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7585364 |
Quinacridone derivatives for pigment dispersions
A quinacridone derivative according to Formula (I):
wherein R 1 and R 2 are each independently selected from the group consisting of hydrogen, alkyl, and halogen. Also, methods for preparing...
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7553365 |
Water-based pigment dispersions, inkjet recording inks, and color filters
An aqueous pigment dispersion is produced by ultrafinely dispersing a pigment dispersion mixture, which has been obtained by mixing at least a pigment and a dispersant in an aqueous medium, with...
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7550041 |
Highly concentrated flowable pigment composition and process for its manufacture
The invention pertains to a highly concentrated pigment comprising
from 75 to 95% by weight, preferably from 78 to 95% by weight, most preferred from 80 to 95% by weight, based on the weight...
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7538155 |
Method or producing an organic pigment dispersion liquid and organic pigment fine particles obtained by the method
A method of producing an organic pigment dispersion liquid, which has the steps of: providing an alkaline or acidic solution with an organic pigment dissolved therein and an aqueous medium, wherein...
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7537654 |
Quinacridone nanoscale pigment particles and methods of making same
A process for preparing coated nanoscale quinacridone pigment particles, includes: mixing a quinacridone pigment precursor or crude quinacridone pigment with a first solution including an acid to...
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7503972 |
Organic pigment fine particles and method of producing same
Two or more solutions comprising an organic pigment solution in which an organic pigment is dissolved in a good solvent, and a poor solvent compatible with the good solvent, or a solution of the...
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7459017 |
Stir-in form of pigment
Disclosed is a composition and process of manufacture of a stir-in form of pigment with increased dispersing and color properties. Pigment is slurried with acetylenic dispersing agents, wet-milled...
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7427324 |
Methods of making quinacridone nanoscale pigment particles
A nanoscale pigment particle composition includes a quinacridone pigment having at least one functional moiety, and a sterically bulky stabilizer compound having at least one functional group,...
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7427323 |
Quinacridone nanoscale pigment particles
A nanoscale pigment particle composition includes a quinacridone pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional...
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7427322 |
Organic pigment fine-particle, and method of producing the same
A method of producing a dispersion of a pigment, comprising: bringing a solution in which an organic pigment is dissolved, and an aqueous medium, into contact with each other in a channel having an...
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7419542 |
2,9-dichloro-quinacridone as α-quinacridone crystal phase inhibitor
The invention is directed to a method or use of 2,9-dichloro-quinacridone as an alpha crystal phase inhibitor and optionally, 4,11-dichloroquinacridone during the beta-quinacridone or...
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7399354 |
Method for the production of pigment granules
Dispersible pigment granules are produced by mixing an aqueous suspension of an organic pigment with an aqueous emulsion of a wax-like additive. The aqueous emulsion is then allowed to coagulate...
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7393404 |
Pigment dispersants and their use
A pigment dispersant contains the following component (a) alone or the following components (a) and (b) in combination: Component (a): a composite pigment formed of a diketopyrrolopyrrole pigment...
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7381260 |
Thiazineindigo pigment dispersant, and pigment composition, colored composition and color filter, using the same
A thiazineindigo pigment dispersant represented by Formula (1) or (2):
where E denotes a basic group. A pigment composition contains a pigment material, and the thiazine indigo pigment...
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7347894 |
Pigment dispersants and their use
There is disclosed a pigment dispersant comprises the compound represented by the following formula (I) or a metal salt, ammonium salt, amine salt or alkylammoniumchloride salt thereof. Also...
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7311953 |
Colored composition for color filter and display using color filters formed of the colored composition
An object of the present invention is to obtain color filters having a high contrast, a high color purity and an improved transmittance for blue color, and a display using the color filters. In the...
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7300511 |
Low viscosity, highly pigmented oil based dispersions exhibiting a low relative interfacial tension drop
Pigment dispersions that when used in printing ink having a relative interfacial tension drop of less than 1.5, and offering an ink viscosity of less than 150 Pa.s, and containing at least 45 wt. %...
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7252710 |
Pigment dispersion composition, use thereof and compound for pigment treatment
A pigment dispersion composition which can be suitably applied in such fields as color filters, black matrices and ink jet recording where it is necessary to finely disperse pigments still with...
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7211139 |
Process for preparing nanoscale quinacridone
This invention relates to a method for production of nanoscale size quinacridones through a wet-salt attrition process by combining a crude quinacridone pigment in the presence of (i) an inorganic...
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7198667 |
Solid pigment preparations containing pigment derivatives and surface-active additives
Solid pigment preparations containing the following ingredients as substantial components: (A) 60–85 wt. % of at least one organic pigment, (B) 0.1–15 wt. % of at least one pigment derivative...
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7192477 |
Process for producing pigment nanoparticle
The process for producing highly concentrated nanometer-size fine particles of an organic pigment, which comprises dissolving the organic pigment in an amide solvent, especially an organic solvent...
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7166158 |
Quinacridone pigment compositions comprising unsymmetrically substituted components
The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for...
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7147703 |
Pigment finishing by microwave heating
The invention relates to a process for aftertreating organic pigments which comprises heating the unground or ground organic crude pigment in water and/or organic solvents by means of microwave...
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7147704 |
Pigment dispersing agent, pigment composition and pigment dispersion
A pigment dispersing agent wherein a quinophthalone structure is bonded to a triazine structure through an arylene group or a heteroaromatic ring and a basic functional group is bonded to triazine...
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7135062 |
Hydrophilic coloring matter for recording image, aqueous coloring agent for recording image, method and device for recording image
Image-recording, hydrophilic colorants having an organic pigment linked to a hydrophilic compound through a linking group and which are capable of forming images excellent in print quality such as...
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7135067 |
Water-based pigment dispersions, the production thereof and the use of the same
The invention relates to a pigment dispersion consisting essentially of a) at least one organic or inorganic pigment or a combination of the same, b) an alpha-methyl--omega-hydroxy-polyethylene...
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7122081 |
Process for aqueous milling of quinacridone pigments
The present invention is directed to an aqueous process for reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant,...
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7101428 |
2,9-Dichloro-quinacridone as alpha-quinacridone crystal phase inhibitor
The invention is directed to a method or use of 2,9-dichloro-quinacridone as a crystal phase inhibitor during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction...
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7077899 |
Pigment dispersing agent, pigment composition containing the same and pigment dispersion containing the same
A pigment dispersing agent of the formula (1) capable of providing a printing ink or a coating composition excellent in fluidity and dispersion stability and a dry coating excellent in gloss, a...
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7074268 |
Pigment composition and printing ink containing the same
A pigment composition obtainable by dry-milling an organic pigment in the presence of a resin for a printing ink, the resin being composed of a synthetic resin for a printing ink in an amount of...
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7074267 |
Compositions and methods for imparting improved rheology on pigment based inks and paints
Pigment composition comprising an organic pigment and a combination of at least two normally water-soluble coloured compounds (dyes) of opposing charge, i.e. of at least one anionic and one...
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7056378 |
Method for producing vattable organic pigments
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...
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7041166 |
Manufacturing and conditioning of solid solution organic pigments
Organic solid solution pigments are prepared and conditioned by treating a mixture of their components, after synthesis but preferably without or with only partial drying, in a mixture of from 0 to...
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7033429 |
Method of producing low-dust pigment compositions
The present invention relates to a method of producing a low-dust pigment composition, which comprises suspending a filter cake obtained from preparation of the pigment, or a solid pigment, in...
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7029526 |
Process for making green pigment compositions useful for color filters and LCD's
The invention pertains to the field of green color filters and LCDs. It has been found that pigments with surprisingly improved coloristic, chemical and physical properties are obtained by...
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7008475 |
Water-based colorant preparations
The invention relates to aqueous colorant preparations containing A) between 0.1 and 50 wt. % of at least one organic and/or inorganic pigment and/or at least one organic colorant. B) between 0.01...
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6942724 |
Modified organic colorants and dispersions, and methods for their preparation
The present invention relates to methods of preparing modified organic colorant dispersions comprising the step of combining, in any order, i) an organic colorant; ii) an hydroxide reagent; and...
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6936097 |
Modified organic colorants and dispersions, and methods for their preparation
The present invention relates to methods of preparing modified organic colorant dispersions comprising the step of combining, in any order, i) an organic colorant; ii) an hydroxide reagent; and...
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6926768 |
Treatment of high performance pigments
A pigment's etheramine sulfonic acid salt is described. Also described is a method for enhancing the performance of a pigment composition containing an organic pigment, comprising enhancing the...
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6918958 |
Acid pigment dispersants and pigment preparations
The invention relates to pigment dispersants of the formula (I), and to pigment preparations including at least one organic pigment and at least one pigment disperant of the formula (I):
...
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6916367 |
Modified pigments and process for preparing modified pigments
Processes for preparing modified pigments are described. In one embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiol...
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6913642 |
Pigments having improved coloristic properties and process for their preparation
Substantially crystalline organic pigments characterized by small particle size and narrow particle size distribution.
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6911073 |
Process for preparing modified pigments
The present invention relates to a process for preparing a polymer-modified pigment comprising the step of: combining, in any order, at least one pigment having attached at least one nucleophilic...
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6902613 |
Preparation and use of nanosize pigment compositions
A mixture of an organic nanosize pigment comprising of from 50 to 99% by weight of the nanosize pigment and 1 to 50% by weight based of a low molecular weight naphthalene sulfonic acid formaldehyde...
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6896726 |
Surface-treated organic pigments
The present invention relates to surface-treated organic pigments, to a process for their preparation and to their use in colouring a high molecular weight organic material. Compared with untreated...
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6890380 |
Conditioning of organic pigments
Organic pigments are conditioned by treating them, after synthesis but preferably without or with only partial drying, in a mixture of from 1 to 30% by weight of a neutral, polar liquid having a...
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6881255 |
Pigment preparations
Pigment preparations comprising
a) at least one pigment, b) at least one polyethyleneimine which is alkoxylated, especially ethoxylated and propoxylated and/or butoxylated, and c) at least one...
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6869472 |
2,9-dichloroquinacridone pigment
A new high chroma, opaque gamma 2,9-dichloroquinacridone pigment specified by its particle shape and size and characterized by C.I.E color space values in masstone, and a process for its...
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6864371 |
Preparation of beta quinacridone pigments
A novel method for the preparation of a beta quinacridone pigment is described by the oxidation of 6,13-dihydroquinacridone in the presence of polyvinyl pyrrolidone, a catalyst and optionally a...
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6858073 |
Pigmented vitreous material
The present application relates to a process for the manufacture of pigmented vitreous materials, as well as to pigmented vitreous materials, characterized by the use of soluble pigment precursors...
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