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| Number | Title | Issue Date |
| 7758688 | Unusually narrow particle size distribution calcined kaolins The present invention relates to a composition comprising calcined kaolin having a narrow particle size distribution. The composition can have many uses, such as fillers or extenders in paint, plastics, polymers, papermaking, and coating compositions. More generally... | 07/20/2010 |
| 7476272 | Aluminum trihydrate containing slurries The present invention relates to Aluminum trihydrate slurries comprising aluminum trihydrate particles, an acrylic dispersant, citric acid, synthetic hectorite clay, optionally a compound to adjust pH, a biocide and water. These slurries may be mixed with titanium d... | 01/13/2009 |
| 7410629 | Method of preparation for carbon nanotube material The present invention provides a method for preparing a carbon nanotube material. In the present invention, a mixture of polyolefin and modified montmorillonite is used as the carbon source. Under the action of a catalyst, a carbon nanotube is synthesized in air. Th... | 08/12/2008 |
| 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 |
| 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 |
| 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 |
| 7066998 | Coatings for modifying hard surfaces and processes for applying the same Materials for coating, coating compositions, methods and articles of manufacture comprising a nanoparticle system or employing the same to impart surface modifying benefits for all types of hard surfaces are disclosed. In some embodiments, dispersement of nanopartic... | 06/27/2006 |
| 7029524 | Water-based spray marking composition A water-based, aerosol marking composition that adheres to a variety of surfaces but is removable by mechanical rubbing with a dry cloth or by washing with water is provided. The composition comprises 10 to 50% by weight water; 5 to 50% by weight of a solvent select... | 04/18/2006 |
| 6939406 | Apparatus for creating unique random images An apparatus for creating a random image is disclosed. The apparatus has a first support member with a hanging applicator member movably connected thereto. The hanging applicator is provided with at least one reservoir of material to be applied to a substrate. The r... | 09/06/2005 |
| 6833025 | Coating composition for a paper and paper coated therewith Coating composition comprising mineral pigment, for creating a matt or silk coated paper with decreased ink scuff tendency. The coating composition also comprises organic particles, which particles in an amount of 0.5-9.5 weight-% calculated on said mineral pigment,... | 12/21/2004 |
| 6811599 | Biodegradable thermoplastic material A biodegradable thermoplastic material comprising a natural polymer, a plasticizer and an exfoliated clay having a layered structure and a cation exchange capacity of from 30-250 milliequivalents per 100 grams and a process of preparing a biodegradable thermoplastic... | 11/02/2004 |
| 6689204 | Roadbed stabilization Roadbed material is stabilized by the addition of a small amount of potassium formate, preferably together with a water-soluble polymer which is preferably a cationic polymer.... | 02/10/2004 |
| 6676743 | Lightweight clay and manufacturing method thereof The present invention provides a lightweight clay which can be easily molded into a given shape, exhibits proper lightweight characteristics and storing characteristics, and can be manufactured at a low cost, and a manufacturing method thereof. In such a ... | 01/13/2004 |
| 6649684 | Chemically treated fillers and polymeric compositions containing same Described are fillers, e.g., inorganic oxides, that have been chemically treated to have a carbon content of greater than 1 weight percent, a mercapto content of at least 0.15 weight percent, a Silane Conversion Index of at least 0.3 and a Standard Reinfo... | 11/18/2003 |
| 6610136 | Pigments for ink jet paper Aggregated mineral pigments (such as kaolin clay pigments) having a high surface area and useful in coating and filling compositions for ink jet printing media are manufactured by dry grinding an unground mineral composition starting material and then opt... | 08/26/2003 |
| 6602341 | Treating kaolinitic clays A method of treating a kaolinitic clay which is intended for use as an ingredient in a ceramic composition which method comprises the steps of: (a) mixing with the kaolinitic clay from 0.1% to 15.0% by weight, based on the dry weight of the kaolinitic clay, of... | 08/05/2003 |
| 6585822 | Kaolin clay glossing pigment and preparation thereof Novel nanosized kaolin clay particles are prepared by agitating a fine particle size fraction of kaolin clay in a Netzsch mill until the particle size is reduced, aspect ratio is decreased and surface area is increased. The ultrafine kaolin particles are ... | 07/01/2003 |
| 6478865 | High surface area aggregated pigments Aggregated mineral pigments (such as kaolin clay pigments) having a high surface area and useful in coating compositions for ink jet printing media are manufactured by dry grinding an unground mineral composition starting material and then optionally acid... | 11/12/2002 |
| 6440209 | Composite pigments comprising in-situ precipitated metal carbonate crystals Composite pigments comprising particles of silicate or oxide minerals having deposited thereon a multiplicity of particles of a metal carbonate as a result of in-situ precipitation.... | 08/27/2002 |
| 6346145 | Paints containing low sheen opacifying pigments obtained by flux calcination of kaolin clay Flux calcined kaolin clay especially useful as a pigment for low sheen paints is obtained by mixing hydrous kaolin with an aqueous solution of alkaline flux, spray drying, pulverizing, calcining and repulverizing.... | 02/12/2002 |
| 6342560 | Chemically modified fillers and polymeric compositions containing same Described are fillers, e.g., inorganic oxides, that have been modified to have a carbon content of greater than 1 weight percent, a sulfur content of greater than 0.1 weight percent, a Silane Conversion Index of at least 0.3 and a Standard Tensile Stress ... | 01/29/2002 |
| 6340385 | Clay-containing mixture of dry solids to be used in forming a moisture resistant gel and method for treating a surface A clay-containing mixture of dry solids to be used in forming a moisture-resistant gel, and a method for directly forming a moisture-resistant gel on a surface to be treated, using such a mixture. The present invention furthermore relates to the use of su... | 01/22/2002 |
| 6312511 | Kaolin clays and methods of making and using same High brightness kaolin pigments and methods of making high brightness kaolin pigments are provided. Both delaminated and nondelaminated clays are provided having typical brightness of 87 or higher. The pigments have high brightness and good opacity, provi... | 11/06/2001 |
| 6270564 | Process for the bleaching of pigments The invention relates to a process for the bleaching of a mineral pigment or a synthetic pigment, in which process the pigment to be bleached is contacted with a solution which contains peracetic acid in order to obtain a pigment with a raised degree of b... | 08/07/2001 |
| 6197105 | Hydrous clay slurry mixture containing a silane-treated clay An effective production method for silane-treated clays having exceptional reinforcing effects with respect to rubber, and compositions using these silane-treated clays are offered. With the silane-treated clay production method, a functional silane is pr... | 03/06/2001 |
| 6156118 | Filler for use in paper manufacture and method for producing it The invention relates to a filler for use in paper manufacture, said filler containing pigment and noil produced from cellulose fibre and/or mechanical pulp fibre by refining. According to the invention, the pigment has been mixed with noil fibrils, to be... | 12/05/2000 |
| 6136086 | Low sheen opacifying pigments and manufacture thereof by calcination of kaolin clay Flux calcined kaolin clay especially useful as a pigment for low sheen paints is obtained by mixing hydrous kaolin with an aqueous solution of alkaline flux, spray drying, pulverizing, calcining and repulverizing.... | 10/24/2000 |
| 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 |
| 6074474 | Multi-component pigment slurry and method of making the same A multi-component pigment slurry which comprises at least 50% solids. The slurry is formulated to be admixed into paint and coating compositions to promote TiO2 extension. The slurry includes a structured pigment, a coarse particle size pigment... | 06/13/2000 |
| 6074473 | Low viscosity, high solids content slurry The present invention provides a high solids slurry and a method for producing the same. Specifically, the present invention provides a talc slurry having a solids content of at least about 58% and a viscosity of less than about 500 centipoise. The talc s... | 06/13/2000 |
| 6036765 | Organoclay compositions and method of preparation An organoclay composition comprising a mineral clay mixture which has been treated with an alkyl quaternary ammonium salt said mixture comprising: mineral clay (a) comprising 50 to 95 wt. %, based on the weight of the mineral clay mixture, of a mineral cl... | 03/14/2000 |
| 6033466 | Pigment and pigment ink by applying the pigment The present invention provides a pigment ink which can be produced through a simplified procedure and enables coloring as good as a dye ink. The pigment ink mainly consists of an intercalation compound such as a mineral of the montmorrilonite group and th... | 03/07/2000 |
| 5997626 | Low abrasion calcined kaolin pigments and enhanced filtration method A method for reducing the abrasion of a silica-containing calcined kaolin pigment by the controlled leaching of silica from the pigment, preferably by the use of a caustic solution to dissolve the silica out of the calcined kaolin. In another aspect of th... | 12/07/1999 |
| 5997625 | Coating pigment for ink-jet printing A coating pigment composition comprising a hydrous clay, a caustic leached calcined clay, and a porous mineral provides a coating having excellent balance of color intensity and color definition characteristics when printed on by multicolored inks. The pi... | 12/07/1999 |
| 5989331 | TiO2 slurry stabilization A stable aqueous pigment slurry and a process for preparing same. The slurry contains about 50 to 90 wt. %, based on the weight of the slurry, of a pigment such as titanium dioxide and about 0.2 to 3.0 wt. %, based on the weight of the slurry, of a smecti... | 11/23/1999 |
| 5882396 | Pigments for paper coating compositions An inorganic particulate material suitable for use as a pigment material in a paper coating composition has a particle size distribution which when represented as a graph of percentage of weight of particles having an equivalent spherical diameter (esd) o... | 03/16/1999 |
| 5871846 | Silane-treated clay production method, silane-treated clay and composition containing same An effective production method for silane-treated clays having exceptional reinforcing effects with respect to rubber, and compositions using these silane-treated clays are offered. With the silane-treated clay production method, a functional silane is pr... | 02/16/1999 |
| 5846309 | Coarse particle size kaolin clay and method A coarse particle kaolin clay is provided having an average Stokes equivalent particle diameter of about 4.5-6.0 microns, a BET surface area of about 8-11 m2 /g, and preferably having a median Malvern particle size of about 9.0-10.5 microns as ... | 12/08/1998 |
| 5837049 | Treated inorganic solids A treated inorganic solid comprises particulate inorganic material the particles of which are coated with an alkylphosphonic acid or ester thereof, the alkylphosphonic acid containing 6 to 22 carbon atoms. The particulate material is usually a pigment, ex... | 11/17/1998 |
| 5780376 | Organoclay compositions Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and mixture of a quaternary ammonium compound and a chain transfer agent which is a... | 07/14/1998 |
