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6849116 |
Quinophthalone-derivative based crystallization modifiers
Quinophthalone derivatives have the general formula I
where
R 1 , R 2 , R 3 and R 5 are independently hydrogen, halogen or C 1 -C 4 -alkyl; R 4 is —SO 3 H, —SO 3 + N + R 6 R 7 R 8 R 9...
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6835242 |
Conditioning of organic pigments
Organic pigments are conditioned by introducing a liquid prepigment suspension into a miniaturized continuous reactor and thermally treating therein.
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6827775 |
Rheology improvers and pigment compositions having improved rheology
The invention relates to a compound of the 1-aminoanthraquinone, anthanthrone, anthrapyrimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone,...
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6821335 |
Phthalic acid imides as synergists for improving the properties of aqueous pigment preparations
The invention relates to pigment preparations containing (a) at least one organic or inorganic pigment; (b) at least one cyclic imide of general formula (1) wherein R 1 represents a linear-chain,...
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6818053 |
Process for producing quinacridone pigment microcrystals
The method for preparation quinacridone pigment nanocrystals with sub micrometer to nanometer in average size comprising, supplying supercritical or semi-critical liquid, which dissolves...
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6818050 |
Lacquers and paints and coating material systems
Paint and coating material system comprising a) at least one solids component comprising at least one organic or inorganic white, black or chromatic pigment, organic or inorganic fillers, or...
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6811601 |
Pigment preparations comprising alkoxylated polyethylenimine
Pigment preparations comprising A) at least one organic or inorganic pigment and B) at least one ethoxylated and propoxylated and/or butoxylated polyethyleneimine.
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6800127 |
Pigment preparations
The present invention relates to pigment preparations comprising polyamide particles with an average particle size of below 50 μm and a pigment of an average particle size below 0.2 μm. The...
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6786965 |
Organic pigment dispersion for coloring building materials
An aqueous organic pigment dispersion used to integrally color concrete and other building materials which includes: alkali metal silica particles as a binder; organic pigment; water; and...
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6746524 |
Process for producing sintered color pencil lead
Disclosed is a process for producing a sintered color pencil lead characterized by pigmenting a white or light-colored porous sintered pencil lead with an organic pigment by treating said porous...
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6736892 |
Pigment dispersions containing styrenated and sulfated phenol alkoxylates
The present invention provides sulfated and carboxymethylated surfactants and dispersants produced by reacting a styrenated phenol alkoxylate with sulfamic acid and then neutralizing with a base...
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6726762 |
Finely divided pigments and coloring compositions
A finely divided pigment is formed of an aggregate of primary particles. A number of primary particles of not greater than 0.1 μm in particle size is at least 95% of an entire number of the...
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6723161 |
Method for oxidizing organic pigment
A method for oxidizing an organic pigment including dispersing the pigment in an aqueous medium and exposing the dispersed pigment to ultrasonic radiation, whereby the exposed pigment exhibits from...
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6709507 |
Method of producing stabilized organic pigment particles and device therefor
A method of producing self dispersible organic pigment particles stabilized by the method. The method includes modifying organic pigment particles and then contacting the surface modified particles...
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RE38469 |
Pigments
A process for the manufacture of a pigment concentrate which comprises dispersing dry organic pigment granules in an organic vehicle.
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6641656 |
Dispersions comprising modified pigments
The present invention describes a dispersion comprising a vehicle and a modified pigment. The modified pigment has, when measured in an aqueous medium, a zeta potential of 0.0 mV at a pH of between...
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6626990 |
Use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments
The present invention relates to a process for producing alpha, gamma-I, gamma-II and gamma-III crystal modifications of quinacridone and transparent quinacridone pigments including the solid...
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6620235 |
Pigment compositions and process of shading
Compositions comprising a) a mixture of i) C.I. Pigment Violet 19 together with either C.I. Pigment Blue 15 or C.I. Pigment Blue 60, or ii) C.I. Pigment Red 177 together with either C.I. Pigment...
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6599356 |
Method for manufacturing pigment dispersed liquid, and pigment dispersed liquid, and ink for ink-jet printer recording using said pigment dispersed liquid
A method for manufacturing a pigment dispersed liquid, comprising at least: Step A of introducing a hydrophilic dispersibility-imparting group directly and/or via another atomic group to the...
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6596073 |
Solid pigment preparations
The invention relates to a solid pigment composition comprising a) at least one pigment, b) at least one compound selected from the group consisting of b0) a phenol-styrene-polyglycol ether or an...
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6596071 |
Organic and inorganic composite pigments, and paint and resin composition using the same
Organic and inorganic composite pigments having an average particle diameter of 0.01 to 10.0 μm composed of a white inorganic particle, an organosilane compound obtained from alkoxysilanes, or...
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6589330 |
Halogen-free green pigment composition
Disclosed herein is a green pigment composition comprising (a) a green pigment comprising a mixture of fine particles of a halogen-free blue pigment and fine particles of a halogen-free yellow...
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6582510 |
Use of comb-branched copolymers as pigment dispersants
A pigment dispersion suitable for use in the manufacture of pigmented coating compositions is provided. The pigment dispersion comprises a) pigment, b) carrier, and c) an acrylic/polyether...
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6582508 |
Process for fine division of organic pigments
The invention provides a process for the fine division of pigments which comprises spraying a coarsely crystalline crude pigment and/or a poorly dispersible prepigment in suspension form through...
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6562117 |
Process for producing pigment dispersion
There is provided a method for regulating the average particle diameter of a pigment for an ink composition possessing excellent anti-clogging properties and ejection stability. The method...
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6544321 |
Nanoscopic pigments
Disclosed are pigment particles prepared by a process which comprises (a) preparing a solution of a polyalkylene oxide compound in water; (b) preparing a solution of a cationic dye in water; (c)...
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6544325 |
Pigmentary copper phthalocyanine solid solution and transparent dispersion comprising it
The present invention relates to pigmentary solid solutions comprising copper phthalocyanine (Pigment Blue 15; C.I. 74160) as host and other blue to violet pigments as guests. Preferred hosts are...
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6537362 |
Polyphosphoric acid swelling of organic pigments
A method of conditioning an organic crude pigment by treating, under high shear, 1 part by weight of the crude pigment and about 0.5 to 1.9 parts by weight of polyphosphoric acid or polyphosphoric...
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6530989 |
Methods for production of organic pigments for printing inks
A process for the preparation of an organic pigment dispersion is disclosed and consists of dispersing a dried soft-textured organic pigment in a dispersion vehicle, wherein the dispersion vehicle...
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6524383 |
Method for manufacturing pigment dispersion, pigment dispersion obtained by this method, and ink jet recording ink using same
Disclosed is a pigment dispersion that can be used for an ink jet printing-use pigment ink that affords stable printing characteristics and has excellent storage stability in an ink jet printer...
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6521038 |
Near-infrared reflecting composite pigments
A near-infrared reflecting composite pigment comprises a near-infrared non-absorbing colorant and a white pigment coated with the near-infrared non-absorbing pigment. The near-infrared reflecting...
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6506245 |
Ink jet inks, inks, and other compositions containing colored pigments
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...
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6503317 |
Dye based aqueous pigment dispersions
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...
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6494943 |
Ink jet inks, inks, and other compositions containing colored pigments
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...
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6494949 |
Process for the preparation of beta-phase quinacridone
A process for producing beta-phase quinacridone by (a) reacting 2,5-dianilino-terephthalic acid with polyphosphoric acid in the presence of 2,5-dianisidino-terephthalic acid at a reaction...
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6494948 |
Preparation of quinacridone pigment compositions
This invention relates to a process for preparing quinacridone pigment compositions by (a) heating a reaction mixture containing (i) 2,5-dianilinoterephthalic acid or...
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6485558 |
Process for the preparation of pigment granules
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...
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6478866 |
Aqueous pigment preparations
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...
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6471764 |
Treatment of high performance pigments with etheramine dispersing salts
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...
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6471765 |
Dispersant compositions improving the heat stability of transparent pigments
The present invention relates to compositions comprising a sulfonated diketopyrrolopyrrole and a Mannich-type substituted dihydroquinacridone to produce colored materials having improved stability...
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6471762 |
Bonded metal-hydroxide-organic composite polymer films on lamellar pigments
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...
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6468341 |
Pigment compositions, production process thereof, colorants, and colored articles
A pigment composition comprises a wet-ground pigment mixture of (A) ε-copper phthalocyanine and (B) at least one pigment selected from a group consisting of condensed polycyclic pigments and azo...
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6451103 |
Self-dispersible aqueous pigment dispersion
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...
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6440207 |
Method for preparing organic pigments
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...
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6436182 |
Process for producing highly concentrated pigment presscakes
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...
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6432194 |
Method of attaching a group to a pigment
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...
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6423132 |
Pigment granulation
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...
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6413309 |
Pigment preparations comprising two or more perylene compounds
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...
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6410619 |
Method for conditioning organic pigments
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,...
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6406533 |
6,13-dihydroquinacridone derivatives
A 6,13-dihydroquinacridone derivative of formula I: (MO 3 S) m —Q—[CH 2 —(X)—(Y) n ] o (I) wherein: Q represents a 6,13-dihydroquinacridone moiety of formula II; A and B each...
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