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| Number | Title | Issue Date |
| 8083848 | Compositions comprising fine sedimentary kaolin and methods for preparing same Disclosed herein are kaolin compositions, such as beneficiated fine sedimentary kaolin compositions. The beneficiated fine sedimentary kaolins may be obtained from the upper bed of the Rio Capim Kaolin deposit. The compositions may have at least one property chosen ... | 12/27/2011 |
| 8016936 | Methods of calcining particulate material Disclosed herein is a method of calcining particulate material, such as kaolin. The method comprises providing a feed mixture comprising a particulate material, such as hydrous kaolin, wherein at least a portion of the particulate feed is coated with a liquid fuel. ... | 09/13/2011 |
| 7854801 | Uses of high mullite index calcined kaolin Disclosed are methods of making calcined kaolin having a high mullite content involving heating to certain temperatures. Also disclosed are systems for making the calcined kaolin having a high mullite content and polymer composites containing the calcined kaolin hav... | 12/21/2010 |
| 7758690 | Paper coating pigments A coating composition for paper and other substrates, particularly mechanical papers such as lightweight coated (LWC) paper, comprises an aqueous suspension of a particulate pigment together with a binder, wherein the particulate pigment comprises: (a) a first compo... | 07/20/2010 |
| 7727324 | Compositions comprising kaolin having nanosize dimensions Disclosed herein is a kaolin composition having nanosize dimensions. At least about 75% of the kaolin particles by weight have an equivalent spherical diameter (esd) of less than about 0.25 μm. The kaolin can also have a particle size distribution wherein at least ... | 06/01/2010 |
| 7628850 | Method of producing metakaolin A process for producing high grade metakaolin directly from kaolinzed sands ore body. In one embodiment, a source of kaolin ore is reduced in the size to a size distribution of between −2 inches and 10 mesh. The ore is then dried in a dryer at a temperature of not... | 12/08/2009 |
| 7597755 | Kaolin pigment products A pigment product for use in a coating composition to provide a gloss coating on paper, the pigment product comprising a processed particulate kaolin having a particle size distribution such that at least about 80% by weight of the particles have an equivalent spher... | 10/06/2009 |
| 7442281 | Kaolin products and their production There is provided a method of producing a kaolin particulate material suitable for use as an improved super-calendered filler. This method includes: (a) preparing an aqueous feed suspension of kaolin; (b) treating the kaolin of the feed suspension by attrition grind... | 10/28/2008 |
| 7419540 | Swellable phyllosilicates A swellable layer silicate is described based on smectite or sepiolite/palygorskite for use in media containing di- or polyvalent cations that reduce swellability, characterized by a swelling volume of about 5 to 50 mL, measured by addition of 2 g layer silicate (ai... | 09/02/2008 |
| 7413601 | Kaolin products and their use The present invention relates to a particulate kaolin suitable for use as a filler material in compositions for making uncoated paper, the kaolin having a mean particle size ranging from 0.7 μm to 3 μm and a shape factor of at least 60. The invention also relates ... | 08/19/2008 |
| 7377975 | Pigment for use in inkjet recording medium coatings and methods Pigment suitable for use in coating compositions for inkjet recording media. Surfaces of an inorganic particulate are interacted with a water-soluble polyvalent metal salt in an aqueous medium. The treated particle surfaces have a significant cationic surface charge... | 05/27/2008 |
| 7339000 | Method and apparatus for producing an aqueous paint composition from a plurality of premixed compositions The present invention is directed to the provision of premixed aqueous compositions which are used to provide a paint composition of varying finish characteristics at the point of sale. Thus, the merchant distributing the paint composition made from the subject prem... | 03/04/2008 |
| 7335639 | IGF-1 composition and its use A highly concentrated, low salt-containing, biologically active syrup form of IGF-I or variant thereof and methods for its preparation are provided. This novel syrup form of IGF-I has an IGF-I concentration of at least about 250 mg/ml, a density of about 1.0 g/ml to... | 02/26/2008 |
| 7306668 | Kaolin pigment having high brightness and narrow particle size distribution and method of preparation therefor The present invention provides high brightness kaolins exhibiting a Brightness (GE) of at least about 90.0. The hydrous kaolin pigments of the present invention may also have, inter alia, a steepness index (d30/d70×100) of at least about 39 an... | 12/11/2007 |
| 7303654 | Cellulosic product and process for its production The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. T... | 12/04/2007 |
| 7291665 | Emulsion polymerization methods involving lightly modified clay and compositions comprising same Processes for utilizing various emulsion polymerization procedures for preparing aqueous nanocomposite dispersions are disclosed. The disclosed processes include both in-situ polymerizations in the presence of at least partially exfoliated, lightly modified clays as... | 11/06/2007 |
| 7285182 | Composition for surface treatment of paper A composition for surface treatment of paper which includes a nanoparticle fraction, and a carrier fraction for detaining the nanoparticles in the surface layer. The carrier fraction includes plate-like pigment particles, and at least one binder. The invention also ... | 10/23/2007 |
| 7279037 | Process and products of chinese kaolin Disclosed are methods of processing Chinese kaolin involving providing Chinese kaolin having a desired powder size, delaminating the Chinese kaolin, pulverizing the delaminated Chinese kaolin at least two times, and heating the at least twice pulverized Chinese kaol... | 10/09/2007 |
| 7276634 | Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodium hydroxide is added to the soluti... | 10/02/2007 |
| 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 |
| 7259203 | Aqueous nanocomposite dispersions: processes, compositions, and uses thereof Processes for utilizing various emulsion polymerization procedures for preparing aqueous nanocomposite dispersions are disclosed. The disclosed processes include both in-situ polymerizations in the presence of at least partially exfoliated unmodified clays as well a... | 08/21/2007 |
| 7258733 | Viscosity stable smectite clay slurries A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is usef... | 08/21/2007 |
| 7258732 | Stabilized slurry composition and method of making the same The present invention provides a high solids mineral slurry having long term stability and a method for producing the same. Specifically, the present invention provides a talc slurry having a solids content of up to 65% and a stability against sedimentation for up t... | 08/21/2007 |
| 7214264 | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. T... | 05/08/2007 |
| 7208039 | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. T... | 04/24/2007 |
| 7208540 | Process for curing aminoplast resins Aminoplast resins are cured using inorganic particles as curing agents. The inorganic particles have a laminated structure and include interlamellarly exchangeable cations such as alkali cations, alkaline-earth cations, aluminum cations, iron cations and/or manganes... | 04/24/2007 |
| 7201826 | High performance natural zeolite microparticle retention aid for papermaking A microparticle retention aid for use in papermaking containing a high performance purified natural zeolite pigment is disclosed. Use of the pigment facilitates manufacture of papers with improved quality and economics. When used as filler, the novel zeolite pigment... | 04/10/2007 |
| 7172651 | Pigment for use in inkjet recording medium coatings and methods Pigment suitable for use in coating compositions for inkjet recording media. Surfaces of an inorganic particulate are interacted with a water-soluble polyvalent metal salt in an aqueous medium. The treated particle surfaces have a significant cationic surface charge... | 02/06/2007 |
| 7169261 | Silica-based sols An aqueous sol containing silica-based particles which has an S-value within the range of from 10 to 45%, a viscosity within the range of from 5 to 40 cP, and a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range o... | 01/30/2007 |
| 7169348 | Method of making metal oxide nanoparticles in an exfoliated silicate framework A method of producing metal oxide nanoparticles in an exfoliated silicate framework by forming an aqueous exfoliated silicate suspension by mixing a layered clay into water until clear. To which is added an acidic hydrated metal species precursor solution, formed by... | 01/30/2007 |
| 7157539 | Polymerizable compound, polymer compound and block polymer compound, and composition, image-forming method and image-forming apparatus using the same A composition containing a polymer compound and medium being a solvent or a binder resin, wherein the polymer compound comprises monomer units represented by the general formula (1): wherein A is a straight-chain... | 01/02/2007 |
| 7125916 | Method for producing nanosilica plates The present invention relates to an exfoliating agent and to a process for producing random form of nanoscale silicate plates. Two types of exfoliating agents are applied in the present invention, which respectively have the formula: | 10/24/2006 |
| 7125432 | Method for making precipitated silica or silicate compositions and products thereof New methods of producing narrower particle size distribution precipitated silica and/or silicate materials are provided. Such a method permits a significant reduction in manufacturing costs through the utilization of more efficient drying/evaporation components, in ... | 10/24/2006 |
| 7122080 | Integrated process for simultaneous beneficiation, leaching, and dewatering of kaolin clay suspension The present invention provides an improved method of beneficiating and dewatering kaolin clays. The product of the improved process is a brightened, dewatered kaolin, suitable for use in pigments and paper coating compositions. The improved beneficiation process pro... | 10/17/2006 |
| 7083665 | Highlightable marking composition, method of highlighting the same, highlightable marking composition kit, and highlighted marking composition complex A highlightable ink including a colored pigment and an eradicable colorant; a kit including the highlightable ink and an eradicator solution; an ink complex including a colorless or substantially colorless eradicable dye selected from the group consisting of diarylm... | 08/01/2006 |
| 7052541 | Color compositions The present invention includes a paint or coating composition comprising an organic pigment or dye complexed to the surface of a layered or fibrous inorganic clay. A wide variety of paint colors can be obtained by varying the pH during the preparation as well as by ... | 05/30/2006 |
| 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 |
| 7041306 | Insect pest-repellent film, insect pest-repellent paint and method for producing the same Insects come into lighting fixtures, and enormous efforts are expended to clean the interior of a glove. Here is provided a repellent paint, which prevents this effect. The repellent paint is characterized in that it has at least cyclopropane carboxylate as a... | 05/09/2006 |
| 7022299 | Exfoliative clay and derivative thereof and method for producing the same The present invention discloses an exfoliative clay and a derivative thereof and a method for producing the same. The exfoliative clay is formed by emulsion exfoliating an inorganic layered silicate clay with an amphibious intercalating agent by powerfully stirring ... | 04/04/2006 |
| 7014893 | Support material for recording layers A support material comprises a raw paper that may be coated on at least one side with a synthetic resin, and the raw paper or the resin coating on the raw paper is provided at least on the front side with a pigment layer wherein the pigment layer contains at least a... | 03/21/2006 |
