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| Number | Title | Issue Date |
| 7763111 | 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... | 07/27/2010 |
| 7387672 | Oxidation-stable iron oxide pigments, process for preparing them and their use The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use. ... | 06/17/2008 |
| 7341626 | Pigment compositions consisting of organic and inorganic pigments A pigment composition containing one or more, organic yellow pigments selected from the group C.I. Pigment Yellow (213), Pigment Yellow (214) and disazo pigment of the formula (I) and containing one or more inorganic pigmen... | 03/11/2008 |
| 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 |
| 7258956 | Printing plates comprising modified pigment products The present invention discloses printing plates comprising a substrate and a radiation-absorptive layer, wherein the radiation-absorptive layer comprises at least one modified pigment product. The modified pigment product comprises a pigment having attached at least... | 08/21/2007 |
| 7238231 | Process for manufacturing zirconia-treated titanium dioxide pigments An improved process is described for manufacturing zirconia-treated titanium dioxide pigments, wherein the zirconia treatment is accomplished in the process of fluidizing a titanium dioxide filter or press cake and then drying the same, through the addition to the f... | 07/03/2007 |
| 7138011 | Surface treated pigments Inorganic pigments treated with at least one N,N,N-trialkyl quaternary amino acid inner salt possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated p... | 11/21/2006 |
| 7138010 | Amino phosphoryl treated titanium dioxide The invention is a pigment comprising titanium dioxide and an amino phosphoryl compound. The pigment of the invention imparts improved physical qualities, such as improved lacing resistance and dispersion, when incorporated into polymers. ... | 11/21/2006 |
| 7091262 | Particulate inorganic solids treated with organophosphinic compounds A treatment for particulate inorganic solids is provided. This treatment, which uses certain organophosphinic compounds, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these tr... | 08/15/2006 |
| 7056962 | Modified pigments having improved dispersing properties 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, ... | 06/06/2006 |
| 7011703 | Surface-treated pigments Inorganic pigments, having deposited on the pigment surface at least one alkenyl- or alkyl-substituted succinic anhydride and at least one organic polyol, possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties t... | 03/14/2006 |
| 6929889 | Modified pigment products, dispersions thereof, and compositions comprising the same The present invention relates to modified pigment products comprising a pigment having attached at least one organic group represented by the formula —X-Sp-Alk, wherein X, which is directly attached to the pigment, represents an arylene, heteroarylene, or alkylene... | 08/16/2005 |
| 6911116 | Cationically modified white pigments, their production and use Cationically modified white pigments (W) in particulate form, essentially consisting of a particulate inorganic white pigment (M) of a particle size in the range of 0,1 to 40 μm and an applied water soluble, cationic, crosslinked polymer (PA) containing ... | 06/28/2005 |
| 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 |
| 6784231 | Pigment, method for producing pigment, pigment dispersion, and electrostatic image developing powder toner A pigment having weak dispersion force to be readily dispersed in a medium to be colored from which an excellent yellow image having superior transparency can be produced. The pigment includes a compound having the same chemical formula as C.I. Pigment Yellow 180. T... | 08/31/2004 |
| 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 such as ammonium hydroxide. The instant invention also provides pigment... | 05/18/2004 |
| 6663851 | Surface-modified titanium dioxide A product obtained by treating surface-modified, pyrogenically produced titanium dioxide with at least one ammonium-functional silane, such as by spraying the pyrogenically produced titanium dioxide with the at least one silane, alone or in ethanol soluti... | 12/16/2003 |
| 6638349 | Surface treatments for pigments providing improved dispersibility and exhibiting biocidal activity A composition consisting of the reaction product of a halogenated carboxylic acid, an amine, and optionally a fatty acid. The composition has biocidal properties and enhances pigment dispersibility.... | 10/28/2003 |
| 6558464 | Very high solids TiO2 slurries The present invention discloses high solids slurries of anatase titanium dioxide pigment comprising greater than about 75% by weight of anatase TiO2 pigment dispersed in water. A process for producing the slurries of the present invention is di... | 05/06/2003 |
| 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 composite pigment can be produced by mixing a colorant disp... | 02/18/2003 |
| 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 resulting blend exhibits a well dispersed, stable coloration, incr... | 10/29/2002 |
| 6444313 | Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber A thermochromic acrylic synthetic fiber comprising an acrylonitrile polymer in which a thermochromic pigment composition with an average particle diameter of from 0.5 μm to 30 μm is dispersedly contained in an amount of from 0.5% by weight to 40% by wei... | 09/03/2002 |
| 6420437 | Titanium oxide colloidal sol and process for the preparation thereof A neutral titanium dioxide colloid sol having a high stability in a neutral range and capable of forming a colorless transparent coating even when dried at room temperature is produced by mixing an acid titanium dioxide sol comprising 50 to 100 parts by w... | 07/16/2002 |
| 6409815 | Surface-modified conductive pigment Surface-modified conductive pigment obtainable by partial coating of a conductive pigment with an organic modifying agent. The modifying agent is an organometallic compound of the elements silicon, tin, titanium, zirconium or aluminum. The pigment is prep... | 06/25/2002 |
| 6348092 | Surface treatments for pigments providing improved dispersibility and exhibiting biocidal activity A composition consisting of the reaction product of a halogenated carboxylic acid, an amine, and optionally a fatty acid. The composition has biocidal properties and enhances pigment dispersibility.... | 02/19/2002 |
| 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 |
| 6231662 | Surface treatments for titanium dioxide and other industrial pigments An additive for enhancing the performance of industrial pigments. The additive improves dispersibility and is the reaction product of an amine, a fatty amine, and a polybasic acid.... | 05/15/2001 |
| 6197104 | Very high solids TiO2 slurries The present invention discloses high solids slurries of anatase titanium dioxide pigment comprising greater than about 75% by weight of anatase TiO2 pigment dispersed in water. A process for producing the slurries of the present invention is di... | 03/06/2001 |
| 6176918 | Modified nacreous luster pigments for water paint systems Modified pearl luster pigments for waterborn coating systems, based on a platelet-form substrate coated with metal oxides and, located on the topmost metal oxide layer, a top layer consisting of at least two oxides and/or mixed oxides from the group consi... | 01/23/2001 |
| 6139617 | Titanium dioxide pigments There are provided titanium dioxide pigments characterized by improved gloss developing and dispersibility properties in surface coating vehicles and reduced dispersant requirements. Said titanium dioxide pigments comprise pigmentary titanium dioxide part... | 10/31/2000 |
| 6139610 | Hybrid pigment grade corrosion inhibitor compositions and procedures A corrosion-inhibiting composition for application to a metal substrate, such as steel, silver, copper or aluminum, includes a film-forming organic polymer component and a dispersed pigment phase of a stable unitary hybrid which contains organic and inorg... | 10/31/2000 |
| 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, leather and textile materials.... | 10/10/2000 |
| 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 R1, R2, X1, Y1 | 09/26/2000 |
| 6123762 | Low-dust, well dispersible granulates based on silicate fillers modified with organosilicon compounds The invention relates to granulates based on silicate fillers, the surface of which was modified with organosilicon compounds, a process for manufacturing the granulates by spraying a suspension of these fillers together with the organosilicon compounds i... | 09/26/2000 |
| 6103360 | High light reflectance and durable ceiling board coating A ceiling board coating composition includes water, a binder and a filler, said filler having large particles with an average particle size of a minimum of about 50 microns, medium particles with an average particle size in the range of from about 1.2 to ... | 08/15/2000 |
| 6068688 | Particle having an attached stable free radical and methods of making the same A modified particle is disclosed wherein a particle has an attached group having the formula: ##STR1## wherein Ar represents an aromatic group; R1 represents a bond, an arylene group, an alkylene ##STR2## wherein R4 is... | 05/30/2000 |
| 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 an additive comprising a vinylpyrrolidone polymer or copol... | 05/16/2000 |
| 6022404 | Surface-modified, pyrogenically produced mixed oxides, method of their production and use Surface-modified, pyrogenically produced mixed oxides which contain two or more components of the series SiO2, Al2 O3, TiO2, ZrO2, Fe2 O3, Nb2 O5, V2 ... | 02/08/2000 |
| 5910213 | Treated titanium dioxide A pigmentary material comprises particulate titanium dioxide the particles of which have been treated with a polymeric hindered amine stabiliser. The stabiliser is a polymer having a main chain substantially free of acidic groups and having hindered amine... | 06/08/1999 |
| 5908498 | Process for preparing an improved low-dusting, free-flowing pigment A process for preparing a low-dusting, free-flowing pigment which has not been subjected to any micronizing treatment comprising the steps of providing an inorganic pigment material; providing a source of water; forming a fine, well dispersed slurry of th... | 06/01/1999 |
