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    • 4. 发明授权
    • Pigment for sensing gas leakage and process for producing the same
    • 用于感测气体泄漏的颜料及其制造方法
    • US5849073A
    • 1998-12-15
    • US25338
    • 1998-02-18
    • Masashi SakamotoHaruo OkudaHideo Futamata
    • Masashi SakamotoHaruo OkudaHideo Futamata
    • C09C1/36C09C3/06C09D7/12
    • B82Y30/00C09C1/3661C09C3/063C09D7/1225C09D7/1266C09D7/1275C01P2004/62C01P2004/64C01P2004/84C01P2006/12C01P2006/60C01P2006/80C08K3/22C08K9/02
    • A pigment for sensing gas leakage can be produced by adding at least one of salts of platinum group metals to a slurry of particulate substrate, neutralizing the resultant mixture to deposit at least one of oxides, hydroxides and hydrated oxides of platinum group metals on the surfaces of said particulate substrate, and if necessary, further adding to said slurry at least one of compounds of aluminum, silicon, titanium, zinc, zirconium, tin, antimony and cerium, neutralizing the resultant mixture to deposit at least one of compounds such as oxides, hydroxides and hydrated oxides of aluminum, silicon, titanium, zinc, zirconium, tin, antimony and cerium, on the particles. The pigment for sensing gas leakage allows any combustible gas such as hydrogen, carbon monoxide, acetylene, methane and the like leaking from chemical reaction apparatuses and various factories using reducing gases to be definitely and conveniently detected by applying the pigment onto the surfaces of the outer walls and pipes of chemical reaction apparatuses as well as the surfaces of the rooms of the factories.
    • 用于感测气体泄漏的颜料可以通过将铂族金属的至少一种盐添加到颗粒基质的浆料中,中和所得混合物以在表面上沉积铂族金属的氧化物,氢氧化物和水合氧化物中的至少一种 的所述颗粒基材,并且如果需要,向所述浆料中进一步添加铝,硅,钛,锌,锆,锡,锑和铈的化合物中的至少一种,中和所得混合物以沉积至少一种化合物如氧化物 ,铝,硅,钛,锌,锆,锡,锑和铈的氢氧化物和水合氧化物。 用于感测气体泄漏的颜料允许从化学反应装置泄漏的任何可燃气体,例如氢气,一氧化碳,乙炔,甲烷等,并且使用还原气体的各种工厂通过将颜料施加到外部表面上来确定地和方便地检测 化学反应设备的墙壁和管道以及工厂房间的表面。