| 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 | Environmentally acceptable well cement fluid loss control additives, compositions and methods | US10135753 | 2002-04-30 | US20020162486A1 | 2002-11-07 | Jan Pieter Vijn; Bach Dao; Mohand Melbouci |
| Environmentally acceptable well cement fluid loss control additives, cement compositions including the additives and methods of using the compositions are provided. The environmentally acceptable fluid loss control additives are comprised of ethoxylated hydroxyethylcellulose having a reduced molecular weight. | ||||||
| 102 | Environmentally acceptable well cement fluid loss control additives, compositions and methods | US09732861 | 2000-12-08 | US06405801B1 | 2002-06-18 | Jan Pieter Vijn; Bach Dao; Mohand Melbouci |
| Environmentally acceptable well cement fluid loss control additives, cement compositions including the additives and methods of using the compositions are provided. The environmentally acceptable fluid loss control additives are comprised of ethoxylated hydroxyethylcellulose having a reduced molecular weight. | ||||||
| 103 | Aqueous suspension of silica and of aluminium sulphate or of alum, processes for the preparation and uses of the said suspension | US627035 | 1996-04-03 | US6136867A | 2000-10-24 | Laurent Frouin; Evelyne Prat |
| The invention relates to aqueous suspensions of precipitated silica and of aluminum sulphate which have a pH lower than 4 and a solids content of between 10 and 50% by weight and which, after a period at rest of 48 hours, are in the form of a gel. The gel is reversible under low shear. The invention also relates to processes for the preparation of these suspensions and to their uses, especially in the field of cement mixes, mortars and concretes. | ||||||
| 104 | Freeze-preventing material and method for preventing pavement surface from freezing | US166794 | 1998-10-06 | US06126850A | 2000-10-03 | Nobuya Ishioka; Tetsuhiko Yamaguchi; Masaki Sazawa; Kenichi Kitamura |
| A freeze-preventing material comprises cement, salt, and water-absorbing resins. The freeze-preventing material is scattered on the pavement surface in the form of slurry to prevent the pavement surface from freezing. Thereby a freeze-preventing effect is maintained for a long period of time owing to the water-absorbing resins which absorb and retain the salt in large amounts. The anti-freezing effect can be restored by spraying the pavement with the salt again. | ||||||
| 105 | Treating earthenware bodies | US446722 | 1995-09-02 | US5900280A | 1999-05-04 | Paul Neil MacMullen |
| A method of treating earthenware bodies to enhance resistance to freezing and to assist the application of decals and the like thereto comprises treating the bodies with a liquid medium containing a water-repellent material such as silicone. In a subsequent drying step, the bulk of the liquid medium is removed while leaving the water-repellent material deposited in the pores of the earthenware body. In this way, subsequent entry of water and freezing and cracking is resisted. It has also been discovered that the treatment also enchances the ability of the earthenware surface to receive decals and the like without the need for glazing and an additional firing step. | ||||||
| 106 | Well cementing methods and compositions for use in cold environments | US521705 | 1995-08-31 | US5571318A | 1996-11-05 | James E. Griffith; Patty L. Totten; Bobby L. King; Jiten Chatterji |
| The present invention provides well cementing methods and compositions for use in cold environments which are particularly suitable for cementing conductor strings in deep water offshore wells. The cement compositions are basically comprised of a relatively coarse particulate hydraulic cement mixed with an ultra fine particulate hydraulic cement, sufficient water to form a pumpable slurry and a fluid loss control additive. | ||||||
| 107 | Cementitious compositions containing hydrocarbyloxyalkyleneoxyalkylenecarboxylic acid or salt thereof | US853380 | 1992-03-18 | US5300149A | 1994-04-05 | Scott T. Jolley; Richard A. Denis |
| The present invention is related to a composition comprising a cementitious material and a hydrocarbyloxyalkyleneoxyalkylenecarboxylic acid or a salt thereof. In one embodiment, the hydrocarbyloxyalkyleneoxyalkylenecarboxylic acid or salt thereof may be represented by the formula:(R.sup.1 O(R.sup.2 O).sub.n (CH.sub.2).sub.y CO.sub.2).sub.x Mwherein R.sup.1 is a hydrocarbyl group, R.sup.2 is an alkylene group, n is at least 1, y is at least 1, M is hydrogen, or a metal cation, and x is the valence of M. A cured cementitious structure comprising the composition and optionally a gas is also disclosed. The cementitious structures exhibit increased freeze-thaw stability. | ||||||
| 108 | Antifreeze admixture for concrete | US59395 | 1993-05-11 | US5296028A | 1994-03-22 | Charles J. Korhonen; Edel R. Cortez |
| A method and composition for making concrete includes an antifreeze admixe which is added to the concrete to prevent the freezing of water in the concrete when the concrete is cured during the winter or other cold conditions. The concrete admixture includes sodium nitrate and sodium sulfate combined with one another in a predetermined ratio. In a preferred a embodiment the ratio of sodium nitrate to sodium sulfate equals 3:1. A dosage of greater than 2% by weight of cement of the above described admixture was found to significantly increase the compressive strength of concrete cast of cold (below freezing, or 0 degrees celsius) temperatures, and dosages of 6% and 8% by weight of cement of the specified admixture were found to be particularly effective. | ||||||
| 109 | Concrete admixture compositions | US790950 | 1991-11-12 | US5176753A | 1993-01-05 | John W. Brook |
| A chloride-free admixture for use as a cold weather (e.g., 13.degree. F. to 40.degree. F.) concrete set accelerator. The admixtures comprise;1) at least one soluble inorganic salt having freezing point depressant properties,2) at least one water reducing dispersant, e.g., superplasticizer,3) at least one inorganic early set and strength accelerator, and optionally,4) at least one inorganic set accelerator. | ||||||
| 110 | Composite material and method of producing same | US943188 | 1978-09-18 | US4234659A | 1980-11-18 | Leonid A. Kostandov; Nikolai S. Enikolopov; Fridrikh S. Dyachkovsky; Ljudmila A. Novokshonova; Jury A. Gavrilov; Olga I. Kudinova; Tatyana A. Maklakova; Leonid A. Akopian; Otar P. Mchedlov-Petrosian; Mikhail I. Boiko; Alexandr A. Staroselsky; Vladimir P. Tkachenko |
| The composite material, which is a solid porous carrier, whose pores are filled with a polymer, a polyolefin having the molecular weight not less than 300,000, the degree of pore filling with said polymer being at least 4 percent of the total volume of the pores, in which the ratio of the carrier mass to the mass of the polymer is 50-99.5:50-0.5. The method of producing said composite material consists in precipitation, from the gas phase, of a complex organometallic catalyst consisting of a compound of a transition metal and of an organic compound of a metal in the 2nd or 3rd group of the Periodic Table, inside the pores of a solid porous carrier, and in polymerization of olefins from the gas phase on said catalyst, precipitated in the pores of the solid porous carrier, at a temperature of 50.degree.-165.degree. C. and a pressure of 1-60 atm. The composite material is characterized by high mechanical strength (compression strength reaching 100-200 kg/sq. cm) high frost resistance, and hydrophobic properties. The proposed method effectively controls the degree of filling the carrier pores with the polymer (from at least 4 percent of the total volume of the pores), and can be used to manufacture composite materials possessing a predetermined set of properties. | ||||||
| 111 | Cement composition | US662666 | 1976-03-01 | US4036659A | 1977-07-19 | Duane L. Stude |
| A cement composition is provided containing portland cement; calcium sulfate hemihydrate; urea; one or more retarders selected from the group consisting of a water soluble salt of a lignosulfonic acid, a low molecular weight hydroxypolycarboxylic acid and sodium, potassium, and lithium salts thereof, and an alkaline hexametaphosphate; and as optional ingredients, calcium chloride and/or a condensation product of mononaphthalene sulfonic acid and formaldehyde; said ingredients being present in amounts effective to provide a cement which will set within a desired period of time at temperatures below about 80.degree. F down to below freezing, e.g. 32.degree. F, to provide a monolithic mass having adequate strength and which also has a sufficient pumping time, i.e. setting time, at higher temperatures, i.e. above about 80.degree. F, so that it can be transported, i.e. pumped at such elevated temperatures without permaturely setting up. | ||||||
| 112 | Protective surfaces or liners for subaqueous structures | US3784357D | 1972-01-13 | US3784357A | 1974-01-08 | MURAOKA J |
| A concrete slab or a tubular concrete pipe is provided with a wall surface or liner to protect the concrete member from marinefouling organisms. The surface or liner incorporates an expanded shale aggregate, which aggregate has been impregnated with chemicals toxic to marine organisms. The toxic material will leach out very slowly over a long period to provide the desired protection. Such protective surfaces or liners are readily removable and can easily be replaced when the toxic chemicals are completely leached out.
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| 113 | Steel Fiber-Reinforced Rubberized Concrete | US15874578 | 2018-01-18 | US20180305255A1 | 2018-10-25 | Osama A. Abaza |
| Disclosed is a concrete mixture comprising an amount of coarse aggregate, an amount of cement, an amount of crumb rubber, and an amount of steel fibers. Also disclosed are methods for the manufacture of same. | ||||||
| 114 | Temperature-sensitive antifreezing material for asphalt pavement and method for preparing same | US15317124 | 2015-09-15 | US09682889B2 | 2017-06-20 | Kun Wang |
| A temperature-sensitive anti-freezing material for asphalt pavement and a method for preparing same. A temperature-sensitive macro molecular organic matter is employed in the anti-freezing material instead of a traditional sustained release agent, and coated on the surface of the chloride particle having an anti-icing anti-freezing effect; and then the temperature-sensitive anti-freezing material for asphalt pavement is prepared by sieving and drying processes. The anti-freezing material can automatically respond to and control the release temperature of the chloride in the anti-freezing material according to the outside temperature, increase the anti-freezing effect duration of the chloride in the asphalt pavement effectively, and extend the service lifetime of the anti-freezing material. | ||||||
| 115 | Pozzolan for use in a cement composition having a low heat of hydration | US13889213 | 2013-05-07 | US09487691B2 | 2016-11-08 | Krishna M. Ravi; Rahul C. Patil; Sandip P. Patil; Trissa Joseph; Marcus Duffy |
| A method of cementing in a subterranean formation comprises: introducing a cement composition into a wellbore penetrating the subterranean formation, wherein at least a portion of the subterranean formation has a temperature less than or equal to the freezing point of an aqueous liquid, and wherein the cement composition comprises: (A) cement; (B) water; and (C) a pozzolan, wherein the cement composition has a heat of hydration of less than 50 BTU per pound; and causing or allowing the cement composition to set in the wellbore after the step of introducing. The pozzolan can have a calcium oxide concentration of less than 15% by weight of the pozzolan, and the pozzolan can have a concentration of at least 15% by weight of the cement. Gas hydrates can be present in or adjacent to a portion of the well. | ||||||
| 116 | Curable hydraulic binder-based cement material intended to be used at low temperatures | US14653107 | 2013-12-16 | US09353002B2 | 2016-05-31 | Jean-Pierre Grelaud |
| Cement material, curable in the presence of water and including a hydraulic binder composition, which contains a mixture of hydraulic binders and a mixture of sulphate sources, wherein the hydraulic binder mixture includes: at least one hydraulic binder containing an alite-type mineralogical phase and at least one hydraulic binder containing an aluminate-type mineralogical phase, mainly consisting of ye'elimite (C4A3$) or a mixture of ye'elimite and calcium monoaluminate (CA), the mixture of sulphate sources containing at least one sulphate source with a solubility of <4 g·L−1, and at least one sulphate source with a solubility >4 g·L−1, the cement material optionally including mineral additions, fine granulates, large granulates and additives. The curable cement material is useful as a material capable of setting in cold weather, in particular a concrete, a mortar, a grout, a coating or a cement paste to be used at a temperature of −10° C. to +5° C. | ||||||
| 117 | EXTERIOR INSULATION MORTAR FOR COLD WEATHER AND METHOD FOR CONSTRUCTING EXTERIOR INSULATION SYSTEM USING SAME | US14761621 | 2013-12-03 | US20150376896A1 | 2015-12-31 | Seung Wook JI; Eung Kee LEE; Chul June CHOI; Myeong Hee KIM; Ji Mun KIM; Byung Joo JEON |
| Disclosed are an exterior insulation mortar for cold weather which may prevent freezing and improve strength at temperatures below 0° C., and an exterior insulation system using the same. | ||||||
| 118 | CURABLE HYDRAULIC BINDER-BASED CEMENT MATERIAL INTENDED TO BE USED AT LOW TEMPERATURES | US14653107 | 2013-12-16 | US20150329422A1 | 2015-11-19 | Jean-Pierre GRELAUD |
| Cement material, curable in the presence of water and including a hydraulic binder composition, which contains a mixture of hydraulic binders and a mixture of sulphate sources, wherein the hydraulic binder mixture includes: at least one hydraulic binder containing an alite-type mineralogical phase and at least one hydraulic binder containing an aluminate-type mineralogical phase, mainly consisting of yeelimite (C4A3$) or a mixture of yeelimite and calcium monoaluminate (CA), the mixture of sulphate sources containing at least one sulphate source with a solubility of <4 g·L-1, and at least one sulphate source with a solubility >4 g·L-1, the cement material optionally including mineral additions, fine granulates, large granulates and additives. The curable cement material is useful as a material capable of setting in cold weather, in particular a concrete, a mortar, a grout, a coating or a cement paste to be used at a temperature of −10° C. to +5° C. | ||||||
| 119 | Shift operating device for automatic transmission | US12482922 | 2009-06-11 | US08196490B2 | 2012-06-12 | Eunsik Kim |
| The present invention provides a dial knob pivotably mounted and a hydraulic device for operating an inhibitor switch of an automatic transmission by creating hydraulic pressure using rotational motion of the dial knob, in order to provide a shift operating device for an automatic transmission that makes it possible to reduce manufacturing cost by having a simple structure and facilitate setting a layout by reducing a space for motion of shift knob, and makes it easy for a driver to shift by turning the shift knob with a hand to reduce the driver's tiredness and improve commercial value. | ||||||
| 120 | Gas Migration Prevention Solid Additive Based on Crosslinked PVA Microgel for Cementing Applications | US11965226 | 2007-12-27 | US20080161445A1 | 2008-07-03 | Barlet-Gouedard Veronique; Ermel Michel; Daniel Sylvie |
| A gas migration prevention additive for use in cementing wells comprising a solid crosslinked poly(vinyl)alcohol microgel. | ||||||
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