ПРИМЕНЕНИЕ КОМБИНАЦИИ ГРЕБНЕОБРАЗНЫХ ПОЛИМЕРОВ В КАЧЕСТВЕ ДОБАВКИ, УЛУЧШАЮЩЕЙ ПРИГОДНОСТЬ ДЛЯ ОБРАБОТКИ ВОДНОГО СОСТАВА НА ОСНОВЕ ГИДРАВЛИЧЕСКИХ ВЯЖУЩИХ

Настоящее изобретение касается применения при приготовлении водного состава на основе гидравлических вяжущих комбинаций по меньшей мере одного гребнеобразного сополимера, содержащего (мет)акриловый скелет, на который привиты боковые цепочки, содержащие гидрофильную группу, и по меньшей мере одного гребнеобразного сополимера, содержащего (мет)акриловый скелет, на который привиты боковые цепочки, оканчивающиеся гидрофобной группой. Изобретение также относится к водному составу на основе гидравлических вяжущих, содержащему: а) по меньшей мере один гребнеобразный (мет)акриловый сополимер, содержащий по меньшей мере одну боковую цепь, несущую по меньшей мере одну гидрофильную алкоксигруппу или гидроксильную группу полиалкиленгликоля, б) по меньшей мере один гребнеобразный (мет)акриловый сополимер, содержащий по меньшей мере одну боковую цепь, несущую по меньшей мере одну гидрофобную группу. Изобретение развито в зависимых пунктах формулы изобретения. Технический результат - обеспечение пригодности ...

БЛОК-СОПОЛИМЕРЫ, ФОРМИРУЮЩИЕ ПОЛИЭЛЕКТРОЛИТНЫЙ СЛОЙ, КОМПОЗИЦИИ С НИМИ И ИХ ПРИМЕНЕНИЕ

КОМПОЗИЦИЯ, СОДЕРЖАЩАЯ ПОЛУУПОРЯДОЧЕННЫЙ ГИДРОСИЛИКАТ КАЛЬЦИЯ

USE OF STATISTIC COMB POLYMERS AS DISPERSING AGENTS

DISPERSING AGENT ABSTENTION CEMENT COMPOSITION FOR DRILLINGS FOR OIL

Low-to-mid-range water reduction using polycarboxylate comb polymers

Methods for plasticizing cementitious mixtures having relatively high water/cement ratio (at least 0.40 or higher) are surprisingly improved in terms of dosage efficiency, compared to conventional "superplasticizer" polycarboxylate polymers, when the polycarboxylate polymer is formed from particularly small-sized, specifically selected monomer constituents: (A) polyoxyalkylene monomer represented by the structural formula (R ...

Use of comb polymers for controlling the rheology of mineral binder compositions

A comb polymer is used for increasing the flow rate and/or reducing the viscosity of a mineral binder composition, where the comb polymer has a main chain comprising acid groups and there are pendent chains linked to the main chain, and where the average number-average molar mass of all of the pendent chains is from 120 to 1000 g/mol and the molar ratio of the acid groups to the side chains is in the range from 0.5 to 2.

METHOD FOR MANUFACTURING A MINERAL PANEL

MORTAR CONTAINING POLYURETHANE DISPERSION WITH ETHYLENE OXIDE UNITS

The present invention relates to a compostion comprising: - at least one waterbased polyurethane dispersion containing ethylene oxide units, - at least one cement, and - at least one mineral filler. The composition can be mixed and applied without coagulation of the polyurethane dispersion. Upon curing, it has a high strength and good adhesion properties, with surprisingly low shrinkage and most surprisingly good water impermeability properties. It is particularly suitable for the use as repair mortar, waterproofing mortar or screed mortar.

DISPERSING POLYMERS WITH IMPROVED THERMAL STABILITY

POLYMER DISPERSERS WITH IMPROVED TEMPERATURE STABILITY

USE OF A COMB POLYMER COMBINATION AS AN AGENT FOR IMPROVING THE HANDLING OF A FORMULATION AQUEOUS HYDRAULIC BINDER.

RADIATION-INDUCED THICKENING FOR SET-ON-COMMAND SEALANT COMPOSITIONS AND METHODS OF USE

The present invention includes methods relating to the setting of fluids or slurries in a wellbore. In one embodiment, a method of isolating a portion of a wellbore by preparing a sealant composition comprising a fluid component and a polymeric additive component, placing the sealant composition into a wellbore and subjecting the sealant composition to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive components and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition. The present invention also includes compositions relating to the setting of fluids or slurries in a wellbore. In one embodiment, a sealant composition having a fluid component and a polymeric additive component can be subjected to ionizing radiation.

SOLID SUPPORTED COMB-BRANCHED COPOLYMERS AS AN ADDITIVE FOR GYPSUM COMPOSITIONS

A gypsum composition suitable for use in the manufacture of gypsum products is provided. The gypsum composition includes gypsum, water, and a solid dispersant comprising a supported acrylic/polyether comb-branched copolymer. A method of making a gypsum composition is also provided. The method includes mixing together, in any combination, gypsum, water, and a solid dispersant comprising a supported acrylic/polyether comb-branched copolymer.

Statistic comb polymers, method for producing the same and their use

Statistic comb polymers obtainable by the radical copolymerization of a vinylic poly(alkylenoxide) compound (A) with an ethylenically unsaturated monomer compound (B) according to the catalytic chain transfer method (CCT). The comb polymers are extremely suitable for hydraulic binder suspensions based on cement, lime, gypsum and anhydrite as they have, for the same dosage, an improved water reducing power over conventional flow agents. The corresponding building material mixtures are characterized by a substantially reduced stickiness and plastic viscosity once said comb polymers are added, which dramatically improves the plasticity of very cement-rich building material mixtures, such as concretes. The building material mixtures using the inventive flow agents have a considerably increased slump flow and an increased shear-thinning behavior as compared to conventional concretes without the tendency to segregate.

Polycondensates having isobutylene side chain

A polycondensation product based on aromatics and/or heteroaromatics and aldehydes, the polycondensate containing at least one structural unit (I) having a polyisobutylene side chain and an aromatic or heteroaromatic and at least one structural unit (II) having an ionizable functional group and an aromatic or heteroaromatic, structural unit (I) not being the same as structural unit (II) and the aldehyde used having no acid or ester functions. A process for the preparation and the use as an additive for hydraulic binders are disclosed.

Controllable high flow concrete

The present invention relates to very high workable yet controllable concrete mix design, admixture composition, and process for placing concrete. The mix design relates to particular aggregate/cement ratios and types which are characteristic of ready mix concrete (RMC), which provide high fluidity reminiscent of self-consolidating concrete (SCC), and which provides advantages over both RMC and SCC in terms of ease and speed in placement and finishability at the construction site placement zone, regardless of whether into a horizontal formwork (e.g., for slabs, floors) or into vertical formwork (e.g., for blocks, walls, columns, etc.), without loss of control and without generating high risks of segregation even when small amounts of water are added at the size to facilitate finishing of the concrete surface. An inventive admixture combination which enables this unique design involves two different polycarboxylate comb polymers in combination with two specific viscosity modifying agents ...

КОМПОЗИЦИЯ УСКОРИТЕЛЯ СХВАТЫВАНИЯ

Изобретение относится к композициям ускорителя схватывания, содержащим неорганические соединения, выбранные из гидрата силиката кальция (C-S-H), эттрингита или фаз AFm кальцийсодержащих неорганических соединений и сополимера, содержащего простые полиэфирные макромономеры тиовинилового простого эфира и анионные мономеры, при этом массовое соотношение сополимера и кальция составляет от 1/20 до 20/1. В дополнение оно относится к способам получения композиций и смесям строительных материалов, содержащим композиции, и к применению указанных композиций. Изобретение развито в зависимых пунктах формулы изобретения. Технический результат - ускорение набора прочности на ранних стадиях твердения. 4 н. и 13 з.п. ф-лы, 3 табл., 1 ил.

ДОБАВКА ДЛЯ СТРОИТЕЛЬНЫХ ХИМИЧЕСКИХ КОМПОЗИЦИЙ

ДОБАВКА ДЛЯ ГИДРАВЛИЧЕСКОЙ КОМПОЗИЦИИ

КОМПОЗИЦИЯ УСКОРИТЕЛЯ СХВАТЫВАНИЯ

COMB POLYMERS AS BLOCKING ADDITIVES FOR SWELLING CLAYS

A comb polymer, in particular for use as a clay-inerting agent, comprises: a) at least one poly(alkylene oxide) side chain-bearing monomer unit M1 without ionic groups, b) optionally at least one cationic monomer unit MC, c) optionally at least one anionic monomer unit MA, c) optionally, at least one non-ionic monomer unit M3, wherein the molar ratio of the cationic monomer units MC to the side chain-bearing monomer units M1 is equal to or less than 10, the molar ratio of the anionic monomer units MA to the side chain-bearing monomer units M1 is less than 1, preferably equal to or less than 0.5, and the molar ratio of the non-ionic monomer units M3 to the side chain-bearing monomer units M1 is less than 5.

SEQUENCED POLYMERS FOR MONITORING THE FILTRATE

La présente invention concerne l'utilisation d'un polymère séquencé comme agent de contrôle du filtrat dans un fluide injecté sous pression dans une roche pétrolière, où : le fluide comprend des particules solides et/ou est mis en contact avec des particules solides au sein de la roche pétrolière suite à son injection, le polymère comprenant au moins trois blocs, incluant : - au moins un premier bloc qui s'adsorbe, de préférence irréversiblement, sur au moins une partie des particules (p); et - au moins un deuxième bloc (B), de composition distincte de celle dudit premier bloc, et de masse moléculaire moyenne en poids supérieure à 10 000 g/mol et soluble dans le fluide (F). - au moins un troisième bloc de type (A) ou de type (B).

IMPROVED METHOD FOR PRODUCING COMB POLYMERS BY ADDING AN ANTIOXIDANT, RESULTING POLYMERS AND USES THEREOF

METHOD FOR PRODUCING ALLYL ETHER ESTER MONOMER AND CEMENT DISPERSANT

PURPOSE: To provide a method for producing a polyether ester monomer of high quality without using a solvent and to provide a cement dispersant comprising a graft copolymer obtained using as an intermediate raw material the polyether ester monomer of high quality produced by the method. CONSTITUTION: α-Allyl-ω-hydroxy-polyoxyalkylene, purified so that its peroxide value is 5.0 meq/kg or less, and an aliphatic monocarboxylic acid are subjected to an esterificaiton reaction under a specific condition where an antioxidant is caused to be present in the absence of a solvent to give an allyl ether ester monomer. The allyl ether ester monomer produced by the method is employed as an intermediate raw material for producing a graft copolymer and/or a salt thereof used as a cement dispersant. © KIPO & JPO 2004 ...

USE OF A (METH)ACRYLIC COMB POLYMER CONTAINIG (METH)ACRYLIC ESTER AS DISPERSING AGENT AND ANTI-DEFOAMING AGENT IN AN AQUEOUS SUSPENSION OF CALCIUM SULFATE HEMIHYDRATE

ROBUST POLYCARBOXYLATE CONTAINING ETHER LINKAGES FOR MILLING PREPARATION OF CEMENTITIOUS MATERIALS

The present invention discloses compositions and methods wherein polycarboxylate comb polymers are used as grinding additives. The comb polymers contain a carbon-containing backbone and pendant groups wherein oxyalkylene pendant groups contain one or more ether linkage groups for providing robustness to the polymer for resisting degradation during grinding and hence sustaining workability and strength of hydratable cementitious materials, such as cements, pozzolans, limestone, and other cementitious materials.

Use of comb polymers as a grinding agent for preparations containing cement

The present invention relates to the use of comb polymers which have a carbon backbone which bears polyether groups of the formula A *U(C(O))kX-(Alk-O)nWA wherein * indicates the binding site to the carbon backbone of the comb polymer, U stands for a chemical bond or an alkylene group with 1 to 8 C atoms, X means oxygen or a NR group, k is 0 or 1, n stands for a whole number, the mean value whereof, based on the comb polymer, lies in the range from 5 to 300, Alk stands for C2-C4 alkylene, where Alk within the group (Alk-O)n can be the same or different, W means a hydrogen, a C1-C6 alkyl residue or an aryl residue or means the group YZ, Y stands for a linear or branched alkylene group with 2 to 8 C atoms, which may bear a phenyl ring, Z stands for a 5- to 10-membered nitrogen heterocycle bound via nitrogen, which can have as ring members, as well as the nitrogen atom and as well as carbon atoms, 1, 2 or 3 additional hetero atoms, selected from oxygen, nitrogen and sulfur, wherein the nitrogen ...

ПРИМЕНЕНИЕ КОМБИНАЦИИ ГРЕБНЕОБРАЗНЫХ ПОЛИМЕРОВ В КАЧЕСТВЕ ДОБАВКИ, УЛУЧШАЮЩЕЙ ПРИГОДНОСТЬ ДЛЯ ОБРАБОТКИ ВОДНОГО СОСТАВА НА ОСНОВЕ ГИДРАВЛИЧЕСКИХ ВЯЖУЩИХ

... 1. Применение в качестве добавки, улучшающей пригодность для обработки водного состава на основе гидравлических вяжущих:а) по меньшей мере одного гребнеобразного (мет)акрилового сополимера, содержащего по меньшей мере одну боковую цепь, несущую по меньшей мере одну гидрофильную алкоксигруппу или гидроксильную группу полиалкиленгликоля,б) по меньшей мере одного гребнеобразного (мет)акрилового сополимера, содержащего по меньшей мере одну боковую цепь, несущую по меньшей мере одну гидрофобную группу.2. Применение по п.1, отличающееся тем, что указанный гребнеобразный сополимер а) и указанный гребнеобразный сополимер б) вводят в указанный водный состав по отдельности.3. Применение по п.1, отличающееся тем, что указанный гребнеобразный сополимер а) и указанный гребнеобразный сополимер б) вводят в форме смеси.4. Применение по п.3, отличающееся тем, что смесь имеет содержание сухого вещества, находящееся в интервале от 20% до 40% от ее общей массы.5. Применение по одному из пп.3 или 4, отличающееся ...

КОМПОЗИЦИЯ И СПОСОБ ПОЛУЧЕНИЯ СИЛИКАТНОГО КИРПИЧА

... 1. Композиция для получения силикатного кирпича, содержащая известь, песок, воду и по меньшей мере один пластификатор.2. Композиция по п.1, отличающаяся тем, что по меньшей мере один пластификатор представляет собой гребенчатый полимер КР, имеющий боковые цепи, связанные с основной цепью посредством сложноэфирных групп или эфирных групп.3. Композиция по п.2, отличающаяся тем, что гребенчатый полимер КР является сополимером по формуле (I):где М независимо друг от друга являются Н, ионом щелочного металла, ионом щелочноземельного металла, ионом двух- или трехвалентного металла, ионом аммония или органической аммониевой группой,каждый R независимо от других R в формуле (I) является водородом или метильной группой,Rнезависимо друг от друга являются -[AO]-R,Rнезависимо друг от друга являются C-Cалкильной группой, циклоалкильной группой, алкиларильной группой или -[AO]-R,А являются С-Салкиленовой группой, и Rявляются C-Cалкильной группой, циклогексильной группой или алкиларильной группой,и q= ...

ПРИМЕНЕНИЕ ГРЕБЕНЧАТЫХ ПОЛИМЕРОВ ДЛЯ РЕГУЛИРОВАНИЯ РЕОЛОГИЧЕСКИХ СВОЙСТВ КОМПОЗИЦИЙ МИНЕРАЛЬНОГО ВЯЖУЩЕГО ВЕЩЕСТВА

Изобретение относится к составу гребенчатого полимера, который используют для увеличения скорости потока и/или для уменьшения вязкости композиции минерального вяжущего вещества, где гребенчатый полимер содержит основную цепь, содержащую кислотные группы, и боковые цепи, присоединенные к основной цепи, причем среднечисленная молекулярная масса (Μ) всех боковых цепей составляет от 120 до 1000 г/моль и молярное отношение кислотных групп к боковым цепям составляет от 0,8 до 1,6. Причем боковые цепи не содержат алкиленоксиды с тремя и более атомами водорода. Изобретение также относится к самоуплотняющемуся бетону и к формованному изделию, полученному путем отверждения самоуплотняющегося бетона, в составе которого содержится вышеуказанный гребенчатый полимер. Изобретение развито в зависимых пунктах формулы изобретения. 3 н. и 13 з.п. ф-лы, 1 табл.

PROCEDURE FOR THE PRODUCTION OF A PANEL FROM MINERAL FIBRES.

Controllable high flow concrete

The present invention relates to very high workable yet controllable concrete mix design, admixture composition, and process for placing concrete. The mix design relates to particular aggregate/cement ratios and types which are characteristic of ready mix concrete (RMC), which provide high fluidity reminiscent of self-consolidating concrete (SCC), and which provides advantages over both RMC and SCC in terms of ease and speed in placement and finishability at the construction site placement zone, regardless of whether into a horizontal formwork (e.g., for slabs, floors) or into vertical formwork (e.g., for blocks, walls, columns, etc.), without loss of control and without generating high risks of segregation even when small amounts of water are added at the size to facilitate finishing of the concrete surface. An inventive admixture combination which enables this unique design involves two different polycarboxylate comb polymers in combination with two specific viscosity modifying agents ...

STABLE AQUEOUS POLYMERIC SUPERPLASTICIZER SOLUTIONS AND CONCRETE COMPOSITIONS CONTAINING THE SAME

Aqueous superplasticizer solutions for concrete compositions include a polymeric superplasticizer and an air-detraining effective amount of a block polyether containing ethylene oxide and propylene oxide units.

RADIATION-INDUCED THICKENING FOR SET-ON-COMMAND SEALANT COMPOSITIONS AND METHODS OF USE

The present invention includes methods relating to the setting of fluids or slurries in a wellbore. In one embodiment, a method of isolating a portion of a wellbore by preparing a sealant composition comprising a fluid component and a polymeric additive component, placing the sealant composition into a wellbore and subjecting the sealant composition to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive components and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition. The present invention also includes compositions relating to the setting of fluids or slurries in a wellbore. In one embodiment, a sealant composition having a fluid component and a polymeric additive component can be subjected to ionizing radiation.

WATER-REDUCING MIXTURE FOR A HYDRAULIC BINDER COMPOSITION

La présente invention a pour objet une composition hydraulique comprenant : au moins un liant hydraulique; au moins un premier additif réducteur d'eau comprenant au moins un groupement amino-alkylène phosphonique; au moins un second additif réducteur d'eau comprenant au moins un polymère à structure peigne, la concentration en poids d'extrait sec du second additif étant comprise de 25 % à 100 % de la concentration en poids d'extrait sec du premier additif. Un béton comprenant une telle composition hydraulique et un mélange fluidifiant pour une telle composition hydraulique sont deux autres objets de la présente invention.

USE OF A COMB POLYMER COMBINATION AS AN AGENT FOR IMPROVING THE HANDLING OF AN AQUEOUS HYDRAULIC BINDER FORMATION

La présente invention concerne l'utilisation, dans la fabrication d'une formulation aqueuse à base de liants hydrauliques, de combinaison entre au moins un copolymère peignes disposant d'un squelette (méth)acrylique, sur lequel sont greffées des chaînes latérales terminées par un groupement hydrophile, et au moins un copolymère peignes disposant d'un squelette (méth)acrylique, sur lequel sont greffées des chaînes latérales terminées par un groupement hydrophobe. On parvient à améliorer la maniabilité de ladite formulation, sans provoquer de phénomène de ségrégation.

RETARDER FOR SULFO-ALUMINOUS CEMENT

DISPERSING POLYMERS HAS THERMAL STABILITY AMELIOREE

L'invention vise principalement un polymère comprenant une chaîne principale hydrocarbonée portant des groupes carboxyliques et des chaînes polyalcoxylés et jusqu'à 5% en poids de groupements anti-oxydants par rapport au poids du polymère final greffés à la chaîne principale. Elle vise également un procédé de préparation d'un tel polymère ainsi qu'un adjuvant utile à titre de dispersant de suspensions de particules minérales le comprenant. Enfin, elle vise l'utilisation d'un tel polymère pour fluidifier des suspensions de particules minérales et réduire la demande en eau de compositions hydrauliques.

Robust polycarboxylate containing ether linkages for milling preparation of cementitious materials

... 본 발명은 폴리카복실레이트 빗형 중합체가 분쇄 첨가제로서 사용된 조성물 및 방법을 개시한다. 상기 빗형 중합체는 탄소-함유 주쇄 및 현수 기를 함유하며, 상기 옥시알킬렌 현수 기는 분쇄하는 동안 분해를 견디기 위하여 중합체에 강인성을 제공하기 위한 1 이상의 에테르 결합기를 함유하므로 시멘트, 포졸란, 석회, 및 기타 시멘트질 재료와 같은 수화성 시멘트질 재료의 작업성 및 강도를 유지한다.

Polìmero solúvel em água de ésteres obtidos de ácido acrìlico e alquilpolialquileno glicõis, e, uso dos mesmos

USE OF COMB POLYMERS AS A GRINDING AGENT FOR PREPARATIONS CONTAINING CEMENT

The invention relates to the use of comb polymers which comprise a carbon backbone comprising polyether groups of formula A *-U-(C(O))k-X-(Alk-O)n-W A wherein * is the binding point on the carbon backbone of the comb polymer, U represents a chemical binding or an alkylene group having 1 - 8 C-atoms, X represents oxygen or a group NR, k is 0 or 1, n represents a whole number, wherein the average, in relation to the comb polymer, lies in the region of between 5 - 300, Alk represents C2-C4-alkylene, Alk in the group (Alk-O)n can be identical or different, W represents hydrogen, a C1-C6-alkyl- or a aryl radical or the group Y-Z, Y represents a linear or cross-linked alkylene group having 2 - 8 C-atoms and which can support a phenyl ring, Z represents a 5 10-membered nitrogen heterocycle which is linked by nitrogen, and the ring members, in addition to nitrogen atoms and carbon atoms, are 1, 2 or 3 additional heteroatoms which are selected from oxygen, nitrogen and sulphur, whereby the nitrogen ...

Cementing compositions including a dispersant agent for cementing operation in oil wells

The invention concerns a cementing composition for cold zones cementing operations in an oil well or analogous, said composition comprising a aqueous fluid base, solid particles including cement particles, and a dispersing agent in solution in the aqueous fluid base, said dispersing agent having a comb-like structure composed of a graft copolymer, said graft copolymer being constituted by a backbone carrying grafted chains.

Water-soluble polyurethane having comb-shaped hydrophobic group and application thereof

Water-soluble polyurethane according to the present invention is obtained from polyalkylene glycols, diisocyanates, and comb-shaped hydrophobic diols represented by the following general formula (3):wherein each of R<1>, R<2 >and R<3 >is a hydrocarbon group; each of Y and Y' is hydrogen, a methyl group or a CH2Cl group; each of Z and Z' is oxygen, sulfur or a CH2 group; n is an integer of 0 to 15 when Z is oxygen and is 0 when Z is sulfur or a CH2 group; n' is an integer of 0 to 15 when Z' is oxygen and is 0 when Z' is sulfur or a CH2 group. The water-soluble polyurethane is used as, for example, an extruding auxiliary for cement materials, a mortar thickening agent, an underwater concrete thickening agent, a ceramics forming binder and a moisturizer for hair cosmetics, all of which are characterized by excellent water retention and high shape retention.

COMB POLYMERS AS BLOCKING ADDITIVES FOR SWELLING CLAYS

A comb polymer, in particular for use as a clay-inerting agent, including: a) at least one poly(alkylene oxide) side chain-bearing monomer unit M1 without ionic groups, b) optionally at least one cationic monomer unit MC, c) optionally at least one anionic monomer unit MA, d) optionally, at least one non-ionic monomer unit M3, wherein the molar ratio of the cationic monomer units MC to the side chain-bearing monomer units M1 is equal to or less than 10, the molar ratio of the anionic monomer units MA to the side chain-bearing monomer units M1 is less than 1, preferably equal to or less than 0.5, and the molar ratio of the non-ionic monomer units M3 to the side chain-bearing monomer units M1 is less than 5. 6. A comb polymer according to claim 1 , wherein the comb polymer claim 1 , with respect to the total number of monomer units present in the comb polymer claim 1 , comprises:{'sup': '1', 'a) 95-100 mol-%, of the at least one poly(alkylene oxide) side chain-bearing monomer unit M,'}b) 0-1 mol-%, of the at least one cationic monomer unit MC,c) 0-1 mol-%, of the at least one anionic monomer unit MA,d) 0-1 mol-%, of the at least one non-ionic monomer unit M3.7. A comb polymer according to claim 1 , wherein the comb polymer claim 1 , with respect to the total number of monomer units present in the comb polymer claim 1 , comprises:{'sup': '1', 'a) 30-70 mol-%, of of the at least one poly(alkylene oxide) side chain-bearing monomer unit M, and b) 0-1 mol-%, of the at least one cationic monomer unit MC,'}c) 0-1 mol-%, of the at least one anionic monomer unit MA,d) 30-70%, of the at least one non-ionic monomer unit M3.8. A comb polymer according to claim 1 , wherein the comb polymer claim 1 , with respect to the total number of monomer units present in the comb polymer claim 1 , comprises:{'sup': '1', 'a) 10-99 mol-%, of the at least one poly(alkylene oxide) side chain-bearing monomer unit M, and'}b) 1-90 mol-%, of the at least one cationic monomer unit MC,c) 0-1 mol-%, of ...

Statistic comb polymers, method for producing the same and their use

Statistic comb polymers obtainable by the radical copolymerization of a vinylic poly(alkylenoxide) compound (A) with an ethylenically unsaturated monomer compound (B) according to the catalytic chain transfer method (CCT). The comb polymers are extremely suitable for hydraulic binder suspensions based on cement, lime, gypsum and anhydrite as they have, for the same dosage, an improved water reducing power over conventional flow agents. The corresponding building material mixtures are characterized by a substantially reduced stickiness and plastic viscosity once said comb polymers are added, which dramatically improves the plasticity of very cement-rich building material mixtures, such as concretes. The building material mixtures using the inventive flow agents have a considerably increased slump flow and an increased shear-thinning behavior as compared to conventional concretes without the tendency to segregate.

Gypsum composition

A gypsum composition comprising water, stucco, clay, an amine compound, a polyoxyalkylene, and a comb-branched copolymer is disclosed. The gypsum composition has improved fluidity. A method for preparing the gypsum composition is also disclosed. The method comprises mixing the components to form a slurry, casting the slurry into a product, and drying the product.

ДОБАВКА ДЛЯ СТРОИТЕЛЬНЫХ ХИМИЧЕСКИХ КОМПОЗИЦИЙ

Данное изобретение относится к добавке для строительных химических композиций, в особенности композиций строительного раствора и цементных композиций. Добавка включает по меньшей мере один амид или сложный эфир сахарной кислоты и по меньшей мере один водорастворимый гребенчатый полимер, который содержит на главной цепи кислотные функции и боковые цепи, имеющие функции простого эфира. Добавка является полезной для замедления твердения строительной химической композиции. Также описаны строительная химическая композиция и применение добавки для замедления твердения составов строительных смесей. 3 н. и 14 з.п. ф-лы, 2 ил., 4 табл.

КОМПОЗИЦИЯ И СПОСОБ ПОЛУЧЕНИЯ СИЛИКАТНОГО КИРПИЧА

Изобретение относится к композиции для получения силикатного кирпича. Композиция для получения силикатного кирпича, содержащая известь, песок, воду и по меньшей мере один пластификатор, где по меньшей мере один пластификатор представляет собой гребенчатый полимер КР по приведенной структурной формуле. Способ получения силикатного кирпича, включающий стадии обеспечения указанной выше композиции, подачи данной композиции по меньшей мере в одно прессующее устройство и ее прессования, отверждения композиции. Отвержденная композиция, полученная указанным выше способом. Применение указанной выше композиции. Изобретение развито в зависимых пунктах формулы. Технический результат - улучшение обрабатываемости композиции, повышение качества изделий. 4 н. и 4 з.п. ф-лы, 5 табл., 2 пр.

ПРИМЕНЕНИЕ ГРЕБЕНЧАТЫХ ПОЛИМЕРОВ ДЛЯ РЕГУЛИРОВАНИЯ РЕОЛОГИЧЕСКИХ СВОЙСТВ КОМПОЗИЦИЙ МИНЕРАЛЬНОГО ВЯЖУЩЕГО ВЕЩЕСТВА

Verwendung von wasserlöslichen Polymerisaten von Estern aus Acrylsäure und Alkylpolyalkylenglycolen als Mahlhilfsmittel für zementöse Systeme.

USE OF WATER-SOLUBLE POLYMERS OF ESTERS FROM ACRYLIC ACID AND ALKYLPOLYALKYLENGLYCOLEN AS MEAL AIDS FOR CEMENT EYE OF SYSTEMS.

THROUGH PUZZOLAN CEMENT AND COMPATIBLE-MAKING MIXTURES FOR IT REPLACED CEMENT COMPOSITION WITH HIGH PORTION ON

KAMMFÖRMIG BRANCHED OUT COPOLYMERS ON CELEBRATIONS CARRIERS AS ADDITIVES FOR GYPSUM COMPOSITIONS

PROCEDURE FOR THE PRODUCTION OF ALLYLETHERESTER ONES MONOMERS AND DISPERSING AGENTS FOR CEMENT

USE OF WÄSSERLÖSLICHEN POLYMERS OF ESTERS FROM ACRYLIC ACID, METHACRYLSÄURE AND ALKYLPOLYALKYLENGLYCOLEN AS ADDITIVE TO CEMENT EYES SYSTEMS

Composition and method for producing lime sand brick

The invention relates to a composition for producing lime sand brick comprising lime, sand, water and at least one plasticizer, in particular a comb polymer KP having side chains bound to the main chain via ester or ether groups. The invention further relates to a method for producing lime sand brick.

Robust polycarboxylate containing ether linkages for milling preparation of cementitious materials

The present invention discloses compositions and methods wherein polycarboxylate comb polymers are used as grinding additives. The comb polymers contain a carbon-containing backbone and pendant groups wherein oxyalkylene pendant groups contain one or more ether linkage groups for providing robustness to the polymer for resisting degradation during grinding and hence sustaining workability and strength of hydratable cementitious materials, such as cements, pozzolans, limestone, and other cementitious materials.

Dispersing polymers with improved thermal stability

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 antioxidant groups, relative to the weight of the final polymer, which are grafted to the main chain. It also relates to a process for preparing such a polymer and to an adjuvant which is of use as a dispersant of suspensions of mineral particles comprising same. Finally, it relates to the use of such a polymer for fluidifying suspensions of mineral particles and reducing the water demand of hydraulic compositions.

Use of comb polymers for controlling the rheology of mineral binder compositions

A comb polymer is used for increasing the flow rate and/or reducing the viscosity of a mineral binder composition, where the comb polymer has a main chain comprising acid groups and there are pendent chains linked to the main chain, and where the average number-average molar mass of all of the pendent chains is from 120 to 1000 g/mol and the molar ratio of the acid groups to the side chains is in the range from 0.5 to 2.

A CEMENTING COMPOSITION INCLUDING A DISPERSANT AGENT FOR CEMENTING OPERATION IN OIL WELLS

The invention concerns a cementing composition for cold zones cementing operations in an oil well or analogous, said composition comprising a aqueous fluid base, solid particles including cement particles, and a dispersing agent in solution in the aqueous fluid base, said dispersing agent having a comb- like structure composed of a graft copolymer, said graft copolymer being constituted by a backbone carrying grafted chains.

STABLE AQUEOUS POLYMERIC SUPERPLASTICIZER SOLUTIONS AND CONCRETE COMPOSITIONS CONTAINING THE SAME

Aqueous superplasticizer solutions for concrete compositions include a polymeric superplasticizer and an air-detraining effective amount of a block polyether containing ethylene oxide and propylene oxide units.

COMPOSITION CONTAINING A SEMI-ORDERED CALCIUM SILICATE HYDRATE

The invention relates to a hardening accelerator composition for construction chemical mixtures, comprising a mineral component and a polymeric water-soluble dispersing agent. The mineral component contains a semi-ordered calcium silicate hydrate having an apparent crystallite size of 15 nm or less and less than 35 wt. % of semi-ordered calcium silicate hydrate of different crystalline phases. The composition has a more pronounced acceleration action compared to reference compositions, wherein the mineral part comprises a calcium silicate hydrate with higher degree of crystallinity.

USE OF A COMB POLYMER COMBINATION AS AN AGENT FOR IMPROVING THE HANDLING OF AN AQUEOUS HYDRAULIC BINDER FORMATION

La présente invention concerne l'utilisation, dans la fabrication d'une formulation aqueuse à base de liants hydrauliques, de combinaison entre au moins un copolymère peignes disposant d'un squelette (méth)acrylique, sur lequel sont greffées des chaînes latérales terminées par un groupement hydrophile, et au moins un copolymère peignes disposant d'un squelette (méth)acrylique, sur lequel sont greffées des chaînes latérales terminées par un groupement hydrophobe. On parvient à améliorer la maniabilité de ladite formulation, sans provoquer de phénomène de ségrégation.

A BIODEGRADABLE SET RETARDER FOR A CEMENT COMPOSITION

Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, tumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition maintained under a temperature condition of 190 0F and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition maintained under a temperature condition of 217 °F and a pressure ...

DISPERSING POLYMERS WITH IMPROVED THERMAL STABILITY

L'invention vise principalement un polymère comprenant une chaîne principale hydrocarbonée portant des groupes carboxyliques et des chaînes polyalcoxylés et jusqu'à 4% en poids de groupements anti-oxydants par rapport au poids du polymère final greffés à la chaîne principale. Elle vise également un procédé de préparation d'un tel polymère ainsi qu'un adjuvant utile à titre de dispersant de suspensions de particules minérales le comprenant. Enfin, elle vise l'utilisation d'un tel polymère pour fluidifier des suspensions de particules minérales et réduire la demande en eau de compositions hydrauliques.

CONTINUOUS PROCESS AND ESTERIFICATION OR AMIDATION, WITHOUT ORGANIC SOLVENT, ACID HOMOPOLYMER OR COPOLYMER OF A

La présente invention concerne un procédé continu de préparation d'un polymère peigne, sans solvant organique, par estérification et/ou amidification d'un homopolymère ou copolymère acide, consistant à procéder à l'estérification et/ou l'amidification dudit homopolymère/copolymère par pétrissage à chaud dans la zone de mélange et de transport d'une extrudeuse, éventuellement équipée d'un système d'élimination de l'eau, en présence d'au moins un poly(alkylène glycol) sous forme solide ou à l'état fondu et d'un antioxydant, ladite estérification et/ou amidification ayant lieu à une température supérieure ou égale à 170°C.

BLOCK POLYMERS FOR MONITORING THE FILTRATE

La présente invention concerne l'utilisation d'un polymère séquencé comme agent de contrôle du filtrat dans un fluide injecté sous pression dans une roche pétrolière, où : le fluide comprend des particules solides et/ou est mis en contact avec des particules solides au sein de la roche pétrolière suite à son injection, le polymère comprenant au moins trois blocs, incluant : - au moins un premier bloc qui s'adsorbe, de préférence irréversiblement, sur au moins une partie des particules (p); et - au moins un deuxième bloc (B), de composition distincte de celle dudit premier bloc, et de masse moléculaire moyenne en poids supérieure à 10 000 g/mol et soluble dans le fluide (F). - au moins un troisième bloc de type (A) ou de type (B).

CONTINUOUS PROCESS FOR ESTERIFICATION AND AMIDATION OR, WITHOUT ORGANIC SOLVENT, OF A HOMOPOLYMER OR COPOLYMER ACID

Radiation-induced thickening for set-on-command sealant compositions and methods of use

The present invention includes methods relating to the setting of fluids or slurries in a wellbore. In one embodiment, a method of isolating a portion a wellbore by preparing a sealant composition comprising a fluid component and a polymeric additive component, placing the sealant composition into a wellbore and subjecting the sealant composition to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive components and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition.

USE OF A COMB POLYMER COMBINATION AS AN AGENT FOR IMPROVING THE HANDLING OF AN AQUEOUS HYDRAULIC BINDER FORMATION

Method of producing allyletherester monomers and cement dispersants

ДОБАВКА ДЛЯ ГИДРАВЛИЧЕСКОЙ КОМПОЗИЦИИ

Изобретение относится к добавке для гидравлической композиции и к смеси для приготовления добавки для гидравлической композиции. Добавка для гидравлической композиции подавляет почернение, возникающее в результате присутствия окрашенных мелкодисперсных частиц, и подавляет замедление схватывания, выступание воды на поверхности бетона и уменьшение начальной прочности, в дополнение к этому, демонстрирует превосходную способность уменьшения водопотребности. Добавка для гидравлической композиции содержит продукт поликонденсации P, содержащий сополимер, полученный посредством поликонденсации мономерной смеси, содержащей соединения A – C следующих далее Формул (A) – (C), и полимер Q на основе поликарбоновой кислоты, содержащий структурное звено, содержащее аминогруппу и иминогруппу, и/или структурное звено, содержащее аминогруппу, иминогруппу и амидогруппу:(где R1представляет собой атом водорода, алкильную группу или алкенильную группу; A1O представляет собой C2–4алкиленоксидную группу; p представляет ...

РАЗЖИЖАЮЩАЯ СМЕСЬ ДЛЯ КОМПОЗИЦИИ С ОСНОВОЙ ИЗ ГИДРАВЛИЧЕСКОГО ВЯЖУЩЕГО

Настоящее изобретение относится к гидравлической композиции, включающей: по меньшей мере одно гидравлическое вяжущее, по меньшей мере одну первую пластифицирующую добавку, включающую по меньшей мере одну фосфоновую амино-алкиленовую группу, по меньшей мере одну вторую пластифицирующую добавку, включающую по меньшей мере один полимер с гребенчатой структурой, причем концентрация по массе сухого остатка второй добавки составляет от 25% до 100% от концентрации по массе сухого остатка первой добавки. Изобретение также относится к бетону, включающему указанную гидравлическую композицию, и к составу разжижающей смеси для указанной гидравлической композиции. Изобретение развито в зависимых пунктах формулы изобретения. Технический результат - пониженная вязкость композиции с основой из гидравлического вяжущего в течение времени обрабатываемости композиции. 3 н. и 7 з.п. ф-лы, 6 табл., 2 ил.

ПРИМЕНЕНИЕ ГРЕБЕНЧАТЫХ ПОЛИМЕРОВ ДЛЯ РЕГУЛИРОВАНИЯ РЕОЛОГИЧЕСКИХ СВОЙСТВ КОМПОЗИЦИЙ МИНЕРАЛЬНОГО ВЯЖУЩЕГО ВЕЩЕСТВА

Изобретение относится к составу гребенчатого полимера, который используют для увеличения скорости потока и/или для уменьшения вязкости композиции минерального вяжущего вещества, где гребенчатый полимер содержит основную цепь, содержащую кислотные группы, и боковые цепи, присоединенные к основной цепи, причем среднечисленная молекулярная масса (Μ) всех боковых цепей составляет от 120 до 1000 г/моль и молярное отношение кислотных групп к боковым цепям составляет от 0,8 до 1,6. Причем боковые цепи не содержат алкиленоксиды с тремя и более атомами водорода. Изобретение также относится к самоуплотняющемуся бетону и к формованному изделию, полученному путем отверждения самоуплотняющегося бетона, в составе которого содержится вышеуказанный гребенчатый полимер. Изобретение развито в зависимых пунктах формулы изобретения. 3 н. и 13 з.п. ф-лы, 1 табл.

ЭКСТРУДАТЫ НЕОРГАНИЧЕСКИХ ОКСИДОВ

... 1. Экструдат, содержащий диоксид титана и гребнеобразный полимер, отличающийся тем, что количество диоксида титана составляет не менее 10 мас.%, а количество гребнеобразного полимера составляет не менее 1 мас.% от массы экструдата. ! 2. Экструдат по п.1, отличающийся тем, что гребнеобразный полимер содержит повторяющиеся группы этиленового карбоксилсодержащего мономера и простого полиэфирного макромономера. ! 3. Экструдат по п.2, отличающийся тем, что этиленовым карбоксилсодержащим мономером является акриловый мономер. ! 4. Экструдат по п.2, отличающийся тем, что этиленовый карбоксилсодержащий мономер выбран из группы, которую составляют акриловая кислота, метакриловая кислота и их смеси. ! 5. Прокаленный экструдат по п.1. ! 6. Прокаленный экструдат по п.5, отличающийся тем, что прокаливание выполнено в присутствии кислородсодержащего газа. ! 7. Прокаленный экструдат по п.6, отличающийся тем, что прокаливание выполнено при температуре от 450 до 700°С. ! 8. Способ получения винилацетата, ...

VERFAHREN ZUR HERSTELLUNG EINES PANEELS AUS MINERALFASERN.

ZEMENTZUSAMMENSETZUNG MIT HOHEM ANTEIL AN DURCH PUZZOLAN ERSETZTEN ZEMENT UND VERTRÄGLICHMACHENDE GEMISCHE DAFÜR

Sequenced polymers for monitoring the filtrate

The present invention relates to the use of a sequenced polymer as an agent for monitoring the filtrate in a fluid injected under pressure into an oil rock, wherein the fluid comprises solid particles and/or is brought into contact with solid particles within the oil rock after being injected, the polymer comprising at least three blocks, including: at least one first block which is adsorbed, preferably irreversibly, onto at least some of the particles (p); a second block (B) having a composition other than that of the first and a mean molecular weight of more than 10,000 g/mol, and which is soluble in the fluid (F); and at least one third block of type (A) or type (B).

Polyelectrolyte-layer forming block copolymers and compositions and used thereof

The present invention relates generally to polyelectrolyte-layer forming block copolymers adsorbed at colloid interfaces in aqua solution and compositions and uses thereof. In particular, the present invention relates to agricultural material compositions comprising particles of at least one agricultural material and a polyelectrolyte-layer forming block copolymer. The present invention also relates to non-agricultural material compositions comprising particles of at least one non-agricultural material and a polyelectrolyte-layer forming block co-polymer.

Accelerator composition

The invention relates to compositions comprising inorganic compounds selected from calcium silicate hydrate (C-S-H), ettringite or AFm phases and a copolymer comprising thiovinyl ether polyether macromonomers and anionic monomers, the weight ratio of copolymer to calcium being from 1/20 to 20/1. In addition it relates to methods for producing the compositions and construction material mixtures comprising the compositions.

Multi-functional cement dispersants and hydraulic cement compositions

Particles attached to first and second polymers having mutual non-covalently associative groups

USE OF COMB POLYMERS FOR CONTROLLING THE RHEOLOGY OF MINERAL BINDER COMPOSITIONS

A comb polymer is used for increasing the flow rate and/or reducing the viscosity of a mineral binder composition, where the comb polymer has a main chain comprising acid groups and there are pendent chains linked to the main chain, and where the average number-average molar mass of all of the pendent chains is from 120 to 1000 g/mol and the molar ratio of the acid groups to the side chains is in the range from 0.5 to 2.

A BIODEGRADABLE SET RETARDER FOR A CEMENT COMPOSITION

Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, tumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition maintained under a temperature condition of 190 0F and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition maintained under a temperature condition of 217 °F and a pressure ...

SOLID SUPPORTED COMB-BRANCHED COPOLYMERS AS AN ADDITIVE FOR GYPSUM COMPOSITIONS

... ²²²A gypsum composition suitable for use in the manufacture of gypsum products is ²provided. The gypsum composition includes gypsum, water, and a solid ²dispersant comprising a supported acrylic/polyether comb-branched copolymer. A ²method of making a gypsum composition is also provided. The method includes ²mixing together, in any combination, gypsum, water, and a solid dispersant ²comprising a supported acrylic/polyether comb-branched copolymer.² ...

INORGANIC OXIDE EXTRUDATES

An extrudate comprising an inorganic oxide and a comb-branched polymer is disclosed. The calcined extrudates are useful catalysts or catalyst supports. A palladium-gold catalyst prepared with a calcined titania extrudate of the invention is useful in making vinyl acetate from ethylene, acetic acid, and oxygen or oxygen-containing gas. A calcined transition metal zeolite extrudate of the invention is used as a catalyst in oxidizing organic compounds with hydrogen peroxide. Incorporation of a comb-branched polymer improves the mechanical properties of inorganic oxide extrudates.

IMPROVED METHOD FOR PRODUCING COMB POLYMERS BY ADDING AN ANTIOXIDANT, RESULTING POLYMERS AND USES THEREOF

L'invention réside dans la mise en oeuvre d'un antioxydant au cours de la réaction de fonctionnalisation d'un polymère (méth)acrylique à l'état sec par des groupements latéraux polyoxyalkylés, de manière à améliorer le taux de greffage du polymère final. Les polymères obtenus constituent un autre objet de l'invention, de même que les formulations aqueuses qui les contiennent.

MIX FLUXING FOR COMPOSITION CONTAINING A HYDRAULIC BINDER

DISPERSING POLYMERS WITH IMPROVED THERMAL STABILITY

향상된 열적 안정성을 갖는 분산제 폴리머

... 본 발명은 주로 카르복실기 및 폴리알콕실화 사슬을 함유하는 탄화수소-기반 주쇄 및 최종 폴리머의 중량에 대하여 최대 4 중량%의, 상기 주쇄에 그래프팅된, 산화방지기를 포함하는 폴리머에 관한 것이다. 또한, 본 발명은 상기 폴리머를 제조하는 방법 및 이를 포함하는 미네랄 입자의 현탁액의 가소제로서 사용되는 혼화제에 관한 것이다. 마지막으로, 본 발명은 미네랄 입자의 현탁액을 유동화하고 수경성 조성물의 물 수요를 감소시키는 그러한 폴리머의 용도에 관한 것이다.

USE OF COMB POLYMERS AS A GRINDING AGENT FOR PREPARATIONS CONTAINING CEMENT

The invention relates to the use of comb polymers which comprise a carbon backbone comprising polyether groups of formula A *-U-(C(O))k-X-(Alk-O)n-W A wherein * is the binding point on the carbon backbone of the comb polymer, U represents a chemical binding or an alkylene group having 1-8 C-atoms, X represents oxygen or a group NR, k is 0 or 1, n represents a whole number, wherein the average, in relation to the comb polymer, lies in the region of between 5-300, Alk represents C2-C4-alkylene, Alk in the group (Alk-O)n can be identical or different, W represents hydrogen, a C1-C6-alkyl-or a aryl radical or the group Y-Z, Y represents a linear or cross-linked alkylene group having 2-8 C-atoms and which can support a phenyl ring, Z represents a 5 10-membered nitrogen heterocycle which is linked by nitrogen, and the ring members, in addition to nitrogen atoms and carbon atoms, are 1, 2 or 3 additional heteroatoms which are selected from oxygen, nitrogen and sulphur, whereby the nitrogen ring ...

utilização de uma combinação de copolímeros (met) acrílicos pentes e formulação aquosa à base de ligantes hidráulicos.

Method for Controlling Clay Impurities in Construction Aggregates and Cementitious Compositions

The present invention provides a method for treating clay-bearing aggregates, particularly those used for construction purposes, which involve introducing to clay-bearing aggregates an ion-exchanged polycondensate of dialkylamine and epichlorohydrin having anionic groups comprising both acetate and chloride ionic groups, wherein the acetate is present in an amount of 51-99 percent, and more preferably in the amount of 60-95 percent, based on molar concentration of the anionic groups, whereby chloride ionic groups are minimally present.

ЭКСТРУДАТЫ НЕОРГАНИЧЕСКИХ ОКСИДОВ

Настоящее изобретение относится к экструдатам неорганических оксидов, применяемых в качестве катализаторов или носителей катализаторов. Описан экструдат, содержащий диоксид титана и гребнеобразный полимер, полученный путем сополимеризации этиленового карбоксилсодержащего мономера с простым полиэфирным макромономером, в том числе акрилатами и метакрилатами сополимера оксиэтилена и оксипропилена, причем экструдат включает основную полимерную цепь, карбоксилсодержащую боковую цепь и боковую цепь, содержащую простой полиэфир, в том числе сополимер оксипропилена с оксиэтиленом, при этом количество диоксида титана составляет не менее 10% (мас.), а количество гребнеобразного полимера составляет не менее 1% (мас.) от массы экструдата. Описан также прокаленный указанный выше экструдат. Технический эффект - улучшение механических свойств экструдатов. 2 н. и 5 з.п. ф-лы, 4 табл., 21 пр.

Porogen Containing Calcium Phosphate Cement Compositions

Porogen containing calcium phosphate cement compositions are provided. Aspects of the cement compositions include a dry calcium phosphate reactant component, a setting fluid component and a porogen component. The porogen component includes at least first and second porogens having different pore forming profiles. Aspects of the invention include combining the cement components to produce a settable composition. Aspects of the invention further include the settable compositions themselves as well as kits for preparing the same. Methods and compositions as described herein find use in a variety of applications, including hard tissue repair applications.

Weighted Elastomers, Cement Compositions Comprising Weighted Elastomers, and Methods of Use

Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method of cementing that comprises providing a cement composition containing cement, water, and a weighted elastomer. In addition, the cement composition may be introduced into a subterranean formation and allowed to set therein.

Rock sheet and plate mix based on volcanic rock particles useful for building and decoration and its manufacturing processes

The present invention relates to a mix to manufacture a rock sheet on a solid base useful for decorating purposes. The mix includes a binding composition of an agglutinating agent comprising volcanic rock particles having a particle size of 1 to 5 microns and a polymer mixture in a combined amount sufficient to act as a binder for other components of the laminate; a silicate compound in an amount sufficient to stabilize the composition; and water in an amount to moisten and fluidize the composition. The mix can contain other components for forming laminates or shapes, and can be formed as or on a plate useful for building and decorating buildings made-up by a rock sheet manufactured with the aforementioned mix and a solid base. The methods for preparing the aforementioned mix and plates useful for the construction and decoration of construction surfaces are also disclosed.

Low Viscosity Synthetic Cement

The present invention relates to a synthetic cement that comprises a low viscosity monofunctional monomer, a dicyclopentadienyl moiety having a pendant free radical reactive species, 1,3-butyleneglycol dimethacrylate, unsaturated styrenic block copolymer, and a peroxide curing agent. Additionally it may include weighting agents depending on the circumstances of the well, as is well known to those skilled in the art. Other additional components such as oil based mud, suspending agents, Portland cement, acrylates and methacrylates, retardant curing additives, and clays may optionally be incorporated into the synthetic cement. The synthetic cement is activated by heat, for example, and can be crafted to set within a certain time frame, for example in 4 hours, so that it pumpable for as long as need be, and then be set to seal the well in the manner desired.

Lightweight Wall Repair Compounds

Herein are disclosed wall repair compounds comprising at least one or more polymeric binder latex emulsions, one or more inorganic fillers, and comprising an amount of organic polymeric thickener that is less than about 0.1 percent by weight based on the total weight of the wall repair compound. In certain embodiments, the wall repair compound comprises an inorganic filler system selected such that such that synthetic inorganic fillers comprise essentially 100 percent of the inorganic filler used. In certain embodiments, the wall repair compound comprises one or more glycol ether smoothing agents.

Self priming spackling compound

A self-priming spackling compound includes between about 35% by weight and about 65% by weight acrylic latex resin, between about 20% by weight and about 50% by weight filler material, and between about 1% by weight and about 20% by weight water. In certain aspects, the latex resin may have an average latex particle size of less than about 0.18 microns, a minimum film formation temperature of less than about 15 degrees Celsius, and/or a glass transition temperature (Tg) of less than about 25 degrees Celsius. To further enhance the self-priming performance of the spackling compound, the formulation may further comprise a colorant such as titanium dioxide.

FLUIDIZING MIX FOR A COMPOSITION WITH A BASE OF HYDRAULIC BINDER

The present invention relates to a hydraulic composition comprising: 114.-. (canceled)15. A method to reduce the setting start time of a hydraulic composition comprising at least one hydraulic binder and at least one first water-reducing additive comprising at least one phosphonic amino-alkylene group , the method comprising adding at least one second water-reducing additive comprising at least one polycarboxylate of polyoxyalkylene of methacrylic acid with a comb structure to the hydraulic composition and the concentration by weight of dry extract of the second water-reducing additive being in a range from 30% to 95% of the concentration by weight of dry extract of the first water-reducing additive.16. The method according to claim 15 , wherein the concentration by weight of dry extract of the second water-reducing additive is in a range from 30% to 90% of the concentration by weight of dry extract of the first water-reducing additive.17. The method according to claim 15 , wherein the concentration by weight of dry extract of the second water-reducing additive is in a range from 40% to 90% of the concentration by weight of dry extract of the first water-reducing additive.20. The method according to claim 15 , wherein the concentration of the second water-reducing additive relative to the first water-reducing additive is such that a dosage of a mixture of said first and second water-reducing additives in said hydraulic composition to obtain an initial spread or slump is less than a dosage of only said first water-reducing additive in said hydraulic composition that is used to obtain said initial spread or slump.21. The method according to claim 20 , wherein a setting start time of said hydraulic composition is less than 50% of that obtained with said dosage of only said first water-reducing additive in said hydraulic composition.22. The method according to claim 20 , wherein said dosage of the mixture is less than 50% of said dosage of only said first water-reducing ...

CERAMIC BINDER COMPOSITION FOR CERAMIC COATED SEPARATOR FOR LITHIUM ION BATTERIES, METHODS OF PRODUCING SAME, AND USES THEREOF

A ceramic binder composition is disclosed as well as a method of making and using the same. Additionally, a ceramic coated separator used in, for example but without limitation, lithium ion batteries is disclosed. 1. A ceramic binder composition , comprising:at least one ceramic particle; anda binder comprising a polymer at least partially crosslinked with a crosslinking agent, wherein the polymer is a copolymer produced from monomers comprising (i) vinylpyrrolidone and (ii) at least one monomer having a functionality selected from the group consisting of an amine, an epoxide, and combinations thereof.2. The composition of claim 1 , wherein the at least one ceramic particle is selected from the group consisting of alumina claim 1 , alumina oxide hydroxide claim 1 , SiO claim 1 , BaSO claim 1 , TiO claim 1 , SnO claim 1 , CeO claim 1 , ZrO claim 1 , BaTiO claim 1 , YO claim 1 , BO claim 1 , and combinations thereof.35.-. (canceled)6. The composition of claim 1 , wherein the polymer is a copolymer produced from monomers comprising vinylpyrrolidone and at least one monomer having at least one amine functional group.7. The composition of claim 6 , wherein the polymer is selected from the group consisting of (a) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminopropyl methacrylamide (DMAPMA) claim 6 , (b) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminoethyl methacrylate (DMAEMA) claim 6 , (c) a copolymer produced from monomers comprising vinylpyrrolidone claim 6 , vinylcaprolactam claim 6 , and DMAEMA claim 6 , (d) a copolymer produced from monomers comprising vinylpyrrolidone claim 6 , vinylcaprolactam claim 6 , and DMAPMA claim 6 , and (e) combinations thereof.811-. (canceled)12. The composition of claim 6 , wherein the crosslinking agent comprises a compound comprising at least two epoxide groups.13. The composition of claim 12 , wherein the crosslinking agent comprises at least one water dispersible multi ...

Calcium sulfate composition comprising an additive

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.

Polyphosphoric acid resistant hydrogen sulfide scavenger for use in asphalt applications

A method and composition for reducing hydrogen sulfide generated or emitted from an asphalt composition are disclosed. In certain aspects, a method for reducing hydrogen sulfide emissions from an asphalt composition is provided wherein an additive is mixed with the asphalt composition and the additive is a copper-based complex. The asphalt composition can include asphalt and an asphalt modifying acid. The copper-based complex can comprise copper carboxylate. The copper carboxylate can be an oil-soluble metal organic.

METHOD FOR CREATING A MINERAL TRIOXIDE AGGREGATE MATERIAL WITH IMPROVED BIOLOGICAL EFFECTS

A dental device is improved in its ability to produce hydroxyl apatite by having a layer of mineral trioxide aggregate (MTA) deposited thereon. A tile of MTA is prepared, heat treated and sintered to produce a micronized tile of MTA that can then be deposited by physical vapor depositions, hot isostatic pressing, molding or other conventional technique. 1. An implantable dental device comprising a layer of mineral trioxide aggregate that produces hydroxyl apatite in the presence of phosphate buffered saline.2. An implantable dental device as in wherein said device is an obturation point.3. An implantable device as in wherein said obturation point comprises gutta-percha.4. A method for producing hydroxyl apatite on a dental device comprising the step of preparing a tile of mineral trioxide aggregate.5. A method as in further comprising forming a mixture by mixing Portland cement and deionized water in an amount of from about 10:1 to about 1:10.6. A method as in wherein said mixture is placed into a mold and cured in a humidity chamber.7. A method as in wherein said humidity chamber is set at 36 degrees Celsius with about a 90 percent relative humidity for from about 5 hours to about 10 days.8. A method as in wherein said cured mixture is subjected to a second heating by heating to from about 50 to about 500 degrees Celsius for from about 15 minutes to about 2 days.9. A method as in wherein said method includes micronizing said cured tile.10. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of from about 1 to about 200 microns.11. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of from about 10 to about 100 microns.12. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of about 53 microns.13. A method as in wherein said micronized tile is sintered at a temperature of from about 25 to about 400 degrees Celsius for a period of ...

Reaction Resin Composition, Multi-Component System and Use Thereof

Disclosed is a reaction resin composition comprising: a radically polymerizable compound; an initiator system having an a-halo carboxylic acid ester and a catalyst system containing a copper (II) salt, a reducing agent and at least one ligand containing nitrogen; a hydraulically curing compound; and water. Also disclosed is a two- or multi-component system containing said reaction resin composition and uses of said composition for construction applications. 120-. (canceled)21. Reaction resin composition havingA radically polymerizable compound, An α-halocarboxylic acid ester and', A copper(II) salt', 'A reducing agent and', 'At least one nitrogen-containing ligand, 'A catalyst system, which comprises'}], 'An initiator system, which contains'}A hydraulically curing and/or polycondensable compound andWater.22. Reaction resin composition according to claim 21 , wherein the reducing agent is selected from the group consisting of ascorbic acid and its salts or derivatives claim 21 , saccharides with a reducing effect claim 21 , tin(II) carboxylates claim 21 , hydroxylamines claim 21 , phenolic reducing agents claim 21 , catecholes claim 21 , hydroxylamines [sic] and combinations thereof.23. Reaction resin composition according to claim 21 , wherein the α-halocarboxylic acid ester is wholly or partially soluble or emulsifiable in water.25. Reaction resin composition according to claim 24 , wherein the copper(II) salt is selected from the group that consists of Cu(II)(PF) claim 24 , CuX claim 24 , where X=CI claim 24 , Br claim 24 , I claim 24 , Cu(OTf)and Cu(ll) carboxylates.26. Reaction resin composition according to claim 21 , wherein the nitrogen-containing ligand contains two or more nitrogen atoms and can form with copper(I) a chelate complex.27. Reaction resin composition according to claim 26 , wherein the nitrogen-containing ligand is selected among amino compounds with at least two primary claim 26 , secondary and/or tertiary amino groups or amino compounds with ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 16-. (canceled)7. A method to control lost circulation in a lost circulation zone in a wellbore , comprising: Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles; and', 'a polyuronide, the polyuronide selected to crosslink in the presence of calcium dissolved from the clinker., 'introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises8. The method of claim 7 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 7 , ASTM International Type V cement clinker claim 7 , API Class A cement clinker claim 7 , and API Class G cement clinker.9. The method of claim 7 , wherein the polyuronide comprises an alginate or a pectinate.10. The method of claim 7 , wherein the polyuronide comprises apple pectin or citrus pectin.11. The method of claim 7 , wherein the polyuronide comprises an amount in the range of 0.5 weight of the total weight (w/w %) by weight of water to 3 w/w % by weight of water.12. The method of claim 7 , wherein the cement clinker comprises a plurality of ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;a polyuronide selected to crosslink in the presence of calcium dissolved from the clinker.2. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker API Class G cement clinker.3. The LCM composition of claim 1 , wherein the polyuronide comprises an alginate or a pectin.4. The LCM composition of claim 1 , wherein the polyuronide comprises apple pectin or citrus pectin.5. The LCM composition of claim 1 , wherein the polyuronide comprises an amount in the range of 0.5 weight of the total weight (w/w %) by weight of water to 3 w/w % by weight of water.6. The LCM composition of claim 1 , wherein the cement clinker comprises a plurality of particles each having a diameter greater than 1 centimeter. This application is a divisional of and claims priority from U.S. Non-provisional application Ser. No. 15/788,457 filed Oct. 19, 2017, and titled “LOSS CIRCULATION COMPOSITIONS (LCM) HAVING PORTLAND CEMENT CLINKER, which claims priority from U.S. ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;a polysaccharide;divinyl sulfone (DVS), the polysaccharide selected to crosslink in the presence of the DVS.2. The LCM composition of claim 1 , wherein the Portland cement clinker is selected from the group consisting of ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , and API Class G cement clinker.3. The LCM composition of claim 1 , wherein the polysaccharide comprises at least one of: xanthan gum claim 1 , hydroxyethyl cellulose claim 1 , diutan gum claim 1 , welan gum and guar gum.4. The LCM composition of claim 1 , wherein the polysaccharide comprises a combination of xanthan gum and guar gum.5. The LCM composition of claim 1 , wherein the polysaccharide comprises an amount in the range of 0.5 weight of the total weight (w/w %) to 0.8 w/w %.6. The LCM composition of claim 1 , wherein the weight ratio of polysaccharide to DVS is in the range of 1:1 to 1:0.5.7. The LCM composition of claim 1 , comprising sodium hydroxide in an amount sufficient to adjust the pH of a solution of the polysaccharide and ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A method to control lost circulation in a lost circulation zone in a wellbore , comprising: Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;', 'a polysaccharide; and', 'divinyl sulfone (DVS), the polysaccharide selected to crosslink in the presence of the DVS., 'introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises2. The method of claim 1 , wherein the Portland cement clinker is selected from the group consisting of ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , and API Class G cement clinker.3. The method of claim 1 , wherein the polysaccharide comprises at least one of: xanthan gum claim 1 , hydroxyethyl cellulose claim 1 , diutan gum claim 1 , welan gum and guar gum.4. The method of claim 1 , wherein the polysaccharide comprises a combination of xanthan gum and guar gum.5. The method of claim 1 , wherein the polysaccharide comprises an amount in the range of 0.5 weight of the total weight (w/w %) ...

Construction material without a hydraulic binder

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.

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

New cement-polymer composites and processes of making and using are detailed. One exemplary cement-polymer composite include a Portland cement, an epoxide polymer, a thiol-containing crosslinking agent, and an optional phase separation inhibitor. These composites are dynamically self-healing, mechanically robust, and thermally stable in high temperature environments and can be expected to increase service lifetimes in various applications including energy producing wellbores. 1. A self-repairing cement-polymer composition , comprising:a cement-containing material combined with an epoxide polymer and/or epoxide oligomers having at least one disulfide (S—S) group therein with a crosslinking agent and an optional phase-separation inhibitor therein all combined in an aqueous solvent forming a composite-forming slurry configured to form chemical bonds with compounds therein and structures and materials contacted thereby when introduced in a receiving location yielding a self-repairing and self-readhering cement-polymer composite matrix therein upon curing.2. The composite of wherein the cement-containing material is an Ordinary Portland Cement.3. The composite of wherein the epoxide polymer is selected from EPS 25; EPS 70; or EPS 25 and EPS 70.4. The composite of wherein the epoxide polymer comprises a terminal epoxide group.5. The composite of wherein the crosslinking agent includes a functional group selected from the group consisting of hydrogen; alcohols; thiols; ethers; esters; amines; amides; and combinations thereof.6. The composition of wherein the phase separation inhibitor includes at least one terminal functional group reactive with the epoxide polymer and/or epoxide oligomers thereof selected from the group consisting of amines; thiols; epoxides; alcohols; amides; carboxylates; carbonyls; and combinations thereof.7. The composition of wherein the phase separation inhibitor is selected from poly(ethylene glycol) diglycidyl ethers (PEO); poly(ethylene) glycols ...

Marble-like composite materials and methods of preparation thereof

The invention provides novel marble-like composite materials and methods for preparation thereof. The marble-like composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production. The precursor materials include calcium silicate and calcium carbonate rich materials, for example, wollastonite and limestone. Various additives can be used to fine-tune the physical appearance and mechanical properties of the composite material, such as pigments (e.g., black iron oxide, cobalt oxide and chromium oxide) and minerals (e.g., quartz, mica and feldspar). These marble-like composite materials exhibit veins, swirls and/or waves unique to marble as well as display compressive strength, flexural strength and water absorption similar to that of marble.

Aqueous ampholyte polymer containing solutions for subterranean applications

A aqueous solution that includes water, from 100,000 to 300,000 ppm of dissolved solids, from 0.5 to 3 gallons per thousand gallons of a water-in-oil emulsion, and an inverting surfactant. The water-in oil emulsion includes an oil phase and an aqueous phase where the oil phase is a continuous phase comprising an inert hydrophobic liquid and the aqueous phase is present as dispersed distinct particles in the oil phase. The aqueous phase contains water, a water soluble polymer, and surfactants. The water soluble polymer includes 30 to 50 weight percent of a non-ionic monomer, 5 to 15 weight percent of a sulfonic acid containing monomer, and 40 to 60 weight percent of a cationic monomer. The water soluble polymer makes up from 10 to 35 weight percent of the water-in-oil emulsion.

Controllable High Flow Concrete

The present invention relates to very high workable yet controllable concrete mix design, admixture composition, and process for placing concrete. The mix design relates to particular aggregate/cement ratios and types which are characteristic of ready mix concrete (RMC), which provide high fluidity reminiscent of self-consolidating concrete (SCC), and which provides advantages over both RMC and SCC in terms of ease and speed in placement and finishability at the construction site placement zone, regardless of whether into a horizontal formwork (e.g., for slabs, floors) or into vertical formwork (e.g., for blocks, walls, columns, etc.), without loss of control and without generating high risks of segregation even when small amounts of water are added at the size to facilitate finishing of the concrete surface. An inventive admixture combination which enables this unique design involves two different polycarboxylate comb polymers in combination with two specific viscosity modifying agents, and this combination provides highly workable concrete to be placed in a controlled, efficient manner. 1. A process for placing a high flow concrete into a placement zone , comprising:(A) providing, at a delivery site, at least one concrete delivery mixer-truck load of concrete having a total pour volume of 1 to 16 cubic yards into a placement zone, the concrete load mixture comprising (i) coarse aggregate in the amount of at least 1550 pounds per cubic yard based on total volume of the concrete load mixture, wherein at least thirty percent of the coarse aggregate is retained on a sieve with a 0.5 inch opening as determined by standard sieve testing under ASTM C33/C33M-16; (ii) cementitious binder in the amount of 376-752 pounds per cubic yard of the concrete load mixture; (iii) a polysaccharide biopolymer selected from the group consisting of welan, diutan, xanthan, guar gum, or mixture thereof, the biopolymer being present in the amount of 0.0003 to 0.003 per hundred pounds of ...

MULTIFUNCTIONAL CEMENT HYDRATION HEAT CONTROL MATERIAL AND MANUFACTURING METHOD THEREFOR

Disclosed are a multifunctional cement hydration heat control material and a manufacturing method therefor. The cement hydration heat control material in is a comb polymer having three side chain structures, the three side chain structures are respectively a carboxyl group, a sugar alcohol group, and a polyether structure, and the main chain of the polymer is a carbon chain structure formed by free-radical polymerization of a double bond in a double bond compound monomer. The multifunctional cement hydration heat control material can achieve integration of cement hydration heat control performance, water reduction performance, and shrinkage reduction performance in a same molecule, can achieve control focusing on a performance by means of structural adjustment, does not need multi-component compounding during use, and is more convenient. The control material is non-toxic and water-soluble, can be made to have an appropriate concentration, and is convenient to use. 1. A multifunctional material for controlling cement hydration heat , wherein the material for controlling cement hydration heat is a comb-shaped polymer with three kinds of side chain structures , and the three kinds of side chain structures are carboxyl groups , alditol groups , polyalkylene glycols , respectively; and a backbone of the polymer is a carbon chain structure formed through free radical polymerization of double bonds in double-bond compound monomers.2. The multifunctional material for controlling cement hydration heat as claimed in claim 1 , wherein the multifunctional material for controlling cement hydration heat is prepared by free radical polymerization of monomers A claim 1 , B claim 1 , and C; the monomer A is a (methyl) acrylic acid (acrylate) monomer claim 1 , the monomer B is a double-bond compound with one alditol group claim 1 , and the monomer C is unsaturated polyether; and a weight-average molecular weight of the material for controlling cement hydration heat ranges from 10000 ...

Polymer fibers for concrete reinforcement

Provided are cementitious mixtures and processes for reinforcing a cementitious matrix. In one form of the process for reinforcing a cementitious matrix includes the steps of mixing a mineral cement and one or more populations of synthetic copolymer microfibers including about 1 mol. % to about 25 mol. % and from about 75 mol. % to about 99.5 mol. % of propylene monomeric units.

METHOD FOR PROVIDING ZONAL ISOLATION IN AN UNDERGROUND WELLBORE

Slugs of a cement slurry and of a resin composition are injected into an underground wellbore. The resin composition contains at least a curable resin, a filler, a swelling agent, a curing initiator, and a crosslinking retarding agent. The curing initiator activates the curing in response to temperature. The crosslinking retarding agent delays curing of the resin, to permit pumping the composition into the wellbore. After injection, the cement slurry and resin composition are allowed to cure, to create a stacked cement and cured resin column that provides a zonal isolation seal within the wellbore. The resin composition may suitably be an elastomer-forming composition. The cured resin may be swellable by allowing contact with a wellbore fluid. 1. A method for providing zonal isolation in an underground wellbore , the method comprising creating a stacked cement and cured resin column that provides a zonal isolation seal within the wellbore employing steps of:injecting into the wellbore at least one slug of a cement slurry;in addition to said injecting into the wellbore the at least one slug of a cement slurry, injecting into the wellbore at least one additional slug of a resin composition comprising a curable resin, a filler, a swelling agent, a curing initiator and a crosslinking retarding agent, which delays curing of the resin to permit pumping the composition into the wellbore;creating a stacked cement and resin column by forming alternating layers of the at least one slug of the cement slurry and the at least one additional slug of the resin composition within the wellbore; andallowing the cement slurry and resin composition in the stacked cement and resin column to cure.2. The method of claim 1 , wherein said cured resin is swellable upon contact with a wellbore fluid.3. The method of claim 2 , wherein the wellbore fluid is a hydrocarbon oil claim 2 , or produced water claim 2 , or water from the gas phase claim 2 , or any combination thereof.4. The method of ...

FLUID LOSS ADDITIVE FOR LOW-PORTLAND OR NON-PORTLAND CEMENTS

A cement composition can include: water; cement, wherein less than 75 w/w % of the total amount of the cement is Portland cement; and a fluid loss additive, wherein the fluid loss additive comprises a polymer network having at least one branching point formed with a monomer and a cross-linking agent that comprises at least three active functional groups. The cement can also be a non-Portland cement. The monomer can be a vinyl ester-based monomer that is polymerized with the cross-linking agent to form the polymer network. The cement composition can be used in an oil and gas operation. 1. A method of cementing in a subterranean formation comprising: (i) cement, wherein less than 75 w/w % of the total amount of cement is Portland cement;', '(ii) water; and', '(iii) a fluid loss additive, wherein the fluid loss additive comprises a polymer network having at least one branching point formed with a monomer and a cross-linking agent that comprises at least three active functional groups; and, 'introducing a cement composition into the subterranean formation, the cement composition comprisingallowing the cement composition to set.2. The method according to claim 1 , wherein the water is selected from the group consisting of freshwater claim 1 , brackish water claim 1 , and saltwater claim 1 , in any combination thereof in any proportion.3. The method according to claim 1 , wherein the cement is selected from the group consisting of Portland cements claim 1 , gypsum cements claim 1 , high alumina content cements claim 1 , slag cements claim 1 , high magnesia content cements claim 1 , pozzolan claim 1 , fly ash claim 1 , lime claim 1 , slaked lime claim 1 , sorels cements claim 1 , and combinations thereof.4. The method according to claim 1 , wherein less than 30 w/w % of the total amount of cement is Portland cement.5. The method according to claim 1 , wherein the cement does not include Portland cement.6. The method according to claim 1 , wherein the monomer is a vinyl ...

BLOCK COPOLYMER

A block copolymer, in particular for use as a dispersant for mineral binder compositions, including at least one first block A and at least one second block B, wherein the first block A has a monomer unit M1 and the second block B has a monomer unit M2. To this end a proportion of monomer units M2 which is in any case present in the first block A is less than 25 mol %, in particular less than or equal to 10 mol %, based on all the monomer units M1 in the first block A and a proportion of monomer units M1 which is in any case present in the second block B is less than 25 mol %, in particular less than or equal to 10 mol %, based on all the monomer units M2 in the second block B. 2. The block copolymer as claimed in claim 1 , wherein at least one first block A comprises 5-70 monomer units M1 and/or in that the at least one second block B comprises 5-70 monomer units M2.3. The block copolymer as claimed in claim 1 , wherein the first block A comprises 25-35 monomer units M1 and/or in that the at least one second block B comprises 10-20 monomer units M2.4. The block copolymer as claimed in claim 1 , wherein a molar ratio of the monomer units M1 to the monomer units M2 is situated in the range of 0.5-6.5. The block copolymer as claimed in claim 1 , wherein the first block A claim 1 , based on all the monomer units in the first block A claim 1 , consists to an extent of at least 20 mol % of monomer units M1 of the formula I and/or in that the second block B claim 1 , based on all the monomer units in the second block B claim 1 , consists to an extent of at least 20 mol % of monomer units M2 of the formula II.7. The block copolymer as claimed in claim 1 , wherein R=COOM; Rand R claim 1 , independently of one another claim 1 , are H claim 1 , —CHor mixtures thereof; Rand R claim 1 , independently of one another claim 1 , are H or —CH; Rand R claim 1 , independently of one another claim 1 , are H or —COOM; - and X for at least 75 mol % of all monomer units M2 claim 1 , is —O ...

Waterborne coating composition

A waterborne coating composition including: an aqueous emulsion polymer having a copolymerized Phosphorous-acid monomer, an aqueous dispersion of cement, and a solid inert filler, each in certain amounts, is provided. A method for providing a coated substrate employing the waterborne coating composition that has been subsequently activated and the coated substrate so formed are also provided.

Cement Having Cross-Linked Polymers

A composition and method of forming a wellbore cement that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition. 1. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine.2. The cement composition of claim 1 , where the diamine is selected from the group consisting of ethylenediamine claim 1 , 1 claim 1 ,3-diaminobenzene claim 1 , 1 claim 1 ,4-diaminobenzene claim 1 , 1 claim 1 ,6-diaminohexane claim 1 , 1 claim 1 ,4-phenylenediamine claim 1 , and combinations.3. The cement composition of claim 2 , where the 1 claim 2 ,6-diaminohexane is mixed with sebacoyl chloride.4. The cement composition of claim 1 , where the trifunctional carboxylic acid comprises 1 claim 1 ,3 claim 1 ,5-benzenetricarboxylic acid chloride.5. The cement composition of claim 1 , where the polyaramide comprises a compound selected from the group consisting of poly(ethylene trimesoylamide) claim 1 , poly-(meta-phenylene trimesoylamide) claim 1 , poly-(para-phenylene trimesoylamide) claim 1 , poly(hexamethylene trimesoylamide) claim 1 , poly(hexamethylene-co-sebacoyl trimesoylamide) claim 1 , poly-(para-phenylene trimesoylamide) claim 1 , and a blend of poly-(meta-phenylene trimesoylamide) and poly(hexamethylene trimesoylamide).6. The cement composition of claim 5 , where the blend of poly-(meta-phenylene trimesoylamide) and poly(hexamethylene trimesoylamide) comprises a 1:1 ratio.7. The cement composition of claim 1 , where the polyaramide condensate comprises about 3% by weight of the ...

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

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.

Novel weighted elastomer systems for use in cement, spacer and drilling fluids

A drilling fluid, spacer fluid and cementing compositions for use in subterranean wells are disclosed along with methods for making using same, where the compositions include a particulate weighted elastomeric composition system including at least one higher density weighting agent and at least one elastomer, where the higher density weighting agents have a density of at least 5.0 g/cm 3 and conventional weighting agents, to produce compositions having a desired high density, while retaining other fluid properties such as pumpability, gas tight sealing, low tendency to segregate, and reduced high temperature cement strength retrogression.

Self-Healing Composite of Thermoset Polymer and Programmed Super Contraction Fibers

A composition comprising thermoset polymer, shape memory polymer to facilitate macro scale damage closure, and a means for molecular scale healing is disclosed; the composition has the ability to resolve structural defects by a bio-mimetic close-then heal process. In use, the shape memory polymer serves to bring surfaces of a structural defect into approximation, whereafter use of the means for molecular scale healing allowed for movement of the healing means into the defect and thus obtain molecular scale healing. The means for molecular scale healing can be a thermoplastic such as fibers, particles or spheres which are used by heating to a level at or above the thermoplastic's melting point, then cooling of the composition below the melting temperature of the thermoplastic. Compositions of the invention have the ability to not only close macroscopic defects, but also to do so repeatedly even if another wound/damage occurs in a previously healed/repaired area. 1. A composition comprising:a cement matrix; and,programmed fibrous shape memory polymer which comprises the ability to contract when heated to above its shape recovery temperature.2. The composition of wherein the cement matrix is concrete cement.3. The composition of wherein the cement matrix is asphalt cement.4. The composition of further comprising means for healing at a molecular scale dispersed throughout said matrix.5. The composite of wherein the shape memory polymer is a polyurethane shape memory polymer.6. The composition of wherein the fibrous shape memory polymer fiber is coated by a fixing agent.7. The composite of wherein the fibrous shape memory polymer is in segments of at least the critical fiber length. This application is a divisional of U.S. Nonprovisional application Ser. No. 14/248,711, filed 4 Apr. 2014, now allowed with the issue fee paid; which claims priority from U.S. Provisional Application Ser. No. 61/810,015, filed 9 Apr. 2013, entitled “Self-Healing Composite of Thermoset ...

CONCRETE VACUUM TUBE SEGMENT FOR HYPER-SPEED TRANSPORTATION SYSTEM USING ULTRA-HIGH PERFORMANCE CONCRETE (UHPC), AND MANUFACTURING METHOD THEREOF

The present invention provides a concrete vacuum tube segment for a hyper-speed transportation system using ultra-high performance concrete (UHPC) and a manufacturing method thereof. A concrete vacuum tube segment for a hyper-speed transportation system can be easily manufactured using UHPC, in which shrinkage and structural cracking do not occur due to mixing a binder and a short fiber to secure airtightness on the basis of a maximum fill theory, and accordingly, shrinkage of the concrete vacuum tube segment can be reduced even in a partial-vacuum state in which the magnitude of drying shrinkage is very small and quick drying occurs; when mixing the UHPC, an antifoaming agent is mixed and a circular vacuum pump is used to remove generated entrapped air to minimize the entrapped air; and a capsule-type crack healing material, which is able to repair fine cracks, is compacted to secure airtightness of the concrete vacuum tube segment.

COMBINATION FOR FILTRATE CONTROL AND GAS MIGRATION

The present invention relates to the use of a combination of block polymers and particular compositions in a fluid injected under pressure into an oil-bearing rock, where: the fluid comprises solid particles and/or is brought into contact with solid particles within the oil-bearing rock following the injection thereof, the combination comprises (i) a polymer comprising: —a first block that is adsorbed on at least a portion of the particles; and —a second block, having a composition different from that of the first, and having a weight-average molecular weight of greater than 10 000 g/mol, for example greater than 100 000 g/mol, and that is soluble in the fluid; (ii) particles suitable for providing a gas barrier effect, preferably a latex and/or silica particles. 1. A method , comprising injecting a fluid (F) under pressure into a subterranean formation ,wherein said fluid (F) comprises solid particles (p) and/or is brought into contact with solid particles (p) within the subterranean formation subsequent to its injection, anda combination comprising: a first block (A) which is adsorbed on at least a portion of the particles (p); and', 'a second block (B) with a composition distinct from that of said first block (A), with a weight-average molecular weight of greater than 10 000 g/mol and which is soluble in the fluid (F),, '(i) a block polymer (P) comprising(ii) particles capable of providing a gas barrier effect, preferably a latex and/or silica particles.2. The method according to claim 1 , wherein the particles capable of providing a gas barrier effect (ii) are a latex.3. The method according to claim 2 , wherein the latex is in the form of a suspension containing from 40% to 50% by weight of dry latex.4. The method according to claim 3 , wherein the amount of dry latex is from 1.5% to 6% by weight claim 3 , with respect to the amount of solid particles (p) containing in the fluid (F).5. The method according to claim 1 , wherein the latex is made of styrene/ ...

Cement slurries, cured cement and methods of making and use of these

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 expanding capabilities and may be used, for instance, in the oil and gas drilling industry. The cement slurry comprises water, a cement precursor material, and an expanding agent. The expanding agent comprising at least a poly(acrylic acid)-metal oxide nanocomposite, where the metal oxide comprises MgO, CaO, or both, and the poly(acrylic acid) comprises a t-butyl terminal group, an isobornyl terminal group, or both.

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

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 expanding capabilities and may be used, for instance, in the oil and gas drilling industry. The cement slurry comprises water, a cement precursor material, and an expanding agent. The expanding agent comprising at least a poly(lactic acid)-metal oxide nanocomposite. The metal oxide comprises MgO, CaO, or both, and the poly(lactic acid) comprises a carboxylic acid terminal group. 1. A cement slurry comprising:water;a cement precursor material; andan expanding agent comprising at least a poly(lactic acid)-metal oxide nanocomposite, where the metal oxide comprises MgO, CaO, or both, and the poly(lactic acid) comprises a carboxylic acid terminal group.2. The cement slurry of claim 1 , in which the poly(lactic acid) having the carboxylic acid terminal group is a reaction product of poly(lactic) acid and succinic anhydride claim 1 , maleic anhydride claim 1 , or both.5. The cement slurry of claim 1 , in which the cement precursor material comprises one or more components selected from the group consisting of 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 , trivalent chromium claim 1 , calcium aluminate claim 1 , quartz claim 1 , or combinations of these.6. The cement slurry of claim 1 , in which 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 , suspending agents claim 1 , weighting agents claim 1 , fluid loss control agents claim 1 , lost ...

LIGHTWEIGHT WALL REPAIR COMPOUNDS

Herein are disclosed wall repair compounds comprising at least one or more polymeric binder latex emulsions, one or more inorganic fillers, and comprising an amount of organic polymeric thickener that is less than about 0.1 percent by weight based on the total weight of the wall repair compound. In certain embodiments, the wall repair compound comprises an inorganic filler system selected such that such that synthetic inorganic fillers comprise essentially 100 percent of the inorganic filler used. In certain embodiments, the wall repair compound comprises one or more glycol ether smoothing agents. 1. A wall repair compound , comprising ,an aqueous latex binder emulsion comprising an acrylic binder comprising vinyl acrylic polymers or copolymers made from the polymerization of monomers that comprise acrylate and/or methacrylate groups, wherein the aqueous latex binder emulsion makes up at least about 40 percent by weight of the wall repair compound;an inorganic filler system comprising at least 99% by weight glass bubbles, wherein the inorganic filler system makes up at most 50 percent by weight of the wall repair compound.2. The compound of wherein the acrylic binder comprises a glass transition temperature from about 15° C. to about 35° C.3. The compound of wherein the acrylic binder exhibits a glass transition temperature peak covering an interval of at least 5° C.4. The compound of wherein the acrylic binder comprises a glass transition temperature from about 15° C. to about 35° C. and exhibits a glass transition temperature peak covering an interval of at least 5° C.5. The compound of wherein the inorganic filler system comprises essentially 100% by weight glass bubbles.6. The compound of wherein the compound comprises one or more glycol ether smoothing agents in an amount of at most about 2.5 percent by weight.7. The compound of wherein the compound comprises less than about 0.1 percent by weight of inorganic thickening filler clay.8. The compound of wherein ...

Hydrophobically and hydrophilically modified polysaccharides and methods of using the same for treatment of a subterranean formation

The present invention relates to hydrophobically and hydrophilically modified polysaccharides and methods of using the same for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes obtaining or providing a composition including a hydrophobically and hydrophilically modified polysaccharide (HHMP). The method includes placing the composition in a subterranean formation.

VULCANIZED OIL AND WATER SWELLABLE PARTICULATE COMPOSITE COMPOSITIONS

Embodiments herein include a method comprising providing a self-sealing cement slurry comprising an aqueous base fluid, a cementitious material, and a vulcanized oil and water swellable particulate composite, wherein the vulcanized oil and water swellable particulate composite comprises an elastomer, a crosslinked water swellable superabsorbent polymer, and a hydrophobically modified water-soluble polymer; introducing the self-sealing cement slurry into a subterranean formation; and allowing the self-sealing cement slurry to set, wherein the vulcanized oil and water swellable particulate composite is capable of swelling in the presence of a non-aqueous fluid and an aqueous fluid to reduce the permeability of fluid flowpaths in the set self-sealing cement slurry upon loss of structural integrity. 1. A vulcanized oil and water swellable particulate composite comprising: wherein the elastomer comprises a non-polar monomer, a polar monomer, and an ionizable polar monomer, and', 'wherein the vulcanized oil and water swellable particulate composite is capable of swelling in the presence of a non-aqueous fluid and an aqueous fluid., 'an elastomer, a crosslinked water swellable superabsorbent polymer, and a hydrophobically modified water-soluble polymer,'}2. The composite of claim 1 , wherein the non-polar monomer is selected from the group consisting of a diene; a substituted diene; an alpha-olefin; and any combination thereof.3. The composite of claim 1 , wherein the polar monomer is non-ionic.4. The composite of claim 1 , wherein the polar monomer is selected from the group consisting of an acrylonitrile; a N-alkoxyalkyl acrylamide; a vinyl acetate; a vinylformamide; a vinyl acetamide; a vinyl methyl ether; a vinyl pyrrolidone; an acrylate; a vinyl siloxane; and any combination thereof.5. The composite of claim 1 , wherein the polar monomer is capable of generating a carboxylate group.6. The composite of claim 1 , wherein the ionizable polar monomer is selected from the ...

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

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. 134.-. (canceled)35. A method for preventing the formation of micro-cracks and fractures in the cement of an oil well , the method comprising providing to the oil well a cement composition comprising cement and a sliding-ring polymer additive , the sliding-ring polymer additive comprising:a linear polymer;at least one ring compound, wherein the linear polymer is threaded through the opening of the ring compound; andstopper 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 or non-ionic group or combination thereof; andthe at least two molecules of polyrotaxane are cross-linked to each other through a chemical bond.36. The method of claim 35 , wherein the linear polymer is selected from the group consisting of polyvinyl alcohol claim 35 , polyvinylpyrrolidone claim 35 , poly(meth)acrylic acid claim 35 , a cellulose-based resin claim 35 , polyacrylamide claim 35 , polyethylene oxide claim 35 , polyethylene glycol claim 35 , polypropylene glycol claim 35 , a polyvinyl acetal-based resin claim 35 , polyvinyl methyl ether claim 35 , polyamine claim 35 , polyethyleneimine claim 35 , casein claim 35 , gelatin claim 35 , starch claim 35 , a polyolefin-based resin claim 35 , a polyester resin claim 35 , a polyvinyl chloride resin claim 35 , a polystyrene-based resin claim 35 , an acrylic resin claim 35 , a polycarbonate resin claim 35 , a polyurethane resin claim 35 , a vinyl chloride-vinyl acetate copolymer resin claim 35 , a polyvinylbutyral resin claim 35 , ...

SEQUENCED POLYMERS FOR MONITORING THE FILTRATE AND THE RHEOLOGY

The present invention relates to the use of a sequenced polymer as an agent for monitoring the filtrate and the rheology of a fluid injected under pressure into an oil rock, wherein the fluid comprises solid particles and/or is brought into contact with solid particles within the oil rock after being injected, the polymer comprising: a first block which is adsorbed onto at least some of the particles; and a second block having a composition other than that of the first block and a mean molecular weight of more than 10,000 g/mol, for example mom than 100,000 g/mol, and which is soluble in the fluid. 1. A fluid (F) for injecting under pressure into a subterranean formation , comprising a fluid loss control and rheology agent , wherein the fluid loss control and rheology agent is a block polymer (P) comprising:a first block (A); anda second block (B) with a composition distinct from that of said first block (A), with a weight-average molecular weight of greater than 10 000 g/mol, and which is soluble in the fluid (F).2. The fluid claimed in claim 1 , wherein the polymer has a weight-average weight of greater than 500 000 g/mol.3. The fluid claimed in claim 1 , wherein the polymer has a weight-average weight of less than 200 000 g/mol and reduces the viscosity of the fluid while providing a fluid loss control effect.4. The fluid claimed in claim 1 , wherein the fluid (F) does not comprise solid particles (p).5. The fluid claimed in claim 1 , wherein the fluid (F) comprises particles (p) combined with the polymer (P) claim 1 , the polymer being advantageously employed as dispersing and stabilizing agent for the dispersion of the particles (p).6. The fluid claimed in claim 1 , wherein the fluid (F) is an aqueous fluid and wherein the block (B) is a block at least predominantly composed of monomer units selected from the group consisting of the monomer units U1 to U5 defined below claim 1 , and the mixtures of these monomer units:monomer units U1: monomer units comprising ...

Freeze-thaw durable geopolymer compositions and methods for making same

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.

SEQUENCED POLYMERS FOR MONITORING THE FILTRATE

The present invention relates to the use of a sequenced polymer as an agent for monitoring the filtrate in a fluid injected under pressure into an oil rock, wherein the fluid comprises solid particles and/or is brought into contact with solid particles within the oil rock after being injected, the polymer comprising at least three blocks, including: at least one first block which is adsorbed, preferably irreversibly, onto at least some of the particles (p); a second block (R) having a composition other than that of the first and a mean molecular weight of more than 10,000 g/mol, and which is soluble in the fluid (F); and at least one third block of type (A) or type (B). 1. A fluid (F) for injecting under pressure into a subterranean formation , comprising a fluid loss control agent , wherein the fluid loss control agent is a block polymer (P) comprising:at least one first block (A); andat least one second block (B) with a composition distinct from that of said first block, and with a weight-average molecular weight of greater than 10000 g/mol, and which is soluble in the fluid (F); andat least one third block of type (A) or of type (B).2. The fluid claimed in claim 1 , wherein the fluid (F) is aqueous.3. The fluid claimed in claim 1 , wherein the block polymer (P) is a triblock polymer of (A)-(B)-(A) or (B)-(A)-(B) type or a polymer of star type comprising at least one branch of type (A) and at least two branches of type (B) or else comprising at least two branches of type (A) and at least one branch of type (B).4. The fluid claimed in claim 1 , wherein the block polymer (P) is a polymer of comb type selected from the group consisting of:a polymer carrying several side blocks of type (A) on a linear block of type (B);a polymer carrying several side blocks of type (B) on a linear block of type (A); anda polymer carrying several side blocks of type (A) and (B) on a linear polymer chain.5. The fluid claimed in claim 1 , wherein the fluid (F) does not comprise solid ...

Aqueous ampholyte polymer containing solutions for subterranean applications

A aqueous solution that includes water, from 100,000 to 300,000 ppm of dissolved solids, from 0.5 to 3 gallons per thousand gallons of a water-in-oil emulsion, and an inverting surfactant. The water-in oil emulsion includes an oil phase and an aqueous phase where the oil phase is a continuous phase comprising an inert hydrophobic liquid and the aqueous phase is present as dispersed distinct particles in the oil phase. The aqueous phase contains water, a water soluble polymer, and surfactants. The water soluble polymer includes 30 to 50 weight percent of a non-ionic monomer, 5 to 15 weight percent of a sulfonic acid containing monomer, and 40 to 60 weight percent of a cationic monomer. The water soluble polymer makes up from 10 to 35 weight percent of the water-in-oil emulsion.

Two component cement composition

The invention relates to a cement formulation with two liquid components. This alleviates the problems which result from dust generation where a powdered cement component is employed. Furthermore, the cement may be formed with conventional liquid handling and mixing equipment. The cement binder formulation includes a plasticizer. As the plasticizer is non-volatile, it remains an integral part of both the formulation and the final product obtained after application and drying of that formulation.

Artificial Marble Composition and Artificial Marble Using Same

The present invention provides an artificial marble composition and an artificial marble using the same, the composition including (A) 100 parts by weight of an acrylic resin syrup, (B) 150 parts by weight to 250 parts by weight of an aluminum-based inorganic filler, (C) 8 parts by weight to 100 parts by weight of a phosphorus-based flame retardant, and (D) 35 parts by weight to 100 parts by weight of a magnesium-based flame retardant.

HYDROLYTICALLY DEGRADABLE COMPOSITION

Disclosed are time controlled, hydrolytically degradable compositions that include a polyurethane; precipitated silica, carbon black, or a combination thereof; an organic acid adapted to facilitate degradation when the composition is contacted with water; a stabilizer; a first crosslinking agent; and an optional co-agent. The composition is adapted to degrade over a predetermined time period upon contact with water at a pH ranging from 5 to 8 and at a temperature ranging from 100° F. to 250° F. 1. A time controlled , hydrolytically degradable composition comprising:(a) a polyurethane;(b) a precipitated silica dispersed throughout the composition that is adapted to promote degradation of the composition when the composition is contacted with water and/or an aqueous environment, carbon black, or a combination thereof;(c) an organic acid adapted to promote degradation of the composition when the composition is contacted with water and/or an aqueous environment;(d) a stabilizer that stabilizes the composition before contact with water and/or an aqueous environment;(e) a crosslinking agent that forms crosslinks throughout the polyurethane to provide hardness, rigidity, strength, and/or elasticity to the composition; and 'the composition is adapted to degrade upon contact with water at a pH ranging from 5 to 8 and at a temperature ranging from 100° F. to 250° F.', '(f) an optional co-agent, that when present, is adapted to aid in crosslink formation and further improve hardness, rigidity, and/or elasticity of the composition, wherein2. The composition of claim 1 , wherein the polyurethane is selected from the group consisting of a millable polyurethane claim 1 , a castable polyurethane claim 1 , and a thermoplastic polyurethane.3. The composition of claim 2 , wherein the polyurethane is a millable polyurethane.4. The composition of claim 1 , wherein the organic acid is selected from oleic acid claim 1 , stearic acid claim 1 , adipic acid claim 1 , citric acid claim 1 , ...

SYSTEM AND METHOD FOR PRODUCING AN IN-SITU PUR FOAM

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 ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement, wherein the cement comprises API Class G cement;a carrier fluid; andan inorganic consolidation activator selected to consolidate the clinker in the composition to form a plug when introduced into a lost circulation zone.2. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.3. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.4. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises a silicate salt.5. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises at least one of sodium silicate claim 1 , calcium aluminate claim 1 , calcium chloride claim 1 , sodium aluminate claim 1 , and potassium silicate.6. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises an ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement;a carrier fluid;a plurality of polymer fibers; andan inorganic consolidation activator selected to consolidate the clinker in the composition to form a plug when introduced into a lost circulation zone.2. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.3. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.4. The LCM composition of claim 1 , wherein the cement comprises API Class G cement.5. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises a silicate salt.6. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises at least one of sodium silicate claim 1 , calcium aluminate claim 1 , calcium chloride claim 1 , sodium aluminate claim 1 , and potassium silicate.7. The LCM composition of claim 1 ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement;a carrier fluid;particulate glass having an aspect ratio greater than or less than 1; andan inorganic consolidation activator selected to consolidate the clinker in the composition to form a plug when introduced into a lost circulation zone.2. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.3. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.4. The LCM composition of claim 1 , wherein the cement comprises API Class G cement.5. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises a silicate salt.6. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises at least one of sodium silicate claim 1 , calcium aluminate claim 1 , calcium chloride claim 1 , sodium aluminate claim 1 , and potassium ...

SELF-DESICCATING, DIMENSIONALLY-STABLE HYDRAULIC CEMENT COMPOSITIONS WITH ENHANCED WORKABILITY

Cementitious binder compositions for cementitious products including a hydraulic cement-based reactive powder blend, an inorganic flow control agent, and a metal-based dimensional movement stabilizing agent including at least one member of the group of lithium salt and lithium base, and methods for making the cementitious binder compositions. 1. A cementitious composition comprising a reaction product of a mixture of: an aluminate cement selected from at least one member of the group consisting of calcium aluminate cement and calcium sulfoaluminate cement in an amount of 25-80 parts by weight per 100 parts by weight of the hydraulic cement-based reactive powder,', 'Portland cement in an amount of 2.5-45 parts by weight per 100 parts by weight of the hydraulic cement-based reactive powder, and', 'a calcium sulfate selected from the group consisting of calcium sulfate dihydrate, calcium sulfate hemihydrate, anhydrous calcium sulfate and mixtures thereof, the calcium sulfate in an amount of 15-45 parts by weight per 100 parts by weight of the hydraulic cement-based reactive powder;, 'a hydraulic cement-based reactive powder comprisingan inorganic flow control agent in a weight ratio of inorganic flow control agent to hydraulic cement-based reactive powder of 0.25:1 to 3.0:1, wherein the inorganic flow control comprises at least one member selected from the group consisting of fly ash and calcium carbonate and wherein average particle size of the calcium carbonate ranges from about 10 to 150 microns;a metal-based dimensional movement stabilizing agent in an amount equal to 0 to 5.0 weight percent of the hydraulic cement-based reactive powder, wherein the metal-based dimensional movement stabilizing agent comprises a lithium compound selected from at least one member of the group of lithium salt and lithium base, wherein the lithium salt is at least one member of the group of lithium carbonate, lithium sulfate, lithium nitrate, lithium nitrite, and lithium silicate, ...

Sizing composition for wet use chopped strand glass fibers

A sizing composition including water, a polyvinylpyrrolidone film former, a silane coupling agent, a lubricant, and a surfactant is provided. The polyvinylpyrrolidone film former constitutes from 30 wt. % to 50 wt. % of the dry solids of the sizing composition. Wet use chopped strand glass fibers for use in reinforcing gypsum board are also provided. The wet use chopped strand glass fibers include chopped glass fibers having the sizing composition applied thereto. The sizing composition improves fiber bundle integrity, fiber flow rate, fiber flow rate consistency, and dispersibility of the wet use chopped strand glass fibers in a gypsum matrix or slurry.

STORAGE-STABLE RESIN-MODIFIED GLASS IONOMER CEMENT

The present invention relates to a composition for use as component of a multicomponent resin-modified glass ionomer cement, to a multicomponent resin-modified glass ionomer cement and also to a process for the preparation of the corresponding compositions and of cured dental materials. The invention furthermore relates to the corresponding use of one or more compounds (S) selected from the group consisting of sulfinic acids, salts of sulfinic acids and salts of organoboron compounds. 1. A composition for use as component of a multicomponent polymer-modified glass ionomer cement , the composition comprisingone or more radically polymerizable organic monomers (M),a basic glass composition (G) as crosslinking agent for polymers containing carboxylic acid groups (P) chosen from the group consisting of homo- and copolymers of an α,β-unsaturated carboxylic acid (C)and also, as constituent of a polymerization initiator system for itone or more compounds (A) chosen from the group consisting of the isomers of ascorbic acid, the salts of the isomers of ascorbic acid, the esters of the isomers of ascorbic acid and the ethers of the isomers of ascorbic acidandone or more compounds (S) chosen from the group consisting of sulfinic acids, salts of sulfinic acids and salts of organoboron compounds.2. The composition as claimed in claim 1 ,wherein the basic glass composition (G) comprises one or more cations of elements which are chosen from the group consisting of the metals of Main Groups I, II and III of the Periodic Table,and/orwherein the basic glass composition (G) comprises an aluminum fluorosilicate glassand/orwherein the basic glass composition (G) comprises one or more glasses with organically modified surface.3. The composition as claimed in claim 1 , 'is chosen from the group consisting of monomers with at least two ethylenic groups (M1),', 'wherein the one or at least one of the several radically polymerizable organic monomers (M)'}and/or 'is chosen from the group ...

Amphiphilic polymers for filtrate control

The present invention relates to the use of amphiphilic sequenced copolymers as an agent for controlling the filtrate in a fluid (F) injected under pressure into an underground formation, comprising —at least one chain (C) soluble in the fluid (F); and —at least one block (B) that is insoluble in the fluid (F).

Cement Having Cross-Linked Polymers

A wellbore cement composition that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement are realized by adding the polyamide to the cement composition. 1. A cement composition for use in a wellbore comprising:a cement; anda polyamide compound that is cross-linked and formed from an aromatic triacid chloride and an amine.2. The cement composition of claim 1 , where the polyamide has a molecular weight ranging from about 189 Daltons to about 555 Daltons.3. The cement composition of claim 1 , where the cement comprises a silica selected from the group consisting of crystalline silica and calcium silicate.4. The cement composition of claim 1 , where the amine comprises a diamine selected from the group consisting of ethylenediamine claim 1 , 1 claim 1 ,3-diaminobenzene claim 1 , 1 claim 1 ,4-diaminobenzene claim 1 , 1 claim 1 ,6-diaminohexane claim 1 , 1 claim 1 ,4-phenylenediamine claim 1 , and combinations.5. The cement composition of claim 1 , where the triacid chloride comprises 1 claim 1 ,3 claim 1 ,5-benzenetricarboxylic acid chloride.6. The cement composition of claim 1 , where the amine comprises 1 claim 1 ,6-diaminohexane that is mixed with sebacoyl chloride.7. The cement composition of claim 1 , where the polyamide compound comprises an amount that ranges from about 1% by weight of the cement to about 6% by weight of the cement. This application is a division of and claims priority to and the benefit of co-pending U.S. patent application Ser. No. 15/701,670 filed Sep. 12, 2017, which claimed priority from U.S. Provisional Application Ser. No. 62/397,126 filed Sep. 20, 2016, the full disclosures of which are incorporated by reference in their entirety and for all purposes. ...

Cement Having Cross-Linked Polymers

A method of forming a wellbore cement that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition. 1. A method of forming a cement composition for use in a wellbore comprising:forming a cross linked polyamide by combining a trifunctional carboxylic acid with a diamine;combining an amount of cement, water, and the polyamide to form a mixture; andcuring the mixture to from a cement composition.2. The method of claim 1 , where the polyamide comprises about 3% by weight of the cement claim 1 , and where the water comprises about 42% by weight of the cement.3. The method of claim 1 , where the polyamide comprises a polyaramide having a molecular weight that ranges from about 189 Daltons to about 555 Daltons.4. The method of claim 1 , where the diamine is selected from the group consisting of ethylenediamine claim 1 , 1 claim 1 ,3-diaminobenzene claim 1 , 1 claim 1 ,4-diaminobenzene claim 1 , 1 claim 1 ,6-diaminohexane claim 1 , 1 claim 1 ,4-phenylenediamine claim 1 , and combinations.5. The method of claim 1 , where the diamine comprises 1 claim 1 ,6-diaminohexane and is mixed with sebacoyl chloride.6. The method of claim 1 , where the step of curing the cement takes place inside of a wellbore. This application is a division of and claims priority to and the benefit of co-pending U.S. patent application Ser. No. 15/701,670 filed Sep. 12, 2017, which claimed priority from U.S. Provisional Application Ser. No. 62/397,126 filed Sep. 20, 2016, the full disclosures of which are incorporated by reference in their entireties and for all purposes.The present disclosure relates to a method of making a cement that bonds casing to a ...

Dispersion of (meth)acrylate copolymer containing a hydroxyalkyl (meth)acrylate functional monomer unit for flexible cementitious waterproofing materials

A dispersion of (meth)acrylate copolymer containing a hydroxyalkyl (meth)acrylate comonomer unit, which is obtained from polymerization of monomers comprising or consisting of, based on the total monomer weight, (a) from 25 to 45% by weight of at least one monovinyl aromatic monomer and/or methyl methacrylate; (b) from 50 to 70% by weight of at least one C 4-8 alkyl (meth)acrylate; (c) from 2 to 7% by weight of at least one hydroxyalkyl (meth)acrylate; (d) from 0 to 1% by weight of at least one α,β-monoethylenically unsaturated C 3-6 monocarboxylic or dicarboxylic acid; and (e) from 0 to 0.65% by weight of (meth)acrylamide, N-hydroxyalkyl (meth)acrylamide, 2-acrylamido-2-methylpropane sulfonic acid or a combination thereof. A powder of (meth)acrylate copolymer containing a hydroxyalkyl (meth)acrylate comonomer unit obtained by drying the dispersion. A flexible cementitious waterproofing material including the dispersion or the powder.

REPAIR COMPOUND AND METHODS OF USE

A repair compound for use in all applications and particularly well-suited for large hole repair. The repair compound includes a latex resin, a thickener, fibers, and a filler material. In some embodiments, the repair compound is configured to exhibit pseudoplastic-type behavior. In some embodiments, the repair compound has a density of not greater than 4.0 lbs/gal. In some embodiments, the repair compound includes hydrophobic and hydrophilic fibers of different morphologies. In some embodiments, the repair compound includes HASE-type thickeners. In some embodiments, the repair compound includes a bimodal distribution of hollow glass microspheres from two different strength/size curves. 1. A repair compound comprising:a latex resin or resin binder;a thickener;hydrophobic fibrillated fibers and hydrophilic fibers; anda filler material;wherein the repair compound exhibits pseudoplastic-type behavior and has a density of not greater than 4.0 lbs/gal.2. The repair compound of claim 1 , wherein the latex resin or resin binder is 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/or casein.3. The repair compound of claim 1 , wherein the latex resin or resin binder is 100% acrylate.4. The repair compound of claim 1 , wherein the latex resin or resin binder includes a resin blend.5. The repair compound of claim 4 , wherein the resin blend includes one latex resin and one non-latex resin.6. The repair compound of claim 1 , wherein the latex resin or resin binder has a Tg of at least 15.7. The repair compound of claim 1 , wherein the latex resin or resin binder has a Tg of at least 25.8. The ...

Preventing or reducing plant growth by biocementation

The present invention primarily relates to the use of a mixture capable of biocementation as a means of preventing or reducing plant growth, preferably weed growth. The invention also relates to a method for preventing or reducing plant growth, preferably weed growth, on/in a substrate.

Method for creating a Mineral Trioxide Aggregate material with improved biological effects

A dental device is improved in its ability to produce hydroxyl apatite by having a layer of mineral trioxide aggregate (MTA) deposited thereon. A tile of MTA is prepared, heat treated and sintered to produce a micronized tile of MTA that can then be deposited by physical vapor depositions, hot isostatic pressing, molding or other conventional technique. 1. An implantable dental device comprising a layer of mineral trioxide aggregate that produces hydroxyl apatite in the presence of phosphate buffered saline.2. An implantable dental device as in wherein said device is an obturation point.3. An implantable device as in wherein said obturation point comprises gutta-percha.4. A method for producing hydroxyl apatite on a dental device comprising the step of preparing a tile of mineral trioxide aggregate.5. A method as in further comprising forming a mixture by mixing Portland cement and deionized water in an amount of from about 10:1 to about 1:10.6. A method as in wherein said mixture is placed into a mold and cured in a humidity chamber.7. A method as in wherein said humidity chamber is set at 36 degrees Celsius with about a 90 percent relative humidity for from about 5 hours to about 10 days.8. A method as in wherein said cured mixture is subjected to a second heating by heating to from about 50 to about 500 degrees Celsius for from about 15 minutes to about 2 days.9. A method as in wherein said method includes micronizing said cured tile.10. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of from about 1 to about 200 microns.11. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of from about 10 to about 100 microns.12. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of about 53 microns.13. A method as in wherein said micronized tile is sintered at a temperature of from about 25 to about 400 degrees Celsius for a period of ...

Polyelectrolyte-layer forming block copolymers and compositions and uses thereof

The present invention relates generally to polyelectrolyte-layer forming block copolymers adsorbed at colloid interfaces in aqua solution and compositions and uses thereof. In particular, the present invention relates to agricultural material compositions comprising particles of at least one agricultural material and a polyelectrolyte-layer forming block copolymer. The present invention also relates to non-agricultural material compositions comprising particles of at least one non-agricultural material and a polyelectrolyte-layer forming block co-polymer.

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker;a carrier fluid; andparticulate glass having an aspect ratio greater than 1 or less than 1.2. The LCM composition of claim 1 , wherein the particulate glass comprises a plurality of glass fibers each have a length in the range of 1 millimeters (mm) to 6 millimeters.3. The LCM composition of claim 1 , where the particulate glass comprises an amount in the range of 0.25 weight of the total weight (w/w %) to 2.0 w/w %.4. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.5. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker API Class G cement clinker.6. The LCM composition of claim 1 , comprising cement.7. The LCM composition of claim 6 , wherein the cement comprises API Class G cement.8. The LCM composition of claim 6 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10. This application is a divisional of and claims priority from U.S. Non-provisional application Ser. No. 15/962,720 filed Apr. 25, ...

Mortar composition

A mortar composition, in particular for preparing a viscoelastic body or structure, includes: a) 1-20 wt.-% of a hydraulic binder, b) 30-80 wt.-% of aggregates, c) 5-75 wt.-% of a polymer, and d) 0.5-40 wt.-% of a layered material.

Asphalt Composition

The asphalt composition of the present invention is an asphalt composition comprising 1% to 15% by mass of a block copolymer (a) and an asphalt (c), wherein the block copolymer (a) comprises a specific block copolymer (a-1) and a specific block copolymer (a-2) in specific amounts, wherein the content of a vinyl aromatic monomer unit in the block copolymer (a) is 34% by mass or more and 55% by mass or less, the number average molecular weight of the block copolymer (a-1) is in the range of 20,000 to 73,000, and the number average molecular weight of the block copolymer (a-2) is 1.5 to 5.0 times higher than the number average molecular weight of the block copolymer (a-1).

VISCOSIFIER FOR OIL WELL FLUIDS

The present invention comprises a viscosifter for oil well fluids, said viscosifier comprising a cross-linked micro- or nano-fibrillated cellulose (MFC). 1. A viscosifier for oil well fluids , said viscosifier comprising a cross-linked Micro Fibrillar Cellulose (MFC) microfibers or Micro Fibrillar Cellulose (MFC) nanofibers ,wherein the MCF is cationic, anionic or non-ionic and selected from the group consisting of TEMPO mediated MFC, Enzymatic assisted MFC, mechanically produced MFC and Carboxymethylated MFC; andwherein the cross-linking is a chemical cross-linking.2. The viscosifier according to claim 1 , wherein the cross-linking agent is selected from the group consisting of formaldehyde claim 1 , difunctional aldehydes claim 1 , dichloroacetic acid claim 1 , polyepoxides claim 1 , urea claim 1 , sodium trimetaphosphate claim 1 , sodium tripolyphosphate claim 1 , epichlorophydrin claim 1 , phosphoryl chloride claim 1 , glyoxal (OCHCHO) claim 1 , and ammonium zirconium (IV) carbonate.3. The viscosifier according to claim 2 , wherein the difunctional aldehydes is glutaraldehyde.4. The viscosifier according to claim 1 , wherein the MFC has an average diameter in the range of 5-100 nm.5. The viscosifier according to claim 1 , wherein the MFC has a length in the range of 1-100 μm.6. The viscosifier according to claim 1 , wherein the MFC is in form of an aqueous dispersion.7. The viscosifier according to claim 1 , wherein the MFC is in form of a non-aqueous dispersion.8. An oil-well fluid comprising a dispersion including a viscosifier according to .9. The oil-well fluid according to claim 8 , wherein the dispersion is an aqueous dispersion.10. The oil-well fluid according to claim 9 , wherein the viscosifier is present in an amount 1-50 g/l claim 9 , or in an amount of 1-30 g/l claim 9 , or in an amount 5-15 g/l.11. The oil-well fluid according to claim 8 , wherein the oil-well fluid additionally comprises a proppant and the concentration of the cross-linked MFC in ...

ASPHALT COMPOSITION COMPRISING THERMOSETTING REACTIVE COMPOUNDS

An asphalt composition comprising 0.1 to 10.0 wt.-% based on the total weight of the composition of a thermosetting reactive compound selected from the group consisting of polymeric MDI, epoxy resins and melamine formaldehyde resins, wherein at least 18% by weight based on the total weight of the composition are particles with a sedimentation coefficient above 5000 Sved in a white spirit solvent. 1. An asphalt composition comprising 0.1 to 10.0 wt.-% based on the total weight of the composition of a thermosetting reactive compound selected from the group consisting of polymeric MDI , epoxy resins and melamine formaldehyde resins , wherein at least 18% by weight based on the total weight of the composition are particles with a sedimentation coefficient above 5000 Sved in a white spirit solvent.2. The asphalt composition according to claim 1 , wherein above 20% by weight based on the total weight of the composition are particles with a sedimentation coefficient in a range of from 10000 to 1000000 Sved in a white spirit solvent.3. The asphalt composition according to claim 1 , wherein the thermosetting reactive compound is polymeric MDI and the polymeric MDI has a functionality of at least 2.5.4. The asphalt composition according to claim 1 , wherein the amount of polymeric MDI is of from 0.5 to 2.0 wt.-% based on the total weight of the composition.5. The asphalt composition according to claim 1 , wherein the amount of polymeric MDI is of from 2.0 to 5.0 wt.-% based on the total weight of the composition.6. The asphalt composition according to claim 1 , wherein the polymeric MDI has a functionality of at least 2.7.7. The asphalt composition according to claim 1 , wherein the polymeric MDI has iron content in the range of from 1 to 80 ppm.8. A process for the preparation of the asphalt composition according to comprising the following steps:a) Heating up the starting asphalt to a temperature of from 110 to 190° C.b) Adding the desired amount of thermosetting reactive ...

CHEMICAL COMPOSITION OF SUPERABSORBENT VESICLES, METHOD FOR MORTAR CEMENT ADMIXTURE, AND APPLICATIONS OF THE SAME

Embodiments provide a mortar slurry and a method for preparing a hardened mortar. The method includes the steps of: mixing an aramide capsule, a cement, a silica, and a water to form a mortar slurry; and allowing the mortar slurry to set to form the hardened mortar, where the aramide capsule is embedded in the hardened mortar. A continuous solvent and a surfactant are mixed to produce a continuous phase. A dispersed solvent and a dispersed monomer are mixed to produce a dispersed phase. The continuous solvent and a crosslinker are mixed to produce a crosslinker solution. The continuous phase and the dispersed phase are mixed to form a mixture having an emulsion such that the dispersed phase is dispersed as droplets in the continuous phase, where an interface defines the droplets of the dispersed phase dispersed in the continuous phase. The crosslinker solution is added to the mixture such that the crosslinker reacts with the dispersed monomer. An aramide polymer forms on the interface of the droplets, forming the aramide capsule. The aramide capsule is settled and separated from the mixture, and is dried to form a free flowing powder. 1. A method for preparing a hardened mortar , the method comprising the steps of: mixing a continuous solvent and a surfactant to produce a continuous phase;', 'mixing a dispersed solvent and a dispersed monomer to produce a dispersed phase, where the dispersed solvent and the continuous solvent are immiscible;', 'mixing the continuous solvent and a crosslinker to produce a crosslinker solution;', 'mixing the continuous phase and the dispersed phase to form a mixture having an emulsion such that the dispersed phase is dispersed as droplets in the continuous phase, where an interface defines the droplets of the dispersed phase dispersed in the continuous phase;', 'adding the crosslinker solution to the mixture such that the crosslinker reacts with the dispersed monomer;', 'allowing an aramide polymer to form on the interface of the ...

VINYL ALCOHOL POLYMER AND PRODUCTION METHOD THEREOF, ADDITIVE FOR DRILLING MUD, DRILLING MUD, ADDITIVE FOR DRILLING CEMENT SLURRY, AND DRILLING CEMENT SLURRY

Provided by the present invention is a vinyl alcohol polymer crosslinked by a structure represented by the following formula (1) and/or a disulfide structure, in which the vinyl alcohol polymer is not completely dissolved in a mixture prepared by: adding the vinyl alcohol polymer to water so as to give a concentration of 4% by mass; and stirring at 95° C. for 3 hrs. in the formula (1), R, Rand Reach independently represent a hydrogen atom or a substituted or unsubstituted hydrocarbon group having 8 or less carbon atoms. Also provided include an additive for a drilling mud containing the vinyl alcohol polymer, a drilling mud containing the vinyl alcohol polymer as an additive, an additive for a drilling cement slurry containing the vinyl alcohol polymer, and a drilling cement slurry containing the vinyl alcohol polymer as an additive. 2. The vinyl alcohol polymer according to claim 1 , which is in a powdery form.3. The vinyl alcohol polymer according to claim 2 , which passes through a 10-mesh sieve according to JIS.4. The vinyl alcohol polymer according to claim 1 , which is the vinyl alcohol polymer crosslinked by the structure represented by the formula (1) claim 1 , wherein the structure represented by the formula (1) is formed by a reaction of an epoxy group and a mercapto group.5. The vinyl alcohol polymer according to claim 1 , which is the vinyl alcohol polymer crosslinked by the disulfide structure claim 1 , wherein the disulfide structure is formed by a coupling reaction of mercapto groups.6. A production method of the vinyl alcohol polymer according to claim 4 , wherein claim 4 , the method comprises a reacting step of a first vinyl alcohol polymer comprising an epoxy group on a side chain thereof with a first compound comprising at least two mercapto groups per molecule.7. A production method of the vinyl alcohol polymer according to claim 4 , wherein claim 4 , the method comprises a reacting step of a second vinyl alcohol polymer comprising a mercapto ...

METHOD FOR MONITORING CEMENT USING POLYMER-BASED CAPSULES

Embodiments provide a method for monitoring structural integrity of a hardened cement. An aramide capsule, a cement, and a water to form a cement slurry. The cement slurry is set to form a hardened cement, where the aramide capsule is embedded in the hardened cement. Imperfections of the hardened cement are detected by measuring electrical resistivity of the hardened cement. The aramide capsule is formed by interfacial polymerization using a surfactant, a dispersed monomer, a crosslinker such that a semi-permeable membrane is formed surrounding a core. 1. A method for monitoring structural integrity of a hardened cement , the method comprising the steps of: mixing a continuous solvent and a surfactant to produce a continuous phase;', 'mixing a dispersed solvent and a dispersed monomer to produce a dispersed phase, where the dispersed solvent and the continuous solvent are immiscible;', 'mixing the continuous phase and the dispersed phase to form a mixture having an emulsion such that the dispersed phase is dispersed as droplets in the continuous phase, where an interface defines the droplets of the dispersed phase dispersed in the continuous phase;', 'adding a crosslinker to the mixture;', 'allowing an aramide polymer to form on the interface of the droplets, such that the aramide polymer forms a semi-permeable membrane around a core, where the core contains the dispersed phase, such that the semi-permeable membrane around the core forms the aramide capsule;', 'allowing the aramide capsule to settle from the mixture;', 'separating the aramide capsule from the mixture using a separation method; and', 'drying the aramide capsule such that the core is hollow, where the aramide capsule exists as a free flowing powder;, 'mixing an aramide capsule, a cement, and a water to form a cement slurry, where the aramide capsule is formed by the steps ofallowing the cement slurry to set to form the hardened cement, where the aramide capsule is embedded in the hardened cement; ...

COPOLYMERS HAVING A GRADIENT STRUCTURE AS DISPERSANT FOR ALKALINICALLY ACTIVATED BINDING AGENTS

A copolymer as dispersant in a binder composition comprising an alkaline activating agent, wherein the activating agent is especially suitable for activation of a latently hydraulic and/or pozzolanic binder, wherein the copolymer has a polymer backbone and side chains bonded thereto and comprises at least one ionizable monomer unit M1 and at least one side chain-bearing monomer unit M2, and 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 binder composition comprising an organic and/or mineral binder , an alkaline activating agent , and a copolymer , as dispersant , 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 , 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 M2.2. The binder composition as claimed in claim 1 , wherein the binder comprises a latently hydraulic and/or pozzolanic binder.3. The binder composition as claimed in claim 1 , wherein the binder composition includes 5-95% by weight of latently hydraulic and/or pozzolanic binder claim 1 , and 5-95% by weight of hydraulic binder.4. The binder composition as claimed in claim 1 , wherein claim 1 , in the at least one section A of the copolymer claim 1 , a local concentration of the at least one ionizable monomer unit M1 increases continuously along the polymer backbone claim 1 , while a local concentration of the at least one side chain-bearing monomer unit M2 decreases continuously along the polymer backbone claim 1 , or vice versa.5. The binder composition as claimed in claim 1 , wherein the polydispersity of the copolymer is <1.5.6. The binder ...

REPAIR COMPOUND AND METHODS OF USE

A repair compound for use in all applications and particularly well-suited for large hole repair. The repair compound includes a latex resin, a thickener, fibers, and a filler material. In some embodiments, the repair compound is configured to exhibit pseudoplastic-type behavior. In some embodiments, the repair compound has a density of not greater than 4.0 lbs/gal. In some embodiments, the repair compound includes hydrophobic and hydrophilic fibers of different morphologies. In some embodiments, the repair compound includes HASE-type thickeners. In some embodiments, the repair compound includes a bimodal distribution of hollow glass microspheres from two different strength/size curves. 1. A repair compound comprising:a latex resin or resin binder;a thickener;hydrophobic fibrillated fibers and hydrophilic fibers wherein the fibers are synthetic fibers, and wherein the hydrophobic fibrillated fibers have a nominal length and the hydrophilic fibers have a nominal length and the hydrophobic fibrillated fiber nominal length is less than the hydrophilic fiber nominal length; anda filler material;wherein the repair compound exhibits pseudoplastic behavior.2. The repair compound of claim 1 , wherein the latex resin or resin binder is 100% acrylate.3. The repair compound of claim 1 , wherein the thickener includes at least one of polyethylene glycol claim 1 , polyethylene oxide claim 1 , polyethylene oxide/polypropylene oxide copolymers claim 1 , polyvinyl alcohol claim 1 , polymers or copolymers of ethylenically unsaturated carboxylic acids and their derivatives claim 1 , guar gum claim 1 , xanthan gum claim 1 , alginates claim 1 , tragacanth gum claim 1 , pectin claim 1 , amylopectin claim 1 , dextran claim 1 , polydextrose claim 1 , and polysaccharides and derivatives thereof.4. The repair compound of claim 1 , wherein the thickener is a hydrophilic alkali swellable emulsion present in an amount of about 1% by weight or less.5. The repair compound of claim 1 , wherein ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;a carrier fluid; anda plurality of polymer fibers.2. The LCM composition of claim 1 , wherein the plurality of polymer fibers comprises a plurality of polypropylene fibers.3. The LCM composition of claim 1 , wherein the plurality of polymer fibers each have a length in the range of 1 millimeters (mm) to 6 millimeters.4. The LCM composition of claim 1 , wherein the plurality of polymer fibers comprises a plurality of polyacrylonitrile fibers.5. The LCM composition of claim 1 , where the plurality of polymer fibers comprise an amount in the range of 0.25 weight of the total weight (w/w %) to 1.0 w/w %.6. The LCM composition of claim 1 , wherein the carrier fluid comprises at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.7. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker API Class G cement clinker.8. The LCM composition of claim 1 , comprising cement.9. The LCM composition of claim 8 , wherein the cement comprises ...

Polydicarboxylic acid based dispersant

A copolymer, in particular a dispersant for hydraulically setting binder compositions, including a specific dicarboxylic acid based subunit and a specific polyalkylene glycol based subunit wherein the molar ratio of the dicarboxylic acid based subunit to the polyalkylene glycol based subunit is from 1.5-4.

PREPARATION METHOD OF TEMPERATURE/PH-RESPONSIVE POLYCARBOXYLIC ACID

A preparation method of comb structure temperature/pH-responsive polycarboxylic acid adopts acrylic ester, temperature/pH-responsive monomer and other raw materials to obtain polycarboxylic acid via acrylate monomer self-polymerization, grafting with temperature/pH-responsive monomers and hydrolyzation. In other words, acrylate is used as the reaction monomer to polymerize polyacrylate with controllable molecular weight under the action of initiator and chain transfer agent, then the graft copolymers are copolymerized with temperature/pH-responsive monomers to obtain graft copolymers with acrylate polymers main chain and temperature/pH-responsive polymer side chains. Finally, the graft copolymer is hydrolyzed to obtain the comb structure temperature/pH-responsive polycarboxylic acid with polyacrylic acid main chain and temperature/pH-responsive monomer side chain. 1. A preparation method for synthesizing comb structure temperature/pH-responsive polycarboxylic acid via self-polymerization , grafting and hydrolysis , comprising the following steps:(1) self-polymerization:firstly, an organic solvent, acrylate and a chain transfer agent are added to a reactor, heating up to 50-120° C. with agitation; then introduce a mixture solution of an initiator and an organic solvent to the reactor by dropping for 1-12 hours, then a polyacrylate solution is obtained as a self-polymerization product by reacting at a constant temperature of 50-120° C. for 1-6 hours after the dropping is completed;(2) graft copolymerization:adjust the temperature of the self-polymerization product obtained in step (1) to 50-100° C., a molecular weight regulator is added with 15-40 minutes agitation until the mixture is evenly mixed; then add a temperature/pH-responsive monomer and the mixture solution of the initiator and the organic solvent by dropping for 1-12 hours; after the dropping is completed, reaction is conducted at a constant temperature of 50-100° C. for 1-6 hours to obtain a graft ...

CEMENT HAVING CROSS-LINKED POLYMERS

A wellbore cement composition that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition. 1. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine.2. The cement composition of claim 1 , where the diamine is selected from the group consisting of ethylenediamine claim 1 , 1 claim 1 ,3-diaminobenzene claim 1 , 1 claim 1 ,4-diaminobenzene claim 1 , 1 claim 1 ,6-diaminohexane claim 1 , 1 claim 1 ,4-phenylenediamine claim 1 , and combinations.3. The cement composition of claim 1 , where the polyaramide condensate comprises about 3% by weight of the cement. This application is a continuation of and claims priority to and the benefit of co-pending U.S. patent application Ser. No. 15/701,670 filed Sep. 12, 2017, which claimed priority from U.S. Provisional Application Ser. No. 62/397,126 filed Sep. 20, 2016, the full disclosures of which are incorporated by reference in their entireties and for all purposes.The present disclosure relates to a cement, and method of making the cement, that bonds casing to a wellbore. More specifically, the present disclosure relates to a cement, and method of making the cement, that bonds casing to a wellbore, and that includes cross-linked polymers.Hydrocarbons that are produced from subterranean formations typically flow from the formations to surface via wellbores drilled from surface that intersect the formations. Most wellbores are lined with casing and strings of production tubing inserted within the casing that are for conveying ...

METAL-BASED HYDROGEN SULFIDE SCAVENGER AND METHOD OF PREPARING SAME

The present disclosure is related to a family of oil-based dispersions of organic and inorganic metal compounds for use as a hydrogen sulfide scavenger in asphalt, and the preparation thereof. These dispersions comprise organic and inorganic metal compounds, organic solvents, an organoclay suspension agent, an emulsifier and optionally a polymeric stabilizer. The organic and inorganic metal compounds are in the form of micron-sized particles. Copper-based dispersions are particularly effective at reducing the hydrogen sulfide emission of asphalt in the presence of polyphosphoric acid. 1. A composition comprising: asphalt or asphalt mix; and a dispersion of a hydrogen sulfide scavenger in an organic solvent , wherein the dispersion further comprises an organoclay suspension agent and an emulsifier.2. The composition of claim 1 , wherein the dispersion of the hydrogen sulfide scavenger further comprises a polymeric stabilizer.3. The composition of claim 1 , wherein the hydrogen sulfide scavenger comprises a copper based compound.4. The composition of claim 1 , wherein polyphosphoric acid is present in the asphalt or asphalt mix.5. The composition of claim 3 , wherein the copper-based compound is selected from the group consisting of Caesium hexafluorocuprate(IV) claim 3 , Calcium copper titanate claim 3 , Chlorophyllin claim 3 , Chromated copper arsenate claim 3 , Copper aspirinate claim 3 , Copper benzoate claim 3 , Copper chromite claim 3 , Copper gluconate claim 3 , Copper hydride claim 3 , Copper ibuprofenate claim 3 , Copper indium gallium selenide claim 3 , Copper monosulfide claim 3 , Copper oxide claim 3 , Copper peptide GHK-Cu claim 3 , Copper peroxide claim 3 , Copper salicylate claim 3 , Copper selenide claim 3 , Copper silicide claim 3 , Copper sulfide claim 3 , Copper usnate claim 3 , Copper(I) acetylide claim 3 , Copper(I) bromide claim 3 , Copper(I) chloride claim 3 , Copper(I) cyanide claim 3 , Copper(I) fluoride claim 3 , Copper(I) hydroxide claim 3 , ...

Ampholyte Polymeric Compounds in Subterranean Applications

Ampholyte polymeric compounds that comprise at least one nonionic monomer, at least one sulfonic acid-containing monomer, and at least one cationic monomer may be useful as friction reducing agents in treatment fluids for use in subterranean operations at a concentration of about 0.001 v/v % to about 0.5 v/v % of the treatment fluid. Such operations may involve introducing the treatment fluid into a wellbore penetrating a subterranean formation optionally at a rate and/or a pressure sufficient to create or extend at least one fracture in the subterranean formation.

Ampholyte polymers and methods of treating subterranean formations with the same

Various embodiments disclosed relate to a composition including a crosslinkable ampholyte polymer or a crosslinked product of the same, methods of making and using the composition, and systems including the composition. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a crosslinkable ampholyte polymer. The crosslinkable ampholyte polymer can include an ethylene repeating unit including a —C(O)NH 2 group, an ethylene repeating unit including a —S(O) 2 OR 1 group, and an ethylene repeating unit comprising an —N + R 2 3 X − group. At each occurrence, R 1 can be independently selected from the group consisting of —H and a counterion. At each occurrence, R 2 can be independently substituted or unsubstituted (C 1 -C 20 )hydrocarbyl. At each occurrence, X − can be independently a counterion. The composition can also include at least one crosslinker. The method can include placing the composition in a subterranean formation.

PRODUCTION OF DISPERSANTS BY LIVING RADICAL POLYMERIZATION

A method for producing a dispersant for solid particles, in particular a dispersant for mineral binder compositions. Ionizable monomers m1 and sidechain-carrying monomers m2 are polymerized to a copolymer, polymerization taking place as a living free radical polymerization. 1. A process for preparing a dispersant for solid particles , wherein ionizable monomers m1 and side chain-bearing monomers m2 are polymerized to give a copolymer , wherein the polymerization is effected by a living free-radical polymerization.2. The process as claimed in claim 1 , wherein the polymerization is effected by reversible addition-fragmentation chain-transfer polymerization (RAFT).3. 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 essentially in at least one second block B.4. The process as claimed in claim 3 , wherein any proportion of monomers m1 present in the first block A is less than 25 mol % based on all the monomers m2 in the first block A claim 3 , and wherein any proportion of monomer units m2 present in the second block B is less than 25 mol % based on all the monomer units m1 in the second block B.5. 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.6. The process as claimed in claim 1 , wherein claim 1 , in a first step a) claim 1 , at least a portion of the side chain-bearing monomers m2 is reacted or polymerized and claim 1 , on attainment of a particular conversion claim 1 , in a second step b) claim 1 , the ionizable monomers m1 are polymerized claim 1 , optionally together with any as yet unconverted side chain-bearing monomers m2.7. The process as claimed in claim 6 , wherein step a) is effected in the absence of ...

Pervious concrete having a super-absorbent polymer

A pervious concrete composition comprising a superabsorbent polymer, thereby enabling a water/cement ratio of 0.35-0.50. The superabsorbent polymer can be a cross-linked sodium polyacrylate-acrylamide/acrylic acid copolymer. The invention further comprises methods of installing the pervious concrete compositions.

Acidizing compositions including ampholyte polymers

Various embodiments disclosed relate to acidizing compositions including an ampholyte polymer. Various embodiments provide a method of treating a subterranean formation. The method can include placing in a subterranean formation an ampholyte polymer including an ethylene repeating unit including a —C(O)NH 2 group, an ethylene repeating unit including an —S(O) 2 OR 1 group, and an ethylene repeating unit including an —N + R 2 3 X − group. At each occurrence, R 1 can be independently selected from the group consisting of —H and a counterion. At each occurrence, R 2 can be independently substituted or unsubstituted (C 1 -C 20 )hydrocarbyl. At each occurrence, X − can be independently a counterion.

BLOCK COPOLYMERS AS DISPERSANTS FOR ALKALI-ACTIVATED BINDERS

The invention relates to a block copolymer for use as a dispersant for mineral binder compositions, containing an alkali activating agent. Said block copolymer comprises at least one first block A and at least one second block B, the first block A containing a monomeric unit M1 and the second block B containing a monomeric unit M2. A proportion of monomeric units M2, if any, in the first block A is less than 25 mol %, in particular less than or equal to 10 mol %, relative to all the monomeric units M1 in the first block A, and a proportion of monomeric units M1, if any, in the second block B is less than 25 mol %, in particular less than or equal to 10 mol %, relative to all the monomeric units M2 in the second block B. 2. The method as claimed in claim 1 , wherein the at least one first block A of the block copolymer P comprises 5-70 monomer units M1 and/or wherein the at least one second block B of the block copolymer P comprises 5-70 monomer units M2.3. The method as claimed in claim 1 , wherein the first block A of the block copolymer P comprises 25-35 monomer units M1 and/or wherein the at least one second block B of the block copolymer P comprises 10-20 monomer units M2.4. The method as claimed in claim 1 , wherein the block copolymer P has a molar ratio of the monomer units M1 to the monomer units M2 in the range of 0.5-6.5. The method as claimed in claim 1 , wherein the first block A of the block copolymer P consists to an extent of at least 20 mol % based on all the monomer units in the first block A claim 1 , of monomer units M1 of the formula I claim 1 , and/or wherein the second block B of the at least one block copolymer P consists to an extent of at least 20 mol % based on all the monomer units in the second block B claim 1 , of monomer units M2 of the formula II.7. The method as claimed in claim 1 , wherein in the block copolymer P claim 1 , Ris —COOM; Rand R claim 1 , independently of one another claim 1 , are H claim 1 , —CHor mixtures thereof; Rand ...

COPOLYMERS HAVING PHOSPHORUS GROUP-CARRYING MONOMERIC UNITS

A copolymer, in particular a dispersant for solid particles, in particular a dispersant for mineral binder compositions, including a polymer backbone and sidechains bound thereto. Said copolymer includes at least one phosphorus group-carrying monomeric unit M1 and at least one sidechain-carrying monomeric unit M2, the copolymer having, in a direction along the polymer backbone, a non-random distribution of the monomeric units M1 and/or of the monomeric units M2. 1. A copolymer having a polymer backbone and side chains bonded thereto , comprising at least one phosphorus group-bearing monomer unit M1 and at least one side chain-bearing monomer unit M2 , wherein the copolymer has a nonrandom distribution of the monomer units M1 and/or the monomer units M2 in a direction along the polymer backbone.2. The copolymer as claimed in claim 1 , wherein the copolymer has a gradient structure and/or a block structure in at least one section.3. The copolymer as claimed in claim 1 , wherein the phosphorus group-bearing monomer unit M1 is based on a (meth)acrylic ester claim 1 , (meth)acrylamide claim 1 , vinyl ether claim 1 , allyl ether claim 1 , methallyl ether and/or isoprenyl ether claim 1 , each comprising a phosphoric acid group and/or a phosphonic acid group.6. The copolymer as claimed in claim 1 , wherein the copolymer is a block copolymer claim 1 , wherein the phosphorus group-bearing monomer unit M1 is present essentially in at least one first block A and the side chain-bearing monomer unit M2 essentially in at least one second block B.7. The copolymer as claimed in claim 1 , wherein the copolymer has a gradient structure in at least one section AA in a direction along the polymer backbone with respect to the phosphorus group-bearing monomer unit M1 and/or with respect to the side chain-bearing monomer unit M2.8. The copolymer as claimed in claim 7 , wherein the copolymer claim 7 , in addition to the at least one section AA having a gradient structure claim 7 , has a ...

FLUIDITY-RETAINING AGENT FOR HYDRAULIC COMPOSITIONS, COMPATIBLE WITH A WATER-REDUCING AGENT OF THE COMB POLYMER TYPE

The present invention relates to the technical field of hydraulic compositions, for example concrete and mortar compositions. More precisely, the present patent application relates to a slump retaining agent which is compatible with a water-reducing agent of hydrophilic comb polymer type. 1. A slump retaining agent for a hydraulic composition , which consists of a copolymer obtained by polymerization of:a) at least one anionic monomer comprising a polymerizable unsaturated function and a carboxylic group, [{'br': None, 'sub': f', 'm', 'n', 'p', 'f, 'R-[(EO)-(PO)-(BO)]-R′ \u2003\u2003(I)'}, 'in which:', {'sub': m', 'n', 'p, '[(EO)-(PO)-(BO)] represents at least one polyalkoxylated chain consisting of alkoxylated units, arranged in blocks, randomly or alternatively, selected from the group consisting of ethoxylated units EO, propoxylated units PO and butoxylated units BO,'}, 'm, n and p represent, independently of each other, 0 or an integer ranging from 1 to 250 (inclusive), the sum of m, n and p being between 10 and 250,', {'sub': 'f', 'Rrepresents a radical containing a polymerizable unsaturated function and'}, {'sub': 'f', 'R′ represents hydrogen or an alkyl group containing from 1 to 4 carbon atoms and'}], 'b) at least one macromonomer having a formula (I) wherein said copolymer has a molecular weight of greater than 400,000 g/mol as determined by SEC; and', 'wherein said slump retaining agent is not a water reducing agent according to standard ADVJUVANT NF EN 934.2., 'c) at least one nonionic cross-linking monomer comprising at least two polymerizable unsaturated functions and an ester group,'}2. The slump retaining agent according to claim 1 , according to which the monomers a) are at least one selected from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , maleic acid claim 1 , itaconic acid claim 1 , crotonic acid and a mixture of these monomers.3. The slump retaining agent according to claim 1 , according to which the polymerizable ...

SEQUENCED POLYMERS FOR MONITORING THE FILTRATE AND THE RHEOLOGY

The present invention relates to the use of a sequenced polymer as an agent for monitoring the filtrate and the rheology of a fluid injected under pressure into an oil rock, wherein the fluid comprises solid particles and/or is brought into contact with solid particles within the oil rock after being injected, the polymer comprising: a first block which is adsorbed onto at least some of the particles; and a second block having a composition other than that of the first block and a mean molecular weight of more than 10,000 g/mol, for example more than 100,000 g/mol, and which is soluble in the fluid. 1. A process comprising injecting a fluid (F) under pressure into a subterranean formation ,wherein said fluid (F) comprises solid particles (p) and/or is brought into contact with solid particles (p) within the subterranean formation subsequent to its injection, a first block (A) which is adsorbed on at least a portion of the particles (p); and', 'a second block (B) with a composition distinct from that of said first block (A), with a weight-average molecular weight of greater than 10 000 g/mol, and which is soluble in the fluid (F)., 'and a fluid loss control and rheology agent, wherein the fluid loss control and rheology agent is a block polymer (P) comprising2. The process claimed in claim 1 , wherein the polymer has a weight-average weight of greater than 500 000 g/mol and reduces or inhibits the sedimentation of the particles while providing a fluid loss control effect.3. The process claimed in claim 1 , wherein the polymer has a weight-average weight of less than 200 000 g/mol and reduces the viscosity of the fluid while providing a fluid loss control effect.4. The process claimed in claim 1 , wherein the injected fluid (F) does not comprise solid particles (p) claim 1 , and encounters said particles (p) within the subterranean formation subsequent to its injection.5. The process claimed in claim 1 , wherein the injected fluid (F) comprises claim 1 , before the ...

USE OF COMB POLYMERS FOR CONTROLLING THE RHEOLOGY OF MINERAL BINDER COMPOSITIONS

A comb polymer is used for increasing the flow rate and/or reducing the viscosity of a mineral binder composition, where the comb polymer has a main chain including acid groups and there are pendent chains linked to the main chain, and where the average number-average molar mass of all of the pendent chains is from 120 to 1000 g/mol and the molar ratio of the acid groups to the side chains is in the range from 0.5 to 2. 1. A process comprising: 'a main chain comprising acid groups, and side chains attached on the main chain, where a number-average molecular weight (Mn) of all side chains in a range of from 120-1000 g/mol, and a molar ratio of the acid groups to the side chains in the range of from 0.5-2; and', 'obtaining a comb polymer having 'the comb polymer is mixed into the binder composition in an amount sufficient to increase the flow rate and/or reduce the viscosity of the mineral binder composition relative to an analogous mineral binder composition that does not contain the comb polymer, the amount of the comb polymer also being effective to keep the yield point and/or the slump flow of the binder composition from deviating by less than 15% from that of the analogous mineral binder composition.', 'mixing the comb polymer, a mineral binder and water to form a mineral binder composition; wherein'}2. The process according claim 1 , wherein the amount of the comb polymer is effective to keep the yield point and/or the slump flow of the binder composition from deviating by less than 1% from that of the analogous mineral binder composition.3. The process according claim 1 , wherein the molar ratio of the acid groups to the side chains is in the range of from 0.75-1.7.4. The process according claim 1 , wherein the molar ratio of the acid groups to the side chains is in the range of from 0.85-1.5.5. The process according claim 1 , wherein the side chains are bonded to the main chain via ester claim 1 , ether claim 1 , amide and/or imide groups.6. The process ...

CONTINUOUS ESTERIFICATION AND/OR AMIDIFICATION METHOD, WITHOUT ORGANIC SOLVENT, OF AN ACID HOMOPOLYMER OR COPOLYMER

The present invention relates to a continuous process for preparing a comb polymer, without organic solvent, by esterification and/or amidification of an acidic homopolymer or copolymer, which consists in performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in the mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid or molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature greater than or equal to 170° C. 1. A continuous process for preparing a comb polymer , without organic solvent , by esterification and/or amidification of an acidic homopolymer or copolymer , the process comprising:performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in a mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid form or in molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature of greater than or equal to 170° C., optionally in the presence of an esterification and/or amidification catalyst, optionally at reduced pressure and/or under a stream of inert gas.2. The continuous process according to claim 1 , wherein said acidic homopolymer or copolymer results from the polymerization or copolymerization of at least one of the monomers chosen from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , itaconic acid claim 1 , crotonic acid claim 1 , fumaric acid and maleic anhydride.3. The continuous process according to claim 1 , according to which said poly(alkylene glycol) has a formula (I):{'br': None, 'sub': 'A', 'R-A-OH \u2003\u2003(I)'}wherein: [{'sub': 2', '4', '4, 'm alkylene oxide units of formula —O—CH—CHR— with ...

System and method for producing in-situ foam

An in-situ foam system and process comprises the components one or more inorganic fillers A) at from 50 to 98 wt %, one or more cationic or amphoteric polymers B) at from 1 to 48 wt %, one or more surfactants C) at from 0.5 to 48 wt %, one or more crosslinkers D) capable of reacting with said polymers B) at from 0.01 to 5 wt %, one or more cell regulators E), selected from silicones, siliconates and carbon, at from 0.5 to 10 wt %, one or more additives F) at from 0 to 20 wt %, wherein the weight percentages of said components A) to F) are based on the nonaqueous fractions and the sum total of A) to F) adds up to 100 wt %.

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement; anda carrier fluid, wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum, xanthan gum, and welan gum.2. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.3. The LCM composition of claim 1 , wherein the weight ratio of carrier fluid to cement clinker is 1:1.4. The LCM composition of claim 1 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.5. The LCM composition of claim 1 , comprising a plurality of polymer fibers.6. The LCM composition of claim 5 , wherein the polymer fibers comprise polypropylene fibers.7. The LCM composition of claim 1 , comprising particulate glass having an aspect ratio greater than or less than 1.8. The LCM composition of claim 7 , wherein the particulate glass comprises a plurality of glass fibers or a plurality of glass flakes. This application is a continuation of and claims ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement, wherein the cement comprises API Class G cement; anda carrier fluid.2. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.3. The LCM composition of claim 1 , wherein the weight ratio of carrier fluid to cement clinker is 1:1.4. The LCM composition of claim 1 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.5. The LCM composition of claim 1 , comprising a plurality of polymer fibers.6. The LCM composition of claim 5 , wherein the polymer fibers comprise polypropylene fibers.7. The LCM composition of claim 1 , comprising particulate glass having an aspect ratio greater than or less than 1.8. The LCM composition of claim 7 , wherein the particulate glass comprises a plurality of glass fibers or a plurality of glass flakes. This application is a continuation of and claims priority from U.S. Non-provisional application Ser. No. 15/962,720 filed Apr. 25, ...

Cement Having Cross-Linked Polymers

A composition and method of forming a wellbore cement that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition.

DISPERSANT FOR CALCIUM SULPHATE-BASED COMPOSITIONS

The present invention relates to the use of a copolymer as a dispersant for binder compositions based on calcium sulfate, the copolymer having a polymer backbone and sidechains bound thereto, and at least one ionizable monomeric unit M1 and at least one sidechain-carrying monomeric unit M2, characterized in that the copolymer has, in a direction along the polymer backbone, a non-random distribution of the monomeric units M1 and/or of the monomeric units M2. 1. A method comprising applying a copolymer as dispersant for binder compositions based on calcium sulfate , wherein the copolymer comprises a polymer backbone and side chains bonded thereto and there are at least one ionizable monomer unit M1 and at least one side chain-bearing monomer unit M2 , wherein the copolymer has a nonrandom distribution of the monomer units M1 and/or the monomer units M2 in a direction along the polymer backbone.2. The method as claimed in claim 1 , wherein the copolymer has a gradient structure and/or a block structure in at least one section.5. The method as claimed in claim 1 , wherein the copolymer is a block copolymer claim 1 , wherein the ionizable monomer unit M1 is present essentially in at least one first block A and the side chain-bearing monomer unit M2 essentially in at least one second block B.6. The method as claimed in claim 1 , wherein the copolymer has a gradient structure in at least one section AA in a direction along the polymer backbone with respect to the ionizable monomer unit M1 and/or with respect to the side chain-bearing monomer unit M2.7. The method as claimed in claim 6 , wherein the copolymer claim 6 , in addition to the at least one section AA having a gradient structure claim 6 , has a further section AB claim 6 , wherein there is essentially a constant local concentration of the monomers and/or a statistical or random distribution of the monomers over the entire section AB.8. The method as claimed in claim 1 , wherein the polydispersity of the copolymer ...

Cement Having Cross-Linked Polymers

A wellbore cement composition that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition. 1. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine, where the polyaramide condensate compound comprises poly-(meta-phenylene trimesoylamide).2. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine, where the polyaramide condensate compound comprises poly-(para-phenylene trimesoylamide.3. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine, where the polyaramide condensate compound comprises poly(hexamethylene trimesoylamide). This application is a continuation of and claims priority to and the benefit of co-pending U.S. patent application Ser. No. 15/701,670 filed Sep. 12, 2017, which claimed priority from U.S. Provisional Application Serial No. 62/397,126 filed Sep. 20, 2016, the full disclosures of which are incorporated by reference in their entireties and for all purposes.The present disclosure relates to a cement, and method of making the cement, that bonds casing to a wellbore. More specifically, the present disclosure relates to a cement, and method of making the cement, that bonds casing to a wellbore, and that includes cross-linked ...

CEMENT HAVING CROSS-LINKED POLYMERS

A wellbore cement composition that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition. 1. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine, where the polyaramide comprises poly(hexamethylene-co-sebacoyl trimesoylamide).2. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine, where the polyaramide comprises a blend of poly-(meta-phenylene trimesoylamide) and poly(hexamethylene trimesoylamide).3. The cement composition of claim 2 , where the blend of poly-(meta-phenylene trimesoylamide) and poly(hexamethylene trimesoylamide) comprises a 1:1 ratio. This application is a continuation of and claims priority to and the benefit of co-pending U.S. patent application Ser. No. 15/701,670 filed Sep. 12, 2017, which claimed priority from U.S. Provisional Application Ser. No. 62/397,126 filed Sep. 20, 2016, the full disclosures of which are incorporated by reference in their entireties and for all purposes.The present disclosure relates to a cement, and method of making the cement, that bonds casing to a wellbore. More specifically, the present disclosure relates to a cement, and method of making the cement, that bonds casing to a wellbore, and that includes cross-linked polymers.Hydrocarbons that are produced from subterranean formations typically flow from the formations to surface via wellbores ...

CONDITIONED CURING SYSTEMS AND PROCESSES THEREOF

The invention provides novel apparatus and processes for gas flow and conditioning to achieve optimal COcuring of articles of composite materials (e.g., precast objects made of carbonatable calcium silicate-based cements), with solid interior or having hollow interior ducts, channels and chambers or otherwise being hollowed out, as well as the precast objects so made, which are suitable for a variety of applications in construction, pavements and landscaping, and infrastructure. 1. A process for curing a precast object , comprising:introducing the precast object into an envelope that is capable of containing a gas, wherein the envelope is sealed or vented; introducing a gas at a first condition into the envelope,', 'flowing the gas over a surface of the precast object inside the envelope to bring the gas to a second condition,', 'passing the gas at the second condition through a primary gas conditioning system to restore the gas to its first condition, and', 'recirculating the gas into the primary gas circulation loop;, 'providing a primary gas circulation loop, comprising taking the gas in the envelope at a third condition,', 'passing it through a secondary gas conditioning system to condition it to a fourth condition, and', 'flowing the gas after conditioning to the fourth condition over at least another surface of the precast object; and, 'providing one or more secondary gas circulation loop, wherein the secondary gas circulation loop comprisescuring the precast object for a time sufficient to produce a cured precast object.2. The process of claim 1 , wherein the precast object is made of a carbonatable calcium silicate-based cement and the gas is carbon dioxide.3. The process of claim 1 , wherein at least one of the secondary gas conditioning system of the secondary gas circulation loop is located within the envelope.4. The process of claim 2 , comprising providing a plurality of secondary gas circulation loops.57-. (canceled)8. The process of claim 1 , wherein ...

CEMENTING A WELLBORE USING CEMENTING MATERIAL ENCAPLSULATED IN A SHELL

A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe. 124-. (canceled)25. A method of cementing a wellbore penetrating an earth formation into which a conduit extends , said wellbore having a space between the wellbore and the conduit , comprising the steps of:circulating a drilling mud containing a setting material encapsulated in capsules through the conduit into the space between the wellbore and the conduit wherein said capsules have a shell with embedded particles of energetic material, andreleasing said setting material encapsulated in capsules from said capsules into the space between the wellbore and the conduit thereby cementing the wellbore, wherein said step of releasing said setting material encapsulated in capsules from said capsules comprises using a shock signal for igniting said particles of energetic material embedded in said shell of said capsules thereby breaching said shell and releasing said setting material from said capsules. The present application is a Division of U.S. application Ser. No. 14/055,800 filed Oct. 16, 2013, the disclosure of which is hereby incorporated by reference in its entirety for all purposes.The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.Field ...

COVALENTLY CROSS-LINKED LIGNOCELLULOSIC COMPOSITES AND APPLICATIONS THEREOF

In one aspect, composite polymeric composition and related materials are described herein employing waste products from the agricultural and energy industries. Such composite polymeric compositions and materials can repurpose agricultural and petroleum waste products for various applications including, but not limited to, building and/or infrastructure materials. In some embodiments, a composite polymeric composition described herein comprises polysaccharides, lignin or combinations thereof covalently cross-linked via linkages comprising sulfur. 1. A composite polymeric composition comprising:polysaccharides covalently cross-linked via linkages comprising sulfur.2. The composite polymeric composition of claim 1 , wherein the polysaccharides are formed of cellulose claim 1 , cellulose derivative or mixtures thereof.3. The polymeric composition of claim 1 , wherein the polysaccharides comprise one or more hemicelluloses.4. The polymeric composition of claim 1 , wherein the polysaccharides comprise amylose claim 1 , amylopectin or mixtures thereof.5. The polymeric composition of claim 1 , wherein sulfur is present in an amount of 5 weight percent to 85 weight percent of the composite polymeric composition.6. A composite polymeric composition comprising:lignin polymers covalently cross-linked via linkages comprising sulfur.7. The composite polymeric composition of claim 6 , wherein the cross-linked lignin polymers form a matrix.8. The composite polymeric composition of further comprising a biopolymer or synthetic polymer component embedded in the matrix.9. The composite polymeric composition of claim 8 , wherein the biopolymer component comprises one or more polysaccharides.10. The composite polymeric composition of claim 9 , wherein the polysaccharides comprise cellulose claim 9 , hemicellulose or mixtures thereof.11. The composite polymeric composition of claim 9 , wherein polysaccharide chains are covalently cross-linked via linkages comprising sulfur.12. The ...

SELF-DESICCATING, DIMENSIONALLY-STABLE HYDRAULIC CEMENT COMPOSITIONS WITH ENHANCED WORKABILITY

Cementitious binder compositions for cementitious products including a hydraulic cement-based reactive powder blend, an inorganic flow control agent, and a metal-based dimensional movement stabilizing agent including at least one member of the group of lithium salt and lithium base, and methods for making the cementitious binder compositions. 1. A cementitious composition comprising a reaction product of a mixture of: an aluminate cement selected from at least one member of the group consisting of calcium aluminate cement and calcium sulfoaluminate cement in an amount of 30-75 parts by weight per 100 parts by weight of the hydraulic cement-based reactive powder,', 'Portland cement in an amount of 5-35 parts by weight per 100 parts by weight of the hydraulic cement-based reactive powder, and', 'a calcium sulfate selected from the group consisting of calcium sulfate dihydrate, calcium sulfate hemihydrate, anhydrous calcium sulfate and mixtures thereof, the calcium sulfate in an amount of 20-40 parts by weight per 100 parts by weight of the hydraulic cement-based reactive powder;, 'a hydraulic cement-based reactive powder comprisingan inorganic flow control agent in a weight ratio of inorganic flow control agent to hydraulic cement-based reactive powder of 0.5:1 to 2.0:1, wherein the inorganic flow control comprises at least one member selected from the group consisting of fly ash and calcium carbonate and wherein average particle size of the calcium carbonate ranges from about 10 to 150 microns;a metal-based dimensional movement stabilizing agent in an amount equal to 1.0 to 4.0 weight percent of the hydraulic cement-based reactive powder, wherein the metal-based dimensional movement stabilizing agent comprises a lithium compound selected from at least one member of the group of lithium salt and lithium base, wherein the lithium salt is at least one member of the group of lithium carbonate, lithium sulfate, lithium nitrate, lithium nitrite, and lithium silicate, ...