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22. 发明授权

US5209869A Vapor phase corrosion inhibitor-dessiccant material 失效
标题翻译：气相腐蚀抑制剂 - 干燥剂材料
公开(公告)号：US5209869A
公开(公告)日：1993-05-11
申请号：US905953
申请日：1992-06-29
申请人： Boris A. Miksic , Tsi-Zong Tzou , Joseph M. Foley
发明人： Boris A. Miksic , Tsi-Zong Tzou , Joseph M. Foley
IPC分类号： B32B27/18 , C23F11/02
CPC分类号： C23F11/02 , B32B27/18
摘要： A vapor phase corrosion inhibitor-desiccant formulation comprising silica gel granules coated with a finely divided anhydrous molybdate selected from the group consisting of anhydrous sodium molybdate, anhydrous ammonium dimolybdate, and anhydrous amine molybdates having the structural formula: ##STR1## wherein R.sub.1 is an aliphatic hydrocarbon having up to 7 carbon atoms, and wherein R.sub.2 is either hydrogen or an aliphatic hydrocarbon having up to 7 carbon atoms with these anhydrous molybdates being provided in admixture with sodium nitrite and benzotriazole. The composite formulations of the present invention have been found to be particularly desirable as a vapor phase corrosion inhibitor when in contact with the environs of metals susceptible to corrosion including, for example, iron, aluminum, copper, and alloys such as alloys of iron, copper, and the like. The vapor phase corrosion inhibitors appear to exhibit improved properties when utilized as a powdered coating upon granular silica gel. In a preferred embodiment, the amine-molybdate compounds are those amine-molybdates derived from dicyclohexylamine, 2-ethylhexylamine, and cyclohexylamine. When incorporated as a powdered coating upon silica gel granules, the amine-molybdates have vapor pressures which contribute to enhanced protection against corrosion, as well as a continued or ongoing availability of that protection. When provided in admixture with sodium nitrite and benzotriazole, these composite materials find particular applicability for extrusion with polyolefin films such as polyethylene and polypropylene, and with such films being capable of forming laminates with metallized second film layers.
摘要翻译：一种气相腐蚀抑制剂 - 干燥剂制剂，其包含用选自无水钼酸钠，无水二钼酸铵和无水胺钼酸盐的细碎无水钼酸盐涂覆的硅胶颗粒，其具有以下结构式：其中R1是脂族具有至多7个碳原子的烃，其中R2是氢或具有至多7个碳原子的脂族烃，这些无水钼酸盐与亚硝酸钠和苯并三唑的混合物提供。已经发现本发明的复合制剂作为气相腐蚀抑制剂在与易受腐蚀的金属的环境接触时是特别理想的，包括例如铁，铝，铜以及诸如铁，铜等。当用作颗粒状硅胶上的粉末涂料时，气相腐蚀抑制剂似乎表现出改善的性能。在优选的实施方案中，胺 - 钼酸盐化合物是衍生自二环己基胺，2-乙基己基胺和环己胺的那些胺 - 钼酸盐。当作为粉末涂料掺入硅胶颗粒时，胺 - 钼酸盐具有有助于增强防腐蚀保护的蒸气压，以及该保护的持续或持续的可用性。当与亚硝酸钠和苯并三唑的混合物提供时，这些复合材料特别适用于聚烯烃膜如聚乙烯和聚丙烯的挤出，并且这些膜能够形成具有金属化的第二膜层的层压体。

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