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    • 54. 发明授权
    • Conductive cathodic protection compositions and methods
    • 导电阴极保护组合物和方法
    • US4806272A
    • 1989-02-21
    • US757084
    • 1985-07-19
    • Robert E. Wiley
    • Robert E. Wiley
    • C04B14/36C04B14/02C04B22/02C04B28/02C04B41/48C04B41/63C04B103/61C04B111/94C09D1/06C09D5/00C09D5/24C23F13/02H01B1/06
    • C04B14/022C04B41/483C04B41/63C09D5/24C23F13/02C23F2201/02
    • Disclosed are improved compositions useful in providing a conductive layer or coating on or within a substrate. The compositions contain elemental carbon and a polymeric matrix or binder. The improvement comprises employing a unique ground calcined, coal-based coke which approaches graphite in terms of its performance as a conductive additive or pigment but does not possess the disadvantages associated with the use of graphite.The unique coke employed in the compositions and methods of the present invention has a significant level of graphitic structure. This level of graphitization can be most easily recognized by utilizing x-ray powder diffraction. More specifically, when the value of E.sub.c, or the inverse peak width (of the 002 peak), is measured for this material using Mo K.alpha. radiation (.lambda.=0.71 .ANG.), the value is in the range of about 27 to about 80, and preferably about 28 to about 75.The final compositions employ a polymer resin or matrix system as a binder which, when allowed to dry or cure, in situ, is water-permeable. They are useful as cathodic protection coatings for concrete and other building materials which are reinforced with low carbon steels and the like.The invention also relates to the method of applying the compositions to the reinforced substrate, and the resulting coated articles.
    • 公开了可用于在基材上或内部提供导电层或涂层的改进的组合物。 组合物含有元素碳和聚合物基质或粘合剂。 该改进包括采用独特的研磨煅烧的煤基焦炭,就其作为导电添加剂或颜料的性能而言接近石墨,但不具有与使用石墨相关的缺点。 在本发明的组合物和方法中使用的独特焦炭具有显着水平的石墨结构。 通过利用X射线粉末衍射可以最容易地识别该水平的石墨化。 更具体地说,当使用MoKα辐射(λ= 0.71 ANGSTROM)对该材料测量Ec的值或其峰值峰值(002峰值)时,该值在约27至约80的范围内 ,优选约28至约75.最终组合物采用聚合物树脂或基质体系作为粘合剂,当其允许干燥或固化时,其是透水性的。 它们可用作混凝土和其他用低碳钢等增强的建筑材料的阴极保护涂层。 本发明还涉及将组合物施加到增强基底上的方法以及所得的涂覆制品。
    • 60. 发明授权
    • Method for the manufacture of cellular foamed material
    • 细胞泡沫材料的制造方法
    • US3565647A
    • 1971-02-23
    • US3565647D
    • 1968-09-23
    • JULES MAGDER
    • MAGDER JULES
    • C04B28/02C04B28/06C04B21/02
    • C04B28/02C04B28/06C04B14/04C04B38/02C04B40/00C04B14/022C04B14/34C04B14/02
    • A METHOD FOR CONTINUOUSLY PRODUCING FOAMED CEMENTBASED CELLULAR MATERIAL BY SUBJECTING SPECIFIC LIQUID AND SOLID COMPONENTS TO HIGH-SHEAR MIXING FOR VERY SHORT PERIODS OF TIME AND THEN DISCHARGIN THE MIXTURE SO THAT IT CAN FOAM AND SET PROMPTLY. THE LIQUID MATERIAL WHICH IS MIXED CONSISTS PRINCIPALLY OF WATER, AND PREFERABLY HAS A VISCOSITY OF LESS THAN ABOUT 2.K CENTIPOISES. THE SOLID COMPONENT WHICH IS MIXED CONTAINS A PARTICULATE WATER-SETTABLE (HYDRAULIC) CEMENT AND AN INERT PARTICULATE LAMELLAR FOAM STABILIZING AGENT. A GAS-FORMING AGENT WILL ALSO BE INCLUDED AS PART OF EITHER OR BOTH OF THE LIQUID AND SOLID COMPONENTS. THE TIME OF MXING IS NOT GREATER THAN ABOUT FOUR SECONDS AND PREFERABLY LESS THAN ABOUT ONE SECOND, AND THE HIGH-SHEAR MIXING PREFERABLY PROVIDES A MAXIMUM NOMINAL VELOCITY GRADIENT GREATER THAN ABOUT 500 SECONDS-1 FOR SUBSTANTIALLY ALL OF THE MATERIAL. THE MAXIMUM NOMINAL VELOCITY GRADIENT IS DEFINED FOR THIS PURPOSE AS THE MAXIMUM VALUE OF THE RATIO OF RELATIVE SPEED OF TWO SURFACES OF THE MIXER BETWEEN WHICH SUBSTANTIALLY ALL OF THE MIXTURE IS PASSED, TO THE DISTANCE BETWEEN SAID TWO SURFACE. PREFERABLY THE MIXER A ROTOR DISPOSED ALONG THE AXIS OF THE TUBULAR CHAMBER INTO WHICH THE INGREDIENTS TO BE MIXED ARE CONTINUOUSLY FED, THE ROTOR COMPRISING HELICAL SCREW MEANS DISPOSED ALONG THE LENGTH OF THE ROTOR FOR MOVING THE MIXTURE THROUGH THE CHAMBER, TO ITS OUTLET AND FOR PROVIDING AT LEAST PART OF THE MIXING ACTION, TOGETHER WITH MIXING PINS EXTENDING RADIALLY FROM THE AXIS OF THE ROTOR TO WITHIN A SMALL DISTANCE OF THE CHAMBER WALL TO EFFECT FURTHER MIXING ACTION. THE RESULTANT PRODUCT IS OF INCREASED COMPRESSIVE STRENGTH AND CHARCTERIZED BY THE FACT THAT SUBSTANTIALLY ALL OF THE PORE VOLUME THEREOF IS PROVIDED BY PORES HAVING EFFECTIVE DIAMETERS OUTSIDE A RANGE EXTENDING FROM ABOUT TWO MICRONS TO ABOUT 300 MICRONS, AND PREFERABLY AT LEAST ABOUT 97% OF THE PORE VOLUME IS PROVIDED BY PORES OUTSIDE SAID RANGE. THERE IS ALSO PROVIDED NOVEL CELLULAR PRODUCTS CONSISTING ESSENTIALLY OF HIGH ALUMINA CEMENTS, AS THE WATER SETTABLE CEMENT, AND THE STATED INERT PARTICULATE LAMELLAR FOAM STABILIZING AGENT.