Class / Patent application number | Description | Number of patent applications / Date published |
106690000 | Phosphate based cement | 31 |
20080236450 | PHOTOCATALYTIC GRANULAR MIXTURE FOR MORTAR AND CONCRETE AND ITS USE - The photocatalytic granular mixture for mortar and concrete includes a photocatalyst in the form of at least two granular classes with different B.E.T. specific surfaces. It has a photocatalytic activity greater than that of a monodisperse photocatalyst with a single range of B.E.T. specific surface, and thus permits, in association with a conventional hydraulic binder, to obtain construction and repair materials whose aptitude for self cleaning, for the reduction of odors, and for the depollution of ambient air, is considerably improved. | 10-02-2008 |
20080302276 | VERY FAST SETTING CEMENTITIOUS COMPOSITION WITH HIGH EARLY-AGE COMPRESSIVE STRENGTH - A method of making a rapid setting composition for cement boards is disclosed. Compositions including portland cement, fly ash, gypsum, alkanolamine and phosphate are disclosed. A synergistic interaction between the alkanolamine and phosphate increases the effectiveness of accelerating reactions thus allowing for quick setting and increased early-age compressive strength compositions. | 12-11-2008 |
20090249980 | Cementitious composition - A cementitious composition being a mixture of mono ammonium hydrogen phosphate, magnesium oxide, silicate fibers and water. For the dry components, approximately 40 to 90 wt. percent magnesium oxide, approximately 30 to 5 wt. percent mono ammonium hydrogen phosphate and approximately 30 to 5 wt. percent silicate fibers are mixed. | 10-08-2009 |
20100095870 | INJECTABLE CALCIUM PHOSPHATE CEMENT - The invention is related to a premixed putty calcium phosphate composition comprising at least two calcium phosphate minerals, at least one reaction retarding agent, at least one binding agent, at least one sodium phosphate, and at least one nonaqueous extender, wherein one of said at least two calcium phosphate minerals contains a stabilizing agent. | 04-22-2010 |
20100269734 | Gallium-doped phosphocalcic compounds - The present invention relates to a gallium-doped phosphocalcic compound of formula (I): | 10-28-2010 |
20100313791 | CALCIUM PHOSPHATE BONE CEMENT, PRECURSOR THEREOF AND FABRICATION METHOD THEREOF - The invention provides a calcium phosphate bone cement, a precursor and a fabrication method thereof. The fabrication method comprises: (a) dissolving a calcium phosphate with a low Ca/P atomic ratio in an acid solution, wherein the Ca/P atomic ratio is less than 1.33; (b) adding a calcium phosphate compound into the acid solution to obtain a reaction solution; (c) allowing the reaction solution to stand to grow nanocrystallites on surfaces of the calcium phosphate with low Ca/P atomic ratio; (d) filtering and drying the solution of step (c) to obtain a calcium phosphate powder with low Ca/P atomic ratio having nanocrystallites on the surface; and (e) mixing the powder of step (d) and a calcium phosphate powder with a high Ca/P atomic ratio. | 12-16-2010 |
20110041735 | CALCIUM PHOSPHATE PARTICLES AND HYDRAULIC CEMENTS BASED THEREON - Calcium phosphate particles having A) a specific surface area (SSA) larger than 0.1 m | 02-24-2011 |
20110132231 | CEMENT ADMIXTURE, AND CEMENT COMPOSITION AND CONCRETE CONTAINING THE CEMENT ADMIXTURE - It is an object of the invention to provide a cement admixture that can form concrete having a sufficient self-healing capability and satisfactorily maintaining its self-healing capability for prolonged periods. The cement admixture of the invention contains an expanding material and an alumina-silicate with swelling properties. The cement admixture is combined with cement to form a cement composition. The cement composition is mixed with water and an aggregate to provide concrete with an excellent self-healing capability. | 06-09-2011 |
20120000393 | Fluorapatite-Forming Calcium Phosphate Cements - This study reports in vitro and in vivo properties of fluorapatite (FA)-forming calcium phosphate cements (CPCs). Experimental cements contained from (0 to 3.1) mass % of F, corresponding to presence of FA at levels of approximately (0 to 87) mass %. The crystallinity of the apatitic cement product increased greatly with the FA content. When implanted subcutaneously in rats, the in vivo resorption rate decreased significantly with increasing FA content. The cement with the highest FA content was not resorbed in soft tissue, making it biocompatible and bioinert CPC. These bioinert CPCs are candidates for use in useful applications where slow or no resorption of the implant is required to achieve the desired clinical outcome. | 01-05-2012 |
20130000520 | HYBRID MAGNESIUM CEMENT AND METHOD OF MANUFACTURE - A hybrid magnesium cement composition formed of an A-side and a B-side. The A-side having an A1-component including a light-burn grade magnesium-containing material, and an A2-component including a non-metallic oxide salt. A B-side having a metal silicate polymer is included. | 01-03-2013 |
20150059621 | Struvite-K and Syngenite Composition for Use in Building Materials - A composition and process for the manufacture thereof for use in a hybrid building material comprising at least in part Syngenite (K | 03-05-2015 |
106691000 | Specified filler or organic material containing | 20 |
20090158964 | Injectable calcium phosphate cement - The invention is related to a premixed putty calcium phosphate composition comprising at least two calcium phosphate minerals, at least one reaction retarding agent, at least one binding agent, at least one sodium phosphate, and at least one nonaqueous extender, wherein one of said at least two calcium phosphate minerals contains a stabilizing agent. | 06-25-2009 |
20100083877 | HEAT RESISTANT PHOSPHATE CEMENT - A phosphate cement composition is provided. The cement composition comprises about 10 to 40 percent by weight calcium or magnesium oxide, about 10 to 40 percent by weight acid phosphate, and about 10 to 50 percent by weight vermiculite or perlite or mixture thereof. | 04-08-2010 |
20100089292 | WASTE STORAGE VESSELS AND COMPOSITIONS THEREFOR - Waste storage vessels formed from a composition including calcium silicate, magnesium or calcium oxides and an acid phosphate are provided. The composition may also include fly ash or kaolin with or without the calcium silicate. | 04-15-2010 |
20100139528 | HIGH STARCH LIGHT WEIGHT GYPSUM WALLBOARD - The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1%-3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients. | 06-10-2010 |
20100269735 | Composition Based on Phosphatic Raw Materials and Process for the Preparation Thereof - The invention relates to a composition comprising an inorganic phosphatic binder and fillers with a high specific surface area, the use thereof and the preparation thereof. | 10-28-2010 |
20100269736 | Dual-Phase Calcium Phosphate Cement Composition - Disclosed are dual-phase cement precursor systems and associated methods and kits. The cement precursor systems comprises at least first and second phases each containing a calcium phosphate compound. When mixed, the first and second cement precursor phases form a biocompatible cement. The disclosed systems include an organic acid in an amount effective to enhance the working time of the cement precursor composition, and also include a setting accelerator. In some embodiments, one or more of the calcium phosphate compounds is provided in the form of particles with a nonmonomial particle sized distribution. | 10-28-2010 |
20100313792 | Additives For Altering The Hardening Rate Of Chemically Bonded Silico-Phosphate Cements And Method Therefor - A method is provided for advantageously altering the rate of hardening of a magnesium silico-phosphate cement (MSPC). Addition of on the order of 1% of an [MF | 12-16-2010 |
20100319585 | Environmentally Compatible Defoamers and Cement Compositions Including Environmentally Compatible Defoamers - Disclosed herein are defoamers comprising ethylene glycol, a defoaming hydrocarbon base fluid, and a non-ionic surfactant wherein the hydrocarbon base fluid comprises an internal olefin or a straight-chain n-alcohol, and wherein the non-ionic surfactant is present in the defoamer in an amount in the range of from about 1% to about 10% by weight of the defoamer. Also disclosed herein are cement compositions comprising water, hydraulic cement, and a defoamer, wherein the defoamer comprises ethylene glycol, a non-ionic surfactant, and a defoaming hydrocarbon base fluid wherein the hydrocarbon base fluid comprises an internal olefin or a straight-chain n-alcohol, and wherein the non-ionic surfactant is present in the defoamer in an amount in the range of from about 1% to about 10% by weight of the defoamer. | 12-23-2010 |
20110192324 | DEVICE FOR USE AT TEMPERATURES ABOVE 1000.degree.C OR IN MOLTEN STEEL - A device is provided for use at temperatures above 1000° C. or in steel melts. The device has a body based on a material selected from at least one of high temperature-resistant hollow balls and high temperature-resistant hollow fibers. The body further contains water glass and a cement. | 08-11-2011 |
20120000394 | Tricalcium Phosphate Coarse Particle Compositions and Methods for Making the Same - Methods for preparing a tricalcium phosphate coarse particle composition are provided. Aspects of the methods include converting an initial tricalcium phosphate particulate composition to hydroxyapatite, sintering the resultant hydroxyapatite to produce a second tricalcium phosphate composition and then mechanically manipulating the second tricalcium phosphate composition to produce a tricalcium phosphate coarse particle composition. The subject methods and compositions produced thereby find use in a variety of applications. | 01-05-2012 |
20120024195 | CALCIUM PHOSPHATE CEMENT COMPOSITION AND ITS KIT FOR BONE PROSTHESIS - A calcium phosphate cement composition kit comprising (A) a powdery agent comprising (a) 100 parts by mass of calcium phosphate powder, and (b) 10-50 parts by mass of a powdery foaming agent comprising carbonate or hydrogen carbonate and a solid organic acid or its salt, and (B) an aqueous blending liquid containing a thickener in a concentration of 2.5-12.5% by mass, a paste-like mixture obtained by blending the powdery agent with the aqueous blending liquid being filled in a predetermined prosthetic site in a human body to form a porous calcium phosphate body having porosity of 60% or more. | 02-02-2012 |
20120234207 | NUCLEATED CEMENTS AND RELATED METHODS - Methods and a kit. A cement forming method includes nucleating an acidic metallophosphate reaction mixture with first particles, resulting in forming a settable metallophosphate cement from the acidic metallophosphate reaction mixture. The first particles include a first metal oxide. Each particle of the first particles independently have a particle size in a range from about 15 microns to about 450 microns. A method for applying cement includes seeding a solution with particles, resulting in forming a settable cement from the solution. The particles have a size in a range from about 15 microns to about 450 microns. The solution includes a first metal oxide reacting with phosphate. The settable cement is applied to a substrate. A cement application kit is also described. | 09-20-2012 |
20130008349 | HEAT RESISTANT PHOSPHATE CEMENT - An article of manufacture including reinforcement material embedded in a phosphate cement composition is provided. The phosphate cement composition includes about 10 to 40 percent by weight calcium or magnesium oxide, about 10 to 40 percent by weight acid phosphate, and about 10 to 50 percent by weight vermiculite or perlite or mixture thereof. | 01-10-2013 |
20130199415 | CEMENT MIXES CONTAINING ADDITIVES FOR ALTERING THE HARDENING RATE OF CHEMICALLY BONDED SILICO-PHOSPHATE CEMENTS AND METHODS THEREFOR - A cement mix for preparation of a magnesium silico-phosphate cement (MSPC) with an altered hardening rate is provided. The cement mix comprises on the order of 1% of an [MF | 08-08-2013 |
20140202359 | Rapid Setting High Strength Calcium Phosphate Cements Comprising Cyclodextrins - Rapid setting high strength calcium phosphate cements and methods of using the same are provided. Aspects of the cements include fine and coarse calcium phosphate particulate reactants and a cyclodextrin which, upon combination with a setting fluid, produce a flowable composition that rapidly sets into a high strength product. The flowable compositions find use in a variety of different applications, including the repair of hard tissue defects, e.g., bone defects such as fractures. | 07-24-2014 |
20140305343 | Slow Release Phosphocement - A mixture suitable for use in forming a magnesium silico-phosphate cement is disclosed. The mixture comprises particles of MgO at least partially coated with an additive adapted to alter the setting time of said cement cast; a phosphate salt or acid chosen that will provide a binder product characterized by the empirical chemical formula MMgPO | 10-16-2014 |
20140305344 | MAGNESIUM PHOSPHATE BIOMATERIALS - There is provide a solid cement reactant comprising a dehydrated magnesium phosphate, and/or an amorphous or partially amorphous magnesium phosphate, and/or Farringtonite. | 10-16-2014 |
20150033989 | Fast Setting Portland Cement Compositions With Alkali Metal Citrates And Phosphates With High Early-Age Compressive Strength and Reduced Shrinkage - A method of making a rapid setting composition for cement boards is disclosed. Compositions including a hydraulic cement preferably portland cement, an alkali metal citrate such as tripotassium citrate, and a phosphate such as sodium trimetaphosphate, with optional gypsum, and no alkanolamine accelerant, and no fly ash based cement. An interaction between the alkali metal citrate and the phosphate increases the effectiveness of accelerating reactions of the portland cement without need for an alkanolamine accelerant, even in the presence of gypsum. This allows unexpected quick setting and increased early-age compressive strength without shrinkage in the cement board compositions. | 02-05-2015 |
20160102017 | Hybrid Magnesium Cement and Method of Manufacture - A hybrid magnesium cement composition formed from an A-side component and a B-side component. The A-side component includes an A1-component including a light-burn grade magnesium-containing material, and an A2-component including a non-metallic oxide salt. A B-side component having a metal silicate polymer is included. | 04-14-2016 |
20160199533 | Injectable, Biodegradable Bone Cements and Methods of Making and Using Same | 07-14-2016 |