101 |
Refractory castables with hydrophobic aggregates |
US14710809 |
2015-05-13 |
US09227881B2 |
2016-01-05 |
Kenneth J. Moody; Bryan K. Doerr |
Hydrophobic aggregates for use in refractory castables and gunning mixtures and methods of their preparation. The aggregates here are formed by crushing insulating fire brick and coating the resulting particles with a hydrophobic component. The hydrophobic component may be a polydimethylsiloxane having a terminal silanol group. As a result of the coating process, the coated aggregate has very low levels of alkalis. The aggregates may be used to form refractory castables that do not undergo substantial alkaline hydrolysis due to the reduced levels of alkalis. The castables made from these aggregates display superior physical properties, including lower water content, lower permanent linear change, high strength, and superior thermal conductivity/insulation properties, while at the same time possessing lower density and requiring less water to be used during castable formation. These improved properties also are observed in gunning mixtures formed from these aggregates. |
102 |
Hydrophobically associating copolymers |
US14323324 |
2014-07-03 |
US09163103B2 |
2015-10-20 |
Roland Reichenbach-Klinke; Thomas Pfeuffer; Kati Schmidt; Thomas Ostrowski; Reinhold J. Leyrer; Yulia Fogel; Stefan Friedrich; Peter Gaeberlein; Andrea Orleans; Manfred Schuhbeck; Marcus Guzmann; Marcus Rösch; Bjorn Langlotz |
Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms. |
103 |
CEMENTING FLUID AND METHODS FOR PRODUCING THE SAME |
US14578642 |
2014-12-22 |
US20150191642A1 |
2015-07-09 |
Tuyen T. Nguyen; Cuiyue Lei; Hong Yang; Bilal S. Marie |
The presently disclosed and/or claimed inventive concept(s) relates generally to a cementing fluid for use in high temperature wellbore application. More particularly, the presently disclosed and/or claimed inventive concept(s) relates to a cementing fluid comprising an aqueous fluid, a hydraulically-active cementitous material, and a suspending agent, wherein the suspending agent is a high molecular weight hydrophobic copolymer or a cross-linked hydrophobic copolymer particulate. Additionally, the presently disclosed and/or claimed inventive concept(s) relates generally to the methods of making the cementing fluid containing the suspending agent. |
104 |
Hydrophobically associating copolymers |
US13680528 |
2012-11-19 |
US08783356B2 |
2014-07-22 |
Roland Reichenbach-Klinke; Thomas Pfeuffer; Kati Schmidt; Thomas Ostrowski; Reinhold J. Leyrer; Yulia Fogel; Stefan Friedrich; Peter Gaeberlein; Andrea Orleans; Manfred Schuhbeck; Marcus Guzmann; Marcus Rösch; Bjorn Langlotz |
Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms. |
105 |
Mineral composite panel and its production process |
US13625252 |
2012-09-24 |
US08733062B2 |
2014-05-27 |
Dawood Karimi Aqdam; Behzad Aqa Mohammadi |
The various embodiments herein provide a prefabricated mineral composite panel and a method for producing the prefabricated mineral composite panel for constructing the internal walls and the lateral walls in a building. The method comprising the steps of: preparing and assembling a cast, fixing a mesh in the cast, pouring a prefabricated mineral composite into the cast, smoothening and flattening a top surface of the cast, disassembling the cast to withdraw a semi-dried prefabricated mineral composite panel, placing the semi-dried prefabricated mineral composite panel in a drying room for drying the prefabricated mineral composite, removing the dried prefabricated mineral composite panel from the drying room and packaging the prefabricated mineral composite panel. |
106 |
SURFACE TREATMENT OF CEMENTITIOUS SUBSTRATES |
US13640947 |
2011-04-06 |
US20130029142A1 |
2013-01-31 |
Armin Hoffmann; Juergen Bezler; Stefan Bonimeier |
The invention provides for the use of dry building materials comprising one or more polymers in the form of water-redispersible powders, and optionally mineral binders, optionally fillers and optionally additives, for the surface treatment of cementitious substrates that are as yet not fully set. |
107 |
Acid-resistant, hydraulically setting masses |
US13141289 |
2009-12-15 |
US20110257304A1 |
2011-10-20 |
Harald Zeh; Jürgen Bezler; Stefan Bonimeier; Armin Hoffman; Hermann Lutz |
The invention relates to acid-resistant, hydraulically setting masses based on a) slag sand, b) one or more pozzolanas, c) one or more fillers, d) one or more polymers based on ethylenically unsaturated monomers, and water. |
108 |
METHODS TO CONTROL FLUID LOSS IN A WELL BORE |
US12550999 |
2009-08-31 |
US20110053807A1 |
2011-03-03 |
Mohan K.R. Panga; Isabelle Couillet; Carlos Abad |
The invention discloses a method of controlling fluid loss from a subterranean formation of a well bore. In a first aspect, the method is done by providing a treatment fluid made of an aqueous fluid and a hydrophobic polymer; and introducing the treatment fluid into the wellbore. In a second aspect, the method is done by providing a treatment fluid made of water and a water soluble polymer; providing in the treatment fluid a fluid loss additive having a hydrophobic polymer; using the treatment fluid in a well bore of a subterranean formation; allowing the treatment fluid to establish a permeable filter cake with the water soluble polymer in at least a portion of the well bore; and allowing hydrophobic polymer to enter into the filter cake to reduce permeability of the filter cake. |
109 |
Addition of nonionic surfactants to water soluble block copolymers to increase the stability of the copolymer in aqueous solutions containing salt and/or surfactants |
US12253934 |
2008-10-17 |
US07789160B2 |
2010-09-07 |
Lawrence Alan Hough; Gilda Maria Lizarraga; Herve Adam; Jean-Christophe Castaing; Subramanian Kesavan |
An aqueous fluid useful for the recovery of crude oil from a subterranean formation, which includes a composition including a mixture of water, a water soluble block copolymer, an inorganic salt and at least one member of the group of a nonionic surfactant having an HLB of less than 12, and methods for using same. |
110 |
Cement compositions comprising particulate carboxylated elastomers and associated methods |
US11321113 |
2005-12-29 |
US07650940B2 |
2010-01-26 |
B. Raghava Reddy; Krishna M Ravi |
Methods of cementing comprising: providing a cement composition comprising water, a cement, and a particulate elastomer comprising a carboxy group; and allowing the cement composition to set. Cement compositions comprising water, a cement, and a particulate elastomer comprising a carboxy group. |
111 |
Foamed cement slurry |
US11230641 |
2005-09-21 |
US07435768B2 |
2008-10-14 |
Eric Lecolier; Annie Audibert; Alain Rivereau |
The present invention relates to a formulation of a foamed cement slurry comprising in combination: at least one hydraulic binder from the group consisting of class G Portland cements, class H Portland cements, aluminous cements whose alumina content is at least above 30% by mass, sulfoaluminous cements and plasters, water whose proportion ranges between 20% and 60% by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 1% and 20% by mass in relation to the mass of hydraulic binder, the foaming agent being a hydrosoluble polymer comprising hydrophobic links, or a mixture of such polymers. |
112 |
Foamed cement slurry |
US11230641 |
2005-09-21 |
US20060217463A1 |
2006-09-28 |
Eric Lecolier; Annie Audibert; Alain Rivereau |
The present invention relates to a formulation of a foamed cement slurry comprising in combination: at least one hydraulic binder from the group consisting of class G Portland cements, class H Portland cements, aluminous cements whose alumina content is at least above 30% by mass, sulfoaluminous cements and plasters, water whose proportion ranges between 20% and 60% by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 1% and 20% by mass in relation to the mass of hydraulic binder, the foaming agent being a hydrosoluble polymer comprising hydrophobic links, or a mixture of such polymers. |
113 |
Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions |
US10872997 |
2004-06-21 |
US20050279502A1 |
2005-12-22 |
Larry Eoff; Eldon Dalrymple; B. Raghava Reddy |
The present invention provides a method of cementing in a subterranean formation that includes providing a cement composition that includes water, cement, and a fluid loss control additive that includes a water-soluble hydrophobically modified polymer or a hydrophilically modified water-soluble polymer; placing the cement composition into the subterranean formation; and allowing the cement composition to set therein. In certain embodiments, the water-soluble hydrophobically modified polymer or the hydrophilically modified water-soluble polymer may include a polymer backbone that comprises polar heteroatoms. In another embodiment, the water-soluble hydrophobically modified polymer may be a reaction product of a hydrophobic compound with a polyvinylamine, a poly(vinylamine/vinyl alcohol), or an alkyl acrylate polymer. |
114 |
Cement composition, its use for the production of a self-leveling liquid casting, and a casting thus obtained |
US09975954 |
2001-10-15 |
US06849117B2 |
2005-02-01 |
Pierre Colombet; Jean Ambroise; Jean-Pierre Grelaud; Michel Pasquier |
A cement composition for liquid casting, based on a binder comprising Portland cement and additives comprising at least a fluidizer and a combination of a thickening agent acting by steric exclusion and a gelling thickening agent. The composition can also include a surface active agent to regulate the quantity of entrained air. Mixed with water and an aggregate, it permits obtaining, in a single casting, a self-leveling casting of a high thickness (equal to at least 6 cm) and of low density (about 1.6 to 1.9). |
115 |
Cement composition, its use for the production of a self-leveling liquid casting, and a casting thus obtained |
US10914229 |
2004-08-10 |
US20050005821A1 |
2005-01-13 |
Pierre Colombet; Jean Ambroise; Jean-Pierre Grelaud; Michel Pasquier |
A cement composition for liquid casting, based on a binder comprising Portland cement and additives comprising at least a fluidizer and a combination of a thickening agent acting by steric exclusion and a gelling thickening agent. The composition can also include a surface active agent to regulate the quantity of entrained air. Mixed with water and an aggregate, it permits obtaining, in a single casting, a self-leveling casting of a high thickness (equal to at least 6 cm) and of low density (about 1.6 to 1.9). |
116 |
Hydraulic binder with enhanced aging properties |
US10484930 |
2004-08-16 |
US20040255824A1 |
2004-12-23 |
Daniel
Joubert; Mustapha
Sari; Quintino
de Carvalho |
The present invention relates to mineral binders such as hydraulic binders, for example cements or mortars, with improved ageing. At relates more particularly to hydraulic binders based on mineral silicates having a better ageing resistance, to a process for manufacturing these binders, to their uses and to articles obtained from such binders. The invention consists in the addition of an organic compound comprising two hydrophilic functional groups and a hydrophobic chain, such as adipic acid, to the hydraulic binder in order to retard the rate of water uptake by this binder. |
117 |
Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation |
US10745470 |
2003-12-22 |
US20040171499A1 |
2004-09-02 |
Krishna
M.
Ravi; B.
Raghava
Reddy |
The present invention relates to subterranean cementing operations, and more particularly, to cement compositions comprising elastic particles and having improved mechanical properties, and methods of using such compositions in subterranean cementing operations. An example of a method of the present invention comprises the steps of: providing a cement composition comprising a base fluid, a hydraulic cement, and a portion of elastic particles; placing the cement composition in a well bore in a subterranean formation; permitting a portion of the cement composition to enter openings in a region of the subterranean formation in fluid communication with the well bore; and permitting the portion of the cement composition to seal the openings off from the well bore. Another example of a method of the present invention comprises the step of adding a portion of elastic particles to a cement composition. |
118 |
Lightened cement slurries |
US09970775 |
2001-10-05 |
US06656263B2 |
2003-12-02 |
Annie Audibert; Christine Noïk; Alain Rivereau |
A lightened cement slurry for cementation of a well includes cement, at least one mineral filler, water, and resin particles obtained by polymerization from vinyl aromatic, alkyl acrylate or acrylic monomers, wherein the polymerization includes crosslinking. |
119 |
Highly efficient cement dispersants |
US09592231 |
2000-06-12 |
US06284867B1 |
2001-09-04 |
Thomas M. Vickers, Jr.; Runhai Lu; Lynn E. Brower; Samy M. Shendy; Rainer Packe-Wirth; Hong Gao |
A substantially non-crosslinked polymer cementitious composition dispersant for the improvement of the fluidity of cementitious compositions comprising hydrophilic side chain substituted polyimide or polyamide backbone units, having at least some proportion of grafted oligomeric or polymeric hydrophilic side chains linking at least one of amides, esters, and thioesters, wherein the polymer cementitious composition is water soluble, and wherein crosslinking is such that in a statistical sampling there is greater than zero to less than 0.1 mole % of backbone units involved in crosslinking. |
120 |
Surface treated additive for portland cement concrete |
US763088 |
1996-12-10 |
US5948157A |
1999-09-07 |
Colin J. McKenney; Mikhail Pildysh; Donald J. Shyluk |
The invention is directed at an additive for incorporation into a cementitious compound comprising Portland cement and water prior to the setting of the compound. The additive is comprised of a surface treated additive wherein the surfaces of the additive are treated with a substance which has a transient hydrophobic effect on the additive, which effect temporarily renders the additive more hydrophobic for a time period following the incorporation of the additive into the compound such that the water comprising the compound is less attracted to the additive during the placement of the compound and is thus available to provide workability to the compound, and such that the additive regains its natural properties following placement of the compound in order to permit the additive to participate with the compound during the curing of the compound. The invention is also directed at a process for preparing the additive and a process for preparing a cementitious compound comprised of the additive. |