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6402829 |
Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size
An improved process for producing a substantially pure gamma phase a quinacridone pigment or pigment derivative involving preparing an aqueous slurry of a crude quinacridone in the presence of...
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6398858 |
Process for preparing colored pigments
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...
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6379451 |
Pigment composition and aqueous pigment dispersion product using the same
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...
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6375732 |
Pigments, the process of their manufacturing and their use
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...
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6361594 |
Direct preparation of pyrrolo&lsqb 3,4-C&rsqb pyrroles
A process is disclosed for the direct preparation of pigmentary 1,4-diketopyrrolo-[3,4-c]pyrroles of the formula (I) wherein each of R 1 and R 2 independently of the other is an isocyclic or...
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6358308 |
Finishing treatment of pigments in liquid or supercritical CO2
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.
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6358304 |
Ink with flow characteristics
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...
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6336966 |
Pigment dispersions containing dispersants having core and arm star architecture prepared by controlled radical polymerization
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...
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6323342 |
Gamma quinacridone pigment
A new gamma-I type quinacridone pigment characterized by C.I.E color space values in masstone, and a process for its preparation is disclosed. The new gamma quinacridone pigment is especially...
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6312513 |
Pigment concentrates containing dimerdiolalkoxylate additives, and methods of preparing same
Pigment concentrates comprising a pigment, a liquid carrier medium and a dimerdiolalkoxylate, wherein a dimer portion of the dimerdiolalkoxylate comprises from about 36 to about 44 carbon atoms,...
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6312514 |
Use of diol alkoxylates as additives for the production of pigment concentrates
Pigment concentrates comprising a pigment, a liquid carrier medium and a diol alkoxylate of the general formulae (I), (II) and/or (III) are described in conjunction with methods of preparing the...
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6313300 |
Oxidation process for preparing quinacridone pigments
A process for preparing an unsubstituted or substituted quinacridone of the formula ##STR1## or a solid solution of quinacridones of the formula (I), wherein X and Y are independently 1 or 2...
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6287377 |
Universal paint tinting concentrates
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,...
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6284035 |
Pigment preparations in granule form
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...
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6284036 |
Heat stable, pigmented sintered material comprising a boride, carbide, silicide, nitride or phosphide
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...
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6274065 |
Process for the preparation of fluorescent compositions, fluorescent compositions and their use
Preparation of a solid fluorescent composition comprising (1) mixing a host chromophore and an effective amount of a pigment precursor in a solvent, then generating a pigment as guest...
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6274728 |
Soluble chromophores having improved solubilizing groups
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,...
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6264733 |
Pigment particle growth and/or crystal phase directors
Pigment particle growth and/or crystal phase directors of the following formula: (MO 3 S) m --Q--(CH 2 --(X)--(Y) n ) o wherein: Q represents a pigment moiety; M represents a metal...
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6258158 |
Process for pigmenting porous metal oxides and materials pigmented therewith
The present invention relates to a process for pigmenting a porous metal oxide by applying a solution of a soluble pigment derivative and regenerating the organic pigment by heating, whereby the...
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6248165 |
Mixed crystals and solid solutions of 1,4-diketopyrrolopyrroles
Ternary solid solutions useful as pigments are disclosed. The ternary solid solutions result from incorporating a third component, which is a diketopyrrolopyrrole or quinacridone pigment, into the...
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6241814 |
Process for preparing quinacridone pigments
Linear unsubstituted and substituted quinacridone pigments and quinacridone mixed-crystal pigments are obtained by cyclizing dianilinoterephthalic acid with polyphosphoric acid and then hydrolyzing...
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6235099 |
Inkjet recording liquid and process for the production thereof
A water-dispersed inkjet recording liquid excellent in water resistance and transparency and also excellent in the property of ejection from a nozzle, containing, as a colorant, a water-based...
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6221150 |
Perylene compounds and pigment preparations
The present invention relates to pigment dispersants of the formula (I) ##STR1## in which Z 1 is a radical of the formula (Ia) --[X--Y] q --[X 1 --Y 1 ] r --[X 2 --NH] s H (Ia) in...
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6200378 |
Thiazine indigo pigments, solid solutions thereof and their preparation
A compound according to the formula (I) ##STR1## wherein R 1 and R 2 are independently the atoms necessary to complete the formation of a substituted or unsubstituted aromatic or aliphatic...
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6129786 |
Composite pigments based on polyalkylenepolyamine-modified nanoparticulate metal oxides and anionic dyes
Composite pigments based on nanoparticulate metal oxides modified by crosslinked or uncrosslinked polyalkylenepolyamine and anionic dyes are useful for coloring paints, inks, plastic, paper, wood,...
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6123763 |
Pigment dispersing agent and pigment composition containing the same
A colorless or only slightly colored pigment dispersing agent which is feasible as a pigment dispersing agent for pigments having various hues and has the general formula (1), ##STR1## wherein R 1...
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6113683 |
Colored pearlescent pigments
Colored pearlescent pigment comprising a pearlescent pigment and a second pigment, characterized in using an adhesion promotor for the mutual adsorbance of the pearlescent pigment and the second...
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6102996 |
Ink-jet inks comprising pigment precursors
A pigment-based ink composition is provided which employs a pigment precursor that is soluble in a non-aqueous solvent. Preferably, the ink composition is in the form of an aqueous, two-phase...
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6103006 |
Fluorescent polymeric pigments
Thermoplastic, non-water soluble, fluorescent pigments having improved lightfastness are provided which are suitable for coloring a variety of materials including plastics, particularly...
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6090196 |
Beta quinacridone pigment
A new beta quinacridone pigment characterized by masstone and tint reflection spectra, and a process for its preparation is disclosed. The new beta quinacridone pigment is especially useful for...
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6083315 |
Agglomerated pigment, process for producing the same, aqueous pigment dispersion, and water-based ink composition
An agglomerated pigment comprises (1) an organic pigment compound, (2) either a sulfonated organic pigment compound obtained by incorporating at least one sulfonic group into the organic pigment...
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6068695 |
Process for the continuous preparation of quinacridones
This invention relates to a continuous process for the preparation of quinacridone pigments by (a) preparing a reaction mixture by mixing (i) a 2,5-dianilinoterephthalic acid or ester...
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6066203 |
Pigment derivatives for waterborne coatings
This invention relates to pigment derivatives having the formula ##STR1## wherein Q represents an organic pigment moiety; X is -SO 2 - or -CO-; Alk is C 2 -C 8 alkylene or substituted C 2 ...
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6063182 |
Stir-in pigment compositions
A stir-in pigment composition for coloring high-molecular-weight material, particularly coatings and ink systems, comprises 85 to 99.5 parts by weight of a pigment and 0.5 to 15 parts by weight of...
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6056814 |
Pigment composition and aqueous pigment dispersion prepared therefrom
The present invention provide a pigment composition and a method for producing same at low cost, which has the same or more excellent quality compared with those produced by a salt milling process...
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6031100 |
Microwave syntheses of quinacridones, 6,13-Dihydroquinacridones, and 6,13-quinacridonequinones
This invention relates to a process for the preparation of quinacridone pigments by (a) exposing a reaction mixture containing (i) 2,5-dianilinoterephthalic acid,...
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6013126 |
Process for conditioning organic pigments
This invention relates to a process for conditioning organic pigments by (a) grinding a crude organic pigment at a temperature of about 0° C. to about 100° C. in the presence of (i) about 1 to...
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6013127 |
Process for the preparation of quinacridone solid solutions
Solid solutions comprising quinacridone and 6,13-dihydroquinacridone are prepared by oxidation of a finely divided 6,13-dihydroquinacridone salt in an aqueous basic alcoholic medium using hydrogen...
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6010567 |
Black-pigmented structured high molecular weight material
This invention relates to a black-pigmented high molecular weight organic material which is structured from a radiation-sensitive precursor by irradiation, the pigmentation of which material...
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5989333 |
Mixed crystal pigments of the quinacridone series
Mixed crystal pigments of the quinacridone series New quinacridone mixed crystal pigments consisting of a) from 85 to 99% by weight of unsubstituted β-phase quinacridone of the formula (I)...
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5972099 |
Process for preparing organic pigment compositions
This invention relates to a process for preparing pigment compositions by (a) treating an organic pigment with (1) a sterically hindered and/or bulky primary amine, and (2) a liquid in...
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5968242 |
Colourant-loaded molecular sieve
A molecular sieve, which contains in all, or only in some, of its cavities colorant molecules as well as a modifier which is covalently bound to said molecular sieve and which reduces its pore...
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5958129 |
Pigment formulations and processes for their preparation
Novel pigment formulations which comprise at least one organic pigment selected from the class consisting of perylene, perinone, quinacridone, azo, benzimidazolone, anthraquinone or anthanthrone...
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5944886 |
Colored aluminium pigments and the preparation process thereof
Colored aluminum pigments having a color pigment adhered closely, uniformly and firmly thereto through inorganic acid radical adsorbed on the surface of the aluminum pigment are suitable for use in...
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5928419 |
Surface-treated organic pigment and process for the production thereof
A surface-treated organic pigment excellent in initial dispersibility and long-term dispersion stability in water and an organic solvent and free from the coagulation of pigment particles, obtained...
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5922123 |
Method for conditioning organic pigments
This invention relates to a process for preparing pigment compositions by conditioning an organic pigment, at about 50 to about 200° C., with (1) at least about 0.1% by weight, relative to the...
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5922122 |
Pigment-dispersed composition
A composition containing an organic pigment and a compound having the formula (I): ##STR1## in which R 1 is a group having the formula (II): ##STR2## in which R 4 and R 5 represent hydrogen or...
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5919299 |
Process for producing transparent pigmentary quinacridones by acid swelling of premilled subpigmentary quinacridones in the presence of an organic liquid
A process for preparing transparent, pigmentary quinacridone compounds and solid solutions thereof comprises combining a premilled, sub-pigmentary powder containing at least one unsubstituted or...
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5900050 |
Method for conditioning organic pigments
This invention relates to a process for preparing pigment compositions by conditioning an organic pigment, at about 50 to about 200° C., with (1) at least about 0.1% by weight, relative to the...
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5879444 |
Organic pigment compositions
This invention relates to pigment compositions containing an organic pigment treated with a pigment derivative having the formula (I) ##STR1## wherein Q represents an organic pigment moiety; X is...
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