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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4710. Отображено 100.
16-02-2012 дата публикации

Dispersant Comprising Copolymer Mixture

Номер: US20120041104A1
Автор: Barbara Wimmer, Christian Scholz, Klaus Lorenz, Mario Vierle, Petra Wagner
Принадлежит: CONSTRUCTION RESEARCH AND TECHNOLOGY GmbH

The invention relates to a polymer composition containing 3 to 95% by weight of a copolymer H and 3 to 95% by weight of a copolymer K, the copolymers H and K each having polyether macromonomer structural units and acid monomer structural units, which are present in the copolymers H and K in each case in a molar ratio of 1:20 to 1:1, and at least 20 mol % of all structural units of the copolymer H and at least 25 mol % of all structural units of the copolymer K being present in each case in the form of acid monomer structural units, the polyether macromonomer structural units of the copolymers H and K having side chains containing in each case at least 5 ether oxygen atoms, the number of ether oxygen atoms per side chain of the polyether macromonomer structural units of the copolymers H and K varying in each case in such a way that the corresponding frequency distribution diagrams, in which the number of ether oxygen atoms per side chain of a polyether macromonomer structural unit is plotted in each case along the abscissae and the respectively associated frequencies for the copolymers H or K are plotted in each case along the ordinates, contain in each case at least 2 maxima whose abscissa values differ in each case by more than 7 ether oxygen atoms from one another, the frequency distribution diagrams of the copolymers H and K differing from one another in that the abscissa value of at least one maximum of the copolymer H differs in each case by more than 5 ether oxygen atoms from the abscissa values of all maxima of the copolymer K and/or that the arithmetic means of the ether oxygen atoms of the polyether macromonomer structural units of the copolymers H and K differ from one another by more than 5 ether oxygen atoms.

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Номер записи: 1
16-02-2012 дата публикации

Dispersing Agent Containing Copolymer Mixture

Номер: US20120041105A1
Автор: Angelika Hartl, Barbara Wimmer, Christian Scholz, Klaus Lorenz, Manfred Bichler, Mario Vierle, Martin Winklbauer, Petra Wagner, Silke Flakus
Принадлежит: CONSTRUCTION RESEARCH AND TECHNOLOGY GmbH

The invention relates to a polymer composition containing 3 to 90% by weight of a copolymer H and 3 to 90% by weight of a copolymer K, the copolymers H and K each having polyether macromonomer structural units and acid monomer structural units, which are present in the copolymers H and K in each case in a molar ratio of 1:20 to 1:1, and at least 20 mol % of all structural units of the copolymer H and at least 25 mol % of all structural units of the copolymer K being present in each case in the form of acid monomer structural units, at least 60 mol % of the polyether macromonomer structural units of the copolymer H being represented by the isoprenol polyether derivative structural units and at least 60 mol % of the polyether macromonomer structural units of the copolymer K being represented by the vinyloxy polyether derivative structural units.

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Номер записи: 2
27-09-2012 дата публикации

Use of high ratio aqueous alkali silicates for profile modification, water control and stabilization

Номер: US20120245062A1
Автор: Michael J. Mcdonald
Принадлежит: Individual

Soluble silicates are commonly used to block and strengthen permeable zones in subterranean formations. These applications include conformance for oil field, grouting for the construction industry and water shut-off for mining. It was discovered that set times and set properties could be improved by using novel, high ratio alkali silicates. Ratio being defined as the mol ratio of SiO 2 :Me 2 O, where Me is an alkali metal and is most commonly sodium or potassium (i.e. Na 2 O and K 2 O).

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Номер записи: 3
03-01-2013 дата публикации

Dispersant

Номер: US20130005862A1
Автор: Johann Goldbrunner, Klaus Prosiegel
Принадлежит: BASF CONSTRUCTION POLYMERS GMBH

A dispersant composition for construction compositions.

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Номер записи: 4
24-01-2013 дата публикации

Method for repairing concrete surfaces

Номер: US20130019562A1
Автор: Darryl F. Manuel
Принадлежит: Individual

Products and methods for treating imperfections in concrete surfaces, especially floors being polished, wherein the products are used with grinding equipment, and combine with concrete powder or fines to fill, e.g., cracks, holes and voids and blend with the existing color of the concrete surface thereby yielding a consistent, natural looking surface.

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Номер записи: 5
25-04-2013 дата публикации

Low weight and density fire-resistant gypsum panel

Номер: US20130101838A1
Автор: Qiang Yu, Srinivas Veeramasuneni, Weixin D. Song
Принадлежит: United States Gypsum Co

An about ⅝ inch to ¾ inch thick low weight, low density gypsum panel with fire resistance capabilities sufficient to provide a Thermal Insulation Index of at least 17.0 minutes which when subjected to U419 test procedures will not fail for at least 30 minutes and, in selected embodiments, also has outstanding water resistance properties.

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Номер записи: 6
06-03-2014 дата публикации

Dispersants having biobased compounds

Номер: US20140066347A1
Автор: Bruce R. Sebree, Shireen S. Baseeth, Teodora R. Tabuena-Salyers
Принадлежит: Archer Daniels Midland Co

The present disclosure is directed to compositions having lecithin and an organic acid and related methods. The disclosed compositions may also include one or more co-surfactants such as anionic surfactants and/or non-ionic surfactants, and may be used as a dispersant.

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Номер записи: 7
07-01-2021 дата публикации

Producing Cementitious Materials with Improved Hydrophobicity and Strength Using Reclaimed Waste Substances

Номер: US20210002173A1
Автор: CHEN Chi-Yao, Lee Fu-Ming, Lee John, Lee Maw-Tien, Shen Zih-Yao
Принадлежит: AllNew Chemical Technology Company

A hydrophobic admixture, for cementitious materials such as cement paste, mortar, and concrete, includes solid polymer particles with a coating of hydrophobic agent and surfactant. The solid polymer particles adhere to exterior surfaces of hydrated cement particles in the cement matrix. The solid polymer particles deliver the hydrophobic agent into the cement matrix which is hydrophilic. The hydrophobic agents are distributed uniformly throughout the cement matrix. The solid polymer particles can be crumb rubber particles derived from waste rubber tires, recycled plastics and similar solid materials. The hydrophobic liquid agent is derived from waste lubricant oil, spent motor oil, base oil, esters of fatty acids, vegetable oil and the like. Fine particles such as activated carbon, silica fume and spent catalyst can be employed to fill the large pores or cracks that develop in the cementitious matrix. The cured cementitious materials exhibit high contact angles and high compressive strengths. 1. A set cementitious composition , that comprises cement paste , mortar , or concrete , and which comprises a cement mixture with hydrated cement particles dispersed therein and which comprises solid polymer particles that have a surface coating comprising a hydrophobic agent , wherein the solid polymer particles adhere to exterior surfaces of the hydrated cement particles , (ii) a surfactant that is blended with the hydrophobic agent and (iii) fine particles that are selected from the group consisting of activated carbon , silica fume , spent catalyst , and mixtures thereof and that fill pores or cracks in the composition.2. (canceled)3. The set cementitious composition of wherein the composition has an exterior surface which has a contact angle of at least 45 degrees.4. The set cementitious composition of wherein the composition has a compressive strength of at least 15 to 50 MPa.5. The set cementitious composition of wherein the cement mixture is prepared from a ...

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Номер записи: 8
04-01-2018 дата публикации

METHODS AND PRODUCT FOR FORMING LINES UTILIZING LIQUID ACRYLIC COPOLYMER SOLUTION

Номер: US20180002477A1
Автор: Karol Jason D.
Принадлежит: LIQUID LINES, LLC

A liquid water-based solution for application of temporary floor markings on a polyurethane coated floor and a method of applying the same is disclosed. According to one aspect, the solution comprises 5-15% by weight of an acrylic copolymer, 1%-2% propylene glycol, 0.5%-2% dipropylene glycol mono-methyl-ether, 2-8% of titanium dioxide; and 1-5% of ethelyne glycol. The solution is dispensable through a foam applicator so that it can be used to form temporary lines for recreational and athletic activities. The solution has a drying time when applied to the polyurethane floor of under five minutes and can remains water soluble for an extended period of time so that it can be removed without damaging the underlying surface. 1. A liquid water-based solution for application of temporary floor markings on a polyurethane coated floor , the solution comprising5-15% by weight of an acrylic copolymer,1%-2% propylene glycol,0.5%-2% dipropylene glycol mono-methyl-ether,2-8% of titanium dioxide; and1-5% of ethelyne glycol,wherein the solution is dispensable through a foam applicator, andwherein the solution has a drying time when applied to the polyurethane floor of under five minutes.2. The liquid water based solution of wherein the solution further comprises 1-5% of gum Arabic.3. The liquid water based solution of wherein the solution further comprises 1-2% of a leveling agent.4. A method of forming lines on a polyurethane coated wood surface claim 1 , the method comprising:determining a line marking plan based on a desired activity,applying a liquid water-based solution containing an acrylic copoloymer resin to the surface based on the determined line plan, wherein the water-based solution comprises 5-15% by weight of an acrylic copolymer, 1%-2% propylene glycol, 0.5%-2% dipropylene glycol mono-methyl-ether, 2-8% of titanium dioxide; and 1-5% of ethelyne glycol; andwaiting a prescribed drying time prior to commencing the activity, wherein the prescribed drying time is less ...

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Номер записи: 9
13-01-2022 дата публикации

Method To Design For Thickening Time Using Cementitious Blend Composition

Номер: US20220009845A1
Автор: John Paul Bir Singh, Siva Rama Krishna JANDHYALA, Thomas Jason Pisklak
Принадлежит: Halliburton Energy Services Inc

A method of designing a cement slurry may include: (a) selecting at least a cement and concentration thereof, water and concentration thereof, and, optionally, at least one supplementary cementitious material and a concentration thereof, such that a cement slurry comprising the cement, the water, and, if present, the at least one supplementary cementitious material, meet a density requirement; (b) calculating a thickening time of the cement slurry using a thickening time model; (c) comparing the thickening time of the cement slurry to a thickening time requirement, wherein steps (a)-(c) are repeated if the thickening time of the cement slurry does not meet or exceed the thickening time requirement, wherein the selecting comprises selecting different concentrations and/or different chemical identities for the cement and/or the supplementary cementitious material than previously selected, or step (d) is performed if the thickening time of the cement slurry meets or exceeds the thickening time requirement; and preparing the cement slurry.

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Номер записи: 10
14-01-2016 дата публикации

Thickener for hydraulic composition, one-component water-reducing agent, and preparation of hydraulic composition

Номер: US20160009599A1
Автор: Tsutomu Yamakawa
Принадлежит: Shin Etsu Chemical Co Ltd

The invention provides a thickener for hydraulic composition comprising (A) a water-soluble cellulose ether, (B) a defoamer, and (C) a gum. The thickener is combined with a hydraulic substance, an aggregate and water to form a hydraulic composition.

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Номер записи: 11
10-01-2019 дата публикации

PREPARATION METHOD FOR POLYMER AND APPLICATIONS THEREOF

Номер: US20190010286A1
Автор: FAN Shimin, LIU Jiaping, MA Jianfeng, Qi Shuai, RAN Qianping, WANG TAO, YANG Yong
Принадлежит:

The present invention provides a method for preparing a polymer and a use of the polymer. The resulting polymer is used as a dispersant for an aqueous dispersion of a hydraulic binder and/or a latent hydraulic binder, such that water-reducing rate is improved, and suitable control of air content can be achieved, thereby improving the strength of concrete. The method for preparing a polymer includes polycondensation of a polyether macromonomer A of a specific structure, a monomer B and an aldehyde C to obtain the polymer. The monomer B is phenylsulfonic acid, p-/o-aminophenylsulfonic acid, p-/o-hydroxylbenzoic acid, p-/o-aminobenzoic acid, p-/o-hydroxylphenylsulfonic acid, or a phosphoric acid group or phosphorous acid group-containing monomer of a specific structure. A molar ratio of the polyether macromonomer A and the monomer B is 1:(0.5 to 12). 2. The method for preparing a polymer of claim 1 , wherein the polymer has a weight average molecular weight of 4000 to 150000 claim 1 , preferably 8000 to 100000 claim 1 , more preferably 10000 to 40000.3. The method for preparing a polymer of claim 1 , wherein claim 1 ,{'sub': 2', 'f, 'Z is O or O(CH)O, f=1 to 3, more preferably f=1 to 2, most preferably Z is O;'}{'sub': 2', 'f, 'L is (CH), f=1 to 3;'}{'sub': 2', '2, 'Q is C2 to C4 alkylene, preferably C2 to C4 alkylene, more preferably CHCH;'}{'sup': '1', 'Ris H or a C1 to C3 alkyl, more preferably H;'}{'sup': '2', 'Ris H or a C1 to C3 alkyl, more preferably H;'}{'sup': '3', 'Ris a C1 to C3 alkyl, more preferably methyl;'}{'sup': 8', '8, 'X is NRor O, Ris a C1 to C3 alkyl, more preferably methyl or ethyl, most preferably methyl;'}{'sup': 7', '7, 'Y is OH or OR, Ris preferably a C1 to C3 alkyl, more preferably methyl or ethyl, most preferably methyl;'}K is a C1 to C3 alkylene; and{'sup': '5', 'Ris H, COOH or a C1 to C3 alkyl, more preferably H or COOH.'}4. The method for preparing a polymer of claim 3 , wherein the monomer B has a structural formula (IIa) or (IIb) in ...

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Номер записи: 12
10-01-2019 дата публикации

Overcoming the Retardation of Cement Hydration from Dispersing Agents used in Suspension of Additives

Номер: US20190010378A1
Автор: Dias Toledo Filho Romildo, JR. William Cecil, Mendoza Reales Oscar, Pearl, Ravi Krishna
Принадлежит: Halliburton Energy Services, Inc.

A method of cementing a subterranean formation includes forming a cement composition comprising cementitious material, an aqueous base fluid, a nano-reinforcement particle suspension comprising a surfactant; and pozzolanic material; introducing the cement composition into a subterranean formation; and allowing the cement composition to set in the subterranean formation. A method of making a cement composition includes combining cementitious material, an aqueous base fluid, a nano-reinforcement particle suspension comprising a surfactant, and a pozzolanic material, where the rate of hydration of the surfaces of the cementitious material is less retarded by the surfactant than an equivalent cement composition without pozzolanic material. 1. A method of making a well cement composition comprising:combining a cementitious material; an aqueous base fluid; a nano-reinforcement particle suspension comprising a surfactant; and a pozzolanic material, wherein the pozzolanic material is selected from the group consisting of micro-pozzolanic material, nano-pozzolanic material, and combinations thereof; andwherein the rate of hydration of the surfaces of the cementitious material is less retarded by the surfactant than an equivalent cement composition without pozzolanic material.2. The method of claim 1 , wherein the nano-reinforcement particles are at least one selected from single wall carbon nano tubes (SWCNT) claim 1 , multi-wall carbon nanotubes (MWCNT) claim 1 , and combinations thereof.3. The method of claim 1 , wherein the surfactant is an anionic surfactant.4. The method of claim 1 , wherein the nano-reinforcement particle suspension comprising a surfactant and pozzolanic material are combined before adding the cementitious material and aqueous base fluid.5. The method of claim 1 , wherein the nano-reinforcement particles are present in an amount of about 0.01% to about 3.0% by weight of cement.6. The method of claim 1 , wherein the pozzolanic material is at least one ...

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Номер записи: 13
10-01-2019 дата публикации

MICROMESH PROPPANT AND METHODS OF MAKING AND USING SAME

Номер: US20190010386A1
Автор: CONKLE Don
Принадлежит:

The present disclosure relates to a micromesh proppant for use in hydraulic fracturing of oil and gas wells. In one embodiment, a process for forming proppant particles includes providing a slurry comprising a ceramic raw material containing alumina, atomizing the slurry into droplets, coating seeds comprising alumina with the droplets to form green pellets, sintering the green pellets to form sintered pellets, and breaking the sintered pellets to form proppant particles comprising a sintered ceramic material and having a size of from about 150 mesh to about 500 mesh and a crush strength at 7,500 psi of from about 1% to about 20%. In one embodiment, a proppant particle includes a sintered ceramic material and having a size of from about 150 mesh to about 500 mesh and a crush strength at 7,500 psi of from about 1% to about 20%. 1. A process for forming proppant particles , comprising:providing a slurry comprising a ceramic raw material comprising alumina;atomizing the slurry into droplets;coating seeds comprising alumina with the droplets to form green pellets;sintering the green pellets to form sintered pellets; andbreaking the sintered pellets to form proppant particles comprising a sintered ceramic material and having a size of from about 150 mesh to about 500 mesh and a crush strength at 7,500 psi of from about 1% to about 20%.2. The process of claim 1 , wherein sintering comprises sintering the green pellets at a temperature of from about 1400° C. to about 1650° C.3. The process of claim 1 , wherein breaking is selected from crushing claim 1 , grinding claim 1 , pulverizing claim 1 , or milling.4. The process of claim 3 , wherein breaking comprises grinding at a pressure of 10 claim 3 ,000 psi or greater.5. The process of claim 4 , wherein breaking comprises grinding at a pressure of 20 claim 4 ,000 psi or greater.6. The process of claim 1 , wherein the proppant particles have a bulk density of from about 1.4 g/cmto about 2 g/cmand an apparent specific gravity ...

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Номер записи: 14
18-01-2018 дата публикации

DURABLE RAILWAY TIE

Номер: US20180016752A1
Автор: HERBERT Emily, LI Victor C.
Принадлежит:

A railway tie being constructed of an engineered cementitious composite (ECC) material having: (1) a minimum of 2% tensile ductility of ECC, (2) complete absence of alkali-silica reaction (ASR), (3) high fatigue resistance of ECC at least five times that of normal concrete, (4) self-healing ability of ECC requiring only water and air, and (5) customization of ECC for lower stiffness in the tie (60% that of normal concrete) and higher abrasion resistance in the seat (three times that of normal concrete). 1. A railway tie comprising: cement in the range of 500-700 kg/m3,', 'fly ash in the range of 600-800 kg/m3;', 'silica fume in the range of 0-100 kg/m3;', 'sand in the range of 350-550 kg/m3;', 'water in the range of 300-400 kg/m3;', 'polymer fiber in the range of 1-3% by volume;', 'superplasticizer in the range of 5-30 kg/m3; and', 'viscosity modifying admixture in the range of 0-30 kg/m3,, 'an elongated member being made of a non-prestressed, self-healing engineered cementitious composite material, said material having a mixture of compressive strength greater than 50 mpa;', 'first cracking tensile strength greater than 3 mpa;', 'ultimate tensile strength greater than 5 mpa;', 'tensile strain capacity greater than 1%;', 'flexural strength greater than 15 mpa; and', 'crack widths less than 100 μm., 'resulting in performance characteristics of2. The railway tie according to wherein the elongated member comprises an elongated body and at least one rail seat portion claim 1 , said at least one rail seat portion supporting a railway rail.3. The railway tie according to wherein the at least one rail seat portion being made of a self-healing engineered cementitious composite material having a compressive strength that is different from the elongated body.4. The railway tie according to wherein the at least one rail seat portion has a compressive strength greater than about 150 MPa.5. The railway tie according to claim 1 , further comprising:fly ash cenospheres in the ...

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Номер записи: 15
16-01-2020 дата публикации

Inorganic Foam Based On Geopolymers

Номер: US20200017410A1
Автор: Albrecht Gerhard, FEICHTENSCHLAGER Bernhard, GONZENBACH Urs, PETIT Pauline, STURZENEGGER Philip, TURCINSKAS Sarunas
Принадлежит:

The present invention relates to a process for preparing a particle-stabilized inorganic foam based on geopolymers, to a particle-stabilized inorganic foam based on geopolymers, to a cellular material obtainable by hardening and optionally drying the particle-stabilized inorganic foam based on geopolymers, and to a composition for preparing an inorganic foam formulation for providing a particle-stabilized inorganic foam based on geopolymers. 1. A process for preparing an inorganic foam comprising the steps of (i) at least one group of inorganic particles;', '(ii) at least one amphiphilic compound;', (iiia) at least one inorganic binder selected from the group consisting of blast furnace slag, microsilica, metakaolin, aluminosilicates, and mixtures thereof,', '(iiib) at least one alkaline activator selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, alkali metal aluminates, alkali metal silicates, and mixtures thereof;, '(iii) at least one inorganic binder mixture comprising'}, '(iv) water; and optionally', '(v) at least one additive; and, '(1) mixing'} 'wherein the at least one amphiphilic compound comprises amphiphilic compounds with at least one polar head group and at least one apolar tail group, wherein the at least one head group is selected from the group consisting of phosphates, phosphonates, sulfates, sulfonates, alcohols, amines, amides, pyrrolidines, gallates, and carboxylic acids; and', '(2) foaming the resulting foam formulation by chemical, physical or mechanical foaming,'}{'sub': 1', '8', '2, 'wherein the at least one tail group is selected from an aliphatic or an aromatic or a cyclic group with 2 to 8 carbon atoms, wherein the carbon atoms are optionally substituted with one or more, same or different substituents selected from C-C-alkyl, secondary —OH, and secondary —NH.'}2. The process according to claim 1 , wherein the at least one group of inorganic particles is selected from the group consisting of oxides ...

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Номер записи: 16
21-01-2021 дата публикации

PLASTICIZER DEDUSTING AGENTS FOR JOINT COMPOUNDS

Номер: US20210017082A1
Автор: Donovan Alexander J., KINCAID Tyler, NEGRI Robert H., Pelot David, PUNATI Naveen, Stevens Richard B.
Принадлежит: UNITED STATES GYPSUM COMPANY

A joint compound including calcium sulfate hemihydrate and/or at least one filler, wherein a total amount of the at least one filler and/or calcium sulfate hemihydrate is at least about 50 wt % of the joint compound on a dry (water-free) basis, preferably the filler comprises calcium carbonate, calcium sulfate dihydrate, or calcium sulfate anhydrite, or a mixture thereof; binder at up to about 15 wt % of the joint compound on a dry basis; polymer thickener at up to about 3 wt % of the joint compound on a dry basis; plasticizer dedusting agent at about 0.01 to about 3 wt % of the joint compound on a dry (water free) basis; and an additive up to about 10 wt % of the joint compound on a dry basis. 21. The joint compound of claim , wherein the plasticizer dedusting agent is about 0.05 to about 2 wt % of the joint compound on a dry (water free) basis.31. The joint compound of claim , wherein the joint compound is drying-type joint compound comprising the filler ,wherein the filler comprises a primary filler at about 50 to about 98 wt % of the joint compound on a dry basis and a secondary filler at 0 to about 25 wt % of the joint compound on a dry basis,wherein the primary filler comprises any of calcium carbonate, calcium sulfate dihydrate, calcium sulfate anhydrite, or a mixture thereof, andwherein the plasticizer dedusting agent is about 0.5 to 3 wt %, of the joint compound on a dry basis.41. The joint compound of claim , wherein the joint compound is drying-type joint compound comprising joint compound components and water ,wherein the joint compound components comprise the filler, the binder, the polymer thickener, the plasticizer dedusting agent, and the additive, the filler comprises a primary filler at about 50 to about 98 wt % of the drying-type joint compound on a dry basis, wherein the primary filler comprises one selected from the group consisting of calcium carbonate, calcium sulfate dihydrate, and calcium sulfate anhydrite, and a mixture thereof;', 'the ...

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Номер записи: 17
26-01-2017 дата публикации

Calcium sulfate composition comprising an additive

Номер: US20170022108A1
Автор: Harald Grassl, Martin Winklbauer, Oliver Mazanec, Torben Gaedt
Принадлежит: BASF SE

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 least one polymer dispersant which comprises anionic and/or anionogenic groups and polyether side chains. The invention further relates to a method for producing said composition and to the use thereof as a calcium sulfate flow screed, a flowable calcium sulfate filler compound, or an earth-moist calcium sulfate screed.

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Номер записи: 18
25-01-2018 дата публикации

MATERIALS AND METHODS OF USE AS ADDITIVES FOR OILWELL CEMENTING

Номер: US20180022981A1
Автор: Beetge Jan, JIANG LI, LEAL Franklin, SALINAS Elexander
Принадлежит:

The embodiments described herein generally relate to methods and chemical compositions for use with cementing processes. In one embodiment, a composition is provided comprising a random tetracopolymer having the formula styrene-butadiene-acrylic-fumaric, a polyvinyl acetate, and a nonionic surfactant. 1. A composition , comprisinga random tetracopolymer having the formula styrene-butadiene-acrylic-fumaric;a polyvinyl acetate; anda nonionic surfactant.2. The composition of claim 1 , wherein the tetracopolymer comprises:from about 25 to about 75 wt % of styrene momomer;from about 10 to about 40 wt % of butadiene monomer;from about 1 to about 10 wt % of acrylic acid monomer;from about 1 to about 10 wt % of fumaric acid monomer, wherein the total amount of the monomer is 100%.3. The composition of claim 1 , wherein the random tetracopolymer and the polyvinyl acetate are present in the composition at a mass ratio from about 1:10 to about 10:1.4. The composition of claim 1 , wherein the random tetracopolymer comprises a molecular weight range from about 10 claim 1 ,000 to about 5 claim 1 ,000 claim 1 ,000 Dalton.5. The composition of claim 4 , wherein the random tetracopolymer comprises a water insoluble compound in a powder form with a size distribution range from about 10 to about 500 microns.6. The composition of claim 1 , wherein the polyvinyl acetate comprises a molecular weight range from about 10 claim 1 ,000 to about 5 claim 1 ,000 claim 1 ,000 Dalton.7. The composition of claim 4 , wherein the polyvinyl acetate comprises a water insoluble compound in a powder form with a size distribution range between about 10 to about 500 microns.8. The composition of claim 1 , wherein the nonionic surfactant is disposed in a microporous carrier.9. The composition of claim 8 , wherein the microporous carrier is a material selected from the kaolin claim 8 , glutamate salt claim 8 , calcium carbonate claim 8 , and combinations thereof.10. The composition of claim 8 , wherein the ...

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Номер записи: 19
23-01-2020 дата публикации

SELF-REPAIRING CEMENT POLYMER COMPOSITES AND PROCESSES OF MAKING AND USING SAME

Номер: US20200024192A1
Автор: Childers M. Ian, Chun Jaehun, Fernandez Carlos A., Glezakou Vassiliki-Alexandra, Koech Phillip K., Nguyen Manh Thuong, Rod Kenton A., Um Wooyong
Принадлежит: BATTELLE MEMORIAL INSTITUTE

Examples of novel self-repairing cement-polymer composites and processes of making and using are detailed that address various problems in prior art cements. These matrices, compositions and materials that are more mechanically robust, thermally stable and chemically resistant and demonstrate better bonding to various structures and materials, than other self-healing cements known in the prior art. When in place under preselected conditions (the formulation of the slurry can be modified for optimal effectiveness under various conditions) the organic, cross linking and cement forming portions within the slurry form interconnecting chemical bonds and cures to form a self-repairing and self-re-adhering cement polymer composite matrix in the receiving location. 1. A self-repairing cement-polymer composition comprising:a cement-containing material;an unencapsulated epoxide having at least one disulfide (S—S) group therein, anda crosslinking agent;all combined to form a dynamically self-repairing cement polymer matrix that reforms chemical bonds between compounds when subjected to preselected conditions.2. The self-repairing cement-polymer composition of further comprising a phase separation inhibitor.3. The self-repairing cement-polymer composition of wherein the epoxide polymer comprises an epoxy-terminated polysulfide polymer; the crosslinking agent is a tetrathiol; and the phase separation inhibitor is a PEO surfactant.4. The self-repairing cement-polymer composition of wherein the phase separation inhibitor is a polymer having at least one terminal functional group selected from the group consisting of amines; thiols; epoxides; alcohols; amides; carboxylates; carbonyls; and combinations thereof claim 2 , that is reactive with the epoxide.5. The self-repairing cement-polymer composition of wherein the phase separation inhibitor is selected from the group consisting of poly(ethylene glycol) diglycidyl ethers (PEO); poly(ethylene) glycols (PEG); bisphenol diglycidyl ...

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Номер записи: 20
28-01-2021 дата публикации

CEMENT SLURRIES, CURED CEMENT AND METHODS OF MAKING AND USE THEREOF

Номер: US20210024414A1
Автор: Boul Peter J., Santra Ashok
Принадлежит: Saudi Arabian Oil Company

Cured cements, cement slurries, and methods of making cured cement and methods of using cement slurries are provided. The method of making a cured cement comprising: synthesizing nanomaterials via chemical vapor deposition on at least one of cement particles or cement additive particles to form nanomaterial particles, adding the nanomaterial particles to a cement slurry to form a modified cement slurry, and curing the modified cement slurry to form a cured cement, in which the nanomaterials are interconnected and form a conductive web within the cured cement. 1. A method of making a cured cement comprising:synthesizing nanomaterials via chemical vapor deposition on at least one of cement particles or cement additive particles to form nanomaterial particles,adding the nanomaterial particles to a cement slurry to form a modified cement slurry, andcuring the modified cement slurry to form a cured cement, in which the nanomaterials are interconnected and form a conductive web within the cured cement.2. The method of claim 1 , further comprising adding at least one of a dispersing agent or a surfactant to the cement slurry prior to adding the nanomaterial particles to the cement slurry.3. The method of claim 2 , in which the dispersing agent comprises polycarboxylate ether.4. The method of claim 2 , in which the surfactant comprises at least one of anionic surfactants claim 2 , cationic surfactants claim 2 , amphoteric surfactants claim 2 , zwitterionic surfactants claim 2 , nonionic surfactants claim 2 , or combinations thereof.5. The method of claim 1 , further comprising functionalizing the nanomaterials with at least one of magnetic or electric properties prior to adding the nanomaterial particles to the cement slurry.6. The method of claim 1 , in which the nanomaterials comprise at least one of nanotubes claim 1 , nanofibers claim 1 , or nanosheets.7. The method of claim 1 , in which the nanomaterials comprise at least one of nanosilica claim 1 , nanoalumina claim 1 ...

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Номер записи: 21
28-01-2021 дата публикации

METHOD FOR PRODUCING WELL DEFINED COMB POLYMERS

Номер: US20210024415A1
Автор: FRIEDERICH Markus, Hampel Christina, WEIDMANN Jürg, Zimmermann Jörg
Принадлежит: SIKA TECHNOLOGY AG

A method for producing improved comb polymers having a block or gradient structure. The comb polymers are highly suitable for dispersing fine powder. 1. A process for preparing comb polymers having block or gradient structure , wherein at least one section A of the comb polymer is formed by polymerizing a monomer mixture M comprising a polyalkylene glycol (meth)acrylate , wherein the monomer mixture M includes less than 2% by weight of (meth)acrylic acid , based on the weight of the polyalkylene glycol (meth)acrylate present in the monomer mixture M.2. The process as claimed in claim 1 , wherein the monomer mixture M includes less than 1.8% by weight of (meth)acrylic acid claim 1 , based on the weight of the polyalkylene glycol (meth)acrylate present in the monomer mixture M.3. The process as claimed in claim 1 , wherein the polyalkylene glycol (meth)acrylate has been prepared by a process in which neither (meth)acrylic acid nor the anhydride of (meth)acrylic acid is used.4. The process as claimed in claim 1 , wherein the polyalkylene glycol (meth)acrylate is obtained by transesterifying an alkyl (meth)acrylate with a polyalkylene glycol capped at one end or by alkoxylating a hydroxyalkyl(meth)acrylate.5. The process as claimed in claim 4 , wherein at the start of the transesterification reaction claim 4 , the molar ratio of alkyl (meth)acrylate to polyalkylene glycol capped at one end is 1:1 to 50:1.6. The process as claimed claim 4 , wherein claim 4 , during and/or after the transesterification claim 4 , excess alkyl (meth)acrylate is partly or fully removed from the reaction mixture.7. The process as claimed in claim 1 , wherein the monomer mixture M comprises the reaction mixture which is obtained by transesterifying an alkyl (meth)acrylate with a polyalkylene glycol capped at one end and includes claim 1 , besides the polyalkylene glycol (meth)acrylate claim 1 , at least one compound selected from the group comprising alkyl (meth)acrylate claim 1 , polyalkylene ...

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Номер записи: 22
02-02-2017 дата публикации

Neutral aqueous wax emulsions

Номер: US20170029332A1
Автор: Alex GONZALEZ, Amba Ayambem, Katie SANTULLO
Принадлежит: Henry Co LLC

Wax emulsions for the manufacture of wallboard include water; a lignosulfonic acid or a salt thereof; and at least one wax selected from the group consisting of slack wax, paraffin wax and montan wax. The emulsions may have a pH of between about 6.5 and 7.9. Such emulsions can provide enhanced moisture resistance to the wallboard.

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Номер записи: 23
04-02-2016 дата публикации

Polycarboxylic acid polymer for blending in cement

Номер: US20160031759A1
Автор: Mari Otani, Noboru Sakamoto, Tsutomu Yuasa
Принадлежит: NIPPON SHOKUBAI CO LTD

An object of the present invention is to provide a polycarboxylic acid polymer for blending in cement for a cement composition superior both in dispersion and dispersibility-retention. The object was achieved by providing the present invention of a polycarboxylic acid polymer for blending in cement, wherein (1) the molecular-weight distribution curve of the polycarboxylic acid polymer is drawn by measuring the molecular weight distribution thereof with gel permeation chromatography and plotting elution times on the abscissa, (2) a base line is drawn on the molecular-weight distribution curve, (3) the elution-starting time, elution-ending time, and peak-top time of the peak corresponding to the polymer component are respectively designated as Lh, Ln, and Mp; (4) Lm is calculated according to the following Formula (1): Lm =( Ln+Mp )/2  (1) (5) the peak area between the elution times Lm and Ln is designated as P 0 and the peak area between the elution times Lh and Mp as Q 0 , P 0 and Q 0 satisfying the following Formula (2): 15≦( P 0 ×100)/( P 0 +Q 0 )≦45  (2).

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Номер записи: 24
04-02-2016 дата публикации

USE OF COMPOUNDS CONTAINING ALUMINIUM OXIDE AND SILICON OXIDE FOR PRODUCING A HYDROPHILIC BUILDING PRODUCT

Номер: US20160031760A1
Автор: Degenkolb Mathias, Ellenrieder Florian, Gehrig Uwe, Kutschera Michael, Melchart Michael, Riedmiller Joachim, Voland Katja, Wache Steffen
Принадлежит:

The use of a binder system comprising compounds containing aluminium oxide and silicon oxide for producing a hydrophilic building product, characterized in that the sum of the oxides calculated as AlOand SiOin the binder system is ≧40% by weight, based on the water-free binder system, and the contact angle of an oil drop placed on the surface of the cured building product is ≧90°, where the contact angle determination is carried out under water, is proposed. The said hydrophilicity makes the building product easy to clean, with simple rinsing with water often being sufficient. 1. A method for producing a hydrophilic building product bycontacting with water, setting and curing, a binder system comprising compounds containing aluminum oxide and silicon oxide,wherein the binder system comprises hydraulic binder, latent hydraulic binder, and/or pozzolanic binder; and alkali metal silicate,wherein the hydraulic binder is selected from portland cement, aluminate cement and mixtures thereof,wherein the content of portland cement and/or aluminate cement in the binder system is ≦20% by weight, based on a water-free binder system,{'sub': 2', '3', '2, 'wherein the sum of the oxides calculated as AlOand SiOin the binder system is ≧40% by weight, based on the water-free binder system, and wherein the contact angle of an oil drop placed on the surface of the cured building product is ≧90°, where the contact angle determination is carried out under water.'}2. The method of claim 1 , wherein the sum of the oxides calculated as AlOand SiOin the binder system is ≧50% by weight based on the water-free binder system.3. The method of claim 1 , wherein the contact angle is ≧100°.4. The method of claim 1 , wherein the content of the oxides calculated as SiOin the binder system is ≧15% by weight claim 1 , based on the water-free binder system.5. The method of claim 1 , wherein the binder system further comprises compounds containing titanium oxide and/or zirconium oxide and the sum of the ...

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Номер записи: 25
01-02-2018 дата публикации

DISPERSANT COMPOSITION FOR HYDRAULIC COMPOSITION

Номер: US20180029935A1
Автор: KOYANAGI Koji, SAIDA Kazuya, SHIMODA Masaaki, TANAKA Shunya
Принадлежит: KAO CORPORATION

The present invention is a dispersant composition for a hydraulic composition, which includes (A) a polymer compound having a naphthalene ring-containing monomer unit and (B) a specific alkylene oxide added compound represented by the general formulas (B1) to (B3), wherein a molar ratio of a total amount of the component (B) to the naphthalene ring-containing monomer unit in the component (A) is 0.4% or more and 30% or less. 2. The dispersant composition for a hydraulic composition according to claim 1 , further comprising (C) an antifoaming agent.3. The dispersant composition for a hydraulic composition according to claim 1 , wherein the component (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof.5. The hydraulic composition according to claim 4 , further comprising (C) an antifoaming agent.6. The hydraulic composition according to claim 4 , wherein (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof.7. The hydraulic composition according to claim 4 , wherein (A) is contained in an amount of 0.001 parts by mass or more and 10 parts by mass or less relative to 100 parts by mass of the hydraulic powder.8. The hydraulic composition according to claim 4 , wherein (B) is contained in an amount of 0.0001 parts by mass or more and 10 parts by mass or less relative to 100 parts by mass of the hydraulic powder.11. (canceled)13. The dispersant composition for an inorganic powder according to claim 12 , further comprising (C) an antifoaming agent.14. The dispersant composition for an inorganic powder according to claim 12 , wherein (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof.15. (canceled)16. (canceled)17. The dispersant composition for a hydraulic composition according to claim 2 , wherein the component (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof.18. The hydraulic composition according to claim 5 , wherein (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof. ...

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Номер записи: 26
01-02-2018 дата публикации

DISPERSANT COMPOSITION FOR HYDRAULIC COMPOSITION

Номер: US20180029936A1
Автор: KOYANAGI Koji, SAIDA Kazuya, SHIMODA Masaaki, TANAKA Shunya
Принадлежит: KAO CORPORATION

The present invention is a dispersant composition for a hydraulic composition, which includes (A) a cement dispersant composed of a polymer having a naphthalene ring-containing monomer unit, and (B) one or more specific alkylene oxide-added compounds represented by the general formula (B1), wherein a molar ratio of a total amount of (B) to the naphthalene ring-containing monomer unit in (A) is 3% or more and 16% or less. 2. The dispersant composition for a hydraulic composition according to claim 1 , further comprising (C) an antifoaming agent.3. The dispersant composition for a hydraulic composition according to claim 2 , wherein (C) the antifoaming agent is a fatty acid ester-based antifoaming agent.4. The dispersant composition for a hydraulic composition according to claim 1 , wherein (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof.5. A hydraulic composition comprising a hydraulic powder claim 1 , water claim 1 , (A) a polymer compound having a naphthalene ring-containing monomer unit claim 1 , and (B) one or more compounds represented by the following general formula (B1) claim 1 , {'br': None, 'sub': 'n', 'R—X—(AO)—Y\u2003\u2003(B1)'}, 'wherein a molar ratio of a total amount of (B) to the naphthalene ring-containing monomer unit in (A) is 3% or more and 16% or less,'}wherein:R is an alkyl group having a carbon number of 10 or more and 22 or less, an alkenyl group having a carbon number of 10 or more and 22 or less, a benzyl phenyl group having a carbon number of 13 or more and 27 or less, or a styrenated phenyl group having a carbon number of 14 or more and 30 or less;X is O or COO;AO is an alkyleneoxy group having a carbon number of 2 or more and 4 or less;n represents an average number of AO moles added and is 1 or more and 200 or less; andY is a hydrogen atom or an alkyl group having a carbon number of 1 or more and 4 or less.6. The hydraulic composition according to claim 5 , further comprising (C) an antifoaming agent.7. The ...

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Номер записи: 27
01-02-2018 дата публикации

Overcoming the Retardation of Cement Hydration from Dispersing Agents used in Suspension of Additives

Номер: US20180030330A1
Автор: Dias Toledo Filho Romildo, JR. William Cecil, Mendoza Reales Oscar, Pearl, Ravi Krishna
Принадлежит: Halliburton Energy Services, Inc.

A method of cementing a subterranean formation includes forming a cement composition comprising cementitious material, an aqueous base fluid, a nano-reinforcement particle suspension comprising a surfactant; and pozzolanic material; introducing the cement composition into a subterranean formation; and allowing the cement composition to set in the subterranean formation. A method of making a cement composition includes combining cementitious material, an aqueous base fluid, a nano-reinforcement particle suspension comprising a surfactant, and a pozzolanic material, where the rate of hydration of the surfaces of the cementitious material is less retarded by the surfactant than an equivalent cement composition without pozzolanic material. 1. A method of cementing in a subterranean formation comprising:forming a cement composition comprising cementitious material, an aqueous base fluid, a nano-reinforcement particle suspension comprising a surfactant; and a pozzolanic material, wherein the pozzolanic material is selected from the group consisting of micro-pozzolanic material, nano-pozzolanic material, and combinations thereof;introducing the cement composition into a subterranean formation; andallowing the cement composition to set in the subterranean formation.2. The method of claim 1 , wherein the rate of hydration of the surfaces of the cementitious material is less retarded by the surfactant than an equivalent cement composition without pozzolanic material.3. The method of claim 1 , wherein in the forming claim 1 , the nano-reinforcement particle suspension comprising a surfactant and pozzolanic material are combined before adding the cementitious material and aqueous base fluid.4. The method of claim 1 , wherein the surfactant is an anionic surfactant.5. (canceled)6. The method of claim 1 , wherein the nano-reinforcement particles are at least one selected from single wall carbon nano tubes (SWCNT) claim 1 , multi-wall carbon nanotubes (MWCNT) claim 1 , and ...

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Номер записи: 28
17-02-2022 дата публикации

Method for Preparing Dispersant using Lignin Degradation Products

Номер: US20220048001A1
Автор: Huang Yingfang, Liu Minghua, LIU Yifan, Lv Yuancai, Wu Minya
Принадлежит:

A method for preparing dispersant using lignin degradation products includes preparation of lignin degradation products: degrading lignin which are used as raw materials using alkali through microwave-assisted activation at the presence of a metal oxide catalyst to obtain the lignin degradation products; and preparation of dispersant: preparing dispersant by molecularly reforming and chemically modifying the lignin degradation products obtained in the step of preparation of lignin degradation products. 1. A method for preparing dispersant using lignin degradation products , comprising the steps of:(1) preparation of lignin degradation products: degrading lignin which are used as raw materials using alkali through microwave-assisted activation at the presence of a metal oxide catalyst to obtain the lignin degradation products; and(2) preparation of dispersant: preparing dispersant by molecularly reforming and chemically modifying the lignin degradation products obtained in step (1).2. The method of claim 1 , wherein step (1) comprises the sub-steps of:1A) mixing lignin, an alkaline activator and the metal oxide catalyst by a mass ratio, suspending the mixed materials in an aqueous solution, and blending the mixture well;1B) letting the mixed substances to react for 0.5 to 2 h at a temperature within the range of 120-200° C. and microwave power within a range of 200-400 W; and1C) performing suction filtration after the reaction liquid gets cool to remove solid residues and obtain the lignin degradation products; andwherein step (2) comprises the sub-steps of:2A) adding monomers to the lignin degradation products obtained in step (1), letting the mixed materials to react for 30-50 min at a temperature within a range of 50-70° C., then slowly adding a cross-linking agent, stirring the substances to let a reaction proceed for 2.5-4.5 h at a temperature within the range of 80-100° C., and after the reaction ends, adding urea and isocyanate to let condensation reaction ...

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Номер записи: 29
17-02-2022 дата публикации

Construction material without a hydraulic binder

Номер: US20220048818A1
Автор: Coralie Brumaud, Gnanli Landrou, Guillaume Habert
Принадлежит: Eidgenoessische Technische Hochschule Zurich ETHZ

The invention relates to a method for producing a solid construction material which is preferably substantially free of hydraulic binder, comprising the steps of: a. extracting a mineral fraction comprising argillaceous particles of a soil; b. optionally adjusting the particle size of the mineral fraction extracted, in particular in relation to its clay, sand, gravel or loam content, if necessary; c. preparing a first aqueous grout from at least one part of the mineral fraction extracted and optionally adjusted in terms of particle size; d. adding a dispersant that can disperse the argillaceous particles in the first grout in order to obtain a second aqueous grout, e. adding a coagulant that can promote the agglomeration of the argillaceous particles in the second grout in order to obtain an aqueous construction material grout; f introducing the construction material grout into a formwork; and g. allowing the evaporation of the water contained in the material grout in order to obtain a solid construction material.

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Номер записи: 30
30-01-2020 дата публикации

CROSSLINKED POLYSACCHARIDE COMPOSITIONS AND CONCERTE BLENDS CONTAINING THE SAME

Номер: US20200031715A1
Автор: Blackmon Matthew B., Gandhi Sanket, Gardner Christopher, Landis Charles R., Madduri Ashoka V.R., Manning Lee A.
Принадлежит: HPPE, LLC

Compositions comprising crosslinked polysaccharides, particularly levan and/or dextran, may provide advantageous benefits when admixed with concrete blends. Suitable compositions may comprise a biologically sourced surfactant, and a crosslinked polysaccharide, in which the crosslinked polysaccharide comprises at least one crosslinking group bonded via ether linkages to a first polysaccharide chain and a second polysaccharide chain. Concrete blends may comprise such compositions, a cement and water. Methods for forming and/or using the concrete blends may comprise allowing the concrete blends to form a hardened mass. 1. A composition comprising:a biologically sourced surfactant; anda crosslinked polysaccharide, the crosslinked polysaccharide comprising at least one crosslinking group that is bonded via a first ether linkage to a first polysaccharide chain and via a second ether linkage to a second polysaccharide chain.2. The composition of claim 1 , where crosslinked polysaccharide comprises a polysaccharide selected from the group consisting of levan claim 1 , dextran claim 1 , guar gum claim 1 , scleroglucan claim 1 , welan claim 1 , pullulan claim 1 , xanthan gum claim 1 , schizophyllan claim 1 , cellulose claim 1 , and any combination thereof.3. The composition of claim 1 , wherein the at least one crosslinking group comprises a reaction product of epichlorohydrin with the first polysaccharide chain and the second polysaccharide chain.4. The composition of claim 3 , wherein the crosslinked polysaccharide comprises a levan claim 3 , a dextran claim 3 , or any combination thereof.5. The composition of claim 3 , wherein the crosslinked polysaccharide comprises a levan.6. The composition of claim 1 , wherein the at least one crosslinking group comprises a Calkyl moiety having a side chain hydroxyl group.7. The composition of claim 1 , wherein the biologically sourced surfactant comprises a rhamnolipid.8. The composition of claim 1 , wherein the crosslinked ...

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Номер записи: 31
08-02-2018 дата публикации

Downhole fluids and methods of use thereof

Номер: US20180037795A1
Автор: B. Raghava Reddy, Jay P. Deville, Lee J. Hall, Peter James Boul, Samuel J. Lewis, Trissa Joseph, Vivek S. Goel, Xiangnan YE, Xueyu Pang
Принадлежит: Halliburton Energy Services Inc

The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures.

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Номер записи: 32
07-02-2019 дата публикации

Aerated composite materials, methods of production and uses thereof

Номер: US20190039955A1
Автор: David Vuong, Deepak Ravikumar, Omkar Deo, Sadananda Sahu, Vahit Atakan
Принадлежит: Solidia Technologies Inc

The invention provides novel aerated composite materials that possess excellent physical and performance characteristics of aerated concretes, and methods of production and uses thereof. These composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption, desirable carbon footprint and minimal environmental impact.

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Номер записи: 33
06-02-2020 дата публикации

COMPOSITIONS FOR USE IN GEOSYNTHETIC LINERS

Номер: US20200039881A1
Автор: BELEV Anton, DEDELOUDIS Christos, KAPRALOU Christina, ZERVAKI Monika
Принадлежит:

Described herein is a composition for use in a geosynthetic clay liner, the composition comprising particles, at least some of which are discrete particles and each comprise: a compacted swelling clay, the clay having been compacted such that it at least partially surrounds a fluid-loss preventing polymer. Also described herein is a clay liner formed from the composition, a method for producing particles for use in a geosynthetic clay liner, and a method of forming a clay liner. 1. A method for producing particles for use in a geosynthetic clay liner , the method comprising:dry mixing first particles comprising a swelling clay and second particles comprising a fluid-loss preventing polymer,compacting the dry mixed first and second particles to form one or more compacted bodies,crushing the one or more compacted bodies to form discrete particles for use in a geosynthetic liner, at least some of the discrete particles comprising the swelling clay and the fluid-loss preventing polymer, wherein at least some of the fluid-loss preventing polymer is at least partially surrounded by the swelling clay.2. A method as claimed in claim 1 , wherein the swelling clay comprises a material selected from a smectite clay and a vermiculite clay.3. A method as claimed in claim 2 , wherein the smectite clay comprises a material selected from montmorillonite claim 2 , beidellite claim 2 , nontronite claim 2 , hectorite claim 2 , saponite claim 2 , sauconite and laponite.4. A method as claimed in claim 2 , wherein the smectite clay comprises a bentonite.5. A method as claimed in any one of the preceding claims claim 2 , wherein the fluid-loss preventing polymer is selected from an anionic polymer claim 2 , a non-ionic polymer and a cationic polymer.6. A method as claimed in any one of the preceding claims claim 2 , wherein the fluid-loss preventing polymer comprises an anionic polymer.7. A method as claimed in any one of the preceding claims claim 2 , wherein the fluid-loss preventing ...

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Номер записи: 34
06-02-2020 дата публикации

Geopolymer compositions and methods for making same

Номер: US20200039884A1
Автор: Ashish Dubey
Принадлежит: United States Gypsum Co

Geopolymer compositions utilizing fly ash and an inorganic mineral including alkaline earth metal oxide as cementitious reactive components. The inorganic mineral includes alkaline earth metal oxide preferably calcium oxide (also known as lime or quicklime) or magnesium oxide, or combinations thereof. The cementitious reactive powder may also optionally include one or more aluminous cements and one or more source of calcium sulfates. The cementitious reactive powders are activated with an alkali metal chemical activator selected from at least one member of the group consisting of an alkali metal salt and an alkali metal base. The inorganic minerals including alkaline earth metal oxide preferred in this invention have an alkaline earth metal oxide content preferably greater than 50 wt %, more preferably greater than 60 wt %, even more preferably greater than 70 wt %, and most preferably greater than 80 wt %, for example greater than 90 wt %. Methods for making the compositions are also disclosed.

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Номер записи: 35
06-02-2020 дата публикации

DEVELOPMENT OF ANTI-BIT BALLING FLUIDS

Номер: US20200040247A1
Автор: Al-Yami Abdullah, AlBahrani Hussain, AlHareth Nasser, Awadh Abdulla H., Ba Hamdan Abdulaziz A., Haidary Saleh A., Safran Ali, Wagle Vikrant
Принадлежит: Saudi Arabian Oil Company

Anti-bit balling drilling fluids and methods of making and using drilling fluids are provided. The anti-bit balling drilling fluid contains water, a clay-based component, and at least one of a surfactant having the formula: R—(OCH)—OH, where R is a hydrocarbyl group having from 10 to 20 carbon atoms and x is an integer from 1 and 10, or a polyethylene glycol having the formula: H—(O—CH—CH)—OH, where n is an integer from 1 to 50. Methods of making and using these drilling fluids are also provided. 2. The method of claim 1 , where the surfactant has an HLB of from 8 to 16.3. The method of claim 1 , where R is:an alkyl group comprising 12 to 15 carbons; oran alkenyl group comprising from 12 to 15 carbon atoms.4. The method of claim 1 , where x is from 5 to 10.5. The method of claim 1 , where the surfactant has an HLB of from 13 to 15.6. The method of claim 1 , where the surfactant comprises ethylene oxide condensate of branched isotridecyl alcohol.7. The method of claim 1 , where the polyethylene glycol has a weight average molecular weight of from 300 grams per mol (g/mol) to 500 g/mol claim 1 , as measured according to GPC.8. The method of claim 1 , where the drilling fluid comprises from 28 to 850 lb/bbl water based on total weight of the drilling fluid.9. The method of claim 1 , where the drilling fluid comprises from 28 to 720 lb/bbl of the clay-based component based on total weight of the drilling fluid.10. The method of claim 1 , where the drilling fluid comprises from 0.02 to 180 lb/bbl of the surfactant claim 1 , the polyethylene glycol claim 1 , or both claim 1 , based on total weight of the drilling fluid.11. The method of claim 1 , where the clay-based component comprises one or more components selected from the group consisting of lime (CaO) claim 1 , CaCO claim 1 , bentonite claim 1 , montmorillonite clay claim 1 , barium sulfate (barite) claim 1 , hematite (FeO) claim 1 , mullite (3AlO.2SiOor 2AlO.SiO) claim 1 , kaolin claim 1 , (AlSiO(OH)or kaolinite) ...

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Номер записи: 36
18-02-2021 дата публикации

Methods of making cement slurries and cured cement and use thereof

Номер: US20210047556A1
Автор: Ashok Santra, Peter J. Boul
Принадлежит: Saudi Arabian Oil Co

Cured cements, cement slurries, and methods of making cured cement and methods of using cement slurries are provided. The method of making a modified cement slurry includes adding particles comprising carbon nanotube sponges disposed on sacrificial templates to a cement slurry to form the modified cement slurry and allowing the sacrificial templates to disintegrate, thereby leaving the carbon nanotube sponges dispersed throughout the modified cement slurry.

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Номер записи: 37
18-02-2021 дата публикации

CEMENT SLURRIES, CURED CEMENT AND METHODS OF MAKING AND USE THEREOF

Номер: US20210047557A1
Автор: Boul Peter J., Santra Ashok
Принадлежит:

Cured cements, cement slurries, and methods of making cured cement and methods of using cement slurries are provided. The cured cement comprises cement, carbon nanotube sponges disposed within the cement, and conductive fibers disposed within the cement, in which the conductive fibers interconnect the carbon nanotube sponges and form a conductive web within the cured cement. 1. A cured cement comprising:cement,carbon nanotube sponges disposed within the cement, andconductive fibers disposed within the cement, in whichthe conductive fibers interconnect the carbon nanotube sponges and form a conductive web within the cured cement.2. The cured cement of claim 1 , in which the carbon nanotube sponges further comprise at least one of boron claim 1 , nitrogen claim 1 , or sulfur.3. The cured cement of claim 1 , in which the carbon nanotube sponges further comprise boron.4. The cured cement of claim 1 , in which the carbon nanotube sponges are functionalized with carbon nanotubes.5. The cured cement of claim 1 , in which the carbon nanotube sponges are capable of storing electric energy.6. The cured cement of claim 1 , in which the carbon nanotube sponges are randomly dispersed throughout the cured cement.7. The cured cement of claim 1 , in which the cement is hydraulic.8. The cured cement of claim 1 , in which the cement is non-hydraulic.9. The cured cement of claim 1 , in which the cement comprises at least one of Portland cement claim 1 , siliceous fly ash claim 1 , calcareous fly ash claim 1 , slag cement claim 1 , silica fume claim 1 , calcium hydroxide claim 1 , silicates claim 1 , belite (CaSiO) claim 1 , alite (CaSiO) claim 1 , tricalcium aluminate (CaAlO) claim 1 , tetracalcium aluminoferrite (CaAlFeO) claim 1 , brownmillerite (4CaO.AlO.FeO) claim 1 , gypsum (CaSO.2HO) claim 1 , sodium oxide claim 1 , potassium oxide claim 1 , limestone claim 1 , lime (calcium oxide) claim 1 , hexavalent chromium claim 1 , calcium aluminate claim 1 , and combinations thereof.10. ...

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Номер записи: 38
15-02-2018 дата публикации

Modifying Cementitious Compositions Using Ketone Alcohol Oil Waste

Номер: US20180044240A1
Автор: Byong-Wa Chun, Felek Jachimowicz, Hua Zhong, Shuqiang Zhang, Yin-Zar HNIN
Принадлежит: GCP Applied Technologies Inc

The present invention relates to modification of hydratable cement and cementitious materials, such as mortar cement and masonry or ready-mix concrete using ketone alcohol oil waste (“KAOW”) material, obtained as an alkali-soluble liquor waste byproduct at a certain stage in the commercial production of cyclohexanol and cyclohexanone. Preferred applications for KAOW are in chemical admixture formulations whereby KAOW is used to substitute for a portion of a cement dispersant such as sodium lignosulfonate, sodium gluconate, or other conventional dispersant. Another preferred use is in mortar cement and masonry concrete units such as blocks, pavers, curbstones, and other concrete masonry units wherein air void systems advantageously foster freeze-thaw durability.

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Номер записи: 39
16-02-2017 дата публикации

METHODS AND SYSTEMS FOR FOAM MINE FILL

Номер: US20170044898A1
Автор: HASSANI Faramarz, HEFNI Mohammed, KERMANI Mehrdad Fadaei, VATNE Dan
Принадлежит:

Mining provides our society with many of minerals, metals, and gemstones for a wide variety of applications from mundane items through to expensive jewelry. But the mining operations generate waste and large empty shafts and stopes within the ground. It would beneficial to provide a lightweight material for backfill which can provide safer working conditions for miners as well as advantages in respect of weight reduction, reducing water consumption, rheology improvement and cost minimization. Equally, it would be beneficial for the lightweight backfill material to include mining tailings to reduce the impact external to the mine. However, the inclusion of mine tailings into a foam is counter-intuitive as mine tailings are generally characterized by a high proportion of small particles with sharp edges. However, embodiments of the invention provide just such a foam based mine backfill material. 1. A method of providing backfill for a mine comprising:providing a first predetermined amount of tailings from the mine;providing a second predetermined amount of water;providing a third predetermined amount of a binder;providing a fourth predetermined amount of a foaming agent.2. The method according to claim 1 , further comprising:generating a foam comprising the foaming agent, air and a predetermined portion of the water; andmixing the generated foam, binder, tailings, and remainder of the water to form a filling material to backfill the mine.3. A filling material comprising:a first predetermined amount of tailings from a mine;a second predetermined amount of water;a third predetermined amount of a binder;a fourth predetermined amount of a foaming agent.4. (canceled)5. The method according to claim 1 , whereinthe tailings are from a mine mining at least one of gold, silver, copper, zinc, uranium, platinum, palladium, nickel, beryllium, cobalt, chromium, gallium, indium, lead, lithium, magnesium, manganese, molybdenum, aluminum, barium, antimony, bismuth, tantalum, titanium ...

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Номер записи: 40
13-02-2020 дата публикации

COPOLYMERS SUITABLE FOR PLASTICIZING INORGANIC BINDER SYSTEMS

Номер: US20200048149A1
Автор: Kraus Alexander, MITKINA Tatiana, PULKIN Maxim
Принадлежит:

The present invention relates to copolymers that comprise salicylic acid derivative structural units and structural units having free polyether side chains. The copolymers are suitable to plasticize inorganic binder systems, construction chemical compositions comprising said copolymers and the use of said copolymers as a plasticizer for inorganic binder systems. Binder systems with a reduced amount of Portland cement comprising at least one copolymer of the invention provide a better liquefaction and processability as compared to said binder systems without a copolymer of the invention. 2. The copolymer according to claim 1 , wherein t is 0.4. The copolymer according to claim 1 , wherein Ris H or CH claim 1 , Ris H claim 1 , Ris H or COOM claim 1 , x is 0 claim 1 , y is 1 claim 1 , and z is 1.5. The copolymer according to claim 1 , wherein Ris H or CH claim 1 , Rand Rare H claim 1 , x is 0 claim 1 , 1 or 2 claim 1 , y is 0 and z is 1.7. The copolymer according to claim 1 , wherein the copolymer comprises: [{'sup': 10', '12', '11', '13, 'sub': 3', '1', '4, 'a) Z is O and E and G together are a chemical bond, Rand Rare H, Ris H or CH, n is 1 or 2 and Ris H or an unbranched or branched C-Calkyl group; or'}, {'sub': 1', '6', '1', '4, 'sup': 10', '11', '12', '13, 'b) Z is O, E is an unbranched or branched C-Calkylene group, G is O, R, Rand Rare H, n is 0 and Ris H or an unbranched or branched C-Calkyl group; or'}], 'structural units (IIa), wherein{'sup': '25', 'structural units (IIc), wherein W is O or NR.'}8. The copolymer according to claim 7 , wherein in structural units (IIc) Rand Rare H claim 7 , Ris H or CHand Ris H or an unbranched or branched C-Calkyl group.9. The copolymer according to claim 1 , wherein the copolymer comprises structural units (IId) claim 1 , wherein Ris H claim 1 , Q is O claim 1 , and Ris H or an unbranched or branched C-Calkyl group.10. The copolymer according to claim 6 , wherein a is 5 to 135.12. A construction chemical composition ...

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Номер записи: 41
20-02-2020 дата публикации

Gypsum board from gypsum having high level of chloride salt and a perforated sheet and methods associated therewith

Номер: US20200055277A1
Автор: Charles W. Cochran, Mark Hemphill, Qinghua Li
Принадлежит: United States Gypsum Co

Gypsum boards formed from synthetic gypsum and other gypsum sources having high chloride salt concentrations. The gypsum boards may include a set gypsum board core layer between a front and back paper cover sheets. The back paper cover sheet has a plurality of perforations extending therethrough. Methods of making the gypsum boards, and a wall system for employing the gypsum boards, are also provided. The concentration of the chloride anion in aqueous gypsum slurry used to make the set gypsum board core layer and to perform the methods of the invention may range from about 500 ppm to about 3000 ppm, typically from about 500 ppm to about 2000 ppm per 1,000,000 parts by weight calcium sulfate hemihydrate, more typically from about 500 ppm to about 1500 ppm per 1,000,000 parts by weight calcium sulfate hemihydrate.

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Номер записи: 42
04-03-2021 дата публикации

BUILDING MATERIALS AND COMPONENTS AND METHODS OF MAKING THE SAME

Номер: US20210061714A1
Автор: EISENHAUER Jennifer Tanner, HORNER Richard, JIANG Tengyao, TAN Gang
Принадлежит:

Embodiments of the present disclosure generally relate to methods and materials for fabricating building materials and other components from coal. More specifically, embodiments of the present disclosure relate to materials and other components, such as char clay plaster, char brick, and foam glass fabricated from coal, and to methods of forming such materials. In an embodiment is provided a building material fabrication method. The method includes mixing an organic solvent with coal, under solvent extraction conditions, to form a coal extraction residue, and heating the coal extraction residue under pyrolysis conditions to form a pyrolysis char, the pyrolysis conditions comprising a temperature greater than about 500° C. The method further includes mixing the pyrolysis char with water and with one or more of clay, cement, or sand to create a mixture, and molding and curing the mixture to form a building material. Pyrolysis char-containing materials are also disclosed. 1. A method of forming a building component , comprising:mixing an organic solvent with coal, under solvent extraction conditions, to form a coal extraction residue;heating the coal extraction residue under pyrolysis conditions to form a pyrolysis char, the pyrolysis conditions comprising a temperature greater than about 500° C.;mixing the pyrolysis char with water and with one or more of clay, cement, or sand to create a mixture; andmolding and curing the mixture to form a building component.2. The method of claim 1 , wherein the solvent extraction conditions comprise:a temperature from about 300° C. and 400° C.;a pressure from about 200 psi and about 300 psi;a time period of about 1 hour to about 5 hours; ora combination thereof.3. The method of claim 1 , wherein the solvent extraction conditions further comprise introducing the organic solvent at a flow rate of about 0.05 mL/min to about 0.15 mL/min.4. The method of claim 1 , wherein the pyrolysis conditions comprise:a temperature from about 500° C ...

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Номер записи: 43
02-03-2017 дата публикации

GROUT FLUIDS FOR USE IN A GEOTHERMAL WELL LOOP

Номер: US20170058181A1
Автор: Frantz Eric Benjamin, Henry Rebecca Marie
Принадлежит: Halliburton Energy Services, Inc.

A method comprising (a) first, preparing a grout additive fluid comprising a fresh water base fluid and a grout additive control package comprising a primary additive selected from the group consisting of an inhibitor, a dispersant, a thermally conductive material, and any combination thereof, wherein at least about 90% of the dispersant and the inhibitor are dissolved in the fresh water base fluid; (b) second, introducing an aqueous swellable clay into the grout additive fluid, thereby forming a final grout fluid; and (c) third, introducing the final grout fluid into an annulus in a subterranean formation, the annulus formed between an exterior of a geothermal well loop tubular and the subterranean formation. 1. A method comprising: 'wherein at least about 90% of the dispersant and the inhibitor are dissolved in the fresh water base fluid;', '(a) first, preparing a grout additive fluid comprising a fresh water base fluid and a grout additive control package comprising a primary additive selected from the group consisting of an inhibitor, a dispersant, a thermally conductive material, and any combination thereof,'}(b) second, introducing an aqueous swellable clay into the grout additive fluid, thereby forming a final grout fluid; and(c) third, introducing the final grout fluid into an annulus in a subterranean formation, the annulus formed between an exterior of a geothermal well loop tubular and the subterranean formation.2. The method of claim 1 , wherein the aqueous swellable clay is natural or synthetic claim 1 , and selected from the group consisting of a member of the smectite family claim 1 , a member of the palygorskite-sepiolite phyllosilicate family claim 1 , a member of the kaolinite-serpentine family claim 1 , nontronite claim 1 , bentonite claim 1 , hectorite claim 1 , attapulgite claim 1 , fluoromica claim 1 , montmorillonite claim 1 , beidellite claim 1 , saponite claim 1 , sepiolite claim 1 , kaolinite claim 1 , illite claim 1 , any cation exchanged ...

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Номер записи: 44
20-02-2020 дата публикации

ADDITIVE FOR HYDRAULICALLY SETTING COMPOSITIONS

Номер: US20200055784A1
Автор: Gädt Torben, GRASSL Harald, Nicoleau Luc, SMEETS Alfons
Принадлежит:

The present invention relates to an additive for hydraulically setting compositions comprising a colloidally disperse preparation comprising at least one salt of a polyvalent metal cation with at least one organic phosphonate and/or phosphate compound as anion and at least one polymeric dispersant comprising anionic and/or anionogenic groups and polyether side chains. The additive is especially suitable as slump retainer and for improving early strength. 2. The additive according to claim 1 , wherein the organic phosphonate or organic phosphate compound is capable of forming a sparingly soluble salt with at least one of the polyvalent metal cations.4. The additive according to claim 1 , wherein the salt comprises an anion is selected from an anion of organic phosphonates or organic phosphates having 1 to 3 phosphonic acid and/or 1 to 3 phosphoric acid groups claim 1 , wherein in the phosphonates the organic radical is attached to the phosphorus atom and in the phosphates the organic radical is attached to one or two oxygen atoms of the phosphate group claim 1 , wherein the organic radical is selected from a C-C-alkyl radical which may optionally be substituted and/or may be interrupted by a nitrogen and/or oxygen atom claim 1 , C-C-alkenyl radical or a poly(C-C-alkoxy) radical having 2 to 300 alkoxy units.6. The additive according to claim 5 , wherein the anion is derived from an organic phosphonic acid or organic phosphoric acid of formula I claim 5 , wherein{'sup': 'A', 'sub': 3', '2', '3', '2, 'Ris phenyl, —POHor —OPOH;'}{'sup': 'B', 'sub': 1', '4', 'z', 'z', 'n, 'Ris C-C-alkylene, which is optionally substituted with hydroxy, or —(OCH)—;'}{'sup': 'C', 'sub': 3', '2', '3', '2, 'Ris —POHor —OPOH;'}z is 2 or 3; andn is 1 to 100; andmixtures thereof.8. The additive according to claim 1 , having a pH of 8 to 13.12. The additive according to claim 1 , additionally comprising calcium silicate hydrate.13. The additive according to claim 12 , wherein the calcium silicate ...

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Номер записи: 45
05-03-2015 дата публикации

COPOLYMER FOR DISPERSANT FOR CEMENT, DISPERSANT FOR CEMENT, AND CEMENT COMPOSITION

Номер: US20150065615A1
Автор: HIRATA Tsuyoshi, Lange Alex, Plank Johann
Принадлежит:

An object of the present invention is to provide a novel copolymer capable of exerting excellent dispersibility to various kinds of cement including cement having low fluidity (difficult cement), and a dispersant for cement and cement composition including the copolymer. 3. The copolymer according to claim 1 ,{'sub': '3', 'claim-text': [{'sub': '3', 'a total amount of the component CA and the calcium oxide in the cement is more than 4% by weight, and'}, 'the amount of the calcium oxide in the cement is more than 0.2% by weight., 'wherein the copolymer is to be added to a cement containing component CA and calcium oxide,'}4. A dispersant for cement claim 1 , comprising the copolymer according to .5. A cement composition claim 1 , comprising the copolymer according to claim 1 , a cement claim 1 , and water claim 1 ,{'sub': '3', 'wherein the cement contains component CA and calcium oxide,'}{'sub': '3', 'a total amount of the component CA and calcium oxide in the cement is more than 4% by weight, and'}the amount of the calcium oxide in the cement is more than 0.2% by weight.6. The copolymer according to claim 2 ,{'sub': '3', 'wherein the copolymer is to be added to a cement containing component CA and calcium oxide,'}{'sub': '3', 'a total amount of the component CA and the calcium oxide in the cement is more than 4% by weight, and'}the amount of the calcium oxide in the cement is more than 0.2% by weight.7. A dispersant for cement claim 2 , comprising the copolymer according to .8. A cement composition claim 2 , comprising the copolymer according to claim 2 , a cement claim 2 , and water claim 2 ,{'sub': '3', 'wherein the cement contains component CA and calcium oxide,'}{'sub': '3', 'a total amount of the component CA and calcium oxide in the cement is more than 4% by weight, and'}the amount of the calcium oxide in the cement is more than 0.2% by weight. The present invention relates to a copolymer for a dispersant for cement, a dispersant for cement, and a cement ...

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Номер записи: 46
08-03-2018 дата публикации

CARBON DIOXIDE-RESISTANT PORTLAND BASED CEMENT COMPOSITION

Номер: US20180065891A1
Автор: Kulakofsky David, Santra Ashok K.
Принадлежит:

The invention provides a carbon dioxide-resistant hydraulic cement composition. The inventive composition comprises a Portland cement, Class C fly ash and water. The Class C fly ash is present in the composition in an amount in the range of from about 5% to less than about 30% by weight based on the total weight of the cementitious components in the composition. In another aspect, the invention provides a method of cementing in a carbon dioxide environment. In yet another aspect, the invention provides a method of enhancing the recovery of a hydrocarbon fluid from a subterranean formation. 1. A carbon dioxide-resistant hydraulic cement composition , comprising:a Portland cement;Class C fly ash present in an amount in the range of from about 5% to less than about 30% by weight based on the total weight of the cementitious components in said composition; andwater present in an amount sufficient to form a slurry.2. The carbon dioxide-resistant hydraulic cement composition of claim 1 , wherein said Portland cement is selected from API Class G type Portland cement and API Class H type Portland cement.3. The carbon dioxide-resistant hydraulic cement composition of claim 2 , wherein said Portland cement is API Class H type Portland cement.4. The carbon dioxide-resistant hydraulic cement composition of claim 1 , further comprising a fluid loss additive.5. The carbon dioxide-resistant hydraulic cement composition of claim 1 , further comprising a defoamer.6. The carbon dioxide-resistant hydraulic cement composition of claim 1 , wherein said Class C fly ash is present in said composition in an amount in the range of from about 15% to about 28% by weight based on the total weight of the cementitious components in said composition.7. The carbon dioxide-resistant hydraulic cement composition of claim 6 , wherein said Class C fly ash is present in said composition in an amount of about 25% by weight based on the total weight of the cementitious components in said composition.8. ...

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Номер записи: 47
12-03-2015 дата публикации

Process for the Preparation of Polyoxyalkylene Aminophosphonic Dispersing Agents R1-O-(CH2-CH2-O)n-CH2-CH2-N(R2)-R3-NR4R5 (I)

Номер: US20150073175A1
Автор: Bellotto Maurizio, MARCHESI Marco, Paladini Massimo, Rozzoni Angela
Принадлежит:

Disclosed is a process for the preparation of compounds of formula (I) wherein R1 is C1-C4 alkoxy; R2 is hydrogen or a group of formula —CH—POHor is a group of formula R1-O—(CH—CHO)—CH—CH—; R3 is an alkylene, optionally substituted with one or more —NR2-groups; R4 and R5 are both a group of formula —CH—POHor one of them is a group of formula —CH—POHand the other is a group of formula R1-O—(CH—CH—O)-CH-CH-; n is an integer between 4 and 50; which comprises: a) reacting a compound of formula R1-O—(CH—CH—O)—CH—CH—OH with SOClor a similar reagent to give a compound of formula R1-O—(CH—CH—O)—CH—CH—Cl; b) reacting the compound obtained in a) with an amine of formula NH—R3′-NHwherein R3′ is an alkylene optionally substituted with one or more —NH-groups; c) reacting the compound obtained in b) with formaldehyde and phosphorous acid. 1. A process for the preparation of compounds of formula (I){'br': None, 'sub': 2', '2', 'n', '2', '2, 'R1-O—(CH—CH—O)—CH—CH—N(R2)-R3-NR4R5\u2003\u2003(I)'}wherein R1 is C1-C4 alkoxy;{'sub': 2', '3', '2', '2', '2', 'n', '2', '2, 'R2 is hydrogen or a group of formula —CH—POHor is a group of formula R1-O—(CH—CHO)—CH—CH—;'}R3 is an alkylene optionally substituted with one or more —NR2-groups;{'sub': 2', '3', '2', '2', '3', '2', '2', '2', 'n', '2', '2, 'R4 and R5 are both a group of formula —CH—POHor one is a group of formula —CH-POHand the other is a group of formula R1-O—(CH—CH—O)—CH—CH—;'}n is an integer from 4 to 50;which comprises:{'sub': 2', '2', 'n', '2', '2', '2', '2', '2', 'n', '2', '2, 'a) the reaction of a compound of formula R1-O—(CH—CH—O)—CH—CH—OH with SOClor a similar reagent to give a compound of formula R1-O—(CH—CH—O)—CH—CH—Cl;'}b) the reaction of the compound obtained in a) with an amine of formula NH2-R3′-NH2 wherein R3′ is an alkylene optionally substituted with one or more —NH-groups;c) the reaction of the compound obtained in b) with formaldehyde and phosphorous acid.2. A process according to wherein step a) is run continuously. ...

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Номер записи: 48
16-03-2017 дата публикации

Cement dispersant, method for preparing same, and mortar-concrete admixture using same

Номер: US20170073268A1
Автор: Chanyong YU, Jaeik JEON, Kyeong Hwan Kim, Oil KWEON, Youngju JEON
Принадлежит: San Nopco Korea Ltd

The present invention relates to a polycarbonic acid-based cement dispersant, a method for preparing the same, and a mortar-concrete admixture using the polycarbonic acid-based cement dispersant. The cement dispersant of the present invention and the mortar-concrete admixture using the cement dispersant are applied to a cement composition such as a cement paste, mortar, concrete, etc., enhance a dispersion and retention force between cement molecules, have excellent fluidity due to the suppression of slump loss, and have an effect of improving workability, such as shortening a concrete mixing time by 20% or more. Further, the mortar-concrete admixture using the cement dispersant of the present invention has an effect of providing a very good concrete condition and an appropriate compressive strength over time.

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Номер записи: 49
05-03-2020 дата публикации

PRODUCTION OF DISPERSANTS BY NITROXIDE-MEDIATED SOLUTION POLYMERIZATION

Номер: US20200071444A1
Автор: ULBER Fabia, WEIDMANN Jürg, Zimmermann Jörg
Принадлежит: SIKA TECHNOLOGY AG

The present invention relates to processes for preparing a copolymer, especially a dispersant for solid particles, in particular a dispersant for mineral binder compositions, wherein ionizable monomers m1 and side chain-bearing monomers m2 are polymerized by nitroxide-mediated solution polymerization to give a copolymer, wherein the polymerization is conducted in the presence of an agent comprising a carboxyl group-bearing and phosphated alkoxy amine. 1. A process for preparing a copolymer , comprising polymerizing ionizable monomers m1 and side chain-bearing monomers m2 by nitroxide-mediated solution polymerization to give the copolymer , wherein the polymerization is conducted in the presence of an agent comprising a carboxyl-bearing phosphated alkoxy amine.2. The process as claimed in claim 1 , wherein the solution polymerization is effected in a polar solvent.4. The process as claimed in claim 1 , wherein the agent has exactly 1 carboxyl group and exactly one nitroxide group.5. The process as claimed in claim 1 , wherein the nitroxide-mediated solution polymerization is conducted at a pH in the range of 7.5-13.6. The process as claimed in claim 1 , wherein the nitroxide-mediated solution polymerization is effected in the presence of a base.7. The process as claimed in at claim 1 , wherein the nitroxide-mediated solution polymerization is conducted at a temperature of 40-120° C.8. The process as claimed in claim 1 , wherein the monomers are converted to a copolymer having block structure claim 1 , wherein the side chain-bearing monomers m2 are present essentially in at least one first block A and ionizable monomers m1 are present essentially in at least one second block B.9. The process as claimed in claim 1 , wherein the ionizable monomers m1 and the side chain-bearing monomers m2 are polymerized together to form a section having a concentration gradient and/or a gradient structure.11. The process as claimed in claim 1 , wherein a molar ratio of the ionizable ...

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Номер записи: 50
18-03-2021 дата публикации

Chemical Packer Composition and Methods of Using Same for Isolation of Water/Gas Zones

Номер: US20210079286A1
Автор: Eoff Larry Steven, Escobar Victor Daniel, LAUFER Jacob Wayne
Принадлежит:

A method of treating a subterranean formation penetrated by a wellbore, comprising introducing a chemical packer composition into the wellbore, wherein the chemical packer composition comprises water, a suspending agent, a gelling agent, and a sealant composition and wherein the chemical packer composition has a pH greater than 9, and allowing the chemical packer composition to form a plug, wherein a portion of the wellbore below the plug is isolated from fluid communication with a portion of the wellbore above the plug. 1. A method of treating a subterranean formation penetrated by a wellbore , comprising:introducing a chemical packer composition into the wellbore, wherein the chemical packer composition comprises water, a suspending agent, a gelling agent, and a sealant composition and wherein the chemical packer composition has a pH greater than 9; andallowing the chemical packer composition to form a plug, wherein a portion of the wellbore below the plug is isolated from fluid communication with a portion of the wellbore above the plug.2. The method of wherein the suspending agent comprises diutan.3. The method of wherein the gelling agent comprises hydroxypropyl guar (HPG).4. The method of wherein the sealant composition comprises a water-soluble copolymer and a cross-linker and wherein the water-soluble copolymer comprises acrylamide and an acrylate ester and the cross-linker comprises polyethyleneimine.5. A method of treating a subterranean formation penetrated by a wellbore claim 3 , comprising:introducing a chemical packer composition into the wellbore, wherein the chemical packer composition comprises water, a suspending agent, a gelling agent, and a first sealant composition and wherein the chemical packer composition has a pH greater than 9;allowing the chemical packer composition to form a plug, wherein a first portion of the wellbore below the plug is isolated from fluid communication with a second portion of the wellbore above the plug;penetrating the ...

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Номер записи: 51
22-03-2018 дата публикации

LIGNIN-BASED SURFACTANTS

Номер: US20180078916A1
Автор: GUPTA CHETALI, PERKINS KEDAR, Washburn Newell R.
Принадлежит:

A composition includes a polymer-grafted lignin formed by grafting one or more hydrophilic polyalkylene oxide polymers with lignin, wherein the average grafting density of the polymer-grafted lignin is less than 10 per lignin particle and the weight fraction of the one or more hydrophilic polyalkylene oxide polymers in the polymer grafted lignin is less than 40%. 1. A composition , comprising: a polymer-grafted lignin formed by grafting one or more hydrophilic polyalkylene oxide polymers with lignin , wherein the average grafting density of the polymer-grafted lignin is less than 10 per lignin particle and a weight fraction of the one or more hydrophilic polyalkylene oxide polymers in the polymer grafted lignin is less than 40%.2. The composition of wherein the average grafting density of the polymer-grafted lignin is no more than 6 per lignin particle.3. The composition of wherein the average grafting density of the polymer-grafted lignin is no more than 3 per lignin particle.4. The composition of wherein the one or more hydrophilic polyalkylene oxide polymers are polyethylene glycol polymers.5. The composition of wherein the one or more hydrophilic polyalkylene oxide polymers are polyethylene glycol polymers.6. The composition of wherein the one or more hydrophilic polyalkylene oxide polymers have a degree of polymerization in the range of 5 to 1000.7. The composition of wherein the one or more hydrophilic poyalkylene oxide polymers has a degree of polymerization in the range of 5 to 500.8. The composition of wherein the weight fraction of the one or more hydrophilic polyalkylene oxide polymers in the polymer-grafted lignin is less than 30%.9. The composition of wherein the weight fraction of the one or more hydrophilic polyalkylene oxide polymers in the polymer-grafted lignin is less than 20%.10. The composition of wherein the lignin is selected from the group consisting of a kraft lignin and a lignosulfonate.11. The composition of wherein the lignin is a ...

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Номер записи: 52
14-03-2019 дата публикации

RAPID-HARDENING CEMENT COMPOSITION

Номер: US20190077707A1
Автор: KAMITANI Kiyoshi, SAITOU Keiji, Tawara Hideo, TOKUNAGA Kenji
Принадлежит: MITSUBISHI MATERIALS CORPORATION

This rapid-hardening cement composition includes: a rapid-hardening admixture; and cement in an amount of 100 parts by mass to 2,000 parts by mass with respect to 100 parts by mass of the rapid-hardening admixture, wherein the rapid-hardening admixture is a composition that contains: calcium aluminate; inorganic sulfate in an amount of 50 parts by mass to 200 parts by mass with respect to 100 parts by mass of the calcium aluminate; and a setting modifier in an amount of 0.1 parts by mass to 10 parts by mass with respect to 100 parts by mass of the calcium aluminate, and an average particle diameter of the calcium aluminate is in a range of 8 μm to 100 μm, and an average particle diameter of the setting modifier is in a range of 5 μm or less. 1. A rapid-hardening cement composition , comprising:a rapid-hardening admixture; anda cement in an amount of 100 to 2,000 parts by mass with respect to 100 parts by mass of the rapid-hardening admixture,wherein the rapid-hardening admixture comprises: a calcium aluminate; an inorganic sulfate in an amount of 50 to 200 parts by mass with respect to 100 parts by mass of the calcium aluminate; and a setting modifier in an amount of 0.1 to 10 parts by mass with respect to 100 parts by mass of the calcium aluminate, andwherein an average particle diameter of the calcium aluminate is in a range of 8 to 100 and an average particle diameter of the setting modifier is in a range of 5 μm or less.2. An injection grout comprising the rapid-hardening cement composition according to .3. The rapid-hardening cement composition according to claim 1 ,wherein the setting modifier comprises a compound selected from the group consisting of an inorganic carbonate, an oxycarboxylic acid a sodium aluminate, and a sodium sulfate.4. The rapid-hardening cement composition according to claim 1 ,wherein the setting modifier is further added so that an amount of the setting modifier with respect to an entire amount of the rapid-hardening cement composition ...

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Номер записи: 53
14-03-2019 дата публикации

Apparatus and Method for the Production of Foam

Номер: US20190077719A1
Автор: Hamouda Jaffel, Richard Morlat
Принадлежит: Saint Gobain Placo Sas

An apparatus for preparing foam for incorporation into cementitious slurry comprises a conduit having an inlet for receiving a gas feed and a surfactant feed, and an outlet for allowing the exit of foam. The conduit houses a porous plug that provides a partial barrier to fluid flow along the conduit, the plug comprising a plurality of particles that are packed in a regular array and that define a three-dimensional network of pores extending therebetween. The apparatus comprises a resilient component located between the plug and the conduit.

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Номер записи: 54
23-03-2017 дата публикации

Joint compounds

Номер: US20170081245A1
Автор: Barbara Biasotti, Barbara GATTI, Giampietro Margheritis, Giovanni Floridi, Giuseppe Li Bassi, Roberto Coarezza, Valentina Langella
Принадлежит: LAMBERTI SPA

The present invention relates to ready-to-use drying joint compounds that exhibit improved performance characteristics due to the presence of a hydrophobically modified polygalactomannan.

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Номер записи: 55
23-03-2017 дата публикации

CEMENT OIL-BASED MUD SPACER FORMULATION

Номер: US20170081581A1
Автор: Al-Humaidi Ahmad Saleh, Al-Subhi Mohammad Lafi, Jennings Scott Steven
Принадлежит: Saudi Arabian Oil Company

A spacer fluid made of a viscosity thinner, a weighting agent, an antifoaming agent, and a non-ionic surfactant in a base aqueous fluid is disclosed. In some instances, the viscosity thinner is a sulfomethylated tannin, the weighting agent is barium sulfate, the antifoaming agent is a silicone, and the non-ionic surfactant is an ethoxylated alcohol. A method of treating a well bore annulus in preparation of introducing water-based cement slurry into a well bore using the spacer fluid is disclosed. A method of using the spacer fluid to position a first fluid into a well bore annulus of a well bore containing a second fluid is disclosed. A method for fluidly isolating at least a portion of a well bore annulus in a well bore containing an oil-based drilling fluid using water-based cement slurry and the spacer fluid is disclosed. 1. A spacer fluid composition for use between a first fluid and a second fluid , the spacer fluid composition comprising:a base aqueous fluid comprising fresh water,a viscosifier comprising a chemically modified tannin,a weighting agent comprising barite,an antifoaming agent comprising a silicone-based liquid, anda non-ionic surfactant comprising an alkoxylated alcohol,where a measured viscosity of a mixture of the first fluid and the spacer fluid composition at a first ratio of the first fluid to the spacer fluid composition is less than a measured viscosity of a mixture of the second fluid and the first fluid at a second ratio of the second fluid to the first fluid, where the first ratio and second ratio are substantially the same, and where the second fluid comprises an oil-based fluid and the first fluid comprises a water-based cement slurry,where a measured viscosity of a mixture of the second fluid and the spacer fluid composition at a third ratio of the second fluid to the spacer fluid composition is less than a measured viscosity of a mixture of the second fluid and the first fluid at the second ratio of the second fluid to the first ...

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Номер записи: 56
31-03-2022 дата публикации

Method of stabilizing an admixture component, a stabilized admixture for cementitious compositions, cementitious composition, cementitious structures and methods of making the same

Номер: US20220098120A1
Автор: Jacki J. ATIENZA, Michael Myers, Paul Seiler, Sandra SPROUTS, Shaode Ong, Suz-Chung Ko, Thomas Vickers
Принадлежит: CONSTRUCTION RESEARCH AND TECHNOLOGY GmbH

Additives for cementitious compositions are stabilized against particle agglomeration. The additive may be provided in an aqueous liquid admixture composition for cementitious compositions that includes the additive, a polymer thickener, and water, where the particles are stabilized against agglomeration and the admixture is stabilized against physical separation. The method for stabilizing the additive against particle agglomeration utilizes a pH sensitive thickener that may be activated through neutralization of acid groups on the polymer thickener. Methods of making cementitious compositions and hardened cementitious structures using the stabilized additive and admixture are also disclosed.

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Номер записи: 57
31-03-2022 дата публикации

Combination of Fluid Loss Control Additive and Lost Circulation Materials to Control Losses in Formation

Номер: US20220098467A1
Автор: Ganesh Shriniwas PANGU, Kyriacos Agapiou, Samuel Jason LEWIS, Sandip Prabhakar Patil
Принадлежит: Halliburton Energy Services Inc

The present disclosure provides methods, compositions, and systems embodying cement compositions and the synergistic effect of lost circulation materials (LCMs) and fluid loss control additives (FLCAs) thereupon for cementing subterranean zones. A method of subterranean well cementing, comprising providing a cement composition comprising a hydraulic cement, a first FLCA, an LCM, and water, wherein the first FLCA comprises a water-soluble polymer with repeating units comprising a 5- to 6-membered cyclic amide; introducing the cement composition into a wellbore penetrating a subterranean formation, wherein inclusion of the first FLCA and the LCM in the cement composition fluid reduces fluid loss into the subterranean formation, wherein the subterranean formation has fractures with a width of from about 1 micron to about 800 microns, and wherein the subterranean formation has a permeability of about 1 milliDarcy to about 300 Darcy; and allowing the cement composition to set in the subterranean formation.

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Номер записи: 58
29-03-2018 дата публикации

DISPERSANT COMPOSITION FOR HYDRAULIC COMPOSITION

Номер: US20180086669A1
Автор: SAIDA Kazuya, SHIMODA Masaaki, TANAKA Shunya
Принадлежит: KAO CORPORATION

The present invention is a dispersant composition for a hydraulic composition, which includes (A) a high-molecular compound having a naphthalene ring-containing monomer unit, (B) a polymer having a weight average molecular weight of 1,000 or more and 1,000,000 or less, and having: a monomer unit having a group selected from a carboxylic acid group, a phosphate group, a group that changes to a carboxylic acid group by hydrolysis, and a group that changes to a phosphate group by hydrolysis; and a monomer unit having an alkyleneoxy group, and (C) a specific compound represented by the general formulas (C1) to (C4). 2. The dispersant composition for a hydraulic composition according to claim 1 , further comprising (D) an antifoaming agent.3. The dispersant composition for a hydraulic composition according to claim 2 , which contains claim 2 , in the solid content thereof claim 2 , (D) in an amount of 0.001 mass % or more and 10 mass % or less.4. The dispersant composition for a hydraulic composition according to claim 1 , wherein (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof.6. The hydraulic composition according to claim 5 , further comprising (D) an antifoaming agent.7. The hydraulic composition according to claim 6 , which contains (D) in an amount of 0.0005 parts by mass or more and 0.1 parts by mass or less relative to 100 parts by mass of the hydraulic powder.8. The hydraulic composition according to claim 5 , wherein (A) is a formaldehyde naphthalenesulfonate condensate or a salt thereof.10. The method for manufacturing a hydraulic composition according to claim 9 , further comprising mixing (D) an antifoaming agent.11. The method for manufacturing a hydraulic composition according to claim 10 , which includes mixing (D) in an amount of 0.0005 parts by mass or more and 0.1 parts by mass or less relative to 100 parts by mass of the hydraulic powder.12. The method for manufacturing a hydraulic composition according to claim 9 , wherein (A) ...

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Номер записи: 59
21-03-2019 дата публикации

FOAMING AGENT AND DISPERSANT COMBINATIONS FOR GYPSUM COMPOSITIONS

Номер: US20190084885A1
Автор: CHAO Yen-Yau
Принадлежит:

A lightweight gypsum compositions gypsum composition with good water resistance having a low water-to-stucco ratio, high flowability, and mechanical strength. The gypsum composition includes a cationic agent, an anionic agent, an aqueous stucco slurry containing a stucco, a water reducing dispersant, and water. The cationic agent may operate as a foaming agent, and the anionic agent may operate as a foam stabilizer. 1. A gypsum composition comprising:a cationic agent;an anionic agent; andan aqueous stucco slurry containing a stucco, a water reducing dispersant, and water, wherein the water-to-stucco ratio (WSR) of the aqueous slurry is less than 0.85.2. The gypsum composition of claim 1 , wherein the cationic agent is a quaternary antifungal foam agent claim 1 , the anionic agent is a foam stabilizer claim 1 , and the water reducing dispersant is a polysulfonate-containing dispersant claim 1 , superplasticizers or plasticizers.3. The gypsum composition of claim 2 , wherein the WSR is between 0.35 and 0.80.4. The gypsum composition of claim 2 , wherein the cationic agent is a quaternary salt selected from the group consisting of dodecyltrimethylammonium bromide claim 2 , dodecyltrimethylammonium chloride claim 2 , tetradecyltrimethylammonium bromide claim 2 , tetradecyltrimethylammonium chloride claim 2 , hexadecyltrimethylammonium bromide claim 2 , hexadecyltrimethylammonium chloride claim 2 , octadecyltrimethylammonium bromide claim 2 , octadecyltrimethylammonium chloride claim 2 , cetyltrimethylammonium bromide claim 2 , cetyltrimethylammonium chloride claim 2 , cetylbenzyldimethylammonium chloride claim 2 , cetyltriethylammonium bromide claim 2 , (tallow)trimethylammonium chloride claim 2 , and a mixture thereof.5. The gypsum composition of claim 2 , wherein the anionic agent is a long-chain organic compound having Formula (II):{'br': None, 'sub': '2', 'sup': −', '+, 'R′—XY\u2003\u2003(II)'}{'sub': '2', 'sup': −', '+, 'where R′ is an aliphatic hydrocarbon radical ...

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Номер записи: 60
19-03-2020 дата публикации

LIGHTER WEIGHT COMPOSITION MATERIAL WITH LOW THERMAL CONDUCTIVITY

Номер: US20200087215A1
Автор: Miles Steven Patrick
Принадлежит:

A method of making a composition material comparable to strength with regular concrete but with a lower weight and thermal conductivity is provided. The process includes forming a first composition from a foam admixture of a first cementitious slurry and foam. This first composition is set and then pulverized to a fine dust. The fine dust is then added to a second cementitious slurry, producing a lightweight and insulative composition material for construction applications. 1. A method of making a composition material , comprising the steps of:providing a first cementitious slurry;adding a foam to the first cementitious slurry, forming a foam admixture;setting the foam admixture, producing a first composition;pulverizing the first composition; andadding the pulverized first composition to a second cementitious slurry.2. The method of claim 1 , wherein the foam comprising water and dishwashing detergent.3. The method of claim 2 , wherein a ratio of water to dishwashing soap ranges between 85 gallons water to one-quart dishwashing detergent and 40 gallons water to one-quart dishwashing detergent.4. The method of claim 1 , wherein the first composition is first pulverized to a gravel-sized particulate and then further comprising the step of blending the gravel-sized particulate to a dust claim 1 ,whereby the dust is used in lieu of sand in a standard concrete aggregate mix.5. The method of claim 1 , wherein the pulverized first composition and the second cementitious slurry forms a composition material slurry.6. The method of claim 5 , wherein the first composition is set in a preselected form; and further comprising the step of pouring the composition material slurry in said preselected form claim 5 ,whereby a predetermined amount of pulverized first composition is added to the second cementitious slurry.7. The method of claim 1 , wherein no aggregates other than Portland cement or the dust is added to the first and second cementitious slurries.8. A method of making a ...

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Номер записи: 61
28-03-2019 дата публикации

DISPERSANT IN CEMENT FORMULATIONS FOR OIL AND GAS WELLS

Номер: US20190092996A1
Автор: Al-Yami Abdullah, AlBahrani Hussain, Safran Ali, Wagle Vikrant
Принадлежит: Saudi Arabian Oil Company

Cement slurries, cured cements, and methods of making cured cement and methods of using cement slurries are provided. The cement slurries have, among other attributes, improved rheology, such as improved flowability and pumpability and may be used, for instance, in the oil and gas drilling industry. The cement slurry contains water, a cement precursor material and a surfactant having the formula R—(OCH)—OH where R is a hydrocarbyl group comprising from 10 to 20 carbon atoms and x is an integer from 1 and 10. The cured cement have improved strength and density properties due to reduced fluid loss and even placement during curing. The cured cement contains a surfactant having the formula R—(OCH)—OH where R is a hydrocarbyl group comprising from 10 to 20 carbon atoms and x is an integer from 1 and 10. 1. A cement slurry comprising:water;a cement precursor material; anda surfactant having a HLB of from 12 to 13.5.2. The cement slurry of claim 1 , where the cement slurry contains from 10 to 70 wt % BWOC (By Weight Of Cement Precursor) water.3. The cement slurry of claim 1 , where the cement slurry contains from 10 to 90 wt % BWOC of the cement precursor material.4. The cement slurry of claim 1 , where the cement slurry contains from 0.1 to 10 wt % BWOC of the surfactant.5. The cement slurry of claim 1 , where the cement slurry contains from 0.1 to 10 wt % BWOC of one or more additives selected from the group consisting of accelerators claim 1 , retarders claim 1 , extenders claim 1 , weighting agents claim 1 , fluid loss control agents claim 1 , lost circulation control agents claim 1 , antifoaming agents claim 1 , and combinations of these.6. The cement slurry of claim 1 , where the cement precursor material is a hydraulic or a non-hydraulic cement precursor.7. The cement slurry of claim 1 , where the cement precursor material is a hydraulic cement precursor.8. The cement slurry of claim 1 , where the cement precursor material comprises one or more components selected ...

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Номер записи: 62
16-04-2015 дата публикации

CROSSLINKED STARCHES FOR PORE FORMING IN CERAMICS

Номер: US20150102516A1
Автор: Lewis Mark Alan, Oram Pascale, Tanner Cameron Wayne, Vileno Elizabeth Marie
Принадлежит:

Disclosed herein are green bodies comprising at least one ceramic-forming powder; at least one binder; and at least one cross-linked starch present in an amount of at least about 20% by weight as a super addition. Further disclosed herein is a method of making a porous ceramic body comprising mixing at least one ceramic-forming powder, at least one solvent such as water, at least one binder, and at least one cross-linked starch present in an amount of about 20% by weight as a super addition to form a batch composition; extruding the batch composition to form a green body; drying the green body; and firing the green body to form a porous ceramic body. Also disclosed herein are methods of screening a green body for making a porous ceramic body. 1. A method of making a porous ceramic body comprising:mixing at least one ceramic-forming powder, at least one solvent, at least one binder, and at least one cross-linked starch present in an amount of at least about 20% by weight as a super addition to form a batch composition;extruding the batch composition to form a green body;drying the green body; andfiring the green body to form a porous ceramic body,wherein the growth of the green body at about 35° C. and about 85% humidity is less than about 0.8% at least about 24 hours after drying and before the firing of the green body.2. The method of making a porous ceramic body according to claim 1 , wherein the porosity of the porous ceramic body is greater than about 50%.3. The method of making a porous ceramic body according to claim 1 , wherein the porosity of the porous ceramic body ranges from about 50% to about 65%.4. The method of making a porous ceramic body according to claim 1 , wherein the growth of the green body at about 35° C. in about 85% humidity at least 24 hours after drying is less than about 0.5%.5. The method of making a porous ceramic body according to claim 1 , wherein the shrinkage upon drying of the green body is less than about 5%.6. The method of ...

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Номер записи: 63
06-04-2017 дата публикации

Foam modifiers for gypsum slurries, methods, and products

Номер: US20170096366A1
Автор: Alfred C. Li, Annamaria Vilinska, Weixin D. Song
Принадлежит: United States Gypsum Co

Disclosed is a foam modifier, e.g., useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C 6 -C 16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process.

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Номер записи: 64
26-03-2020 дата публикации

Vegetable Oil-Based Alkoxylates and Methods of Making Such

Номер: US20200094207A1
Автор: George A. Smith, Heather Byrne, Hungchang Calvin Chiu, Jeffrey CELLURA, Xiaohua Fang
Принадлежит: Indorama Ventures Oxide and Glycols LLC

A vegetable oil-based alkoxylate composition comprising a mixture of mono-, di-, and/or triacyl alkoxylated glycerides and alkoxylated glycerin. A method of reacting a vegetable oil and an alkoxylated glycerin via a transesterification reaction to produce a vegetable oil-based alkoxylate composition.

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Номер записи: 65
08-04-2021 дата публикации

METHOD OF APPLICATION OF SLIDING-RING POLYMERS TO ENHANCE ELASTIC PROPERTIES IN OIL-WELL CEMENT

Номер: US20210102112A1
Автор: Boul Peter, PATEL Hasmukh A., Thaemlitz Carl
Принадлежит:

This document relates to methods for improving the tensile and elastic properties of cement of an oil well using cement compositions that contain sliding-ring polymer additives. The cement compositions containing the sliding-ring polymer additives exhibit increased stiffness while having a minimum impact on compressive strength, as compared to the same cement without the sliding-ring polymer additive. 1. A cement composition comprising:cement; and a linear polymer;', 'at least one ring compound, wherein the linear polymer is threaded through the opening of the ring compound; and', 'stopper groups disposed at both end terminals of the linear polymer;', 'wherein at least one of the linear polymer and the ring compound is substituted with a hydrophobic group or a non-ionic group or combination thereof; and', 'the at least two molecules of polyrotaxane are cross-linked to each other through a chemical bond., 'a sliding-ring polymer additive comprising at least two molecules of a polyrotaxane, wherein the polyrotaxane comprises2. The composition of claim 1 , wherein the linear polymer is selected from the group consisting of polyvinyl alcohol claim 1 , polyvinylpyrrolidone claim 1 , poly(meth)acrylic acid claim 1 , a cellulose-based resin claim 1 , polyacrylamide claim 1 , polyethylene oxide claim 1 , polyethylene glycol claim 1 , polypropylene glycol claim 1 , a polyvinyl acetal-based resin claim 1 , polyvinyl methyl ether claim 1 , polyamine claim 1 , polyethyleneimine claim 1 , casein claim 1 , gelatin claim 1 , starch claim 1 , a polyolefin-based resin claim 1 , a polyester resin claim 1 , a polyvinyl chloride resin claim 1 , a polystyrene-based resin claim 1 , an acrylic resin claim 1 , a polycarbonate resin claim 1 , a polyurethane resin claim 1 , a vinyl chloride-vinyl acetate copolymer resin claim 1 , a polyvinylbutyral resin claim 1 , polyisobutylene claim 1 , polytetrahydrofuran claim 1 , polyaniline claim 1 , acrylonitrile-butadiene-styrene copolymer (ABS ...

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Номер записи: 66
02-06-2022 дата публикации

WALL COMPOUNDS AND METHODS OF USE

Номер: US20220169568A1
Автор: Wang DanLi
Принадлежит:

A wall compound for use in all applications and particularly well-suited for joining adjacent wallboards. The compound includes a latex resin, a thickener, fibers, and a filler material. In some embodiments, the repair compound is configured to exhibit at least one of yield stress and pseudoplastic-type behavior. In some embodiments, the compound includes hydrophobic and hydrophilic fibers of different morphologies. In some embodiments, the wall compound includes one or more associative thickeners. 1. A wall compound comprising:a latex resin or resin binder present in an amount of about 50% by weight or less, based on the total weight of the compound;a thickener package including an alkali swellable emulsion, wherein the thickener package is present in amount of 1% by weight or less, based on the total weight of the compound;hydrophobic dry fibrillated fibers and hydrophilic fibers; anda filler material consisting of substantially spherical synthetic inorganic filler, wherein the wall compound exhibits yield stress behavior, having a yield stress value of at least 200 and no greater than 1000 Pa, and wherein the compound exhibits a Viscosity at 1500 Pa of stress of no greater than 10 Pa·s, each as measured according to the description.2. The wall compound of claim 1 , wherein the latex resin or resin binder is at least one of a vinyl acrylic polymer or copolymer claim 1 , an acrylic polymer or copolymer claim 1 , an acrylate polymer or copolymer claim 1 , a polyvinyl acetate polymer or copolymer claim 1 , an ethylene vinyl acetate polymer or copolymer claim 1 , a styrene-butadiene polymer or copolymer claim 1 , a polyacrylamide polymer or copolymer claim 1 , a natural rubber latex claim 1 , a natural starch claim 1 , a synthetic starch claim 1 , and casein.3. The wall compound of claim 1 , wherein the latex resin or resin binder is 100% acrylate.4. The wall compound of claim 1 , wherein the compound exhibits a Viscosity at 1500 Pa of stress of no greater than 9 Pa·s ...

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Номер записи: 67
20-04-2017 дата публикации

Hardening accelerator composition containing dispersants

Номер: US20170107148A1
Автор: Gerhard Albrecht, Luc Nicoleau
Принадлежит: CONSTRUCTION RESEARCH AND TECHNOLOGY GmbH

A process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound, said reaction being effected in the present of a water-soluble dispersant having at least one polyalkyleneglycol structural unit with a functional group at one end of the polyalkyleneglycol, being able to interact as an anchor group with the surface of cement particles, the hardening accelerator composition and its use.

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Номер записи: 68
20-04-2017 дата публикации

STABLE PCE AND POLYSACCHARIDE VMA COMPOSITIONS FOR CONCRETE ADMIXTURES AND THEIR USES

Номер: US20170107149A1
Автор: Baumann Robert, Schmitz Marc, Wagner Anette
Принадлежит:

The present invention provides aqueous compositions that are stable after at least a 24 hour period comprising a polysaccharide viscosity modifying additive and more than 60 wt. %, based on the weight of total solids in the compositions of one or more polycarboxylate ether, the compositions comprising an acid chosen from an organic acid having 1 hydroxy group or less, a strong acid containing a single hydrogen, an ascorbic acid, and mixtures thereof, the compositions having a pH of less than the pH of the polycarboxylate ether itself, or from 1.0 to 6.0. The present invention enables stable concentrates of aqueous polycarboxylate ethers and polysaccharide viscosity modifying agents for use in hydraulic binder applications, the compositions having a total solids content of 10 wt. % to as high as 65 wt. %. 1. An shelf stable aqueous compositions comprising one or more polysaccharide viscosity modifying additive , one or more polycarboxylate ether (PCE) , and an acid chosen from organic acids having 1 hydroxy group or less , strong acids containing a single hydrogen , and ascorbic acids , wherein the pH value of the aqueous compositions is less than the pH of the PCE itself , and , further wherein , the aqueous compositions comprise more than 60 wt. % , based on the total solids in the composition , of the one or more polycarboxylate ether.2. The aqueous composition as claimed in comprising the polysaccharide viscosity modifying additive in an amount of from 1 to 40.1 wt. % claim 1 , based on the total solids in the composition.3. The aqueous composition as claimed in claim 1 , wherein the polysaccharide viscosity modifying additive and the polycarboxylate ether solids of the composition may comprise more than 70 wt. % of the total solids of the composition.4. The aqueous composition as claimed in claim 1 , wherein the total solids in the aqueous composition ranges from 10 to 65 wt. %.5. The aqueous composition as claimed in claim 1 , wherein the polysaccharide ...

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Номер записи: 69
20-04-2017 дата публикации

COMPOSITIONS AND METHODS FOR COMPLETING SUBTERRANEAN WELLS

Номер: US20170107420A1
Автор: Achtal Hafida, Couillet Isabelle, Terrier Cyril
Принадлежит:

Hydroxyethylcellulose (HEG) may be used to provide fluid-loss control in well-cement slurries HECs that have a molecular weight above 600,000, a degree of substitution higher than 1.9 and a molar substitution above 2.0 are particularly useful in that they not only provide fluid-loss control, but also may be used as a cement extender. Furthermore, the retardation effect may be reduced. 1. A well cementing composition , comprising:(i) water;(ii) a hydraulic cement;(iii) a cement dispersant; and{'sup': '−1', '(iv) hydroxyethylcellulose, wherein the hydroxyethylcellulose has a molecular weight between 600,000 g/mol and 1,500,000 g/mol and a molar substitution between 2.0 and 3.5 wherein the composition has a viscosity lower than 1000 cP at a shear rate of 100 s.'}2. The composition of claim 1 , wherein the hydroxyethylcellulose has a degree of substitution between 1.9 and 2.5.3. The composition of claim 1 , wherein the cement dispersant is polynaphthalene sulfonate claim 1 , present at a concentration between 0.3% and 1.5% by weight of cement.4. The composition of claim 1 , wherein the cement dispersant is a polycarboxylate claim 1 , present at a concentration between 0.3% and 1.5% by weight of cement.5. The composition of claim 1 , wherein the hydroxyethylcellulose is present at a concentration between 0.4% and 1.5% by weight of cement.6. The composition of claim 1 , wherein the hydraulic cement is portland cement.7. The composition of claim 1 , wherein the composition further comprises an accelerator claim 1 , a retarder claim 1 , an extender claim 1 , a weighting agent claim 1 , an antifoam agent claim 1 , nitrogen claim 1 , a fluid-loss control agent or a gas generating agent claim 1 , or a combination thereof.8. A method for cementing a subterranean well claim 1 , comprising:(i) preparing a cement slurry comprising water, a hydraulic cement, a cement dispersant and hydroxyethylcellulose, wherein the hydroxyethylcellulose has a molecular weight between 600,000 g/mol ...

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Номер записи: 70
11-04-2019 дата публикации

Polymeric Bone Foam Composition And Method

Номер: US20190105238A1
Автор: Kuhli Maren, Reimers Nils, Sörensen Torben Christian, STECKEL Hartwig
Принадлежит:

Biomaterials, in particular bone foams, a process for preparing such materials as well as an applicator for applying the biomaterials directly to the patient's application site, and the use of a composition comprising water, a surfactant and a propellant in the preparation of a bone foam for the preparation of a calcium phosphate foam wherein the foam is obtainable by the mixture of at least two phases, a first phase comprising water and optionally a propellant, a second phase comprising one or more sources for calcium and/or phosphate, and wherein the foaming is performed during the mixture of the at least two phases to provide an improved calcium phosphate foam, process for the preparation of a calcium phosphate foam, use of a composition, solid state structure, calcium phosphate cement foam and bone foam applicator. 1. A calcium phosphate foam comprising:a calcium phosphate cement and at least one stabilizing agent, wherein the stabilizing agent is selected from the group consisting of surfactants, gelling agents, soluble phosphate salts, organic acids, and any mixtures of the foregoing,wherein the foam has a macroporosity in the range of 5 to 90 vol %, and exhibits a setting time measured by the Gillmore needles method or measured by a Zwick Materialtester below 45 min, wherein the foam is stable for at least 15 min.2. The calcium phosphate foam according to claim 1 , further comprising a crosslinking agent.3. A solid state structure for use in bone regeneration claim 1 , tissue engineering or as a bone substitute prepared by setting or crosslinking of the foam obtained by the process comprising:mixing a) a first phase comprising water, a propellant, and a stabilizing agent, andb) a second phase comprising one or more sources for calcium and/or phosphate, and initiating foamingduring the mixing of the first and second phases.4. A calcium phosphate cement foam for use in bone regeneration claim 1 , tissue engineering claim 1 , or as a bone substitute. prepared by ...

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Номер записи: 71
02-04-2020 дата публикации

CELLULOSIC PULP INTERNAL CURING AGENT FOR A HYDRAULIC CEMENT-BASED COMPOSITE MATERIAL

Номер: US20200102246A1
Автор: BANTHIA Nemkumar, Bicho Paul Alexandre, Onuaguluchi Obinna, Watson Paul Andrew
Принадлежит:

A process for preparing a cellulosic pulp for use as an internal curing agent for a hydraulic cement-based composite material is disclosed. The process involves selecting a degree of refining of the cellulosic pulp to cause sufficient fibrillation to provide a change in water retention capacity for the cellulosic pulp while simultaneously limiting a decrease in dispersability within a mixture for forming the composite material due to excess fibrillation. The process also involves controlling refining of the cellulosic pulp using the selected degree of refinement to produce the cellulosic pulp internal curing agent. 1. A process for preparing a cellulosic pulp for use as an internal curing agent for a hydraulic cement-based composite material , the process comprising:selecting a degree of refining of the cellulosic pulp to cause sufficient fibrillation to provide a change in water retention capacity for the cellulosic pulp while simultaneously limiting a decrease in dispersability within a mixture for forming the composite material due to excess fibrillation; andcontrolling refining of the cellulosic pulp using the selected degree of refinement to produce the cellulosic pulp internal curing agent.2. The process of wherein controlling refining the cellulosic pulp comprises subjecting the cellulosic pulp to a controlled mechanical refining process.3. The process of wherein subjecting the cellulosic pulp to a mechanical refining process comprises processing the cellulosic pulp using one of:a disk refiner;a conical refiner;a Hollander beater;a homogenizer; anda Valley beater.4. The process of wherein selecting the degree of refining comprises establishing a degree of refining above which increased refining provides no substantive improvement in assessed characteristics of at least one of the mixture and the resulting composite material.5. The process of wherein the degree of refining is characterized in terms of an energy delivered during refining of the cellulosic pulp. ...

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Номер записи: 72
27-04-2017 дата публикации

Freeze-thaw durable geopolymer compositions and methods for making same

Номер: US20170113969A1
Автор: Ashish Dubey, Sundararaman CHITHIRAPUTHIRAN
Принадлежит: United States Gypsum Co

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 selected from at least one of air-entraining agent, defoaming agent, and surface active organic polymer; wherein the composition has an air content of about 4% to 20% by volume, more preferably about 4% to 12% by volume, and most preferably about 4% to 8% by volume. The compositions are made from a slurry wherein the water/cementitious reactive powder weight ratio is 0.14 to 0.45:1, preferably 0.16 to 0.35:1, and more preferably 0.18 to 0.25:1. Methods for making the compositions are also disclosed.

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Номер записи: 73
09-04-2020 дата публикации

Cement with resilient latex polymer

Номер: US20200109327A1
Автор: Abhimanyu Pramod DESHPANDE, Rahul Chandrakant Patil, Ramesh Muthusamy, Remitha Anandoth KOYITTI, Sohini BOSE
Принадлежит: Halliburton Energy Services Inc

Compositions comprising: (i) a hydraulic cement; and (ii) a polymer comprising at least one monomer having an oxazoline group. Methods of cementing in a well comprising: (A) forming a hydraulic cement composition comprising: (i) a hydraulic cement; (ii) a polymer comprising at least one monomer having an oxazoline group; and (iii) water; (B) introducing the hydraulic cement composition into the well.

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Номер записи: 74
07-05-2015 дата публикации

Water Repellent Organosilicon Materials

Номер: US20150125612A1
Автор: Brett Zimmerman, Fabrizio Galeone, Frederick Campeol, Jean-Paul Lecomte, Leon Marteaux, Marie-Jose Sarrazin
Принадлежит: Dow Corning Corp

A process for increasing the hydrophobicity of a porous product by treating the product, or a composition providing for the product, with a water repellent material, characterised in that the porous product or a composition providing the product, is treated with an aqueous suspension of microcapsules where the microcapsules comprise a water repellent organosilicon core material selected from an organosilane, a partially condensed organosilane and a branched siloxane resin, and a shell of a silicon-based network polymer comprising silica units.

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Номер записи: 75
27-05-2021 дата публикации

High Strength High Temperature Float Equipment

Номер: US20210156224A1
Автор: Jones Paul Joseph, Santoso Handoko Tirto, TURTON Simon
Принадлежит:

A downhole tool comprising a cylindrical housing, a sleeve disposed in the cylindrical housing, forming an annular space between the sleeve and the cylindrical housing, and a tool cement composition disposed in the annular space, wherein prior to setting the tool cement composition comprises a cement, sand, a silicon-containing material, a dispersant, and water, and wherein upon setting the tool cement composition provides an annular seal having a fluid leakage of less than 750 ml over 15 minutes at a pressure of 7500 psi and a temperature of 400° F. 1. A downhole tool comprising:a cylindrical housing;a sleeve disposed in the cylindrical housing, forming an annular space between the sleeve and the cylindrical housing; anda tool cement composition disposed in the annular space, wherein prior to setting the tool cement composition comprises a cement, sand, a silicon-containing material, a dispersant, and water, andwherein upon setting the tool cement composition provides an annular seal having a fluid leakage of less than 750 ml over 15 minutes at a pressure of 7500 psi and a temperature of 400° F.2. The tool of claim 1 , wherein the inner surface of the cylindrical housing comprises one or more ribs claim 1 , wedges claim 1 , indentations claim 1 , or combinations thereof that aid resistance to axial movement of the annular seal.3. The tool of claim 1 , wherein the sleeve comprises a valve.4. The tool of claim 3 , wherein the valve is a one-way valve which permits flow in a single direction.5. The tool of claim 1 , wherein the cement comprises Portland cement claim 1 , pozzolana cement claim 1 , gypsum cement claim 1 , shale cement claim 1 , acid/base cement claim 1 , phosphate cement claim 1 , high alumina content cement claim 1 , slag cement claim 1 , silica cement claim 1 , high alkalinity cement claim 1 , magnesia cement claim 1 , or combinations thereof.6. The tool of claim 1 , wherein the sand has a particle size of equal to or greater than about 0.0070 inches ...

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Номер записи: 76
11-05-2017 дата публикации

Low weight and density fire-resistant gypsum panel

Номер: US20170129813A1
Автор: Qiang Yu, Srinivas Veeramasuneni, Weixin D. Song
Принадлежит: United States Gypsum Co

An about ⅝ inch to ¾ inch thick low weight, low density gypsum panel with fire resistance capabilities sufficient to provide a Thermal Insulation Index of at least 17.0 minutes which when subjected to U419 test procedures will not fail for at least 30 minutes and, in selected embodiments, also has outstanding water resistance properties.

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Номер записи: 77
11-05-2017 дата публикации

SET ON DEMAND COMPOSITIONS

Номер: US20170130115A1
Автор: Ballard David Anthony
Принадлежит: M-I DRILLING FLUIDS U.K. LIMITED

Cement compositions may contain a cement component and an oil-immiscible solvent and used in a number of cementing applications. In another aspect, methods for sealing subterranean zones may include emplacing a cement composition into a wellbore containing a cement component and an oil-immiscible solvent, contacting the cement composition with a water source, and reacting the cement composition with the water source to form a hardened cement. 1. A cement composition comprising:a cement component;an oil-immiscible solvent;a surfactant; andone or more hydration retarders selected from a group consisting of polycarboxylate polymers, polycarboxylic acids, lignosulfonates, sulfonated tannins, and chelators.2. The cement composition of claim 1 , wherein the cement component comprises a magnesium-based cement.3. The cement composition of claim 1 , wherein the oil-immiscible solvent is one or more selected from a group consisting of ethylene glycol claim 1 , propylene glycol claim 1 , glycerol claim 1 , diethylene glycol claim 1 , triethylene glycol claim 1 , 1 claim 1 ,3-butanediol claim 1 , and hexylene glycol.4. The cement composition of claim 1 , wherein the cement composition further comprises a particulate silica.5. The cement composition of claim 1 , wherein the surfactant is an anionic surfactant.6. The cement composition of claim 1 , further comprising an anionic surfactant that is one or more selected from a group consisting of alpha olefin sulfonates claim 1 , fatty acid derivatives claim 1 , phosphate esters claim 1 , acetylene dials claim 1 , and lecithins.7. The cement composition of claim 1 , further comprising one or more ionic polymers.8. The cement composition of claim 7 , wherein the one or more ionic polymer additive is a copolymer or terpolymer comprising at least one of acrylic acid claim 7 , itaconic acid claim 7 , maleic acid claim 7 , acrylamido-2-methyl-propane sulfonic acid claim 7 , styrene sulfonic acid claim 7 , and vinyl phosphonic acid.9. The ...

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Номер записи: 78
11-05-2017 дата публикации

Self-Pressurizing Soluble Alkali Silicate for use in Sealing Subterranean Spaces

Номер: US20170130116A1
Автор: Brett Howard Cramer, Kelly Paul Short, Jr., Michael James MCDONALD, Xianglian LI
Принадлежит: BYK USA Inc, PQ Corp

The invention provides compositions and methods for sealing subterranean spaces such as natural or induced fractures, vugs or annular spaces. The composition is composed of a base fluid consisting of a soluble alkali silicate, a gas generating additive, solids and a setting agent. The gas generating additive may be coated or uncoated. The gas generating additive may also be in the form of a slurry. In the case of coated additives, the coating may act as a retarder or an accelerator to the expansion and setting agent of the soluble alkali silica. Similarly, the choice of carrier fluid in a slurry may retard or accelerate the expansion and setting of the alkali silicate-based plug.

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Номер записи: 79
11-05-2017 дата публикации

Use of Synthetic Smectite in Set-Delayed Cement Compositions Comprising Pumice

Номер: US20170130119A1
Автор: Agapiou Kyriacos, Boul Peter James, Brothers Lance Everett, MORGAN Ronnie Glen, Otieno Pauline Akinyi, Pisklak Thomas Jason
Принадлежит: Halliburton Energy Services, Inc.

Disclosed herein are cement compositions using set-delayed cement compositions in subterranean formations. The composition may comprise a set-delayed cement composition comprising pumice, hydrated lime, a cement set retarder, a synthetic smectite, and water. 1. A set-delayed cement composition for cementing in a subterranean formation comprising:pumice,hydrated lime,a cement set retarder,a synthetic smectite, andwater.2. The composition of wherein the pumice has a mean particle size in a range of about 10 micron to about 25 microns.3. The composition of wherein the pumice and the hydrated lime are present in a weight ratio of pumice to hydrated lime of about 10:1 to about 1:1.4. The composition of wherein the hydrated lime is provided as calcium oxide.5. The composition of wherein the cement set retarder comprises at least one retarder selected from the group consisting of a phosphonic acid claim 1 , a phosphonic acid derivative claim 1 , a lignosulfonate claim 1 , a salt claim 1 , an organic acid claim 1 , a carboxymethylated hydroxyethylated cellulose claim 1 , a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups claim 1 , a borate compound claim 1 , and any mixture thereof.6. The composition of wherein the set retarder is present in an amount of about about 0.01% to about 5% by weight of the water.7. The composition of wherein the synthetic smectite has a thickness of less than about 100 nm and lateral dimensions of in a range of about 1 to about 100 nm claim 1 , the synthetic smectite being present in an amount of about 0.01% to about 5% by weight of the water8. The composition of wherein the water is present in the set-delayed cement composition in an amount in the range of from about 33% to about 200% by weight of the pumice claim 1 , the set-delayed cement composition having a density in a range of about 8 pounds per gallon to about 14 pounds per gallon.9. The composition of wherein the set-delayed cement composition further ...

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Номер записи: 80
01-09-2022 дата публикации

Thermal Insulating Plaster Mixture

Номер: US20220274877A1
Автор: Chlandová Gabriela, Spaniel Petr
Принадлежит: FIRST POINT A.S.

A mixture for a thermal insulating plaster, especially a mixture for a thermal insulating plaster that contains aqueous solution of silicate, which contains 78 to 90 volume percent of hollow glass microspheres, 5 to 17 volume percent of aqueous solution of potassium silicate, 0.1 volume percent of water-glass-binder stabilizer, 1.5 to 5 volume percent of styrene-acrylate dispersion, 0.4 to 3 volume percent of aqueous colloidal solution of silver, 0.2 to 2.4 volume percent of tensides as an aerating agent, and 0.5 to 7 volume percent of water. 1. A thermal insulating plaster mixture , comprising an aqueous solution of silicate comprising 78 to 90 volume percent of hollow glass microspheres , 5 to 17 volume percent of aqueous solution of potassium silicate , 0.1 volume percent of water-glass-binder stabilizer , 1.5 to 5 volume percent of styrene-acrylate dispersion , 0.4 to 3 volume percent of aqueous colloidal solution of silver , 0.2 to 2.4 volume percent of tensides as an aerating agent , and 0.5 to 7 volume percent of water.2. A thermal insulating plaster mixture which comprises an aqueous solution of silicate , comprising 75 to 90 volume percent of porous glass spheres , 1 to 4 volume percent of hollow glass microspheres , 4 to 14 volume percent of aqueous solution of potassium silicate , 1 to 6 volume percent of aqueous solution of sodium silicate , 0.1 volume percent of water-glass-binder stabilizer , 0.3 to 3 volume percent of styrene-acrylate dispersion , 0.4 to 3 volume percent of aqueous colloidal solution of silver , 0.2 to 2.4 volume percent of tensides as an aerating agent , 0.5 to 7 volume percent of water , and 0.1 to 1.5 volume percent of an admixture of calcium stearate and sodium oleate in the ratio of 1:2.3. The thermal insulating plaster mixture according to claim 1 , wherein the mixture further comprises hydrophilic alkoxyle alkyl ammonia salts as a water-glass-binder stabilizer.4. The thermal insulating plaster mixture according to claim 2 , ...

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Номер записи: 81
01-09-2022 дата публикации

AEROGEL- AND/OR XEROGEL-BASED MASS FOR ADVANCED MANUFACTURING AND USE THEREOF

Номер: US20220274880A1
Автор: Flatt Robert, Pont Daniel Sanz
Принадлежит:

A composition, in particular for use as a printable and/or extrudable mass, comprises or consists of: 10-99.99 vol. % of a high-porosity material, whereby the high-porosity material is an aerogel and/or a xerogel, 0.001-5.0 vol. % of an organic binding promoter and, optionally, balance to 100 vol. % of further components. 1. Composition , in particular for use as a printable and/or extrudable mass , comprising or consisting of:a) 10-99.99 vol. %, especially 60-99.99 vol. %, in particular 80-99.99 vol. %, of a high-porosity material, whereby the high-porosity material is an aerogel and/or a xerogelb) 0.001-5.0 vol. % of an organic binding promoterc) optionally, balance to 100 vol. % of further components.2. Composition according to claim 1 , whereby the volume proportion of the high-porosity material claim 1 , especially the aerogel claim 1 , in the composition is 85-99.99 vol. % claim 1 , most preferred 90-99.95 vol. %.3. Composition according to any of - claim 1 , whereby apart from the high-porosity material claim 1 , in particular the aerogel claim 1 , the volume proportion of all of the other constituents of the composition in dry state is lower than 7 vol. % claim 1 , preferably lower than 3 vol. % and even more preferably lower than 1 vol. %.4. Composition according to any of - claim 1 , whereby the high-porosity material comprises or consist of an aerogel in the form of a silica-based aerogel claim 1 , especially a hydrophobic silica-based aerogel claim 1 , with a particle density of 140-170 kg/m.5. Composition according to any of - claim 1 , whereby the organic binding promotor comprises or consists of a surfactant claim 1 , a block co-polymer claim 1 , a fluoropolymer claim 1 , a cellulose ether claim 1 , carbohydrate starch ether and/or a redispersible polymer.6. Composition according to claim 5 , whereby the organic binding promotor comprises or consists of a surfactant claim 5 , especially selected from the groups of ionic surfactants claim 5 , ...

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Номер записи: 82
01-09-2022 дата публикации

Compound for Reinforcing Surface Treatment

Номер: US20220274891A1
Автор: Chlandová Gabriela, Spaniel Petr
Принадлежит: FIRST POINT A.S.

A compound for reinforcing surface treatment, in particular a compound for waterproof reinforcing surface treatment of concrete containing water glass, which contains 1 to 10 wt % of bis (γ-triethoxysilylpropyl) tetrasulphide, 89.9 to 98 wt % of an aqueous solution of lithium silicate, and 0.1 to 1 wt % water glass stabiliser. 1. A compound for waterproof reinforcing surface treatment of concrete comprising water glass , comprising 1 to 10 wt % of bis (γ-triethoxysilylpropyl) tetrasulphide , 89.9 to 98 wt % of an aqueous solution of lithium silicate , and 0.1 to 1 wt % water glass stabilizer.2. The compound for reinforcing surface treatment claim 1 , according to claim 1 , wherein the water glass stabilizers are hydrophilic alkoxy alkyl-ammonium salts.3. The compound for reinforcing surface treatment according to claim 1 , wherein the aqueous solution of lithium silicate has a molar ratio of SiOand LiO is in the range of from 3.5 to 4.5. The invention relates to a compound for the reinforcing of surfaces, in particular to a compound for the waterproof reinforcing of concrete surfaces which contains water glass.From existing technology it is known that concrete is a composite material which is made up of binder, filler, water, and admixtures. The most common sort of concrete is cement concrete where the binder is cement and the filler is aggregate. A further most used type of cement is asphalt concrete. The character and uses of cement are influenced by the type of filler as well as binder, for example for heat resistant cement, cement with a larger portion of aluminates is used.To improve its mechanical properties iron reinforcements, cables, wires, various fibres eg. carbon or glass are added to concrete. As well, lightened concrete is produced with a porous structure, with the admixture being fly ash from coal combustion.The main problem of durability of concrete structures is the ongoing alkaline-silica reaction. It is a set of undesirable events between a ...

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Номер записи: 83
02-05-2019 дата публикации

THICKENERS AND HYDRAULIC COMPOSITIONS

Номер: US20190127276A1
Автор: Konishi Hidekazu, Saito Hironao, YAMAKAWA Tsutomu
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

A thickener is provided comprising an anionic polyacrylamide group containing at least two anionic polyacrylamides having different degrees of anionization, and a water-soluble cellulose ether. When added to a hydraulic composition, the thickener is effective for improving flow while maintaining rheological properties. 1. A thickener for hydraulic compositions comprising an anionic polyacrylamide group containing at least two anionic polyacrylamides having different degrees of anionization , and a water-soluble cellulose ether.2. The thickener of wherein in the anionic polyacrylamide group containing at least two anionic polyacrylamides having different degrees of anionization claim 1 , a difference in degree of anionization between anionic polyacrylamides is at least 3 mol %.3. The thickener of wherein in the anionic polyacrylamide group containing at least two anionic polyacrylamides having different degrees of anionization claim 1 , a weighted average value of the degrees of anionization is from more than 2.0 mol % to 33.2 mol %.4. The thickener of wherein the anionic polyacrylamide group has an alkali metal or alkaline earth metal cation as the counter cation.5. The thickener of wherein the anionic polyacrylamide group consists of a first anionic polyacrylamide having a degree of anionization of 1 mol % to 6 mol % and a second anionic polyacrylamide having a degree of anionization of more than 6 mol % to 40 mol %.6. The thickener of wherein the water-soluble cellulose ether has a 1 wt % aqueous solution viscosity of 30 to 30 claim 1 ,000 mPa·s at 20° C.7. The thickener of wherein the water-soluble cellulose ether is at least one member selected from the group consisting of alkyl celluloses claim 1 , hydroxyalkyl celluloses and hydroxyalkyl alkyl celluloses.8. The thickener of claim 1 , further comprising a defoamer.9. A hydraulic composition comprising the thickener of claim 1 , a hydraulic substance claim 1 , and water. This non-provisional application claims ...

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Номер записи: 84
23-04-2020 дата публикации

Non-invasive cement spacer fluid compositions, spacer fluid products, methods of well operation and well apparatus

Номер: US20200123430A1
Автор: Boyce D. Burts, Boyce Donald Burts, III
Принадлежит: Bottom Line Industries Inc

Spacer compositions and products may include a biopolymer component, a plant fiber component, and a weighting agent component, and in further non-limiting embodiments may include xanthan gum, a blend of plant fibers, and a weighting agent component. These spacer compositions and spacer products may be utilized in well fluid operations, including well cementing operations and well completion operations.

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Номер записи: 85
03-06-2021 дата публикации

A DISPERSANT COMPOSITION

Номер: US20210163356A1
Автор: LEI Fang Hua, MAHADEVAN Viswanath, MATSUMOTO Toshimi
Принадлежит:

A dispersant composition includes a) at least one polymer constituted of monomers having naphthalene ring and/or melamine; b). at least one polymer having carboxylic acid and/or phosphoric acid group and/or any group that is hydrolyzed into carboxylic or phosphoric; and c). at least one polymer having a structure of Formula I: 7. The dispersant composition according to claim 1 , wherein the ratio by weight of said Component a) to Component b) is from 1:10 to 10:1.8. The dispersant composition according to claim 1 , wherein the ratio by weight of said Component c) to the sum of Component a) and b) is from 1:100 to 1:5.9. The dispersant composition according to claim 1 , wherein the dispersant composition is an aqueous composition.10. A mortar or concrete comprising cement and the dispersant composition of as a dispersant claim 1 , wherein the weight percentage of said dispersant composition is from 0.01% to 2.5% based on the weight of cement in the mortar or concrete.11. The mortar or concrete of claim 10 , wherein said dispersant composition is dissolved in water before added into the mortar or concrete claim 10 , wherein the ratio by weight of said dispersant composition and water is from 1:10 to 1:1.22. The dispersant composition according to claim 7 , wherein the ratio by weight of said Component a) to Component b) is from 1:3 to 3:1.23. The dispersant composition according to claim 22 , wherein the ratio by weight of said Component a) to Component b) is from 1:2 to 2:1.24. The dispersant composition according to claim 8 , wherein the ratio by weight of said Component c) to the sum of Component a) and b) is from 1:50 to 1:6.25. The mortar or concrete of claim 11 , wherein said dispersant composition is dissolved in water before added into the mortar or concrete claim 11 , wherein the ratio by weight of said dispersant composition and water is from 1:6 to 1:1.5. This invention relates to a dispersant composition, more specifically, relates to a dispersant ...

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Номер записи: 86
09-05-2019 дата публикации

Formulation for the production of acid and heat-resistant construction products

Номер: US20190135694A1
Автор: Maxim Pulkin, Tatiana Mitkina
Принадлежит: CONSTRUCTION RESEARCH AND TECHNOLOGY GmbH

The present invention suggests novel inorganic binder formulations and the use of these formulations for the production of acid and heat-resistant construction products.

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Номер записи: 87
30-04-2020 дата публикации

COPOLYMERS HAVING A GRADIENT STRUCTURE

Номер: US20200131089A1
Автор: WEIDMANN Jürg, Zimmermann Jörg
Принадлежит: SIKA TECHNOLOGY AG

The present invention relates to a copolymer, especially for use as a dispersant for solid particles, in particular for use as dispersant for mineral binder compositions, having a polymer backbone and side chains bonded thereto, comprising at least one ionizable monomer unit M1 and at least one side chain-bearing monomer unit M2, wherein the copolymer has a gradient structure in at least one section A in a direction along the polymer backbone with regard to the ionizable monomer unit M1 and/or with regard to the side chain-bearing monomer unit M2. 1. A copolymer having a polymer backbone and side chains bonded thereto , and comprising at least one ionizable monomer unit M1 and at least one side chain-bearing monomer unit M2 , the copolymer having:at least one section A having a gradient structure in a direction along the polymer backbone with regard to the ionizable monomer unit M1 and/or with regard to the side chain-bearing monomer unit M2, andat least one section B having an essentially constant local concentration of monomers and/or a random distribution of monomers, wherein the at least one section B comprises ionizable monomer units M1 and/or side chain-bearing monomer units M2,wherein a ratio of the number of monomer units in the at least one section A to the number of monomer units in the at least one section B is in the range of 80:20 to 20:80.2. The copolymer as claimed in claim 1 , wherein the polydispersity of the copolymer is <1.5.3. The copolymer as claimed in claim 1 , wherein the polydispersity of the copolymer is in the range of 1.0-1.4.4. The copolymer as claimed in claim 1 , wherein the at least one section A has a proportion of at least 30% of monomer units claim 1 , based on a total number of the monomer units in the polymer backbone.5. The copolymer as claimed in claim 1 , wherein the at least one section A has a proportion of at least 50% of monomer units claim 1 , based on a total number of the monomer units in the polymer backbone.6. The ...

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Номер записи: 88
09-05-2019 дата публикации

TUNABLE CONTROL OF POZZOLAN-LIME CEMENT COMPOSITIONS

Номер: US20190136115A1
Автор: Agapiou Kyriacos, Pisklak Thomas Jason
Принадлежит: Halliburton Energy Services, Inc.

Disclosed herein are cement compositions and methods of using cement compositions in subterranean formations. An embodiment discloses a method of formulating a cement composition. The method may comprise measuring surface area of a group of pozzolans, wherein the smallest measured surface area of the group of pozzolans and the largest measured surface area of the group of pozzolans vary by about 50% or greater. The method may further comprise selecting one or more pozzolans from the group of pozzolans. The method may further comprise adding components comprising lime and water to the selected one or more pozzolans to form a cement composition. 1. A method of formulating a cement composition:measuring surface area of a group of pozzolans, wherein the smallest measured surface area of the group of pozzolans and the largest measured surface area of the group of pozzolans vary by about 50% or greater;selecting one or more pozzolans from the group of pozzolans;adding components comprising lime and water to the selected one or more pozzolans to form a cement composition.2. A method according to wherein the group of pozzolans are selected from the group consisting of: fly ash claim 1 , silica fume claim 1 , metakaolin claim 1 , pumice claim 1 , and any combination thereof.3. A method according to wherein the cement composition further comprises a set retarder claim 1 , wherein the set retarder comprises at least one retarder selected from the group consisting of a phosphonic acid claim 1 , a phosphonic acid derivative claim 1 , a lignosulfonate claim 1 , a salt claim 1 , an organic acid claim 1 , a cellulose derivate claim 1 , a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups claim 1 , a borate compound claim 1 , and any combination thereof.4. A method according to wherein the cement composition further comprises at least one dispersant selected from the group consisting of a sulfonated-formaldehyde-based dispersant claim 1 , a polycarboxylated ...

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Номер записи: 89
28-05-2015 дата публикации

DISPERSING POLYMERS WITH IMPROVED THERMAL STABILITY

Номер: US20150148455A1
Автор: Desseroir Alexandre, Labourt-Ibarre PIERRE, Lemaire Marc, Maitrasse Philippe, Popowycz Florence
Принадлежит: CHRYSO

The invention relates mainly to a polymer comprising a hydrocarbon-based main chain bearing carboxylic groups and polyalkoxylated chains and up to 4% by weight of anti-oxidant groups, relative to the weight of the final polymer, grafted to the main chain. It also relates to a method for preparing such a polymer and to an admixture which is of use as a plasticizer of suspensions of mineral particles comprising same. Finally, it is related to the use of such a polymer for fluidifying suspensions of mineral particles and reducing the water demand of hydraulic compositions. 1. A polymer comprising a main hydrocarbon chain bearing carboxylic groups and polyalkoxylated chains , comprising 0.01 to 4% by weight , based on the weight of the final polymer , of antioxidant groups grafted to the main chain.2. The polymer according to claim 1 , comprising between 0.1 and 4% by weight of antioxidant groups claim 1 , based on the weight of the polymer.3. The polymer according to claim 1 , wherein the antioxidant groups comprise an aromatic amine.5. The polymer according to claim 1 , wherein the antioxidant group is grafted to the main chain via a carboxylic group claim 1 , by means of an amide or ester bond.6. The polymer according to claim 1 , wherein the polymer has a weight average molar mass of between 1 claim 1 ,000 and 1 claim 1 ,000 claim 1 ,000 (Mw).7. The polymer according to claim 1 , as a powder.8. A method for preparing a polymer according to claim 1 , comprising the step of:(i) esterifying a polycarboxylic compound with an alkoxy polyalkoxyglycol in the presence of an antioxidant compound, which may react under conditions of the reaction with a reactive function born by the polycarboxylic compound in order to form a covalent bond between the polycarboxylic compound and the antioxidant compound.9. The method according to claim 8 , wherein the step (i) is carried out in two distinct steps:(a) the reaction mixture is first brought to a temperature comprised between 50 ...

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Номер записи: 90
24-05-2018 дата публикации

BRANCHED ALKYL SULFATE GYPSUM FOAMER

Номер: US20180141014A1
Автор: Mirous Brian K.
Принадлежит:

A surfactant composition is disclosed comprising branched alkyl sulfate having 8 to 12 carbon atoms; optionally a linear alkyl sulfate having 8 to 12 carbon atoms; and optionally an alkyl ether sulfate having 8 to 13 carbon atoms. A gypsum slurry or gypsum board core is disclosed comprising gypsum, water, and a surfactant composition as described above. The foam voids in the core have a greater median diameter than foam voids made with corresponding linear alkyl sulfate. A method of controlling the median foam void diameter in a gypsum board is disclosed. A first foam water composition is provided comprising a linear alkyl sulfate surfactant. A second foam water composition is also provided comprising a branched alkyl sulfate surfactant. The proportions of the first and second foam water compositions employed in a gypsum composition are selected, or if desired changed, to provide the desired median foam void diameter. 1. A surfactant composition comprising: {'br': None, 'sup': 1', '− +', '1, 'sub': '3', 'ROSOM,'}, 'from 12 to 95 wt. % by total surfactant weight of a branched alkyl sulfate having the structure{'sup': 1', '1, 'in which Ris branched alkyl having from 8 to 12 carbon atoms and Mis a cation;'} {'br': None, 'sup': 2', '− +', '2, 'sub': '3', 'ROSOM,'}, 'from 0 to 88 wt. % by total surfactant weight of a linear alkyl sulfate having the structure{'sup': 2', '2, 'in which Ris linear alkyl having from 8 to 12 carbon atoms and Mis a cation; and'} {'br': None, 'sup': 3', '− +', '3, 'sub': 2', '2', 'y', '3, 'R(OCHCH)OSOM'}, 'from 0 to 30 wt. % by total surfactant weight of an alkyl ether sulfate having the structure{'sup': '3', 'in which Ris branched alkyl or linear alkyl or a combination thereof having from 8 to 13 carbon atoms, y has an average value from 0.1 to 5, and M3 is a cation; in which'}M1, M2, and M3 are independently selected.3. The composition of claim 2 , in which the weight ratio is from at least 15:85 to at most 85:15.49-. (canceled)10. The ...

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Номер записи: 91
24-05-2018 дата публикации

POROUS CERAMIC STRUCTURE

Номер: US20180141872A1
Автор: KOBAYASHI Hiroharu, ORIBE Akinobu, TOMITA Takahiro
Принадлежит: NGK Insulators, Ltd.

A porous ceramic structure has a porosity of 20% to 99%, and includes one principal surface and another principal surface opposite to the one principal surface. At least one cut is formed from the one principal surface toward the other principal surface. An aspect ratio of a divided portion divided by the cut is greater than or equal to 3. 1. A porous ceramic structure having a porosity of 20% to 99% , comprising one principal surface , and another principal surface opposite to the one principal surface ,wherein at least one cut is formed from the one principal surface toward the other principal surface, andan aspect ratio of a portion divided by the cut is greater than or equal to 3.2. The porous ceramic structure according to claim 1 , wherein a relationship 1/10≤ha/ta≤9/10 is satisfied where ha is a depth of the cut and to is a thickness of the porous ceramic structure.3. The porous ceramic structure according to claim 1 , wherein a minimum length of the porous ceramic structure is less than or equal to 500 μm.4. The porous ceramic structure according to claim 1 , wherein an average pore diameter of the porous ceramic structure is less than or equal to 500 nm.5. The porous ceramic structure according to claim 1 , wherein a thermal conductivity of the porous ceramic structure is less than or equal to 1 W/mK.6. The porous ceramic structure according to claim 1 , wherein the porous ceramic structure has a structure in which fine grains are connected in three dimensions claim 1 , and a grain diameter of the fine grains is 1 nm to 5 μm.7. The porous ceramic structure according to claim 1 , wherein the porous ceramic structure is disposed on a sheet. This application is a Continuation of International Application No. PCT/JP2016/066506 filed on Jun. 2, 2016, which is based upon and claims the benefit of priority from Japanese Patent Applications No. 2015-141897 filed on Jul. 16, 2015 and No. 2015-235495 filed on Dec. 2, 2015, the contents all of which are incorporated ...

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Номер записи: 92
15-09-2022 дата публикации

LIGHTWEIGHT STRUCTURAL CONCRETE FROM RECYCLED MATERIALS

Номер: US20220289630A1
Автор: Rockett Bart
Принадлежит:

A method of forming a lightweight concrete comprising lightweight aggregates (LWA) made from recycled materials and the resulting composition. The lightweight concrete may be formed by adding calcium sulfoaluminate (CSA) cement and a specialized grout to an amount of water in a mixer, wherein a ratio of the water to the CSA cement is 1 quart to every 10 lbs of CSA cement. The CSA cement, specialized grout, and water may be blended to a smooth consistency. LWA may be added to the blended CSA cement, specialized grout, and water, wherein a ratio of the CSA cement to LWA is 60/40 by weight. The mixture of LWA, CSA cement, specialized grout, and water may be poured over a fiberglass rebar. The mixture may be allowed to cure and before being densified with a lithium densifier. 1. A method of forming a lightweight concrete comprising:adding calcium sulfoaluminate (CSA) cement and specialized grout to an amount of water in a mixer, wherein a ratio of the water to the CSA cement is 1 quart to every 10 lbs of CSA cement;blending the CSA cement, specialized grout, and water to a smooth consistency;adding lightweight aggregates (LWA) to the blended CSA cement, specialized grout and water to form a mixture, wherein a ratio of the CSA cement to LWA is 60/40 by weight;pouring the mixture over a fiberglass rebar;allowing the mixture to cure; anddensifying the cured mixture with a lithium densifier.2. The method of claim 1 , wherein the blending is done for approximately 3 minutes.3. The method of claim 1 , wherein the fiberglass rebar comprises one or more individual rods having a diameter of approximately ¼″ to 1″.4. The method of claim 1 , wherein the fiberglass rebar comprises a three-dimensional (3D) cage.5. The method of claim 4 , wherein the individual rods of the 3D cage are spaced approximately 1″ apart.6. The method of claim 1 , wherein the LWA comprises one or more of recycled plastics and lightweight-foamed glass aggregates (FG-LWA).7. The method of claim 1 , wherein ...

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Номер записи: 93
31-05-2018 дата публикации

WELL CEMENTING COMPOSITIONS AND METHODS

Номер: US20180148630A1
Автор: Lafitte Valerie Gisele Helene, PANGA Mohan Kanaka Raju, Yakovlev Andrey Vladimirovich
Принадлежит:

Cement slurry compositions comprising water, an inorganic cement and additive comprising nanocrystalline cellulose, microcrystalline cellulose, cellulose fibrils, or bacterial nanocellulose or combinations thereof have reduced fluid loss values. Such compositions may be prepared and placed in subterranean wells. The compositions are suitable for use during primary cementing or remedial cementing operations. 1. A composition , comprising:(i) water;(ii) an inorganic cement or a weighting agent; and(iii) an additive comprising nanocrystalline cellulose, microcrystalline cellulose, cellulose fibrils, or bacterial nanocellulose or a combination thereof.2. The composition of claim 1 , wherein the cellulose fibrils are microfibrils or nanofibrils or both.3. The composition of claim 1 , wherein the additive is present at a concentration between 0.001% and 5% by weight of the cement.4. The composition of claim 1 , wherein the nanocrystalline cellulose claim 1 , microcrystalline cellulose claim 1 , cellulose fibrils claim 1 , or bacterial nanocellulose or a combination thereof have diameters between 4 nanometers and 20 microns.5. The composition of claim 1 , wherein the nanocrystalline cellulose claim 1 , microcrystalline cellulose claim 1 , cellulose fibrils claim 1 , or bacterial nanocellulose or a combination thereof have lengths between 50 nanometers and 3 millimeters.6. The composition of claim 1 , wherein the cement comprises portland cement claim 1 , calcium aluminate cement claim 1 , fly ash claim 1 , blast furnace slag claim 1 , lime/silica blends or zeolites or combinations thereof.7. The composition of claim 1 , wherein the composition is a spacer composition that further comprises a surfactant.8. The composition of claim 7 , wherein the cellulose additive is present at a concentration between 0.001% and 10% by weight of water.9. The composition of claim 7 , wherein the weighting agent is selected from the group consisting of barite claim 7 , hematite claim 7 , ...

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Номер записи: 94
01-06-2017 дата публикации

METHOD AND SYSTEM FOR ON-LINE BLENDING OF FOAMING AGENT WITH FOAM MODIFIER FOR ADDITION TO CEMENTITIOUS SLURRIES

Номер: US20170152177A1
Автор: LI Alfred C., SONG Weixin D., Vilinska Annamaria
Принадлежит:

Disclosed is a method and system for blending a foam modifier with foaming agent online, e.g., as may be particularly useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C-Cfatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process. 1. A method of making a foamed cementitious board comprising:(a) blending a first amount of a first foaming agent, a second amount of a second foaming agent, and a third amount of a fatty alcohol to form an aqueous blended stream, wherein the first, second, and third amounts are in a first weight ratio;(b) controllably changing the first, second, and/or third amounts to form a second weight ratio, which is different than the first weight ratio;(c) inserting air into the blended stream to form foam;(d) mixing at least water, cementitious material, and the foam to form a slurry;(e) disposing the slurry between a first cover sheet and a second cover sheet to form a board precursor;(f) cutting the board precursor into a board; and(g) drying the board.2. The method of claim 1 , wherein a process controller is used to controllably change the first claim 1 , second claim 1 , and/or third amounts.3. The method of claim 2 , wherein the first claim 2 , second claim 2 , and third amounts are controlled by a flow metering system claim 2 , and wherein the process controller communicates with the flow metering system to adjust one or more of the first claim 2 , second claim 2 , and third amounts.4. The method of claim 3 , wherein the flow metering system comprises at least one pump operatively associated with valves for controlling flow of each of the first foaming agent claim 3 , second foaming agent ...

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Номер записи: 95
01-06-2017 дата публикации

High Temperature Lightweight Thermal Insulating Cement and Silica Based Materials

Номер: US20170152181A1
Автор: Andersen Per Just, Daniels Evan R.
Принадлежит: The Intellectual Gorilla GmbH

A high temperature lightweight thermal insulating material is formed from a mixture that includes cement or silica sand, water and a foaming agent. The foaming agent can be an aluminum powder or a surfactant. The insulating material has a maximum use temperature greater than about 600 degrees Celsius. 1. An insulating material formed from a mixture comprising:a cement or silica sand;water;a foaming agent comprising an aluminum powder or a surfactant; andthe insulating material having a maximum use temperature greater than about 600 degrees Celsius.24-. (canceled)5. The insulating material as recited in claim 1 , the insulating material having:{'sup': '3', 'a density in a range of about 0.1 to 1.0 g/cm;'}a thermal conductivity in a range of about 0.05 to 0.30 W/(m·K); anda compressive strength in a range of about 30 to 3000 PSI (2.068 to 206.8 Bar).6. The insulating material as recited in claim 1 , wherein:the maximum use temperature is in a range of about 650 to 900 degrees Celsius whenever the cement or silica sand comprises ordinary Portland cement;the maximum use temperature is in a range of about 900 to 1800 degrees Celsius whenever the cement or silica sand comprises calcium aluminate cement; andthe maximum use temperature is in a range of about 650 to 1000 degrees Celsius whenever the cement or silica sand comprises silica sand.78-. (canceled)9. The insulating material as recited in claim 1 , the mixture having a water to cement or silica sand ratio by weight in the range of about 0.2 to 2.0.10. The insulating material as recited in claim 1 , the mixture having a water to cement or silica sand ratio by weight of about 1.0.11. The insulating material as recited in claim 1 , further comprising a high range water reducer (HRWR) in an amount of about 0.25 to 4.0% of a weight of the cement or silica sand.12. (canceled)13. The insulating material as recited in claim 1 , wherein:the aluminum powder in an amount of about 0.5 to 3.0% by weight of the cement or silica ...

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Номер записи: 96
07-06-2018 дата публикации

STABILISATION OF MINERAL FOAMS

Номер: US20180155243A1
Автор: CASTAING Jean-Christophe, KAREGIANNI Katerina, Labeau Marie-Pierre, VANBERLEERE Arnaud
Принадлежит:

The invention relates to a mineral foam stabilised by an association of surfactants comprising: a first surfactant carrying at least one sulfate group; and a second amphoteric surfactant. 1. A mineral foam containing water , mineral particles , and a combination of surfactants comprising:at least one first surfactant (S1) bearing at least one sulfate group; andat least one second surfactant (S2) that is amphoteric.2. The mineral foam as claimed in claim 1 , wherein the mineral particles are particles of plaster.3. The mineral foam as claimed in claim 1 , further comprising water-repellent agents.4. The mineral foam as claimed in claim 1 , for the transport of said mineral particles.5. The mineral foam as claimed in claim 1 , wherein the first surfactant is selected from the group consisting of:alkyl ether sulfates;alkyl sulfates; andmixtures of two or more of these compounds.6. The mineral foam as claimed in claim 1 , wherein the first surfactant is selected from the group consisting of:amine oxides;glycinates;sultaines; andmixtures of two or more of these compounds.7. A process for forming a stable foam suitable for putting in contact with mineral particles claim 1 , the process comprising forming the foam with a combination of surfactants comprising:at least one first surfactant (S1) bearing at least one sulfate group; andat least one second surfactant (S2) that is amphoteric.8. The mineral foam as claimed in claim 2 , suitable for the formation of lightweight building materials.9. The mineral foam as claimed in claim 5 , wherein alkyl ether sulfates are C8-C18 alkyl ether sulfates.10. The mineral foam as claimed in claim 9 , wherein C8-C18 alkyl ether sulfates are C12 and C13 alkyl ether sulfates.11. The mineral foam as claimed in claim 5 , wherein alkyl sulfates are C8-C18 alkyl sulfates.12. The mineral foam as claimed in claim 11 , wherein C8-C18 alkyl sulfates are C12 alkyl sulfates. The present invention relates to the domain of what are called “mineral foams ...

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Номер записи: 97
07-06-2018 дата публикации

SYSTEM AND METHOD FOR PRODUCING AN IN-SITU PUR FOAM

Номер: US20180155517A1
Автор: Aßmann Jens, Hahn Klaus, Hähnle Hans-Joachim, NESTLE Nikolaus, SIMANCAS Kimberly, Ulanova Tatiana, von Benten Rebekka
Принадлежит:

A system for producing an in-situ foam, which comprises the components 116-. (canceled)17. A process for producing an in-situ foam , the process comprising providing a system , the system comprising the following components:from 50 to 98% by weight of one or more inorganic fillers as component A,from 1 to 48% by weight of one or more water-soluble, cationic polymers as component B,from 0.5 to 48% by weight of one or more surfactants as component C,from 0.01 to 5% by weight of one or more crosslinkers as component D, which are capable of reacting with the cationic polymers,from 0 to 20% by weight of one or more additives as component E,where the percentages by weight of the components A to E are based on the nonaqueous fraction and the sum of components A to E is 100% by weight. andintroducing a gas, or a gas mixture, to the system components to produce the in-situ foam.18. The process according to claim 17 , wherein the one or more cationic polymers includes polyvinylamine or a poly(vinylamine-vinylformamide) copolymer.19. The process according to claim 17 , wherein the one or more surfactants includes a mixture of anionic and nonionic surfactants.20. The process according to claim 17 , wherein the one or more crosslinkers includes a dialdehyde crosslinker.21. The process according to claim 17 , wherein the one or more inorganic fillers are selected from calcium sulfate claim 17 , aluminum silicates claim 17 , or mixtures thereof22. The process according to claim 17 , wherein the providing of the system components comprises preparing an aqueous suspension having a solids content in the range from 30 to 50% by weight prepared from the components A to D claim 17 , and introducing compressed air having a pressure in the range from 100 to 2000 kPa in to the aqueous suspension.23. The process according to claim 17 , wherein the introducing of the gas claim 17 , or the gas mixture claim 17 , comprises the introduction into an aqueous solution or suspension comprising at ...

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Номер записи: 98
22-09-2022 дата публикации

STABILIZED GYPSUM PARTICLES

Номер: US20220298069A1
Автор: DIETZSCH Michael, GAEDT Torben, Gehrig Uwe, Hesse Christoph, NIEDERMAIR Fabian, SCHLESINGER Maik
Принадлежит:

The present invention is directed to a construction chemical composition for the preparation of gypsum articles, said construction chemical composition comprising fine calcium sulfate and a dispersant being a polyarylether. Further the present invention is directed to a process for preparing said construction chemical composition as well as an article comprising said construction chemical composition. 116.-. (canceled)17. A construction chemical composition , comprisingi) fine calcium sulfate particles having a D (0.63) particle size of less than 10.0 μm determined with laser diffraction according to Mie Theory, andii) a dispersant being a polyarylether,wherein the weight ratio between the fine calcium sulfate particles and the dispersant is in the range of 0.1:99.9 to 99.9:0.1.18. A construction chemical composition according to claim 17 , wherein the fine calcium sulfate particles are present in the form of calcium sulfate hemihydrate claim 17 , calcium sulfate dihydrate claim 17 , anhydrous calcium sulfate or mixtures thereof.19. A construction chemical composition according to claim 17 , wherein the polyarylether is a polycondensation product comprisingi) at least one aromatic or heteroaromatic structural unit comprising a polyether side chain, andii) at least one phosphated aromatic or heteroaromatic structural unit.21. A process for the preparation of a construction chemical composition comprising fine calcium sulfate having a D (0.63) particle size of less than 10.0 um determined with laser diffraction according to Mie Theory and a dispersant being a polyarylether claim 17 , said process comprising the steps ofaa) providing a suspension comprising calcium sulfate particles having a D (0.63) particle size equal or above 10.0 um determined with laser diffraction according to Mie Theory, water and a dispersant being a polyarylether, andab) wet-grinding of the slurry obtained in step aa), thereby obtaining the construction chemical composition,wherein the weight ...

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Номер записи: 99
22-09-2022 дата публикации

PREPARATIONS FOR INDUSTRIAL USE AND THEIR PRODUCTION METHODS

Номер: US20220298074A1
Автор: GALBANI Giuseppina Alba Letizia
Принадлежит: : IDEE VULCANICHE S.R.L.

Preparation in liquid or creamy or powder form to be used for materials for industrial use such as refractory products, products cementitious, products for buildings, aggregates, binders of various kinds, plastics, natural and synthetic rubber, polymers, bitumen, bituminous conglomerates, active substances that evaporate or dissipate quickly, belonging to insecticides, biocides, pesticides, pesticides, etc., which are made from animal mixtures of oils or fats and at least one base dissolved in water, with percentages by weight of components comprised respectively between 70% and 99.9% of oil or mixture of oils, 0.1% and 10% of base and 0% and 20% of water. 2. The preparation according to claim 1 , wherein said base is a sodium hydroxide at 98/99% purity.3. The preparation according to claim 2 , wherein said sodium hydroxide is dissolved in water in a percentage by weight ranging between 10% and 50%.4. The preparation according to claim 2 , further comprising one kilogram of mineral oil of first production and derivative oil and a residue produced during mineral oil processing and exhaust mineral oil and from 2 to 50 g of sodium hydroxide claim 2 , dissolved in 7-150 g of water.5. The preparation according to claim 2 , further comprising one kilogram of sunflower vegetable oil and other types of vegetable oils of first production and a derivative and residue produced during vegetal oil processing and a cashew nut oil and from 2 to 50 g of sodium hydroxide claim 2 , dissolved in 7-150 g of water.6. The preparation according to claim 2 , further comprising one kilogram of rapeseed oil residue and a derivative and residue of animal fat processing and a mixture thereof and from 2 to 50 g of sodium hydroxide claim 2 , dissolved in 7-150 g of water.7. The preparation according to claim 4 , further comprising one kilogram of vegetable ester oil and a derivative and a residue produced during vegetable ester oil processing and exhaust vegetable ester oil and from 2 to 50 g of ...

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Номер записи: 100