Calcium Sulfate

Calcium Sulfate-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).

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Bone void filler having calcium coatings
Warsaw Orthopedic, Inc.
May 04, 2017 - N°20170119926

A bone void filler material is provided for sustained release of a therapeutic agent. The bone void filler material comprising a biodegradable matrix having ceramic cement beads comprising calcium sulfate, and ceramic particles disposed within the matrix. The ceramic cement beads are loaded with the therapeutic agent to cause sustained release of the therapeutic agent. Methods of use are also ...
Freeze-thaw durable geopolymer compositions and methods for making same
United States Gypsum Company
April 27, 2017 - N°20170113969

A freeze-thaw durable, dimensionally stable, geopolymer composition including: cementitious reactive powder including thermally activated aluminosilicate mineral, aluminate cement preferably selected from at least one of calcium sulfoaluminate cement and calcium aluminate cement, and calcium sulfate selected from at least one of calcium sulfate dihydrate, calcium sulfate hemihydrate, and anhydrous calcium sulfate; alkali metal chemical activator; and a freeze-thaw durability component ...
Cement and calcium sulfate based binder composition
Basf Se
April 20, 2017 - N°20170107153

The invention concerns a composition containing a) 2 to 80 weight % of ordinary portland cement with respect to the total weight of the composition b) 2 to 80 weight % of a calcium sulfate based binder with respect to the total weight of the composition, with the proviso that the weight ratio of a) ordinary portland cement to b) calcium sulfate based binder is from 95/5 ...
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High strength synthetic bone for bone replacement for increasing ompressive strength and facilitating blood circulation, ...
Ossein Co., Ltd.
March 09, 2017 - N°20170065740

The present invention relates to a high strength synthetic bone for bone replacement for increasing compressive strength and facilitating blood circulation, and a manufacturing method therefor, and provides the high strength synthetic bone for bone replacement in which calcium sulfate hemihydrate (csh) and nacl, in a particle state, penetrate into the pores of a porous inorganic material such as ...
Drilling fluid and method for drilling in coal-containing formations
Canadian Energy Services L.p.
March 02, 2017 - N°20170058178

A drilling fluid and method for drilling in a coal containing formation with a mixed metal-viscosified drilling fluid including at least 0. 05% calcium sulfate.
Method for purifying raw phosphoric acid (e.g. mga acid) by adding ashes originating from ...
Remondis Aqua Gmbh & Co. Kg
February 23, 2017 - N°20170050848

The present invention relates to a method for purifying raw phosphoric acid by adding ashes originating from waste incineration plants, as well as calcium hydroxide and at least one sulfide, and by wet-chemical digestion for obtaining (producing) calcium sulfate, pure phosphoric acid, metal salt solution and/or calcium hydrogen phosphates (e. G. Triple superphosphate).
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Calcium sulfate composition comprising an additive
Basf Se
January 26, 2017 - N°20170022108

The invention relates to a composition comprising at least 10 wt. % of a binder based on calcium sulfate and 0. 005 to 5 wt. % of an additive made of at least one water-soluble salt of a multivalent metal cation, at least one compound which is capable of releasing an anion that forms a poorly soluble salt together with the multivalent metal cation, and at ...
Struvite-k and syngenite composition for use in building materials
Certainteed Gypsum, Inc.
January 12, 2017 - N°20170008804

A composition and process for the manufacture thereof for use in a hybrid building material comprising at least in part syngenite (k2ca(so4)2. H2o) and struvite-k (kmgpo4. 6h2o). Specified constituents, including magnesium oxide (mgo), monopotassium phosphate (mkp) and stucco (calcium sulfate hemihydrate) are mixed in predetermined ratios and the reaction proceeds through multiple phases reactions which at ...
Coated building panels and articles containing calcium sulfate hemihydrate
United States Gypsum Company
December 08, 2016 - N°20160355438

A method of finishing an interior wall includes the steps of preparing a substrate of building panels comprising gypsum, cement or combinations thereof, said substrate having a surface, followed by applying a coating to the substrate, said coating comprising 1-30% by weight of a latex emulsion binder, 30-80% by weight calcium sulfate hemihydrate, up to about 8% by weight of a ...
Multiphasic bone graft substitute material
Agnovos Healthcare, Llc
December 08, 2016 - N°20160354514

The invention provides a particulate composition adapted for forming a bone graft substitute cement upon mixing with an aqueous solution, comprising i) a calcium sulfate hemihydrate powder, wherein the calcium sulfate hemihydrate is present at a concentration of at least about 50 weight percent based on the total weight of the particulate composition; ii) a monocalcium phosphate monohydrate powder; iii) a ...
Cementitious patch compositions and methods
United States Gypsum Company
November 24, 2016 - N°20160340251

A cementitious hydrating patch composition is provided with improved strength and abrasion resistance. The patch comprises portland cement in the amount from 2% to 10%, calcium sulfate hemihydrate in the amount from 2% to 30%, gypsum in the amount from 0% to 15%, calcium aluminate cement in the amount from 15% to 40%, calcium carbonate in the amount from 0% to 40%, at least one filler in the amount from 1% ...
Multiphasic bone graft substitute
Wright Medical Technology, Inc.
October 20, 2016 - N°20160303276

The invention provides a particulate composition adapted for forming a bone graft substitute cement upon mixing with an aqueous solution, comprising i) a calcium sulfate hemihydrate powder, wherein the calcium sulfate hemihydrate is present at a concentration of at least about 50 weight percent based on the total weight of the particulate composition; ii) a monocalcium phosphate monohydrate powder; iii) a ...
Liquid pothole filler composition and method
Wright Medical Technology, Inc.
September 22, 2016 - N°20160272815

A two component liquid pothole filler system comprises an anionic aqueous asphalt and chloroprene emulsion liquid component, which is mixed in situ with a solid component comprising crumb rubber, and in a preferable variation, a powdered mineral material, which is preferably calcined clay powder. The solid component also preferably includes a catalytic quantity of an activator, preferably a hydrous calcium ...
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Struvite-k and syngenite composition for use in building materials
Certainteed Gypsum, Inc.
August 18, 2016 - N°20160236979

A composition and process for manufacture thereof used in hybrid inventive building materials comprising syngenite (k2ca(so4)2. H2o) and struvite-k (kmgpo4. 6h2o). Starting constituents include magnesium oxide (mgo), monopotassium phosphate (mkp) and stucco (calcium sulfate hemihydrate), mixed in predetermined ratios, cause reactions to proceed through multiple phases, which reactions variously are proceeding simultaneously and in parallel. Variables, ...
Dimensionally stable geopolymer composition and method
United States Gypsum Company
July 28, 2016 - N°20160214897

A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar, patching materials for road repairs and other repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium sulfoaluminate cement, a calcium sulfate and ...
Calcium sulfoaluminate composite binders
Heidelbergcement Ag
July 28, 2016 - N°20160214892

The present invention relates to composite binders containing calcium sulfoaluminate cement and supplementary cementitious material, wherein a weight ratio of calcium sulfate to the sum of ye'elimite, aluminates and ferrites (r$/(y+a+f)) ranges from 0. 5 to 0. 85, to a method of manufacturing them comprising the steps: a) providing at least one calcium sulfoaluminate cement b) providing at least one supplementary ...
Scale detection device and method for concentrating device, and water reclamation processing treatment system
Mitsubishi Heavy Industries, Ltd.
July 21, 2016 - N°20160207811

A scale detection device of a concentrating device comprises: a reverse osmosis membrane device 13 that is a concentrating device including a reverse osmosis membrane 13a, which is a filtering membrane for concentrating salt in a water to be treated 11, containing at least calcium sulfate to obtain reclaimed water 12; and a scale detection unit 15 disposed in a branched line l14 branched ...
Dimensionally stable geopolymer composition and method
United States Gypsum Company
July 07, 2016 - N°20160194247

A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar and repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium aluminate cement, a calcium sulfate and a chemical activator with water
Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for ...
United States Gypsum Company
June 23, 2016 - N°20160177171

The present invention is related to the obtaining and using of multifunctional foaming compositions with wettability modifying, corrosion inhibitory and inhibitory/dispersants mineral scale properties with high stability in environments of high temperature, high pressure and tolerance to high concentrations of divalent ions such as calcium, magnesium, strontium and barium. The multifunctional foaming compositions are obtained from the combination of ...
Combination of ternary binders with aqueous epoxy resin system
Sika Technology Ag
June 02, 2016 - N°20160152522

A multi-component composition is described that includes: a) a binder component (a) including at least one epoxy resin, b) a hardener component (b) including at least one amine compound as an amine hardener, and c) a solid component (c) including a hydraulic inorganic binder, wherein the hydraulic inorganic binder is a ternary binder composed of aluminous cement, calcium sulfate, and ...
Hematite manufacturing process and hematite manufactured by same
Sumitomo Metal Mining Co., Ltd.
May 19, 2016 - N°20160137524

Magnesium oxide produced by a process is used as a neutralizing agent for preliminary neutralization treatment of a leached slurry obtained by leaching a nickel oxide ore at a high temperature and pressure with sulfuric acid added. A neutralizing agent is added to a leachate, obtained by leaching a nickel oxide ore, to separate impurities, and a sulfurizing agent is ...