| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Powdered CBC system with improved reaction feature | US11567849 | 2006-12-07 | US07682445B2 | 2010-03-23 | Leif Hermansson; Håkan Engqvist |
| The present invention deals with the initial hydration reaction of highly alkaline chemically bonded ceramic systems such as Ca-aluminate and Ca-silicate, exhibiting a controlled pH development, reduced from very high levels to be in a pH range of 7-9 by the use of an internal buffer system added to the CBC type biomaterial used. The invention is especially intended for endodontic, orthopaedic applications and/or soft tissue applications and/or drug delivery carrier applications. | ||||||
| 102 | METHOD OF MAKING A WATER RESISTANT SILICATE-BASED CERAMIC COMPOSITE MATERIAL | US11250712 | 2005-10-14 | US20090165677A1 | 2009-07-02 | Richard L. Weir |
| A method of creating a water resistant, silicate-based ceramic composite article is disclosed. The method comprises depositing the silicate-based ceramic composite article in a container; immersing the silicate-based ceramic composite article in a solution comprising water and a soluble chemical that reacts with high alkali ions present in the silicate-based ceramic composite article and reduces the pH of the silicate-based ceramic composite article; soaking the silicate-based ceramic composite article in the solution for a period of time; removing the silicate-based ceramic composite article from the solution; and drying the silicate-based ceramic composite article. | ||||||
| 103 | Method of delivery of agents providing freezing and thawing resistance to cementitious compositions | US11452048 | 2006-06-13 | US07435766B2 | 2008-10-14 | Frank Ong |
| A method of delivering an admixture providing freeze-thaw resistance to a cementitious composition is provided which includes the addition of a viscosity modifying admixture containing at least one of polymeric microspheres, at least partially degradable polymeric particles, or gas generating additives to cementitious compositions. The polymeric microspheres, at least partially degradable polymeric particles, and gas generating additives provide void spaces in the material matrix, and such void spaces act to increase freeze-thaw durability of the material. | ||||||
| 104 | Method for Preparing a Gypsum Composition | US12065998 | 2006-09-20 | US20080206599A1 | 2008-08-28 | Philippe Thouilleux; Jean-Philippe Boisvert; Isabelle Javierre |
| The invention provides a method for preparing a gypsum composition containing a cross-linked polymer comprising the following steps: preparing a slurry of the gypsum composition by mixing the various constituents of the composition, or precursors thereof, with water, in a mixer; hydraulic setting; and drying and cross-linking in the presence of heat. The invention applies to the manufacture of gypsum boards.The invention further provides a composition of gypsum containing a cross-linked polymer, and further comprising a water resisting additive in an amount such that the water uptake is below 10%. | ||||||
| 105 | Crosslinked green body articles and method of manufacturing porous ceramic articles therefrom | US11699288 | 2007-01-29 | US20080179771A1 | 2008-07-31 | Weiguo Miao; Steven Bolaji Ogunwumi; Jianguo Wang |
| The invention describes a high porosity ceramic article and method of manufacturing the same and intermediate dried honeycomb green body articles. The article may have a total porosity of at least about fifty-five percent, above sixty percent, or even above sixty-five percent. The method of manufacture includes mixing a ceramic-forming powder, an organic pore former, water, and a crosslinker. Drying causes a condensation reaction between the pore former and the crosslinker thereby forming a network within the green body that strengthens the green body and reduces cracking. The pore former may include starch or an activated cellulose compounds. Secondary pore forming agents, such as graphite may also be included. | ||||||
| 106 | In situ formation of chloride sequestering compounds | US11078814 | 2005-03-11 | US07393406B2 | 2008-07-01 | Paul W. Brown |
| The present invention provides methods and compounds for the in situ formation in concrete of chloride sequestering compounds that resist corrosion of metals contained within the concrete. These chloride sequestering compounds may include, but are not limited to, compounds having the formula 3CaO.Fe(2-x)AlxO3.Ca(NO2)2.nH2O and 3CaO.Fe(2-x)AlxO3.Ca(NO3)2.nH2O, where x ranges from about 0 to 1.4 and n ranges from about 8 to 24. In one embodiment, at least one Fe-containing additive is introduced into cement, and at least one anion-containing additive is introduced into mixing water. When the cement and mixing water are combined to create fresh concrete, the additives react to form chloride sequestering compounds. In another embodiment, the additives are introduced or mixed directly into fresh concrete that has already been formed, where they react to create chloride-sequestering compounds. “In situ” formation refers to the creation of a chloride sequestering compound within concrete. | ||||||
| 107 | Self-Repairing, Reinforced Matrix Materials | US11932899 | 2007-10-31 | US20080047472A1 | 2008-02-28 | CAROLYN DRY |
| Self-repairing, fiber reinforced matrix materials include a matrix material including inorganic as well as organic matrices. Disposed within the matrix are hollow fibers having a selectively releasable modifying agent contained therein. The hollow fibers may be inorganic or organic and of any desired length, wall thickness or cross-sectional configuration. The modifying agent is selected from materials capable of beneficially modifying the matrix fiber composite after curing. The modifying agents are selectively released into the surrounding matrix in use in response to a predetermined stimulus be it internal or externally applied. The hollow fibers may be closed off or even coated to provide a way to keep the modifying agent in the fibers until the appropriate time for selective release occurs. Self-repair, smart fiber matrix composite materials capable of repairing microcracks, releasing corrosion inhibitors or permeability modifiers are described as preferred embodiments in concrete and polymer based shaped articles. | ||||||
| 108 | Geopolymer composition and application for carbon dioxide storage | US11462731 | 2006-08-07 | US20080028995A1 | 2008-02-07 | Veronique BARLET-GOUEDARD; Benedicte Zusatz-Ayache; Olivier Porcherie |
| The invention provides geopolymeric compositions intended for use in carbon dioxide injection or production wells or storage reservoirs and preferably in a supercritical carbon dioxide conditions. The geopolymeric composition is formed from a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, a retarder and/or an accelerator and a carrier fluid wherein the oxide molar ratio M2O/SiO2 is greater than 0.20 with M an alkali metal. | ||||||
| 109 | High strength biological cement composition and using the same | US11584132 | 2006-10-20 | US20070098811A1 | 2007-05-03 | Donghui Lu; Shuxin Zhou |
| A hydraulic cement for biomedical applications. The cement sets in-situ, hardening when exposed to water to produce nano-dispersed composite of calcium-silicate-hydrate gel mixed with hydroxyapatite. In comparison with prior cements, the composition provides high biocompatibility, high bioactivity and high biomechanical strength, due to the composite structure of the calcium silicate hydrate reinforced with co-precipitated particles of hydroxyapatite. Biocompatibility is also increased due to an absence of aluminum and magnesium in the composition. The cement is suitable for variety of applications, including dental implants, bone fixation, and bone repair. | ||||||
| 110 | Method of delivery of agents providing freezing and thawing resistance to cementitious compositions | US11452048 | 2006-06-13 | US20060281835A1 | 2006-12-14 | Frank Ong |
| A method of delivering an admixture providing freeze-thaw resistance to a cementitious composition is provided which includes the addition of a viscosity modifying admixture containing at least one of polymeric microspheres, at least partially degradable polymeric particles, or gas generating additives to cementitious compositions. The polymeric microspheres, at least partially degradable polymeric particles, and gas generating additives provide void spaces in the material matrix, and such void spaces act to increase freeze-thaw durability of the material. | ||||||
| 111 | Degradable particulate generation and associated methods | US11049483 | 2005-02-02 | US20060172894A1 | 2006-08-03 | Michael Mang; Trinidad Munoz; Rajesh Saini |
| Herein provided are methods for producing degradable particulates at a drill site, and methods related to the use of such degradable particulates in subterranean applications. In one embodiment, the present invention provides a method comprising: providing a treatment fluid, the treatment fluid comprising degradable particulates, at least a portion of the degradable particulates having been made by a supercritical fluid assisted method at a drill site; and introducing the treatment fluid into a well bore penetrating a subterranean formation at the drill site. | ||||||
| 112 | System for a chemically bonded ceramic material, a powdered material and a hydration liquid therefore, the ceramic material, a method for its production and a device | US10518083 | 2003-06-11 | US20060167148A1 | 2006-07-27 | Hakan Engqvist; Leif Hermansson; Jesper Loof; Nils-Otto Ahnfelt |
| A system for a chemically bonded ceramic material, comprising an aqueous hydration liquid and a powdered material, the binder phase of which essentially consisting of a cement system, which powdered material has the capacity following saturation with the hydration liquid reacting with the binder phase to hydrate to a chemically bonded ceramic material. According to the invention, the powdered material comprises a first part component for the formation of an organic phase in the ceramic material and the hydration liquid comprises a second part component for the formation of said organic phase. The invention also relates to the powdered material and the hydration liquid, respectively, the formed ceramic material, a method for the production of the material and a device for storing the powdered material and mixing it with the hydration liquid. | ||||||
| 113 | Method of resisting corrosion in metal reinforcing elements contained in concrete and related compounds and structures | US10866948 | 2004-06-14 | US07060128B2 | 2006-06-13 | Paul Brown |
| In some embodiments, alternate sources of aluminum or calcium are provided in various ways including the desired compounds. The further object of the present invention contemplate in situ creation of the compound in interest in fresh concrete and as a slurry which can be employed in remediation of existing concrete structures. A method of resisting corrosion in concrete containing metal elements is provided. It includes introducing into fresh concrete, containing metal elements, at least one compound capable of sequestering chloride ions. The method may also involve employing a compound which is capable of establishing a corrosion resistant oxide layer on the metal reinforcing elements. The invention also includes certain compounds which may be employed in the method as well as concrete structures containing the compounds. In another embodiment of the invention, concrete structures may be rehabilitated by providing an overlay containing a compound of the type which will contribute to corrosion resistance either through chloride ion sequestering or creating barriers around metal structural elements with the overlay being provided in situ or as a preformed member and with possible use of a slurry in combination with an overlay segment. In another embodiment, a source of alumina is combined in solution with Ca(NO2)2 and/or NaNO2 with the resultant solution being introduced into the pores of a concrete structure, preferably under pressure to cause them to react with each other and with Ca(OH)2 contained within the concrete to produce the desired corrosion inhibiting compound. | ||||||
| 114 | Inorganic shaped bodies and methods for their production and use | US11136317 | 2005-05-24 | US20060039951A1 | 2006-02-23 | Ronald Sapieszko; David Dychala; Erik Erbe |
| Shaped, preferably porous, inorganic bodies are provided which are prepared from a reactive blend. In accordance with one preferred embodiment, the solution is absorbed into a porous sacrificial substrate such as a cellulose sponge. The solution-saturated substrate is heated and an oxidation-reduction reaction occurs thereby forming an inorganic solid. A shaped, inorganic body is formed in situ. Optional, but preferred additional thermal treatment of the shaped, inorganic body removes the organic substrate, leaving an inorganic body that faithfully mimics the porosity, shape, and other physical characteristics of the organic substrate. Inorganic substrates may also be used to good effect. Large varieties of shaped bodies can be prepared in accordance with other embodiments of the invention and such shapes find wide use in surgery, laboratory and industrial processes and otherwise. The invention also provides chemically and morphologically uniform powders, including those having uniformly small sizes. | ||||||
| 115 | Methods of generating gas in well treating fluids | US10792999 | 2004-03-04 | US06992048B2 | 2006-01-31 | B. Raghava Reddy; Krishna M. Ravi; Karen Luke; Rickey L. Morgan |
| The present invention relates to methods of generating gas in and foaming well treating fluids during pumping of the treating fluids or after the treating fluids are placed in a subterranean zone, or both. A method of the present invention provides a method of making a foamed well fluid that comprises a gas comprising the steps of combining an aqueous fluid, a surfactant, an encapsulated activator, and a gas generating chemical, the gas generating chemical being present in an amount in the range of from about 0.1% to 100% of a water component in the aqueous well fluid; and allowing the gas generating chemical and the encapsulated activator to react so that gas is generated in the aqueous fluid to form a foamed well fluid. Methods of cementing, fracturing, cementing compositions, fracturing fluid compositions, and foamed well fluid compositions also are provided. | ||||||
| 116 | In situ formation of chloride sequestering compounds | US11078814 | 2005-03-11 | US20050235881A1 | 2005-10-27 | Eric Stevens; Paul Brown |
| The present invention provides methods and compounds for the in situ formation in concrete of chloride sequestering compounds that resist corrosion of metals contained within the concrete. These chloride sequestering compounds may include, but are not limited to, compounds having the formula 3CaO.Fe(2-x)AlxO3.Ca(NO2)2.nH2O and 3CaO.Fe(2-x)AlxO3.Ca(NO3)2.nH2O, where x ranges from about 0 to 1.4 and n ranges from about 8 to 24. In one embodiment, at least one Fe-containing additive is introduced into cement, and at least one anion-containing additive is introduced into mixing water. When the cement and mixing water are combined to create fresh concrete, the additives react to form chloride sequestering compounds. In another embodiment, the additives are introduced or mixed directly into fresh concrete that has already been formed, where they react to create chloride-sequestering compounds. “In situ” formation refers to the creation of a chloride sequestering compound within concrete. | ||||||
| 117 | Method of resisting corrosion in metal reinforcing elements contained in concrete and related compounds and structures | US11039101 | 2005-01-20 | US20050121651A1 | 2005-06-09 | Paul Brown |
| The present invention provides methods for resisting corrosion of metal elements in concrete, and associated compounds and structures. Acid mine drainage sludge is used as a source of a precursor compound that reacts with a source of anion to form a chloride-sequestering compound. The precursor compound may have the formula 2Me′(II)O·(Y(2−x),Y′x)O3+qMe′(II)O, where at least one of Y and Y′ is present; Y and Y′ are different and are independently selected from the group consisting of Al, Fe, Cr, and not present; Me′ is a cation and is selected from the group consisting of Ca, Ba, Sr, Mn, and Zn; x is a number ranging from 0 to 2; and q is a number ranging from 0 to 2; and combinations thereof. In a preferred embodiment, the precursor compound has the formula 2CaO(Fe(2−x),Alx)O3+CaO. | ||||||
| 118 | Cementing compositions and methods of cementing in a subterranean formation using an additive for preventing the segregation of lightweight beads. | US10376388 | 2003-02-28 | US06889767B2 | 2005-05-10 | B. Raghava Reddy; Sears T. Dealy |
| Cementing compositions and methods of cementing in a subterranean formation are provided. The cement composition includes a hydraulic cement, lightweight beads, and a desegregating agent for inhibiting segregation of the beads. The lightweight beads may be, for example, cenospheres, glass spheres, and ceramic spheres. The desegregating agent comprises a particulate substrate such as precipitated silica. It also comprises a polar molecule producing chemical disposed on the particulate substrate. Preferably, the polar molecule producing chemical is absorbed on the particulate substrate. The polar molecule producing chemical comprises at least one of a polar molecule producing acid such as glacial acetic acid, a salt of such an acid, and an acid anhydride. The method of cementing includes forming a pumpable slurry using the cement composition, pumping the slurry into a subterranean formation, and allowing the slurry to set. | ||||||
| 119 | Cementing compositions and methods of cementing in a subterranean formation using an additive for preventing the segregation of lightweight beads | US10376388 | 2003-02-28 | US20040168803A1 | 2004-09-02 | B. Raghava Reddy; Sears T. Dealy |
| Cementing compositions and methods of cementing in a subterranean formation are provided. The cement composition includes a hydraulic cement, lightweight beads, and a desegregating agent for inhibiting segregation of the beads. The lightweight beads may be, for example, cenospheres, glass spheres, and ceramic spheres. The desegregating agent comprises a particulate substrate such as precipitated silica. It also comprises a polar molecule producing chemical disposed on the particulate substrate. Preferably, the polar molecule producing chemical is absorbed on the particulate substrate. The polar molecule producing chemical comprises at least one of a polar molecule producing acid such as glacial acetic acid, a salt of such an acid, and an acid anhydride. The method of cementing includes forming a pumpable slurry using the cement composition, pumping the slurry into a subterranean formation, and allowing the slurry to set. | ||||||
| 120 | Concrete admixture | US09763482 | 2001-09-25 | US06723163B1 | 2004-04-20 | Thomas Hofmann |
| An accelerating admixture for sprayed concrete comprises: (a) the reaction product of aluminium hydroxide with an organic acid; (b) aluminium sulphate; and (c) at least one alkanolamine. Concrete to which accelerator has been added sets rapidly. | ||||||
QQ群二维码
意见反馈
意见反馈