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| Number | Title | Issue Date |
| 7318861 | Effect pigment An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity. ... | 01/15/2008 |
| 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. % pigment. ... | 11/27/2007 |
| 7261770 | Compositions and methods comprising pigments and polyprotic dispersing agents In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine and (ii) a polyprotic acid, wherein the mole ratio of the... | 08/28/2007 |
| 7229490 | Water dispersible compositions containing natural hydrophilic water-insoluble pigments, methods of preparing same and their use Ready-to-use water dispersible pigment compositions containing water-insoluble, hydrophilic pigments are provided. The compositions comprise a stable dispersion of the pigment such as a porphyrin pigment, carmine, curcumin and a caratenoid in the form of bodies of a... | 06/12/2007 |
| 7189454 | Carbon coated high luster materials A platy pigment substrate having a carbon-containing coating thereon is provided wherein the coating comprises a pyrolyzed carbon-containing ionic species. The products of the present invention may be used in any application where pearlescent pigments have been used... | 03/13/2007 |
| 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 glycol ether having an average molar mass of between 250 and 1000 g/mol,... | 11/14/2006 |
| 7118622 | Organic dyes suitable for use in drugs and cosmetics laked onto a platy titanium dioxide pigment An unsupported platy titanium dioxide pigment containing an organic dye laked thereon. The dyed TiO2 pigment is useful to color cosmetic, food, and drug formulations. ... | 10/10/2006 |
| 7045007 | Effect pigment An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity. ... | 05/16/2006 |
| 7041421 | Laked azo red pigment and processes for preparation and use Disclosed is a red pigment compound containing a pigment represented by Formula I: having a certain Hue Angle and Apparent Strength. Also disclosed is a method of making a red pigment composition. Further disclos... | 05/09/2006 |
| 6989055 | Monoazo lake pigment composition and gravure ink using the same A monoazo lake pigment composition containing a monoazo lake pigment obtained from a laked pigment aqueous slurry prepared by conducting coupling of a diazo component obtained by diazotizing an aromatic amine having a soluble group and a coupler component and conduc... | 01/24/2006 |
| 6913640 | Single-phase mixed crystals of laked monoazo dyes Novel improved single-phase mixed crystals of monoazo dyes laked with alkaline earth metal cations and ammonium cations in a molar ratio of about 1:2 having a fine particle size and substantially better fastness properties than similar known products are excellently... | 07/05/2005 |
| 6913641 | Laked monoazo pigments based on naphtholsulfonic acids The invention relates to novel monoazo compounds of formula (1), wherein R represents H or Cl, M2+ represents Ca2+ or SR2+ and Y1=H and Y2=SO3− or Y1=SO3− | 07/05/2005 |
| 6902612 | Heat stable laked monoazo red pigment Disclosed is a red pigment represented by Formula I: having a unique X-ray diffraction pattern. Also disclosed is a red pigment composition containing the pigment represented by Formula I and a surfactant. Also disclos... | 06/07/2005 |
| 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 R1 represents a linear-chain, branched or cyclic aliphatic radical having 10 to 30—prefe... | 11/23/2004 |
| 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 mixtures thereof, and b... | 11/16/2004 |
| 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. ... | 11/02/2004 |
| 6740316 | Anhydrous pigment paste and its use in cosmetics The invention relates to an anhydrous pigmentary paste comprising: from 20 to 32% by volume of at least one solid pigment, with respect to the total volume of the pigmentary paste, a pigment dispersion medium containing at least one anhydrous solvent s... | 05/25/2004 |
| 6719839 | Water dispersible compositions containing natural hydrophilic water-insoluble pigments, methods of preparing same and their use Ready-to-use water dispersible pigment compositions containing waer-insoluble, hydrophilic pigments are provided. The compositions comprise a stable dispersion of the pigment such as a porphyrin pigment, carmine, curcumin and a carotenoid in the form of bodies of an... | 04/13/2004 |
| 6685961 | Colored gelatin-based formulations and method The present invention is a process for coloring gelatin-based formulations involving adding a saturated fatty acid to the gelatin-based formulation along with lake pigment, whereby the saturated fatty acid is added in an amount so as to prevent cross-link... | 02/03/2004 |
| 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 ionically modified phenol-styrene-polyglycol ether, b1) a condensatio... | 07/22/2003 |
| 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 comb-branched copolymer dispersant wherein the polyether portion o... | 06/24/2003 |
| 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 comprises the steps of: dispersing the pigment in a solvent to pre... | 05/13/2003 |
| 6537933 | Silk cloths for protecting affected parts Silk clothes for protecting affected parts (incised wound, burn, tumor, bedsore, etc.) which also contribute to the prevention of suppurating. These clothes are composed of a knitted woven silk fabric or non-woven silk fabric (silk floss, etc.) containing... | 03/25/2003 |
| 6521036 | OPTICALLY VARIABLE PIGMENTS PROVIDING A COLOR SHIFT BETWEEN TWO DISTINCT COLORS, COATING COMPOSITION COMPRISING THE SAME, METHOD FOR PRODUCING THE SAME AND SUBSTRATE COATED WITH THE COATING COMPOSITION The invention relates to optically variable pigments (10) having a color shift between two distinct colours of any of the known designs. The pigments having incorporated a totally reflecting layer made by physical vapour deposition from aluminum alloy (11... | 02/18/2003 |
| 6468340 | Laked dye solubilization with complexing agent An inkjet ink composition having good stability which is an aqueous dispersion and/or solution of large particles of water soluble pigments derived from laked dyes, the water solubilizing groups on the surface of the laked dyes being exposed by removing s... | 10/22/2002 |
| 6440206 | Sorbitan ester treated pigments for plastics applications The present invention is directed to a composition comprising a sorbitan ester of the formula I ##STR1## and a monoazo pigment. The present invention further encompasses a process for its preparation and its use as well as the use of the sorbitan ester I ... | 08/27/2002 |
| 6387170 | Heat stable orange laked monoazo pigment An orange laked monoazo pigment has the following formula (I): ##STR1## wherein M is an alkaline metal selected from the group consisting of calcium, barium, strontium, magnesium and manganese.... | 05/14/2002 |
| 6375733 | Heat stable monoazo magenta pigment compositions 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 w... | 04/23/2002 |
| 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 dispersant has core and arm star-type architecture, and is prepared... | 01/08/2002 |
| 6294013 | Polysaccharide pigment dispersions An aqueous pigment dispersion containing at least one FD&C and/or D&C pigment dispersed in water and a polysaccharide resin optionally in combination with a styrene-acrylic resin and ethylenediaminetetraacetic acid. The dispersion offers excellent viscosi... | 09/25/2001 |
| 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 compound or a sulfonated organic pigment derivative obtained... | 07/04/2000 |
| 6051060 | Method of making pigment with increased hydrophilic properties A method for making coated pigment particles by forming a suspension of the desired pigment particles in a medium that also comprises a polymer characterized by having hydrophobic moieties on the polymer backbone and ionic moieties that are present on, or... | 04/18/2000 |
| 6037000 | Dye migration The present invention is to a process for producing a matrix particle of a colored lake or dye which matrix reduces the leeching or bleeding of the colored lake or dye into the surrounding medium. The present inventive process is particularly useful in to... | 03/14/2000 |
| 6007612 | Pigment compositions The present invention provides the use of a resinated pigment in which from 10 to 100% of the resinated proportion of the product is a resin ester, as colourant in a lithographic printing ink.... | 12/28/1999 |
| 6001167 | Pigment compositions Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein each R is independently a hydrocarbyl, hydroxy, hydrocarbyloxy, carboxylic acid, carboxylic acid ester, carboxylic acid amide, sulfonic ac... | 12/14/1999 |
| 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 diameter, a process for its preparation as well as its use as ... | 10/19/1999 |
| 5919915 | Azo pyrazolone pigments An azo pyrazolone compound of the formula: ##STR1## wherein Z represents a substituent selected from Cl, Br, F, NO2, SO2 R, CO2 R, NHSO2 R1 and NHCOR1 in which R and R1 are ... | 07/06/1999 |
| 5885342 | Blended nacreous pigments, colorants and adjuvants Colored lustrous pigments of superior quality are prepared by dry blending a metal oxide-coated mica nacreous pigment and a colorant lake with a blend adjuvant. The resulting blend exhibits a well dispersed, stable coloration, increased hydrophobicity and... | 03/23/1999 |
| 5882394 | Aqueous pigment paste for offset ink, process for producing the paste, and use thereof The present invention relates to a aqueous pigment paste for an offset ink, which paste is suitable for producing an offset ink by a flushing method, a process for the production of the aqueous pigment paste, and an offset ink obtained by a flushing metho... | 03/16/1999 |
| 5855662 | Aqueous pigment preparations Aqueous pigment preparations comprising a) 10 to 80% by weight, in particular 20 to 60% by weight, of a pigment, b) 0.1 to 20% by weight, in particular 0.1 to 15% by weight, of an oxyalkylation product which is obtained by addition of optionally substituted st... | 01/05/1999 |