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| Number | Title | Issue Date |
| 7351756 | Toughened polyethylene terephthalate A composite material is disclosed having a matrix formed of polyethylene terephthalate and cement particles distributed in the matrix. The cement particles may be Portland cement. About 50 wt % or less of the composite material is cement particles. The cement partic... | 04/01/2008 |
| 7255168 | Lightweight composite particulates and methods of using such particulates in subterranean applications Lightweight composite particulates and their use in subterranean applications such as production enhancement and completion are provided. In one embodiment a method of forming a lightweight particulate suitable for use as proppant or gravel in a subterranean operati... | 08/14/2007 |
| 7128158 | Lightweight composite particulates and methods of using such particulates in subterranean applications The present invention relates to lightweight composite particulates and their use in subterranean applications such as production enhancement and completion. One embodiment of the present invention provides a method of forming a lightweight particulate suitable for ... | 10/31/2006 |
| 7074269 | Hydraulic binder with enhanced aging properties Hydraulic binders, such as cements, mortars with enhanced aging properties, are described. More particularly, hydraulic binders based on mineral silicates are described having greater aging strength, a method for making said binders and their uses and articles obtai... | 07/11/2006 |
| 7040575 | Foam composite insulation for aircraft Insulation for use in an aircraft fuselage is formed wherein at least one layer made from an open-celled foam that provides acoustic and thermal insulation. The open-celled foam is compression fitted into the airplane fuselage so as to provide effective attachment t... | 05/09/2006 |
| 6995105 | Use of water-soluble mixed polymers as a flowing medium and/or as a hardening retarder for refractory materials which contain aluminate cement The use of a three-component water-soluble polymer comprising 5–90% by weight of a component a), preferably of the maleic acid, fumaric acid or itaconic acid type, 5–90% by weight of a component b) essentially from the group consisting of 2-acrylamido-2-methylpr... | 02/07/2006 |
| 6846856 | Mixed organic and inorganic composites with intermingled facial layers A composite structure comprises an inorganic discrete phase, an organic matrix phase and an interfacial layer comprising both the inorganic and organic phases. In one process, the inorganic discrete phase is partially dissolved and the precipitated by a chemical rea... | 01/25/2005 |
| 6632876 | Product for coating the internal surface of a conduit, method and machine using same and conduit coated with same The invention relates to a product for the internal coating of a pipeline component (1), in particular a metal pipeline component, comprising an internal wall (4) of high curvature. This product comprises a solid charge and a liquid. The liquid is a solut... | 10/14/2003 |
| 6583217 | Composite material composed of fly ash and waste polyethylene terephthalate A composite material and method are described wherein melted waste, chemically unmodified PET material and fly ash particles are mixed in a vessel to disperse fly ash particles in the melted PET material. The resulting mixture then is cooled to solidify t... | 06/24/2003 |
| 6569939 | Polymer composition for flexibilizing building materials The invention provides a polymer composition for flexibilizing building materials, in the form of their aqueous dispersion or of powder redispersible in water, containing a) at least one water-insoluble, film-forming polymer of one or more ethylenically u... | 05/27/2003 |
| 6528547 | Synthetic aggregate and method of producing the same A synthetic aggregate having a multiplicity of uses such as for mixing with a cementing material to form concrete, mortar or plaster is disclosed. The aggregate includes crushed fragments of a size which are capable of passing through mesh screen having s... | 03/04/2003 |
| 6254981 | Fused glassy particulates obtained by flame fusion The disclosure describes methods for producing bulk, particulate material that includes solid, generally ellipsoidal particles. Irregularly shaped feed particles with average particle sizes of up to 25 microns on a volume basis are dispersed in at least a... | 07/03/2001 |
| 6176921 | Cement dispersants and method of producing concrete by using same A cement dispersant composed of water-soluble vinyl copolymers which include specified kinds of constituent units at specified ratios and of which the weight average molecular weight pullulan converted by GPC method is 15000-150000 and the ratio of weight... | 01/23/2001 |
| 6110270 | Method for influencing moisture content and migration in building materials The moisture content within, and moisture flow in and out of, porous building materials such as masonry, brick, concrete, and mortar, can be affected by coating the building material with polyvinyl alcohol, or by incorporating polyvinyl alcohol into the b... | 08/29/2000 |
| 6103789 | Hydrosoluble acrylic copolymers Acrylic copolymers containing the following repeating units: ##STR1## wherein RA, RB, RC, RI, RII, equal or different, are H or CH3 ; M+ is H or a cation belonging to group IA, I... | 08/15/2000 |
| 5997633 | Composition for and method of pumping concrete A composition for and a method of promoting the flow of a concrete slurry through a pump and a conduit is provided. The composition is a dry particulate mixture comprised of a water soluble, inorganic material and a solvatable, organic polymer. The compos... | 12/07/1999 |
| 5945478 | High speed extrusion Extrusion rheology of thermoplastic polymer as manifested by surface smoothness is improved by incorporating foam cell nucleating agents into the polymer and extruding the polymer under laminar flow to form unfoamed extrudate.... | 08/31/1999 |
| 5879445 | Thinners for aqueous suspensions of mineral particles and hydraulic binder pastes A process for fluidizing an aqueous suspension of mineral particles or hydraulic binder pastes which comprises admixing said aqueous suspension of mineral particles or hydraulic binder pastes with one or more compounds or salts of compounds corresponding ... | 03/09/1999 |
| 5854318 | Cement additive, method for producing the same, and cement composition A cement additive is added to increase flowability of a cement composition and to prevent a slump loss, but those characters are insufficient, or the cement additive becomes ununiform in the cement composition and causes a trouble of the hardening inferio... | 12/29/1998 |
| 5850880 | Composition and method to control cement slurry loss and viscosity Powdered and liquid fluid loss additives are disclosed for use in cementing wellbores, particularly oil and gas wellbores. Excellent fluid loss control is achieved over a wide range of conditions using various cements systems. The invention utilizes polyv... | 12/22/1998 |
| 5851281 | Waste material composites and method of manufacture A process to manufacture a waste material composite and article is described. One embodiment comprises waste material particles or fibers mixed with water to form a mash, blending a chemical binder with the mash, mixing in a cementious material and a fill... | 12/22/1998 |
| 5840114 | High early-strength-enhancing admixture for precast hydraulic cement and compositions containing same A high early strength admixture for precast hydraulic cement comprises a calcium salt and a copolymer having a carbon-containing backbone to which are attached cement-anchoring members, such as carboxyl groups, and to which are also attached oxyalkylene p... | 11/24/1998 |
| 5824725 | Method and composition for stabilizing soil and process for making the same A water soluble chemical composition for use as a soil stabilizer, conditer and structuring agent includes a dispersing agent such as a polyanionic sulfonated urea-melamine formaldehyde condensate, an aggregating agent such as a non-ionic water soluble u... | 10/20/1998 |
| 5804175 | Method for producing cement A method for producing cement useful for preparing pastes, mortars, concretes and other cement-based materials, having a high workability with reduced water content, high strength and density, and a rapid development of strength, which method includes a m... | 09/08/1998 |
| 5749964 | Building material mixture A building material mixture for use in manual plasters, gun plasters and knifing fillers having reduced stickiness comprises at least one inorganic binder and a cellulose ether which has been treated with a hydrophobicizing agent.... | 05/12/1998 |
| 5736600 | Mortar admixtures and method of preparing same Additive which simultaneously provides water-repellency and flexural bond strength improvement in mortar, concrete, or cement. An exemplary composition include calcium stearate and a flexural bond strength enhancing material comprising a polymer having a ... | 04/07/1998 |
| 5728207 | Cement admixture product having improved rheological properties and process of forming same The present invention is directed to an imidized polycarboxylic acid polymer useful as a cement admixture, to improved cement compositions containing said polymer and to a process of forming the same.... | 03/17/1998 |
| 5728210 | Composition and method to control cement slurry loss and viscosity Powdered and liquid fluid loss additives are disclosed for use in cementing wellbores, particularly oil and gas wellbores. Excellent fluid loss control is achieved over a wide range of conditions using various cements systems. The invention utilizes polyv... | 03/17/1998 |
| 5725652 | Lightweight, low water content expanded shale, clay and slate cementitious compositions and methods of their production and use An improved lightweight cementitious product made up of an aqueous cementious mixture using cement and expanded shale, clay and slate mix, that can incorporate fly ash, lime, and the weight saving component, which is micronized polystyrene particles havin... | 03/10/1998 |
| 5725656 | Gypsum composition This invention relates generally to a gypsum composition having improved setting and strength characteristics. More specifically, this invention relates to a gypsum composition comprising an acrylic latex and an aliphatic alcohol wherein the composition h... | 03/10/1998 |
| 5725657 | Cement admixture product The present invention is directed to a polyoxyalkylene ammonium salt of an imidized polycarboxylic acid polymer cement admixture, storage stable aqueous solutions of said polymer, and to improved cement compositions containing said polymer.... | 03/10/1998 |
| 5707443 | Grouting materials and their use A grouting material which is self-dispersing when brought into contact with a volume of water containing liquor or slurry and is settable to a solid mass after such dispersion, the material being in the form of self-dispersing granules or pellets and comp... | 01/13/1998 |
| 5707445 | Admixture for concrete An admixture for concrete comprising, as an essential component, a copolymer prepared by copolymerizing (a) a polyalkylene glycol monoester monomer having 110 to 300 mols of an oxyalkylene group(s) each having 2 to 3 carbon atoms, with (b) at least one mo... | 01/13/1998 |
| 5688457 | High speed extrusion Extrusion theology of thermoplastic polymer as manifested by surface smoothness is improved by incorporating foam cell nucleating agents into the polymer and extruding the polymer under laminar flow to form unfoamed extrudate.... | 11/18/1997 |
| 5683503 | Composition for and method of pumping concrete A composition for and a method of promoting the flow of a concrete slurry through a pump and a conduit is provided. The composition is a dry particulate mixture comprised of a water soluble, inorganic material and a solvatable, organic polymer. The compos... | 11/04/1997 |
| 5681386 | Method for blending of admixtures in a sprayed concrete mass and agent for application of the method In a method for blending of admixtures in a concrete mass which is transported through pipes/hoses to a casting site and in which the mass shall have a consistency which is suitable for casting of the mass on wall or roof surfaces there are used admixture... | 10/28/1997 |
| 5681385 | Method for retarding efflorescence in building materials and building material that exhibits reduced efflorescence Efflorescence of building material, such as portland cement based building products, masonry, brick, concrete, and mortar, can be retarded by contacting the building material with polyvinylalcohol (PVOH). The PVOH may be dissolved in solvent, preferably w... | 10/28/1997 |
| 5670567 | Method and composition for stabilizing soil and process for making the same A water soluble chemical composition for use as a soil stabilizer, conditer and structuring agent includes a dispersing agent such as a polyanionic sulfonated urea-melamine formaldehyde condensate, an aggregating agent such as a non-ionic water soluble u... | 09/23/1997 |
| 5665158 | Cement admixture product The present invention is directed to a polyoxyalkylene ammonium salt of an imidized polycarboxylic acid polymer cement admixture, storage stable aqueous solutions of said polymer, and to improved cement compositions containing said polymer.... | 09/09/1997 |
| 5651817 | Cement dispersant When a cement dispersant comprising a polymer which is obtained by co-condensating monomers comprising monomer (A) and monomer (B) with formaldehyde, or a salt obtained by neutralizing the polymer, wherein the monomer (A) is an aromatic compound having, o... | 07/29/1997 |
