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    • 33. 发明授权
    • Coolant inhibitor concentrate
    • 冷却剂抑制剂浓缩液
    • US5643493A
    • 1997-07-01
    • US615644
    • 1996-03-13
    • Kevin C. ConnorEric H. Hillier
    • Kevin C. ConnorEric H. Hillier
    • C09K5/20C23F11/08C09K5/00C23F11/00
    • C23F11/08C09K5/20
    • The invention described herein is a corrosion inhibitor concentrate, and a method for preparation thereof, which may be formulated free of nitrites, nitrates, amines, and phosphates. The inhibitor concentrate is a "single part" synergistic combination of inhibitors, stabilizers, and antifoam agents, useful for reinhibition of recycled antifreeze/coolant. The inhibitor concentrate is efficacious for corrosion inhibition in coolants across a broad range of glycol quality. The inhibitor concentrate comprises specific amounts of water, triazole, alkali metal hydroxide, borate, alkali metal silicate, silicate stabilizer, and anti-foaming agent.
    • 本文描述的发明是缓蚀剂浓缩物及其制备方法,其可以配制成不含亚硝酸盐,硝酸盐,胺和磷酸盐。 抑制剂浓缩物是抑制剂,稳定剂和消泡剂的“单一部分”协同组合,可用于重新抑制再循环的防冻剂/冷却剂。 抑制剂浓缩物对于广泛的二醇质量的冷却剂中的腐蚀抑制是有效的。 抑制剂浓缩物包含特定量的水,三唑,碱金属氢氧化物,硼酸盐,碱金属硅酸盐,硅酸盐稳定剂和消泡剂。
    • 36. 发明授权
    • Method of inhibiting corrosion in aqueous systems using poly(amino acids)
    • 使用聚(氨基酸)在含水体系中抑制腐蚀的方法
    • US5531934A
    • 1996-07-02
    • US304063
    • 1994-09-12
    • Michael B. FreemanWilliam M. HannYi H. PaikGraham Swift
    • Michael B. FreemanWilliam M. HannYi H. PaikGraham Swift
    • C23G5/02C09K8/54C11D3/37C23F11/08C23F11/173C11D3/06
    • C09K8/54C11D3/3719C23F11/08C23F11/173
    • The present invention provides a method of inhibiting corrosion of ferrous metals in aqueous systems. The corrosion is inhibited by adding an effective amount of one or more poly(amino acids) to the aqueous system. Aqueous systems include for example water treatment systems and equipment used for detergent applications. The poly(amino acids) comprise a reaction product of at least one compound selected from amino acids, amic acids, ammonium salts of monoethylenically unsaturated dicarboxylic acids, ammonium salts of hydroxypolycarboxylic acids and combinations thereof.In one embodiment the poly(amino acids) are added to detergent solutions to inhibit corrosion in equipment for detergent applications. In another embodiment, corrosion inhibitors comprising one or more homopolymers of amino acids and one or more pyrophosphates are added to aqueous systems to inhibit corrosion.
    • 本发明提供一种抑制含水体系中黑色金属腐蚀的方法。 通过向水性体系中加入有效量的一种或多种聚(氨基酸)来抑制腐蚀。 水系统包括例如用于洗涤剂应用的水处理系统和设备。 聚(氨基酸)包含至少一种选自氨基酸,酰胺酸,单烯属不饱和二羧酸的铵盐,羟基多羧酸的铵盐及其组合的化合物的反应产物。 在一个实施方案中,将聚(氨基酸)加入到洗涤剂溶液中以抑制用于洗涤剂应用的设备中的腐蚀。 在另一个实施方案中,包含一种或多种氨基酸均聚物和一种或多种焦磷酸盐的腐蚀抑制剂被加入到含水体系中以抑制腐蚀。