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| Number | Title | Issue Date |
| 7413603 | Fiberboard with improved water resistance Articles, including fiberboard, are made from a pumpable, flowable slurry including alpha-calcined calcium sulfate hemihydrate anchored in pores of host particles, alpha-calcined calcium sulfate hemihydrate, a silicone compound, magnesium oxide, and water. The magne... | 08/19/2008 |
| 7374611 | Sprayable machinable media In conjunction with water, a mixture can be used to prepare a sprayable slurry that hydrates to form a machinable plaster composition. The mixture includes from about 80% to about 98% by weight calcium sulfate hemihydrate, from about 1% to about 5% by weight adhesiv... | 05/20/2008 |
| 7371279 | Cellulose ether composition A composition comprising cellulose ether, a superplasticizer and defoamer suitable for use as an additive in extruding inorganic compositions is disclosed. The inventive composition functions as a water retention agent, plasticizer and lubricant in the extrusion of ... | 05/13/2008 |
| 7294195 | Water repellant gypsum compositions In at least one embodiment, the present invention relates to a gypsum composition suitable for use in the manufacture of construction materials comprising a) gypsum, b) water, and c) a water repellancy composition comprising a hydroxy-based cellulose and a siliconat... | 11/13/2007 |
| 7284930 | Composition and method for forming a sprayable materials cover An alternative cover for landfill may be formed from a slurry mixture of water, cementitious binder, adhesion enhancing admixture and fiber. These constituents may be mixed and applied to cover landfilled wastes, granular material piles or for soil erosion control. ... | 10/23/2007 |
| 7276115 | Conformable coating A conformable coating for application to a soil substrate for barrier, adhesive, and planting properties includes a mixture of recycled or virgin materials, including organic fibrous material from wood based material and cotton based material, and gypsum bearing mat... | 10/02/2007 |
| 7199168 | Process for making cellular composites using polymeric isocyanates as binders for hollow filler particles The present invention relates to a process for the production of a cellular composite, and to the resultant cellular composites. This process comprising (A) preparing a mixture of a polyisocyanate, water, and, optionally, one or more additives; (B) adding this mixtu... | 04/03/2007 |
| 7108744 | Tape joint compounds with CMC thickener system CMC with CMDS greater than or equal to 0.76, optionally with a non-ionic co-thickener or a CMC with CMDS less than 0.75 is used as both the rheology modifier and partial clay substitute in tape joint compounds. This significant reduction of clay level is sufficient ... | 09/19/2006 |
| 7101426 | Inorganic matrix composite reinforced by ionically crosslinked polymer An in situ ionic interaction between two additives, one a cationic strength enhancing additive and one an anionic crosslinking additive, is used to improve the mechanical properties of an article formed from a composite material. The composite has a discrete phase b... | 09/05/2006 |
| 7066996 | Joint compounds using thickeners prepared from raw cotton linters A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a ready mixed joint compound composition wherein the amount of the cellulose ether in the joint compound composition is significantly reduced. When this join... | 06/27/2006 |
| 7052544 | Low dust wall repair compound A wall repair compound useful for filling and repairing cracks, holes, and other imperfections in a wall surface includes a conventional filler material, a conventional binder material, and a dust reducing additive which reduces the quantity of airborne dust particl... | 05/30/2006 |
| 7048794 | Organic-inorganic composite An inorganic-organic composite comprises an inorganic phase, such as gypsum crystals, and a film forming organic phase. The film forming organic phase is selected from substituted starches having a degree of polymerization; degree of substitution and viscosity such ... | 05/23/2006 |
| 7041168 | Process for cement extrusion that makes use of crosslinked cellulose additives A method of preparing construction material systems is described. The process includes extruding a composition of construction materials and an irreversibly crosslinked cellulose derivative that is prepared by a particular process. ... | 05/09/2006 |
| 6912824 | Apparatus, composition and method for finishing a drywall installation An apparatus and method are disclosed for finishing a drywall installation which includes providing drywall mud; providing a continuous twisted strand having a plurality of layers of nonwoven fibrous cellulosic material, wherein at least one individual layer of the ... | 07/05/2005 |
| 6893497 | Use of water-soluble polysaccharide derivatives as dispersing agents for mineral binder suspensions The invention concerns the use of water-soluble polysaccharide derivatives as dispersing agents for mineral binder suspensions. A partially hydrolyzed cellulose containing carboxyl groups and optionally hydroxyalkyl and/or sulfate groups and/or a partially hydrolyze... | 05/17/2005 |
| 6773822 | Antifungal gypsum board A novel gypsum board having antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings and an antifungal agent effective at inhibiting fungal growth. A preferred antifungal agent is cetyl pyridinium chloride. The antifungal a... | 08/10/2004 |
| 6755908 | Admixture and extrudable hydraulic composition An admixture comprising a nonionic water-soluble cellulose ether having an average particle size of 120-500 μm is suited for hydraulic compositions. The admixture does not form clumps even in the presence of a large amount of water. The hydraulic composition having... | 06/29/2004 |
| 6755907 | Gypsum composition with styrene butadiene latex additive Gypsum wallboard made lighter and less dense, without sacrificing strength, by adding to the gypsum slurry used in making the board a styrene butadiene polymer latex substantially stable against divalent ions in which the styrene butadiene polymer latex substantiall... | 06/29/2004 |
| 6680127 | Antifungal gypsum board A novel gypsum board having antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings and an antifungal agent effective at inhibiting fungal growth. A preferred antifungal agent is cetylpyridinium chloride. The an... | 01/20/2004 |
| 6547867 | Non-edible composite material comprising potato peel product The present invention provides adhesive and binder compositions comprising a potato peel product characterized on a dry solids basis by at least 30% starch, at least 5% protein and at least 2% fibers.... | 04/15/2003 |
| 6478868 | Early-enhanced strength cement compositions and methods The present invention provides improved early-enhanced strength cement compositions and methods. The cement compositions can be utilized in surface construction projects as well as in the construction of oil, gas and water wells. The improved cement compo... | 11/12/2002 |
| 6355099 | Plaster mixture for forming a machinable composition A plaster mixture for forming a machinable composition, includes calcium sulfate hemihydrate; an internal lubricating dispersable binder, and an adhesive binder for adhering the plaster mixture to a substrate. In the preferred embodiment, the composition ... | 03/12/2002 |
| 6299970 | Fire-resistant gypsum fiberboard Fiberboards are provided containing at least about 65 wt. % calcium sulfate dihydrate derived from hemihydrate or anhydrous gypsum, and at least about 7 wt. % pulped paper fibers. The boards are capable of being formed into structural members having super... | 10/09/2001 |
| 6261355 | Binder adjuvant used in construction and material comprising it A binder adjuvant used in engineering includes in aqueous solution, a mixture of a water-soluble cellulose ether and of an antifoaming agent.... | 07/17/2001 |
| 6228163 | Clay-free ready-mixed setting-type joint compound A two part joint compound which sets by hydration of calcium sulfate hemihydrate to gypsum and is clay-free. One part includes an in-situ acidic acrylate copolymer thickener (i.e., an associative thickener) with the calcium sulfate hemihydrate, along with... | 05/08/2001 |
| 6010596 | Gypsum wood fiber product having improved water resistance An improved water resistant gypsum board is made by adding an aqueous wax emulsion containing a cationic surfactant to an aqueous slurry containing calcium sulfate and host particles at a slurry temperature which maintains calcium sulfate hemihydrate crys... | 01/04/2000 |
| 5980627 | Production of commercially useful materials for waste gypsum boards A commercially useful material is produced from waste gypsum boards containing calcium sulfate dihydrate, by a method comprising the steps of (a) grinding the waste gypsum boards to obtain particles having a substantially uniform size; (b) drying the part... | 11/09/1999 |
| 5945208 | Fire-resistant gypsum building materials Fiberboards are provided containing at least about 65 wt. % calcium sulfate dihydrate derived from hemihydrate or anhydrous gypsum, and at least about 7 wt. % pulped paper fibers. The boards are capable of being formed into structural members having super... | 08/31/1999 |
| 5922447 | Lightweight gypsum board A lightweight gypsum board is provided, including, by dry weight, gypsum as the largest single ingredient, perlite as the second largest single ingredient, and starch as a minor ingredient, in the board. The starch may be pre-cooked prior to mixing, and i... | 07/13/1999 |
| 5879446 | Gypsum wallboard, and method of making same A method of preparation of gypsum wallboard, as well as a core composition suitable for use therein, are disclosed. The core composition includes a slurry of calcium sulfate hemihydrate (stucco), water, and calcium aluminum lignosulfonate and/or aluminum ... | 03/09/1999 |
| 5858083 | Cementitious gypsum-containing binders and compositions and materials made therefrom Cementitious binders include calcium sulfate beta-hemihydrate, a cement component comprising Portland cement, and either silica fume or rice-husk ash. The silica fume or rice-husk ash component is at least about 92 wt % amorphous silica and has an alumina... | 01/12/1999 |
| 5749964 | Building material mixture A building material mixture for use in manual plasters, gun plasters and knifing fillers having reduced stickiness comprises at least one inorganic binder and a cellulose ether which has been treated with a hydrophobicizing agent.... | 05/12/1998 |
| 5718759 | Cementitious gypsum-containing compositions and materials made therefrom A cementitious composition useful for water-resistant construction materials, including floor underlayments, backing boards, self-leveling floor materials, road patching materials, fiberboard, fire-proofing sprays, and fire-stopping materials includes abo... | 02/17/1998 |
| 5707443 | Grouting materials and their use A grouting material which is self-dispersing when brought into contact with a volume of water containing liquor or slurry and is settable to a solid mass after such dispersion, the material being in the form of self-dispersing granules or pellets and comp... | 01/13/1998 |
| 5626667 | Process and apparatus for producing SO2 -containing gas and cement clinker from waste gypsum A method and apparatus for producing SO2 -containing gas and cement clinker by splitting waste gypsum and anhydrite, using paper fibers as the reducing agent, and firing the splitting residue with additives. The cement forming additives are for... | 05/06/1997 |
| 5558710 | Gypsum/cellulosic fiber acoustical tile composition An acoustical tile composition based on a gypsum/cellulosic fiber composition which can replace all or a portion of the mineral wool normally present in acoustical ceiling tiles. The gypsum/cellulosic fiber composition is combined with a lightweight aggre... | 09/24/1996 |
| 5538553 | Organomineral paste and method of use as construction material An organomineral construction paste comprises a mixture of a suspension of cellulose, lime and an aqueous solution of a sulfate and hydrogen peroxide. Airborne ash and hydraulic binders may also be added to impart additional moldable properties to the pas... | 07/23/1996 |
| 5482551 | Extruded fire resistant construction and building products An extrudable composition is provided which is made up primarily of gypsum, a binder/rheology aid and water with a crumbly, semi-dry consistency. The extrudable composition described can be extruded through a die to provide a building product. Density can... | 01/09/1996 |
| 5482543 | Multipurpose, ecological water-paint A new and original water paint is disclosed, in liquid form, such as a milky emulsion, containing a low amount of water and comprising minerals, acetic acid solution, and other components. The new water paint has bactericidal, fireproof, transpiring, ecol... | 01/09/1996 |
| 5435842 | Vibration damping thick-film coating composition and method of forming the coated film Vibration damping thick-film coating composition comprising a coating composition comprising 100 parts by weight of a binder, from 20 to 200 parts by weight of a hydraulic inorganic filler, from 10 to 150 parts by weight of a filler other than the hydraul... | 07/25/1995 |
