Matches 1 - 50 out of 94 1 2 >


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8821629 Light-weight composition and mix for masonry, mortar and stucco  
A pre-mixed mortar, stucco or masonry composition includes from 70 to 80 percent sand and from 20 to 30 percent of a light-weight cement mix composition that comprises either slag cement, Gypsum...
8808448 Mineral heat-insulation material  
The method for applying a heat insulation layer to an area is characterized in that alpha-hemihydrate or beta-gypsum or lime-alpha-hemihydrate or a mixture thereof is mixed as hydraulic binder...
8691007 Low thermal transmission building material  
A wallboard, a method of preparing a wallboard, and a method of making a gypsum slurry to prepare a wallboard are provided. The wallboard includes a set gypsum dihydrate derived substantially from...
8021476 Gypsum mortar with added expanded vermiculite and method for obtaining same  
The invention relates to gypsum mortar with expanded vermiculite added with citric acid and tartaric acid and to the method for obtaining same, containing the following elements in the following...
7837786 Compositions of cellular materials that contain anhydrite and methods for its preparation  
The present invention describes improved cellular compositions that contain anhydrite that reaches high compression resistance values, of the order of 110 to 138 Kg/cm2, as well as methods of...
7819993 Method for producing light gypsum board  
Provided is a method of manufacturing a weight-saved foamed gypsum board having a gypsum core with high strength and excellent adhesion properties of the gypsum core with base papers for gypsum...
7731792 Method of producing recycled hardened materials using waste gypsum  
Disclosed herein is a method for producing a recycled hardened material using waste gypsum. The method comprises treating acidic wastewater generated in the production of copper, zinc or titanium...
7682445 Powdered CBC system with improved reaction feature  
The present invention deals with the initial hydration reaction of highly alkaline chemically bonded ceramic systems such as Ca-aluminate and Ca-silicate, exhibiting a controlled pH development,...
7678189 Foaming plaster  
A method of producing a foamed plaster comprises the following steps: (a) mixing plaster of Paris and calcium carbonate; (b) supplying water, and (c) adding phosphoric acid. The phosphoric acid...
7220373 Process for lightening plasterboards  
Process for the manufacture of plasterboards exhibiting a core density of less than 0.77 comprising the stages of the formation of a foam from water and a surfactant composed of at least one alkyl...
7033431 Surfactant composition for gypsum plaster boards  
A gypsum composition including gypsum, water, and a surfactant composition of alkyl sulfates of formula H(CH2)nOSO3−M+, in which n is from 6 to 16, the mean number of carbon atoms in the alkyl...
6893752 Mold-resistant gypsum panel and method of making same  
A mold-resistant gypsum panel includes a core of an interlocking matrix of calcium sulfate dihydrate crystals, a facing material on at least one side of the panel and a salt of pyrithione...
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...
6774146 Dispersant and foaming agent combination  
The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products. The dispersant in the...
6773500 Fiber reinforced aerated concrete and methods of making same  
Fiber reinforced aerated concrete compositions and methods of forming structural units such as blocks, panels, etc., from such compositions are disclosed. The compositions comprise a fly...
6706128 Method of providing void space in gypsum wallboard and in a gypsum core composition  
The invention provides a method of providing void spaces in gypsum wallboard and in a gypsum core composition such that the weight of the gypsum product is reduced without deleteriously affecting...
6692615 Method of making a slurry  
An organic substrate is manufactured from recycled waste paper, cotton fiber and cotton gin waste, and gypsum. The recycled waste products are combined to form a slurry mixture for processing by...
6626991 Low-density and low-porosity cementing slurry for oil wells or the like  
The invention relates to a cement slurry for cementing an oil well or the like, the slurry having a density lying in the range 0.9 g/cm3 to 1.3 g/cm3, and being constituted by a solid fraction and...
6569541 Plaster-based prefabricated structural element exhibiting water resistance  
A water-resistant prefabricated structural element comprising a substrate based on cured plaster, said substrate being able to be obtained by at least the following steps: (a) homogeneously mixing...
6511537 Retarding systems and application to oil well cementing  
Systems for retarding setting in an oilfield well cement slurry comprise a solution of a phosphonate selected from methylene phosphonic acid derivatives and a phosphate, in particular selected...
6406755 Sprayable fireproofing composition  
Improved sprayable gypsum-based fireproofing composition comprising a lightweight aggregate and a set retarding agent in an amount effective to delay the setting of said composition for at least...
6290769 Lightweight insulating concrete and method for using same  
A lightweight insulating concrete composition includes a cementitious forming material and a lightweight aggregate combination of expanded vermiculite and expanded perlite, the weight ratio of one...
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...
6171388 Lightweight gypsum composition  
A composition of matter comprising (a) gypsum (CaSO4 . 2H2 O); (b) one or more naturally occurring or synthetic latex polymers; and (c) one or more nonionic surfactants; wherein said composition...
6162839 Composition for producing light plaster, production of the foaming agent used therefor and its use  
PCT No. PCT/EP96/05517 Sec. 371 Date Aug. 11, 1998 Sec. 102(e) Date Aug. 11, 1998 PCT Filed Dec. 11, 1996 PCT Pub. No. WO97/25567 PCT Pub. Date Jun. 26, 1997A composition for producing light...
6039800 Production of foamed compositions containing gypsum  
Disclosed is a process of making foamed compositions of water, gypsum, and either or both of alpha-olefin sulfonates and/or amphoteric surfactants of formula (a) or (b) R4 --(OC3 H6)0-1...
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...
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...
5824148 Sound absorbing cementitious composition and method of making same  
The invention relates to an improved sound absorbing cementitious composition and method of making involving a preformed foam solution made from a surfactant, such as an ammonium salt of a...
5788761 Process for the manufacture of construction materials  
A process in which the conventional sulfate components in an aerated concrete mixture, such as gypsum, semihydrate or anhydrite, are replaced at least in part by calcium aluminum sulfates and/or...
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,...
5714001 Foaming agent composition and process  
Surfactants containing a mixture of alkyl sulfate and alkyl ether sulfate in specific ratios are provided. Preferred compositions are blends of alkyl sulfate with narrow range alkoxylated alcohols...
5683616 Process for preparing ceramic-like materials and the ceramic-like materials  
This invention relates to a process for preparing ceramic-like materials with specific properties by binding an inorganic filler in the form of a dry composition with a grain size of up to 25 μm...
5663218 Protection from shocks, capable of deforming progressively and in an irreversible manner  
Process for protecting articles from shock comprising encasing such articles in a plurality of molded blocks of a composition capable of progressively and irreversibly deforming in response to...
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...
5558707 Fire door core  
A core for fire doors comprises hydrated gypsum occupying about 40% to 46% of the core volume and bubbles occupying almost all the core volume which is not gypsum. The bubbles preferably comprise...
5520729 Process for producing heat-insulating material  
The invention relates to a process for producing heat-insulating material from silicate-containing material, hydrated lime, water, foam and a reactive aluminates-containing quick-setting cement,...
5494513 Zeolite-based lightweight concrete products  
Lightweight concrete products, useful for example in blocks, wall panels, floor and roof slabs, in which zeolite is a major component, its content in the cementing material of the products...
5466393 Foaming agent  
A foaming agent having improved foaming performance comprised of a mixture of alkyl sulfates and alkyl ether sulfates which have the general formula: R (CH2 CH2 O)y --SO3 M (I) wherein R is a...
5173364 Glass fibre reinforced plasterboard and a method for producing same  
Glass fibre reinforced plasterboard comprising a gypsum matrix of high density with embedded staple glass fibres therewith forming a pressure resistant solid body frame in which are embedded a...
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...
4863519 Method of making blocks, beams, pipes and building elements that can be sawn and nailed  
A method of manufacturing a lightweight building element comprises providing a lightweight aggregate of particles having diameters in the range of 2 mm to 20 mm, mixing the particles together to...
4828624 Cement grinding aid compositions  
Cement clinkers are ground in an aqueous environment using as a grinding aid, a composition comprising: TBL ______________________________________ Ingredients Percent by Weight...
4724242 Open cell foamed gypsum absorbents  
An open-cell, foamed gypsum absorbent for fluids is prepared by foaming a slurry containing plaster, carbonaceous material, and a weak acid. Some of the preferred carbonaceous material include...
4678515 Foam generating compositions  
The sodium and/or ammonium salts of a mixture of n-alkyl oxyethylated sulfuric acids in aqueous solution, wherein all the compounds have the same molecular formula CH3 (CH2)x CH2 (OCH2 CH2)y OSO3...
4612333 Foamed gypsum filter containing carbonaceous material  
A filter composition is formed from a foamed gypsum combined with fine particulate carbonaceous material such as activated carbon, dried blood and comminuted vegetable matter. The combination of...
4523954 Process for manufacturing cellular plaster and molded plaster articles  
A process for manufacturing a cellular plaster with plaster obtained by calcining phosphogypsum, comprising mixing dry plaster with a previously prepared aqueous foam and with about 0.1-5% by...
4415366 Lightweight cement slurry and method of use  
A foamed, thixotropic hydraulic cement slurry and method of using same in cementing subterranean voids. This lightweight cement slurry is particularly useful for cementing in oil or gas wellbores...
4411701 Waterproof gypsum molded product  
The present invention provides a gypsum molded product having excellent waterproof properties without impaired strength by adding alkaline metal alkylsiliconates or phenylsiliconates together with...
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...

Matches 1 - 50 out of 94 1 2 >