abstract: Colored pigments having one or more desired parameters and/or properties are described. These parameters and/or properties include: a) a particles size of from about 10 nm to about 300 nm; b) an accusizer number of less than 1010 particles/ml of dispersion at 15% solids which are greater than 0.5 micron; c) a filterability such that when in a liquid medium, 100 ml having 10% solids of the colored pigment filters through a 3 micron nylon absolute filter; d) a colored pigment purity of greater than about 80%, based on extractable material; and/or e) a stability such that the above-described properties do not change by more than 50% at 25 degrees C for at least one week. Colored pigments having at least one organic group and having one or more of the above-described characteristics is also described as well as a process for preparing surface-modified colored pigments.

Abstract: Aqueous based pigment dispersions wherein the pigment is dispersed in a dispersant dye in the absence of any other dispersant or additive and aqueous based printing ink compositions containing these a pigment dispersions. Methods for preparing aqueous based pigment dispersions, wherein the pigment is dispersed in a dispersant dye, and method for preparing printing ink compositions incorporating these dispersions.

Abstract: A method for dispersing a pigment in an aqueous solution is provided. The method comprises: (a) providing the pigment, which is distinguished in having an azo group and either a &bgr;-diketo structure or a hydroxyl group, each conjugatively associated with the azo group; (b) treating a surface of the pigment with a base having sufficient strength (e.g.

Abstract: Colored pigments having one or more desired parameters and/or properties are described. These parameters and/or properties include: a) a particles size of from about 10 nm to about 300 nm; b) an accusizer number of less than 1010 particles/ml of dispersion at 15% solids which are greater than 0.5 micron; c) a filterability such that when in a liquid medium, 100 ml having 10% solids of the colored pigment filters through a 3 micron nylon absolute filter; d) a colored pigment purity of greater than about 80%, based on extractable material; and/or e) a stability such that the above-described properties do not change by more than 50% at 25 degrees C. for at least one week. Colored pigments having at least one organic group and having one or more of the above-described characteristics is also described as well as a process for preparing surface-modified colored pigments.

Abstract: One aspect of the invention relates to pigment composition containing a monoarylide pigment and a hydrocarbyl polypropyleneamine compound. Another aspect of the invention relates to making an monoarylide pigment involving coupling a substituted or unsubstituted acetoacetanilide with at least one diazotized aromatic amine in a solution containing a hydrocarbyl polypropyleneamine. Yet another aspect of the invention relates to paint, ink, electrostatic toner, powder coating, and paper compositions containing the pigment composition or monoarylide pigment made in accordance with the invention.

Abstract: A universal tinting concentrate for both solvent- and water-based paints and coatings. The universal tinting concentrate is a composition which includes a colorant component, such as pigment, colorant, tinting agent and/or metal effect agent; a pigment dispersant including a moiety selected from the group consisting of an organic acid, anhydride, salt thereof, and derivative thereof, wherein the dispersant facilitates the dispersal of the colorant component in organic-based and aqueous-based vehicles; and a pH-neutralizing agent. In one embodiment of the invention, the pigment dispersant is represented by the following structure: where r and s are integers and r+s is 6 to 16; x and y are integers and x+y is 0 to 19; Z is H or COOH; and Z′ is H or COOH.

Abstract: The invention relates to a process for the preparation of pigment granules, which comprises adding a wax or a waxy polymer to an organic pigment during the finish in an organic or aqueous organic medium and spray-drying the aqueous suspension obtained after removal of the organic solvent by steam distillation or washing out with water.

Abstract: Solid solutions of monoazo pigments comprising a host lattice and at least one guest material wherein the host lattice is a material having the general formula I or II, wherein compound of formula I is defined as The guest material(s) have the same general formulae as their respective hosts with the proviso that they differ in molecular structure in at least one position from the respective hosts.

Abstract: The invention relates to a pigment preparation comprising an organic pigment and 0.2 to 20% by weight, based on the total weight of the pigment preparation, of an ammonium polyphosphate or of an organophosphorus compound.

Abstract: Aqueous pigment preparations containing a) at least one pigment, b) at least one condensation product based on A) suphonated aromatics, B) aldehydes and/or ketones and optionally C) one or several compounds selected from the group of non sulphonated aromatics, urea and urea derivatives, and c) at least one polyether polyol with a boiling point of above 150° C., at normal pressure. The inventive preparations are highly suitable for pigmenting natural or synthetic materials.

Abstract: An etheramine pigment dispersing salt for enhancing the dispersion performance of an organic pigment composition adding to 100 parts by weight of pigment about 1 to 40 parts by weight of an etheramine pigment dispersing salt.

Abstract: The present invention relates to compositions comprising a sulfonated diketopyrrolopyrrole and a Mannich-type substituted dihydroquinacridone to produce colored materials having improved stability at high temperatures. The instant compositions can be used for pigmenting polymeric materials, such as color filters.

Abstract: Colored lustrous pigments of superior quality are prepared by dry blending a platy substrate such as a metal oxide-coated mica nacreous pigment and a hydrophobic colorant at low shear. The resulting blend exhibits a well dispersed, stable coloration, increased hydrophobicity and is particularly useful in industrial and automotive applications. The technique can also be employed to prepare pigments for cosmetic application.

Abstract: A pigment composition comprises a wet-ground pigment mixture of (A) &egr;-copper phthalocyanine and (B) at least one pigment selected from a group consisting of condensed polycyclic pigments and azo pigments. The weight ratio of thecomponent (A) to the component (B) is 100:0.1 to 100:50. The pigment composition can be produced by wet-grinding (A-1) &agr;-copper phthalocyanine and the component (B) at a weight ratio of from 100:0.1 to 100:50 in a non-aromatic solvent. A colorant comprises the pigment composition and at least one component selected from the group consisting of film-forming resins and liquid media. A colored article can be obtained using the colorant as a coloring agent.

Abstract: There is disclosed a self-dispersible aqueous pigment dispersion and preparing method thereof, the dispersion comprising an aqueous solution, particles of a pigment and a water-soluble pigment derivative, said particles being dispersed in the aqueous pigment dispersion in a concentration within the range from 2 to 25 wt. % based on the amount of the aqueous pigment dispersion, wherein a part of the water-soluble pigment derivative is adsorbed on the surface of the particles of the pigment to form dispersed particles comprising the particles of the pigment adsorbed by said part of the pigment derivative, and the remaining parts of the water-soluble pigment derivative are free in the dispersion without being adsorbed on the surface of the pigment in a concentration less than the critical flocculation concentration on which flocculation is initiated on said particles of the pigment dispersed under said concentration.

Abstract: A radiation curable monomer and a dystuff are mixed in a curable formulation and fed into a hot evaporator under vacuum. The blend is flash evaporated through a nozzle and recondensed onto a moving substrate in contact with a temperature-controlled rotating drum. The condensed film is then crosslinked with a high-energy ultraviolet or electron-beam radiation source to effect cross-linking of the monomer. The resulting product consists of a crosslinked polymer matrix incorporating dyestuff molecules within its structure, which dramatically enhances the durability, solvent resistance, heat stability and migration fastness of the product. These properties can be further improved by chemically bonding the dyestuff molecules with the crosslinked polymer network, which can be accomplished by judiciously functionalizing the dyestuff with appropriate functional groups designed to polymerize or to react with the curable monomer.

Abstract: The invention relates to a process for preparing metal complexes of polyvalent metal ions with azo compounds of formula (I) or tautomeric structures, in which R and R′ are —OH, —NH2, —NH—CN, aryl-amino, acylamino, or p-chlorophenyl, and R1 and R1′ are independently —OH or —NH2, that intercalate an intercalate by (1) stirring an aqueous dispersion of an alkali metal salt of the azo compound with the polyvalent metal salt at 10 to 35° C., (2) admixing an aqueous solution, dispersion, or emulsion of the intercalate, (3) passing the mixture through a reaction zone at 85 to 140° C., while regulating the pH so that the product dispersion leaving the reaction zone has a pH of 0.5 to 3, (4) adjusting the pH of the mixture to at least pH 5, and (5) isolating the intercalated metal complex.

Abstract: Near-infrared transmitting black azo pigments are represented by the following formula (1) and have a crystalline form selected from the group consisting of a thin, long crystalline form and a leaf-shaped crystalline form.

Abstract: This invention relates to a process for preparing dispersible organic pigments by (a) milling a mixture containing (1) one or more organic pigments, (2) at least about 1% by weight, relative to the organic pigment, of one or more aromatic polyalkylene oxide dispersants, (3) 0 to about 10 parts by weight, relative to the organic pigment, of a milling liquid in which the organic pigment is substantially insoluble, (4) 0 to about 50% by weight, relative to the organic pigment, of one or more milling additives other than dispersant (2), and (5) 0 to about 20% by weight, relative to the organic pigment, of one or more surface treatment additives; (b) optionally, adding to the milled pigment (6) one or more liquids in which the organic pigment is substantially insoluble in amounts such that the total solids content is not reduced below about 10%, and (7) one or more multivalent metal salts and/or one or more quaternary ammonium salt; and (c) isolating the milled organic pigment

Abstract: The invention relates to an advantageous process for producing highly concentrated pigment presscakes which comprises concentrating a pigment suspension on a high-pressure filter press with a pressure of at least 16 bar to a pigment content of at least 50% by weight without adding nonionic surfactants which have a cloud point in water.

Abstract: Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric groups, onto the pigment by means other than adsorption. A modified pigment product is described comprising a pigment having attached at least one group comprising the formula: —X—[NIon]pR wherein X comprises an aromatic group or an alkyl group, NIon comprises at least one type of non-ionic group, R represents hydrogen or comprises an aromatic group or an alkyl group, and p represents an integer from 1 to 500. Modified pigment products are also described comprising a pigment having attached at least one alkylene oxide group or at least one polymeric group.

Abstract: A pigment is synthesized in an aqueous medium and the pigment dispersion is purified by ultrafiltration or microfiltration. In particular, an aqueous pigment dispersion having a very small average particle size and a narrow particle size distribution may be prepared by the steps of (a) synthesizing a pigment in an aqueous medium and (b) removing an impurity such as a dissolved synthesis by-product or unreacted starting material through cross flow filtration using a membrane having an average pore diameter of from about 3 nanometers to about 3000 nanometers to produce a purified aqueous pigment dispersion.

Abstract: The present invention is drawn to pigment granules having a particle size from 0.5 to 4 mm, which consist of at least 90% by weight of at least one organic pigment selected from the group consisting of diketopyrrolopyrrole, quinacridone, perylene, indanthrone, flavanthrone, isoindolinone or amino- anthraquinone pigments and from 0 to 10% by weight of a binder having from 2 to 7 mol of carboxyl groups per 1000 g and from 0 to 5% by weight of a neutral emulsifier. The binder and the emulsifier together do not represent more than 10% by weight of the oveerall amount of pigment granules. The pigment present in the pigment granules has a particle size of from 0.01 to &mgr;m.

Abstract: A method for manufacturing a pigment dispersed liquid, comprising at least:

Abstract: Pigment preparations comprising a) at least one organic base pigment, b1) at least one perylene pigment dispersant of the formula (I)  and b2) at least one acidic, carboxyl- or sulfo-containing perylene pigment dispersant have advantageous rheological and coloristic properties.

Abstract: An injection-molding process using warp-free pigment compositions including diaryldiketopyrrolo[3,4-C]pyrroles to improve the dimensional stability of the injection molded product by decreasing warping wherein the constituents of the formulation being injection molded are added into an injection molding machine in ready-premixed form or simultaneously as individual components. Preferred pigments are quinacridone pigments, disazo condensation pigments, isoindolinone pigments and pyrrolo[3,4-C]pyrrole pigments with pyrrolo[3,4-C]pyrrole pigments being especially preferred.

Abstract: Pigment preparations comprise a) at least one diketopyrrolopyrrole pigment, and b) at least one perylene pigment dispersant of the formula (I)  and have advantageous rheological and coloristic properties.

Abstract: This invention relates to a process for preparing conditioned organic pigments by (a) milling a mixture comprising: (1) one or more crude organic pigments; (2) at least about 0.1% by weight, relative to the organic pigment, of one or more acrylic copolymer dispersants; and (3) 0 to about 100 parts by weight, relative to the organic pigment, of a milling liquid in which the organic pigment is substantially insoluble; and (b) isolating the milled organic pigment.

Abstract: A diamide type azo compound represented by the general formula (I): which is derived from 2-hydroxy-3,6-dicarboxylic acid and at least one of the amide moieties in the compound is an aliphatic amide moiety, various use of the same and process for preparing the same are provided.

Abstract: Pigment composition which comprises azo pigments and auxochromes. The composition is prepared in-situ by coupling an aromatic diazonium compound with 3-hydroxy-2-naphthoic acid and can be produced in a fixed quality with excellent reproducibility, transparency, a high color strength, clear and vivid hue and good water resistance.

Abstract: The present invention relates to a process for preparing surface-modified colored pigments. The process includes the steps of: preparing a reaction batch comprising a treating agent and a diazotizing agent; adding a colored pigment to the batch; and mixing the colored pigment and the batch under high shear conditions to form a reaction product comprising a surface-modified colored pigment. The treating agent has an organic group which comprises at least one diazotizable group. In a preferred embodiment the diazotizable group comprises a) at least one aromatic group or at least one C1-C20 alkyl group, and b) at least one ionic group, ionizable group, nonionic group, or a mixture thereof. The surface-modified colored pigments prepared by the process of the present invention have been found useful in aqueous or solvent based compositions and particularly in ink jet ink compositions.

Abstract: An orange laked monoazo pigment has the following formula (I): wherein M is an alkaline metal selected from the group consisting of calcium, barium, strontium, magnesium and manganese.

Abstract: The invention provides a process for preparing azo colorants which comprises spraying one or more coupling components individually or in a mixture and one or more compatible diazonium salts individually or in a mixture, in their solution or suspension form through nozzles to a point of conjoint collision in a reactor chamber enclosed by a housing in a microjet reactor, a gas or an evaporating liquid being passed into the reactor chamber through an opening in the housing for the purpose of maintaining a gas atmosphere in the reactor chamber, and the resulting product solution or suspension and the gas or the evaporated liquid being removed from the reactor through a further opening in the housing by means of overpressure on the gas entry side or underpressure on the product and gas exit side.

Abstract: There are disclosed a pigment composition comprising a dry-milled pigment, a water-soluble resin, and a nonionic surfactant composed of a compound having an acetylenic linkage; and a method for producing a pigment composition, comprising dry-milling a pigment containing coarse particles in the presence of a water-soluble resin and a nonionic surfactant composed of a compound having an acetylenic linkage. The production method is also possible in the form of comprising (a) dry-milling a pigment containing coarse particles in the presence of a nonionic surfactant composed of a compound having an acetylenic linkage thereby obtaining an intermediate milled product, and (b) further dry-milling a mixture of the intermediate milled product and a water-soluble resin.

Abstract: Hybrid pigments of diketopyrrolo[3,4-c]pyrrole pigments and pigments bearing “acid” hydrogens like —NH, —OH or —CONH— groups, a process for the manufacturing of the hybrid diketopyrrolo[3,4-c]pyrrole pigments with pigments bearing “acid” hydrogens like —NH, — OH or —CONH— groups and their use as a pigment.

Abstract: Disclosed are blue shade red to magenta monoazo pigments which are obtained by diazotization of 5-alkoxy-2-aminobenzenesulfonic acids, coupling of the diazonium compound with a hydoxynaphthalenesulfonic acid and subsequent laking of the coupling product with a divalent metal salt. The pigments are characterized by the formula: wherein R is a lower alkyl, e.g. a methyl or ethyl group, or a hydroxycarbyl group, R1 is hydrogen, chloro, a lower alkyl group such as methyl or ethyl, or a lower alkoxy group such as a methoxy or an ethoxy group, and M is Ca, Sr, Ba, Mn, Mg or Zn. The new pigments have a magenta color, excellent heat stability, bleed fastness and very high color strength. These pigments are suitable for the pigmenting of plastics, inks and coatings, among other materials.

Abstract: Preparation of stabilized pigment compositions, comprising mixing a water-miscible quaternary ammonium compound of formula III wherein R1, R2, R3 and R4 independently of each other stand for C1-C22aklyl, C2-C22alkenyl, benzyl, pyridyl, quinolyl, isoquinolyl or polyoxyalkylenyl, and X− is an anion, a water-immiscible organic solvent and a pigment.

Abstract: The invention provides a process for aftertreating organic pigments by causing the ground or unground crude organic pigment and liquid or supercritical carbon dioxide to act on one another.

Abstract: A rheology-modified ink includes (1) an ink carrier, which is either aqueous-based or solvent-based, (2) an organic pigment, which is preferably an azo pigment of the type generally used with an aqueous-based ink carrier, and (3) a flow-modifier, which is a metal salt of either an aromatic carboxylic acid or an aromatic hydroxy carboxylic acid. Addition of the flow-modifier (also called a rheology-modifier) improves the dispersion of pigment within the aqueous-based carrier thereby improving the flow characteristic of the ink. Also disclosed is a pigment including a flow-modifier and a rheology-modified paint.

Abstract: Metal complexes of an azo compound which conforms to the formula (I) or one of its tautomeric structures wherein R and R′ are independently OH, NH2, NH—CN, acylamino or arylamino, R1 and R1′ are independently —OH or —NH2, and which contain at least one guest compound, characterized in that the metal complexes correspond to the mono-, di-, tri- and tetrainions of the azo compounds of the formula (I) with the metals selected from the group consisting of Ca, Zn, Cu, Fe, Co, Sr, Ba, Cr, Sn, Al, Mg, Cd, Pb and La.

Abstract: A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant has core and arm star-type architecture, and is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, using (i) arm-core, (ii) arm-core-arm, (iii) core-arm, or (iv) concurrent core and arm methods. The arms of the pigment dispersant each have hydrophobic and hydrophilic polymeric chain segments.

Abstract: Disclosed is a method of producing a disazo pigment, which a coupling reaction is carried out while feeding, into an acidic aqueous solution, a tetrazo aqueous solution containing a tetrazo component of benzidines and a coupler aqueous solution containing a coupling component, wherein the coupling component is a mixture comprising a main component represented by the formula (1): CH3COCH2CONH—X, wherein X represents a phenyl group optionally having one or the same or different plural substituents selected from the group consisting of a methyl group, methoxy group and chlorine atom; a first additional component represented by the formula (2): CH3COCH2CONH—Y, wherein Y represents a phenyl group having a substituent selected from the group consisting of —CONR2 group, —SO2NR2 group and —NHCOR group, and the phenyl group may further have a substituent selected from the group consisting of a methyl group, methoxy group, chlorine atom, —CONR2 group, —SO2NR2 group and —N

Abstract: Compound of the formula (I) wherein R is hydrogen or optionally substituted C1-C6-alkyl, R1 is hydrogen or C1-C6-alkyl, R2 is hydrogen, optionally substituted C1-C6-alkyl or optionally substituted phenyl, the ring D is optionally substituted by one or more identical or different substituents selected from the group consisting of C1-C6-alkyl, C1-C6-alkoxy, halogen, especially F, Cl and Br, and SO3H, m is 0 or 1, n is 1, 2 or 3 and as a function of n X is a mono-, di- or trivalent acyl radical, pyrimidine or 1,3,5-triazine radical which is not fiber-reactive.

Abstract: Disclosed is a yellow monoazo pigment which is obtained by diazotization of anthranilic acid, coupling of the diazonium compound with 1-(3′-sulfophenyl)-3-methyl-5-pyrazolone and subsequent laking of the coupling product to a strontium salt. The pigment is characterized by the formula: The new pigment has excellent heat stability and bleed fastness and very high color strength. It is suitable for pigmenting of plastics, inks and coatings, and particularly suitable for pigmenting of plastics.

Abstract: A universal tinting concentrate for both solvent- and water-based paints and coatings. The universal tinting concentrate is a composition which includes a colorant component, such as pigment, colorant, tinting agent and/or metal effect agent; a pigment dispersant including an organic acid containing no more an 70 carbon atoms; and a pH-neutralizing agent. In one embodiment of the invention, the pigment dispersant is represented by the following structure: where r and s are integers and r+s is 6 to 16; and x and y are integers and x+y is 0 to 19; and Z is H or COOH and Z′ is H or COOH.

Abstract: The present invention relates to a process for pigmenting a porous sintered material comprising boride, carbide, silicide, nitride or phosphide compounds by applying a solution of a soluble pigment derivative to the non-coloured sintered material and regenerating the organic pigment by heating, whereby the organic pigment is deposited into the sintered material's pores, as well as to the new pigmented sintered materials themselves.

Abstract: Pigment preparations in granule form comprising as essential constituents from 50 to 99.5% by weight of at least one inorganic pigment and from 0.5 to 50% by weight of at least one organic pigment are prepared and used for coloring polymeric materials.

Abstract: Mono- or dipotassium salts of azo compounds conforming to the formula (I) or one of its tautomeric structures where R and R′ are independently OH, NH2, NH—CN, acylamino or arylamino and R1 and R1′are independently —OH or —NH2, and also their hydrates.

Abstract: Compounds of formula A(B)x  (I), wherein x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series that is bonded to x groups B via one or more hetero atoms, those hetero atoms being selected from the group consisting of N, O and S and forming part of the radical A, each group B independently of any other(s) is hydrogen or a group of the formula  at least one group B being a group of the formula The compounds according to the invention are used in high-molecular-weight organic materials, thermo-, photo- or chemo-sensitive recording materials, light-sensitive negative or positive resist compositions, ink compositions for ink-jet printing and color tapes for thermal transfer printing.