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    • 4. 发明授权
    • Imidazole derivatives
    • 咪唑衍生物
    • US5180836A
    • 1993-01-19
    • US786392
    • 1991-11-01
    • Susumu OkabeMitsuo MasakiTomio YamakawaHitoshi MatsukuraYutaka Nomura
    • Susumu OkabeMitsuo MasakiTomio YamakawaHitoshi MatsukuraYutaka Nomura
    • C07D233/84C07D235/28
    • C07D233/84C07D235/28
    • Disclosed are novel imidazole derivatives having the formula: ##STR1## wherein R.sup.1 and R.sup.2 are H, alkyl, cycloalkyl, aryl, aralkyl or halogen-substituted alkyl, or R.sup.1 and R.sup.2 are combined to form a heterocyclic ring; R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are H, halogen, alkoxy, aralkyloxy, alkyl, alkoxycarbonyl, nitro, amino, acyl, fluorine substituted-alkyl, or fluorine substituted-alkoxy, or R.sup.3 is combined with R.sup.2 to form a heterocyclic ring; R.sup.8 and R.sup.9 are H, halogen, alkoxy, alkyl, alkoxycarbonyl, nitro, amino, acyl, fluorine substituted-alkyl, fluorine substituted-alkoxy, or aryl group which may have a substituent, or R.sup.8 and R.sup.9 are combined to form an alicyclic ring; R.sup.7 is, where R.sup.8 and R.sup.9 are not combined, H, and, where R.sup.8 and R.sup.9 are combined, H, alkyl which may have a substituent, aryl which may have a substituent, arylcarbonyl which may have a substituent, or a sulfur-containing heterocyclic group; and n is 0 or 1. The new imidazole derivatives are effective particularly as anti-ulcer agents.
    • 公开了具有下式的新的咪唑衍生物:其中R 1和R 2是H,烷基,环烷基,芳基,芳烷基或卤素取代的烷基,或者R 1和R 2结合形成杂环; R3,R4,R5和R6是H,卤素,烷氧基,芳烷氧基,烷基,烷氧基羰基,硝基,氨基,酰基,氟取代的 - 烷基或氟取代的 - 烷氧基,或R3与R2结合形成杂环; R8和R9是可以具有取代基的H,卤素,烷氧基,烷基,烷氧基羰基,硝基,氨基,酰基,氟取代的 - 烷基,氟取代的 - 烷氧基或芳基,或R8和R9组合形成脂环 ; R 7是,其中R 8和R 9不组合,其中R 8和R 9结合,可以具有取代基的烷基,可以具有取代基的芳基,可以具有取代基的芳基或含硫 杂环基; 并且n为0或1.新的咪唑衍生物特别用作抗溃疡剂。
    • 10. 发明授权
    • Magnesia-spinel refractory and method of producing the same
    • 氧化镁 - 尖晶石耐火材料及其制造方法
    • US06239051B1
    • 2001-05-29
    • US09493017
    • 2000-01-28
    • Fumito TanakaHideya SatoSusumu OkabeMasaharu Yamada
    • Fumito TanakaHideya SatoSusumu OkabeMasaharu Yamada
    • C04B3504
    • C04B35/053B22D41/02B22D41/54
    • The present invention provides a magnesia-spinel refractory in which corrosion resistance and slag penetration resistance are significantly improved. The magnesia-spinel refractory is obtained by mixing magnesia granulated powder having a particle diameter of 10 to 150 &mgr;m and alumina powder having a particle diameter of 0.1 to 5 &mgr;m, molding the resultant mixture, and then burning the molded product to form a dense and strong combined structure of periclase and spinel. The mixture of magnesia and alumina contains powders of both components, or a powder of one of the components and a granulated powder of the other component. It is preferable to use a spray dryer method as granulating means, and a hydrostatic pressing method as molding means. These mixtures are used for producing magnesia-spinel protecting tube and crucible, bricks for copper smelting and converting furnaces, and magnesia-spinel protecting tube and crucible for copper smelting and converting furnace slag. In this case, the hydrostatic pressing method is used.
    • 本发明提供了耐腐蚀性和耐熔渣渗透性显着提高的氧化镁 - 尖晶石耐火材料。 通过混合粒径为10〜150μm的氧化镁粒状粉末和粒径为0.1〜5μm的氧化铝粉末,将所得混合物成型,然后将成型体燃烧形成致密的和 强韧组合结构的尖晶石和尖晶石。 氧化镁和氧化铝的混合物含有两种组分的粉末,或其中一种组分的粉末和另一种组分的造粒粉末。 优选使用喷雾干燥法作为造粒机构,以静压压制法作为成型机构。 这些混合物用于生产氧化镁 - 尖晶石保护管和坩埚,用于铜冶炼和转炉的砖,以及用于铜冶炼和转炉炉渣的氧化镁 - 尖晶石保护管和坩埚。 在这种情况下,使用静压法。