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7628851 |
Bone cement compositions having fiber-reinforcement and/or increased flowability
The present invention relates in general to implantable compositions, and method for preparing same, containing a calcium salt-containing component, optionally demineralized bone, a plurality of...
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7608347 |
Modifiers for gypsum slurries and method of using them
An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the...
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7556685 |
Composition of architectural papier-mâché and articles made therewith
The invention is a composition of an architectural papier-mâché, and articles made therewith. Articles formed from using the architectural papier-mâché have excellent weather resistance, and...
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7285166 |
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.
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7070647 |
Cement composition
A novel cement is alkalescent, capable of solidifying a wide range of soil and applicable to biological environment. The cement composition contains 100 parts by weight of magnesium oxide, 5 to 25%...
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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...
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6824606 |
Additive for special plasters and mortars, compositions containing the additive and utilization of the additive in special plasters and mortars
A water retaining additive for conglomerate building materials, free of cellulose-like derivatives, that comprises at least a rheological grade clay, preferably sepiolite, and a modified natural...
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6740395 |
Substrate smoothed by coating with gypsum-containing composition and method of making
A rough-surfaced substrate, such as a fiberboard, is provided with a smoother surface by applying a coating comprising calcium sulfate hemihydrate which has been prevented from hydrating to gypsum...
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6648965 |
Fire door components and fire doors comprising the components
Structural components for a fire door comprising a core and edge banding and other structural components, the components comprising gypsum, expanded perlite, and cement, and having a density...
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6641658 |
Rapid setting cementitious composition
A rapid setting cementitious composition useful for making cement boards employs an insoluble form of anhydrous calcium sulfate (anhydrite) to accelerate setting and to permit reducing the amount...
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6616753 |
Methods and compositions for sealing subterranean zones
Methods and compositions for sealing subterranean zones penetrated by well bores are provided. The methods basically comprise the steps of introducing a sealing composition into the subterranean...
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6572698 |
Activated aluminosilicate binder
An activated aluminosilicate binder containing aluminosilicates, calcium sulphate and an activator containing alkali metal salts is disclosed. The aluminosilicates are selected from a group...
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6554893 |
Fire door core
The present invention describes an improved building material composition, useful for example as a fire door core and to improved methods of making this composition. The building material of the...
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6475275 |
Cement composition
A cement composition contains 35-85% by weight of a cement, 3-15% by weight of a clay, 1-50% by weight of an aggregate and/or a fibrous material, and 0.2-5% by weight of a high efficiency retarder....
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6406535 |
Material for constructional finished wallboard
A constructional finished wallboard is formed of a mixture including 50 to 65 wt. % of dried shirasu, 30 to 40 wt. % of a plaster component, 3 to 10 wt. % of a clay component, 5 to 10 wt. % of...
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6379455 |
Chemical agent for improving the engineering properties of soil
A chemical agent for improving the engineering properties of soil includes a mixture of cementitious pozzalans (5 to 60% by mass), calcium sulphate (20 to 80% by mass), an oxide of calcium (15 to...
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6350304 |
Building material
The construction material comprises a construction base material and microcapsules inside of which liquid containing hinokitiol is incorporated and a plurality of which are to be mixed into the...
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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...
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6277190 |
Use of alcohols as additives for plaster and/or mortar
Mortars and plasters containing additives which are alcohols having from 8 to 72 carbon atoms adsorbed on solid supports, and processes for the preparation of the additives.
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6200380 |
Method for continuous production for wallboard tape joint compound
A method of continuously producing a cementitious composition such as joint compound includes pre-mixing at least two dry ingredients and pre-mixing at least two liquid ingredients. The ingredients...
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6007620 |
Process to make interground, white, blended cement
A process of manufacturing blended white cement comprises the following steps: (a) providing anhydrous alumino-silicate, diatomaceous earth, and/or other natural pozzolans; (b) providing white...
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5997632 |
Blended hydraulic cement
The present invention is directed to blended hydraulic cement compositions which are formed with subbituminous fly ash. In one embodiment, the cement composition comprises from about 0.1 wt. % to...
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5961712 |
Method for making shotcrete and such compositions
The invention provides cementitious mixtures, particularly for use as shotcrete binding materials. The resultant shotcrete has characteristics of rapid setting as low as 5 to 10 minutes, high early...
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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...
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5882146 |
Immobilization of materials
There is disclosed a method for immobilizing an oily or non-polar substance in a concrete matrix comprising the following steps: (a) absorbing the said oily or non-polar substance into a calcined...
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5788762 |
Cementitious systems and methods of making the same
Novel cementitious systems comprised of gypsum, calcined clay, and clinker consisting essentially of hydraulic calcium silicates are disclosed which have the following properties: (1) a water...
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5749963 |
Hardenable mortar composition
The hardenable mortar composition consists of a bonding agent component including a hydraulic bonding agent, such as cement, gypsum or mortar, and a paste-forming agent consisting of a liquid...
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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...
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5651816 |
Cement, cement products, molding material, concrete member and a method of producing the same
Cement comprising hydraulic cement and polymer precursor such as alcohol-soluble phenol resin precursor that is substantially anhydrous and generates water by polymerization.
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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...
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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...
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5277712 |
Dry mix-type joint compounds, compositions therefrom and methods for filling drywall joints with same
A dry mix-type, drywall panel joint compound is produced which comprises (a) a fine plaster which is applied to a joint formed between adjacent drywall panels in the plastic state to form a...
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5098612 |
Method of preparing solidified and stabilized hazardous or radioactive liquids
An aqueous liquid or sludge waste is solidified by mixing it with a clay selected from the group consisting of sodium Montmorillonite, attapulgite, sepiolite, and mixtures thereof and a...
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4994112 |
Hydrophobically modified cellulosic thickeners for paper coating
Hydroxyalkylcellulose hydrophobically modified with a C12 to C16 alkyl or aralkyl group represents a preferred thickener for a paper coating composition to obtain uniform coating at high speed. The...
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4981521 |
Sprayable fireproofing composition
Fire retardant coatings for metal structural members are obtained by spraying onto the structural members settable plaster compositions which are air-containing pumpable aqueous slurries of...
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4954134 |
Agglomeration of gypsum, limestone, or gypsum-limestone mix
An improved process for economically and effectively granulating solid, finely-divided, particulate feedstock comprising phosphogypsum, limestone, or mixtures comprising sulfogypsum, natural or...
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4861378 |
Cement additive containing superplasticizer and bentonite
A cement additive contains a superplasticizer, an inorganic strength increasing agent such as calcium sulfate or silica fume and bentonite.
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4836856 |
Stabilizing road base composition and method for preparing same
A composition for preparing a stabilizing road base and method for preparing same. The composition and method for preparing same comprise 30-50% by volume of gypsum fines having a diameter of less...
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4799961 |
Cementuous fiber impregnated construction composition and process for formation thereof
A construction composition comprising an alkalin earth oxide, such as calcium oxide, a siliceous material having a high surface area to volume ratio such as diatomite, cement, fiber and other...
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4286995 |
Mica-free joint compound
A joint compound, having crack resistance substantially equal to joint compounds containing mica, wherein the mica has been replaced by low length to width ratio gypsum crystals formed by the...
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4278468 |
Gypsum fire barrier for cable fires
Electrical power, instrument and communication cables constructed with combustible coverings can provide a pathway by which fire might spread. Cable fires within a room or compartment can be...
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4265672 |
Powdered telephone cable filling compound
The present specification discloses a composition in powdered form, suitable for filling the interstices between the conductors and the outer sheath of telecommunications cables, which comprises...
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4196008 |
Aqueous gypsum composition
A composition for securing a fixing element such as a dowel in a drillhole in a rock mass comprises alpha gypsum gauged with a solution of a water-soluble salt of carboxy methyl cellulose...
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4076862 |
Method of treating earthen areas
A method of treating barren earthen areas for inhibiting air and sun spoilation is disclosed, the method comprising forming an aqueous slurry of calcium sulfate hemihydrate with a small amount of...
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3976467 |
Urea gypsum addition product and method
Soil supplement and plant nutrient and method therefor the supplement nutrient having the empirical formula (CaSO 4 ) 2 .2CO(NH 2 ) 2 and being prepared by replacing the normal two waters of...
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3256223 |
Surface coating compositions comprising plaster of paris and method of producing the same
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3215549 |
Binding composition and method of making same
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3198858 |
Plaster composition and method
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3081177 |
Dental impression compositions
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2882175 |
Pozzolan plasterboard
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