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| Number | Title | Issue Date |
| 8007585 | Syrup composition, resin mortar composition and method of coating A syrup composition of the present invention comprises a mixture of monomers (A), each having a molecular mass of 130 to 300 and one (meth)acryloyl group; a resin (C) which is soluble in the monomers (A) and has a glass transition temperature of 20 to 155° C.; a wa... | 08/30/2011 |
| 7815731 | Polyvinyl alcohol fluid loss additive with improved rheological properties A fluid loss additive for hydraulic cement which includes at least two highly hydrolyzed polyvinyl alcohol resins having different molecular weights, or a polyvinyl alcohol resin composition having a broad molecular weight distribution. The fluid loss additive is su... | 10/19/2010 |
| 7744694 | Use of redispersion powder compositions with accelerated-setting action Water-redispersible polymer powder compositions based on a) homo- or copolymers of one or more monomers from the group consisting of vinyl esters of unbranched or branched C1-15 alkylcarboxylic acids methacrylic esters and acrylic esters of C1-15 | 06/29/2010 |
| 7396403 | Concrete reinforced with acrylic coated carbon fibers Concrete products and dry concrete mixes comprise cement, acrylic coated carbon fibers, and any optional components such as silica fumes, slag, stone, sand, and/or other aggregates. Preferably, the acrylic coated carbon fibers have a length of about 2½ inches to ab... | 07/08/2008 |
| 7387674 | Method for solidifying soil and industrial waste, and solidified materials prepared thereby Disclosed herein are a method for solidifying soil and industrial waste and a solidified material prepared thereby. The solidified material of soil and industrial waste is prepared by adding 2-6 parts by weight of a 3-5-fold dilution of a solidifying agent and 3-15 ... | 06/17/2008 |
| 7368488 | Cement admixture and cement admixture composite The cement admixture and the cement admixture composite of the present invention can improve the water-reducing ability of cement compositions and the like and enhance the strength and durability of hardening products produced therefrom and further can adjust the vi... | 05/06/2008 |
| 7351279 | Cement compositions with improved mechanical properties and methods of cementing in subterranean formations Cement compositions with improved mechanical properties and associated methods are provided, which are useful in conjunction with subterranean well operations. In certain embodiments, the cement compositions comprise carbon fibers, rubber particles, a hydraulic ceme... | 04/01/2008 |
| 7347896 | Reactive magnesium oxide cements Novel hydraulic cements are disclosed that include reactive magnesium oxide prepared by low temperature calcination. The cements can be formulated to suit a large number of applications with various setting times, strength and levels of sustainability either by addi... | 03/25/2008 |
| 7341627 | Fiber reinforced concrete products and method of preparation Concrete products and mixes with reinforcing carbon graphite fibers, the carbon fibers being provided in the form of resin coated warped beam fabric, and a method for producing reinforced concrete products, where semi-cured carbon fibers are mixed with concrete and ... | 03/11/2008 |
| 7290613 | Cement compositions comprising aromatic sulfonated polymers and methods of using the same A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the ceme... | 11/06/2007 |
| 7288147 | Providing freezing and thawing resistance to cementitious compositions An improved freeze-thaw durability wet cast cementitious composition is provided that uses in-situ production of gas by gas generating additives and optionally polymeric microspheres that are blended directly into the mixture. The gas generating additives and the po... | 10/30/2007 |
| 7284611 | Methods and compositions for controlling lost circulation in subterranean operations A lost circulation composition, that comprises a first portion of particles having a weight mean particle size of less than about 20 microns, a second portion of particles having a weight mean particle size in the range of from about 25 microns to about 400 microns,... | 10/23/2007 |
| 7285167 | Fiber reinforced concrete/cement products and method of preparation Concrete and/or cement products and mixes with reinforcing carbon graphite fibers having a length of about 2½ inches to about 3½ inches, and/or nano and/or micron sized carbon fibers, and a method of reinforcing concrete. ... | 10/23/2007 |
| 7285165 | Cement compositions comprising set retarder compositions and associated methods Cement compositions are provided that comprise a hydraulic cement, water, and a set retarder composition, the set retarder composition comprising an acrylamide polymer derivative; and an iron compound. In some embodiments, cement compositions are provided that compr... | 10/23/2007 |
| 7276114 | Method for making a road base material using treated oil and gas waste material The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” more specifically, drilling waste and aggregate and a novel road base material. Hydration and mixing of the waste materia... | 10/02/2007 |
| 7273103 | Cement compositions comprising environmentally compatible defoaming agents and methods of use Provided herein are defoaming agents that comprise lecithin and a solvent. Optionally, they may comprise hydrophobic particles. One embodiment provides a method comprising: providing a well fluid that comprises foam; providing a defoaming agent that comprises lecith... | 09/25/2007 |
| 7273949 | Salts and methods for their preparation Disulfonate salts of 2,4-pentanedione and methods for making such salts are described. The disulfonate salts are useful as cement dispersants. Cement compositions including such salts, methods for making cement compositions including such salts, and methods for perf... | 09/25/2007 |
| 7273100 | Biodegradable dispersants for cement compositions and methods of cementing in subterranean formations Methods of cementing in a subterranean formation may include the steps of: providing a cement composition comprising a cement, water, and a dispersant comprising a low molecular weight starch that comprises anionic groups; placing the cement composition in the subte... | 09/25/2007 |
| 7267174 | Methods of plugging a permeable zone downhole using a sealant composition comprising a crosslinkable material and a reduced amount of cement A method of servicing a wellbore, comprising preparing a sealant composition comprising a crosslinkable material, a crosslinking agent, a fluid loss control additive, and water, placing the sealant composition in a permeable zone in the wellbore, and allowing the se... | 09/11/2007 |
| 7264053 | Methods of using wellbore servicing fluids comprising resilient material A method of servicing a wellbore, comprising providing a wellbore fluid comprising a carrier fluid and a resilient material, and introducing the wellbore fluid to an annulus, wherein at least a portion of the resilient material reduces in volume to affect the annula... | 09/04/2007 |
| 7255738 | Lightweight cementitious composite material A lightweight cementitious composite material includes expanded synthetic polymer particulate having a particle size of between 0.0625 and 0.5 inches. A dispersant coating on said particulate suppresses electrostatic attraction between particulate particles. A matri... | 08/14/2007 |
| 7255739 | Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations This invention provides cement compositions that comprise a high alumina cement, vitrified shale, a soluble phosphate, and water sufficient to form a slurry. This invention also presents methods of enhancing the corrosion resistance of a cement composition that comp... | 08/14/2007 |
| 7247201 | Pre-blend cement compositions containing non-chloride accelerators The present invention relates to pre-blend cement for general-purpose concrete construction containing Class-F fly ash, Class-C fly ash or slag, and less than about 5 percent (w/w) of sodium thiocyanate (NaSCN) and/or calcium nitrate (Ca(NO3)2)... | 07/24/2007 |
| 7241338 | Sprayable, strain-hardening cementitious compositions Sprayable fiber reinforced hydraulically setting mortars exhibit strain hardening behavior, and comprise hydraulically setting cement, less than 4 weight percent matrix interactive fibers, a non-Newtonian additive, a superplasticizer, optionally a viscosity control ... | 07/10/2007 |
| 7229492 | Cement compositions comprising improved lost circulation materials and methods of use in subterranean formations Cement compositions that include improved lost circulation materials are provided. In certain exemplary embodiments, the improved lost circulation materials include inelastic particles of polyethylene, polystyrene, and/or polypropylene. Optionally, the cement compos... | 06/12/2007 |
| 7223443 | Antimicrobial cementitious composition An antimicrobial cementitious composition for imparting antimicrobial characteristics to cement comprises cement and an antimicrobial agent selected from the group consisting of an ortho-phenyl phenol or salt thereof, a tolyl diiodomethyl sulfone, a zinc pyrithione,... | 05/29/2007 |
| 7219479 | Avoiding cracking and curling in concrete flooring upon which water-based adhesives are employed The invention provides a method for making a concrete floor slab using sub-grade waterproofing in a manner that favors the use of water-based adhesives for affixing floor covering materials. The method comprises casting a hydratable cementitious composition onto a f... | 05/22/2007 |
| 7192985 | More controllable acoustic spray patch A more controllable acoustic ceiling patch or textured material in the form of a sprayable composition includes a base, a filler, an adhesive binder, an anti-foaming agent, a suspension agent, and rubber particulates or polyethylene particulates forming an aggregate... | 03/20/2007 |
| 7178597 | Cement compositions comprising high aspect ratio materials and methods of use in subterranean formations The present invention relates to subterranean well cementing operations, and more particularly, to cement compositions that include high aspect ratio materials, and methods for using such cement compositions in subterranean formations. An example of a method of the ... | 02/20/2007 |
| 7174961 | Methods of cementing using cement compositions comprising basalt fibers Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises water, a hydraulic cement, and a plurality of basalt fibers; introducing ... | 02/13/2007 |
| 7172022 | Cement compositions containing degradable materials and methods of cementing in subterranean formations The present invention provides cement compositions that include degradable materials, and methods of using such compositions in subterranean cementing operations. An example of a method of the present invention includes: providing a cement composition that includes ... | 02/06/2007 |
| 7160384 | Amine-containing cement processing additives An exemplary method of the invention comprises introducing into a grinding mill, wherein cement clinker is ground to provide cement powder, a diamine such as tetrahydroxylethylethylene diamine, and an alkanolamine such as triethanolamine or triisopropanolamine. The ... | 01/09/2007 |
| 7156174 | Contained micro-particles for use in well bore operations The present invention relates to well bore operations, and more particularly, to contained micro-particles, and methods for using such contained micro-particles in cementing operations. An exemplary method of facilitating the use of micro-particles in a well bore fl... | 01/02/2007 |
| 7150322 | Cement compositions comprising environmentally compatible defoamers and methods of use Cement compositions including environmentally compatible defoamers and methods of using such cement compositions are provided herein. An example of a method is a method of cementing in a subterranean formation. Another example of a method is a method of reducing foa... | 12/19/2006 |
| 7147055 | Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations The present invention relates to subterranean well cementing operations, and more particularly, to cement compositions having improved corrosion resistance and methods of using such compositions in subterranean formations. The cement compositions generally include a... | 12/12/2006 |
| 7147706 | Cementitious compositions and methods of making cementitious compositions Cementitious compositions having high compressive strength and high flexibility. An efficient method of making such strong cementitious compositions entails pre-mixing cement additives that can easily be added to a mixture of cement, silica, fibers and water. The ce... | 12/12/2006 |
| 7147708 | Fiber gel mixture for use in cementicious products The present invention relates to a thickened aqueous solution, or gel solution, for use in providing fiber to a cement composition. Additionally, the present invention relates to a method for adding fibers to cement. ... | 12/12/2006 |
| 7144454 | Efflorescence control with wax A method for making a concrete shaped product more resistant to efflorescence, including forming a mixture of a wax blend with a concrete mix into a shaped product, the wax blend including a weight ratio of 50.01% to 99.99% of a main wax and 0.01% to 49.99% of a sec... | 12/05/2006 |
| 7138446 | Elastomeric admixtures for improving cement elasticity A method and cementing composition for sealing a subterranean zone penetrated by a well bore, wherein the cementing composition comprises a mixture of cementitious material, acrylonitrile butadiene styrene (ABS), and sufficient water to form a slurry. ... | 11/21/2006 |
| 7128780 | Process for producing building materials from raw paint sludge A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding... | 10/31/2006 |
