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| Number | Title | Issue Date |
| 7431763 | Magnesium ammonium phosphate cement composition This invention relates to a cement, which comprises in its main phase of microcrystalline magnesium ammonium phosphate and nanoapatite after hardening and thus at the same time has considerable strength. The material is biologically degradable and is suitable for ap... | 10/07/2008 |
| 7364015 | Acoustical panel comprising interlocking matrix of set gypsum and method for making same An acoustical panel comprising a continuous phase of an interlocking set gypsum matrix and a method of preparing an acoustical panel are disclosed. ... | 04/29/2008 |
| 7288147 | Providing freezing and thawing resistance to cementitious compositions An improved freeze-thaw durability wet cast cementitious composition is provided that uses in-situ production of gas by gas generating additives and optionally polymeric microspheres that are blended directly into the mixture. The gas generating additives and the po... | 10/30/2007 |
| 7128965 | Cementitious product in panel form and manufacturing process The present invention relates to a product, in particular a panel, that can be obtained by the Hatschek process and without autoclaving, and can be used as siding, cladding element or partition element, this product being formed from a fibre-reinforced cementitious ... | 10/31/2006 |
| 7105587 | Method and composition for polymer-reinforced composite cementitious construction material A method and composition for polymer-reinforced composite cementitious construction materials is described. In one embodiment, a crosslinking component is mixed with a high molecular weight strengthening component and an inorganic cementitious material. The addition... | 09/12/2006 |
| 6989057 | Zeolite-containing cement composition A method and cement composition is provided for sealing a subterranean zone penetrated by a well bore, wherein the cement composition comprises zeolite, cementitious material, and water sufficient to form a slurry. ... | 01/24/2006 |
| 6964302 | Zeolite-containing cement composition Methods and cement compositions are provided for sealing a subterranean zone penetrated by a wellbore, wherein the cement composition comprises zeolite, cementitious material, and a mixing fluid. ... | 11/15/2005 |
| 6911076 | Cementitious based structural lumber product and externally reinforced lightweight retaining wall system The invention includes a method for constructing buildings using non-wood construction products and buildings constructed from such non-wood construction products. The invention further includes a method and apparatus for manufacturing high-performance fiber-reinfor... | 06/28/2005 |
| 6902797 | Gypsum-based composite materials reinforced by cellulose ethers A gypsum-based composite structure is prepared from a slurry comprising a mixture of calcium sulfate hemihydrate, a cellulose ether additive other than CMC and an amount of water that is sufficient to form a slurry. The calcium sulfate hemihydrate is hydrated by the... | 06/07/2005 |
| 6872246 | Fiber cement composite materials using cellulose fibers loaded with inorganic and/or organic substances This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using the loaded cellulose fibers. This invention discloses four aspects of the technology: fiber treatment, formulation, method and final product. This techno... | 03/29/2005 |
| 6806298 | Sprayable composition and method for forming a foamed outdoor protective cover layer A sprayable composition and a method of protecting material with the composition is disclosed. The composition comprises a bulking/setting material, a water soluble polymer and water to provide a cover layer which, after spraying, is tough, flexible and water-repell... | 10/19/2004 |
| 6783587 | Lightweight wallboard compositions containing natural polymers Compositions useful for the preparation of lightweight, high strength wallboards, and methods of making same are disclosed. The composition includes a slurry of calcium sulfate hemihydrate (stucco), water, starch, and a foam. The foam acts to provide large bubbles w... | 08/31/2004 |
| 6676744 | Fiber cement composite materials using cellulose fibers loaded with inorganic and/or organic substances This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using the loaded cellulose fibers. This invention discloses four aspects of the technology: fiber treatment, formulation, method and final product. ... | 01/13/2004 |
| 6592660 | Methods and compositions for forming permeable cement sand screens in well bores Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to... | 07/15/2003 |
| 6488761 | Hydraulic hardened foamed product and a method of producing the same A method of making a composite product such as a building board, includes the steps of mixing together finely divided lignocellulosic fibres, a hydraulic binder, and water optionally containing a polyvinyl alcohol, to form a paste; introducing a foam gene... | 12/03/2002 |
| 6387171 | Concrete compositions and methods for the preparation thereof Disclosed is a concrete composition that comprises water, a cementitious material, and an aggregate material, the aggregate material comprising a granular starch. In accordance with preferred embodiments of the invention, the granular starch is a washed, ... | 05/14/2002 |
| 6364945 | Methods and compositions for forming permeable cement sand screens in well bores Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a par... | 04/02/2002 |
| 6340498 | Porous composition for use in an environment of variable pressure and/or variable temperature A mixture of a binder and a particle material, the mixture having 50 to 90 volume percent of the particle material. The binder is curable in a temperature range of 50° F. to 90° F. The volume percent of the present composition provides an inherent perme... | 01/22/2002 |
| 6238476 | Method of curing drywall compound A method of reducing the curing time of drywall joint compound, and thereby reducing the time required to finish drywall joints or to repair plaster walls, includes adding a predetermined amount of a drying agent to a conventional ready-mixed drywall join... | 05/29/2001 |
| 6162839 | Composition for producing light plaster, production of the foaming agent used therefor and its use A composition for producing light plaster contains as main constitutive elements particles of plaster in anhydride or hemihydrate form and at least one foaming agent. The composition is characterized in that the foaming agent generates gas after a delay o... | 12/19/2000 |
| 5958589 | Starch-based microcellular foams Starch-based microcellular foams composed of a solid matrix with a network of small open cells or pores are described. The foams have high pore volume, low density, and high surface area, and are prepared using a process wherein an aqueous gel prepared fr... | 09/28/1999 |
| 5897701 | Wet dispersion of plant pulp in concrete and use thereof Pulp fibers derived from wood or non-wood plants or recycled paper products are individualized and dispersed in water, and mixed into cement-based mixtures using conventional mixing procedures at relatively low dosages of about 0.3-30 kg of fiber per cubi... | 04/27/1999 |
| 5782970 | Lightweight, waterproof, insulating, cementitious composition A lightweight insulating concrete is produced from a cement mix containing sawdust, diatomite, bentonite, and lime. The addition of rock salt and the entrainment of air bubbles results in a concrete with a high compressive strength, high thermal resistanc... | 07/21/1998 |
| 5595595 | Aquagel-based lightweight concrete The present invention is directed to concrete compositions prepared using firm aqueous gels (aquagels) as all or part of the aggregate in a concrete mix. The concrete sets around the aquagels in the initial set stage. Because the aquagels maintain the por... | 01/21/1997 |
| 5575844 | Method of preparing gypsum products The invention provides a method of making gypsum products such as plasterboard from foamed gypsum plaster slurry. The method uses a first mixing chamber 10 containing a high speed rotor 14 and inlets 18, 19 for gypsum plaster and water. The initial disper... | 11/19/1996 |
| 5174821 | Hydraulic composition, formed products therefrom and segregation reduction agent for hydraulic substances This invention provides a hydraulic composition which contains a cementitious material in powder form, ଲ-1,3-glucan, and a superplasticizer. The composition makes it possible to prepare concrete with high resistance to segregation, high fluidity, an... | 12/29/1992 |
| 5154771 | Hydraulic inorganic composition and molded articles thereof A hydraulic inorganic compositions which comprises a hydraulic inorganic powder at least one of polysaccharides selected from the group consisting of ଲ-1,3-glucans, pullulan and XCD-Polymer in an amount of 0.1-10 parts by weight in relation to 100 p... | 10/13/1992 |
| 5049196 | Method of wetting a cement or gypsum-bonded fibrous mixture of building materials A simple and inexpensive method of wetting a cement or gypsum-bonded fibrous mixture of building materials using water is characterized in that the water is added to the mixture of building materials at least partially in the form of a foam containing at ... | 09/17/1991 |
| 4585486 | Process for placing cement composition having high strength A process for placing a cement composition having high strength is provided. The process comprises the steps of adding a viscosity increasing agent, vacuum de-bubbling under reduced pressure and allowing the de-bubbled cement composition to be hardened. A... | 04/29/1986 |
| 4432799 | Refractory compositions and method A basic refractory composition includes a magnesium oxide source, aluminum phosphate and an insulating material selected from the group consisting of perlite, vermiculite, diatomaceous earth, and mixtures thereof in an amount of 5.60% based on the total w... | 02/21/1984 |
| 4391647 | Spackeling composition A composition is disclosed for spackeling or joint compound or as a stucco composition including hollow silica particles. Also, disclosed is a preferred composition comprising the following components in the indicated proportions: from about 3 to about 7 ... | 07/05/1983 |
| 4367093 | Well cementing process and gasified cements useful therein A process and method for cementing adjacent to a subterranean gas containing zone. The cementing compositions comprise a hydraulic cement, aluminum powder ot generate hydrogen gas, and an inhibitor which retards the generation of hydrogen gas produced by ... | 01/04/1983 |
| 4364994 | Process and composition for minimizing accumulation of moisture on a cold surface exposed to humid conditions and product obtained thereby The accumulation of moisture on a cold surface exposed to humid conditions which tend to cause condensation on said surface is minimized by applying a coating to the surface which contains unoccluded, water-absorptive particles in admixture with a resinou... | 12/21/1982 |
| 4328178 | Process of producing a building product of gypsum, particularly a gypsum slab This invention provides a process of producing a building product, particularly a gypsum slab having preferably a density of below 800 kg/m3, with gypsum and mixing water. The quantity of mixing water required for rehydration and molding is at ... | 05/04/1982 |
| 4299790 | Method and composition for forming a plaster object Formation of toy figurines from tap water and a molding powder mixture of calcium sulphate hemihydrate with xanthan gum in a shaker molding assembly. The molded article dries into a porous lightweight object. The materials are non-toxic.... | 11/10/1981 |
| 4162924 | Shaped bodies of calcium silicate and process for producing same A shaped body of calcium silicate characterized by being composed of globular secondary particles interconnected with one another and each made up of lath-like xonotlite or foshagite crystals having been three-dimensionally interlocked with one another an... | 07/31/1979 |
| 4135940 | Lightweight material comprising Portland cement, lime, sand, a colloid and an air entraining agent The present invention relates to a lightweight material comprising Portland cement, a colloid, an air entraining compound and lime. This material is manufactured by effecting a vigorous mixing during which high proportions of air are taken up in the mixtu... | 01/23/1979 |
| 4131480 | Pumpable cementitious compositions The invention concerns a pumpable cementitious composition containing porous light weight aggregate. The composition is rendered pumpable by the addition of a dispersing agent and a gelling agent in sufficient amount to reduce the absorption of water by t... | 12/26/1978 |
| 4047962 | Construction composition A construction composition developed to provide a material of construction which can be utilized to build essentially all types of structures, including houses, office buildings, and the like, which composition is capable of being wet mixed and subsequent... | 09/13/1977 |
| 4021258 | Concrete structure and method of preparing same A concrete structure containing in its body short fibers and at least one piece of cloth in an intertwined state is produced by disposing at least one piece of cloth in a form, pouring into said form a cement slurry composed of water, short fibers and a m... | 05/03/1977 |
