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Calcium Sulfate

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


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Mixed powder for iron-based powder metallurgy, method for producing same, sintered body produced using same, ...
Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)
May 24, 2018 - N°20180141117

The mixed powder for iron-based powder metallurgy of the present invention comprises an iron-based powder and a cas raw material powder containing one or more selected from the group consisting of calcium sulfate anhydrite iii, calcium sulfate anhydrite ii, calcium sulfate dihydrate, calcium sulfide, and calcium sulfate hemihydrate. The cas raw material powder is coated with at least one selected ...
Waterproof silicone emulsion, waterproof board exhibiting excellent crack resistance, and manufacturing method therefor
Kcc Corporation
May 03, 2018 - N°20180118940

Embodiments relate to a waterproof silicone emulsion, a waterproof board exhibiting excellent crack resistance, and a manufacturing method therefor and, more specifically, to a waterproof silicone emulsion including a silicone oil and an emulsifier, a waterproof board including a cured product of an aqueous gypsum slurry, and a manufacturing method therefor. The aqueous gypsum slurry includes calcium sulfate hemihydrate, a ...
Gypsum-containing composition
Basf Se
May 03, 2018 - N°20180118624

The invention relates to a composition comprising at least one binder based on calcium sulfate and at least one polymer obtainable by polymerization of monomers based on alkoxylates of s-vinylthioalkanols. Furthermore a molding, in particular a gypsum plasterboard, a gypsum wallboard, a screed or a knifing filler, obtained by setting of the composition of the invention is disclosed..
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Construction chemical formulation
Uzin Utz Ag
April 19, 2018 - N°20180105466

The present invention relates to a quick and low-stress setting chemical formulation for construction, containing at least one binding agent on the basis of calcium sulfate, at least an ettringite-forming agent, at least one activator, at least one filler, at least one redispersable dispersion powder and optionally additives and to the use of the chemical formulation for construction for producing ...
Mixed powder for iron-based powder metallurgy, method for producing same, and sintered body produced using ...
Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)
April 19, 2018 - N°20180104739

The mixed powder for iron-based powder metallurgy of the present invention comprises a powder containing calcium sulfate anhydrite ii such that the cas weight ratio after sintering is 0.01 wt % or more to 0.1 wt % or less. The powder containing calcium sulfate anhydrite ii preferably has a volume-average particle size of 0.1 μm or more to 60 μm or less ...
Method for making a lightweight gypsum composition with internally generated foam and products made from ...
United States Gypsum Company
April 12, 2018 - N°20180099908

A gypsum-based composition of calcium sulfate hemihydrate with (a) alum and calcium carbonate and/or (b) zeolite and sodium percarbonate for making foamed gypsum slurry. A method to make foamed gypsum slurry from the composition.
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Bone void filler having calcium coatings
Warsaw Orthopedic, Inc.
April 05, 2018 - N°20180093014

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.
Water resistant flooring underlayment
Maxxon Corporation
March 22, 2018 - N°20180080234

A method of installing a flooring structure is disclosed. The method includes providing an acoustic insulating layer over a sub-floor layer.
Flame retardant composition, methods of manufacture thereof and articles comprising the same
Sabic Global Technologies B.v.
March 08, 2018 - N°20180066135

Disclosed herein is a composition comprising 20 to 80 wt % of an organic polymer; 0.1 to 30 wt % of flame retardant that comprises a phosphorus containing flame retardant and/or a nitrogen containing flame retardant; and 0.1 to 50 wt % of calcium sulfate. Disclosed herein is a method comprising blending 20 to 80 wt % of an organic polymer; 0.1 to 30 wt % of flame retardant package that comprises a phosphorus ...
Exhaust gas clean-up and recovery system for fossil fuel fired power plant
Millenium Synthfuels Corporation
February 08, 2018 - N°20180036676

A fossil fuel fired power plant exhaust gas clean-up and recovery system is provided to remove detrimental compounds/elements from the exhaust gas emitting from the power plant to protect the environment and to recover useful products from the cleaning solution. This is accomplished by directing the exhaust gas from the fossil fuel fired power plant through a single wet ...
Bone repairing material and method for producing thereof
3d Global Biotech Inc.
January 18, 2018 - N°20180015206

A bone repairing material comprises a composition including an α-calcium sulfate hemihydrate and an autologous bone powder, wherein the bone repairing material contains 20˜60 weight percent of the autologous bone powder and 40˜80 weight percent of the α-calcium sulfate hemihydrate. The bone repairing material has a particle size in the range of 50˜1,000 &#...
Method for producing alpha-calcium sulfate hemihydrate bone graft
3d Global Biotech Inc.
January 18, 2018 - N°20180015200

The present invention discloses a method for producing the alpha-calcium sulfate hemihydrate bone graft, which comprises the following steps: mixing calcium sulfate dihydrate and deionized water to produce calcium sulfate dihydrate paste; stirring and heating the calcium sulfate dihydrate paste at least 160° c. Within 100-350 psi to produce the conversion calcium sulfate hemihydrate, filtering the conversion calcium sulfate hemihydrate ...
Liquid gypsum set accelerator
National Gypsum Properties, Llc
January 11, 2018 - N°20180009713

A liquid accelerator composition for accelerating the setting reaction of calcium sulfate hemihydrate and water and methods of forming a liquid gypsum accelerator are provided. The liquid accelerator composition includes a liquid media in which calcium sulfate dihydrate is less than fully soluble and a ground product of a mill grinding of a mixture comprising calcium sulfate dihydrate..
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Gypsum fiber board and method for producing gypsum fiber boards
Knauf Gips Kg
December 21, 2017 - N°20170362126

A gypsum fiber board produced in a siempelkamp dry-process, comprising 75 wt % to 90 wt % (relative to the total dry mix) of calcium sulfate hemi-hydrate and 10 wt % to 25 wt % (relative to the total dry mix) paper fibers, wherein the calcium sulfate hemi-hydrate is a mixture of α-calcium sulfate hemi-hydrate and β-calcium sulfate hemi-hydrate, wherein the content of ...
Pourable compositions
United States Gypsum Company
December 07, 2017 - N°20170349492

The invention provides a pourable composition comprising calcium sulfate hemihydrate; optionally, cement; one or more anionic surfactants selected from alkyl anionic surfactants, alkyl ether anionic surfactants, alkyl aryl anionic surfactants, and combinations thereof; one or more set accelerator additives; and water.. .
Gypsum slurries with linear polycarboxylate dispersants
United States Gypsum Company
November 23, 2017 - N°20170334778

A gypsum slurry includes water, a hydraulic component including calcium sulfate hemihydrate and a linear polycarboxylate dispersant. The linear polycarboxylate anionic dispersant includes a first monomeric repeating unit and a second monomeric repeating unit.
Antifouling coating composition, antifouling coating film formed using said composition, and coated article having antifouling ...
October 26, 2017 - N°20170306168

(here, r1 is a hydrogen atom or a methyl group; and r2, r3, and r4 are the same or different from each other and each represents a c3-6 alkyl group branched at the α-position or a phenyl group) and (b) an ethylenically unsaturated monomer copolymerizable with the triorganosilyl (meth)acrylate monomer; and (b) calcium sulfate hydrate.. .
Production of high strength hydrochloric acid from calcium chloride feed streams by crystallization
The Royal Institution For The Advancement Of Learning/mcgill University
October 12, 2017 - N°20170291826

The present relates to a method for producing calcium sulfate solid crystals and hydrochloric acid (hcl) from a calcium chloride solution comprising the steps of feeding a continuous stirred-tank reactor with a calcium chloride solution, sulfuric acid and water; mixing the calcium chloride solution, sulfuric acid and water in the reactor; and maintaining the reactor a temperature of less than ...
Gypsum based compositions and processes for making and using same
Georgia-pacific Gypsum Llc
September 21, 2017 - N°20170267587

Gypsum based compositions, processes for making same, and articles made therefrom. In one example, the gypsum based composition can include about 1.5 wt % to about 3 wt % of a starch, about 11 wt % to about 14 wt % of a paper, about 0.7 wt % to about 2.3 wt % of vermiculite, about 1.3 wt % to about 3 wt % of a plurality of reinforcing fibers, about 7 wt % to about 10 wt % of ...
Method for preparing a-calcium sulfate hemihydrate with calcium sulfate dihydrate
Shandong Borui New Material Technology Co., Ltd
August 31, 2017 - N°20170247262

A method for preparing α-calcium sulfate hemihydrate with calcium sulfate dihydrate includes steps of: uniformly mixing the calcium sulfate dihydrate with an additive solution, and obtaining a mixture, wherein weight percentages of the calcium sulfate dihydrate and the additive solution in the mixture are respectively 90.00-95.00% and 5.00-10.00%, and the additive solution contains water, inorganic salt, organic salt, ...
Cementitious binders containing pozzolanic materials
Green Binder Technologies Ltd.
July 20, 2017 - N°20170204007

A cementitious composition including: a binder containing (a) 60-94%, by weight, of at least one pozzolanic material; (b) at least 0.5% calcium sulfoaluminate (csa), by weight; (c) 1.2-11% by weight, expressed as so3, of at least one inorganic sulfate selected from the group of sulfates consisting of a calcium sulfate hemihydrate, an anhydrous calcium sulfate, a calcium sulfate dihydrate, a sodium ...
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