Stabilizers with arylphosphinic structure for perfluoropolyether oils and greases
申请人:AUSIMONT S.p.A.
公开号:EP0203347A2
公开(公告)日:1986-12-03
New products having the structure of arylphosphines or of derivatives of arylphosphines with an oxygen or sulphur atom directly bonded to the phosphorus atom, containing perfluoroalkylether chains, characterized in that such chains are bonded to the benzene ring through a non-perfluorinated bridge, and are obtained by a process substantially decreasing their production costs, and suitable to be used as stabilizers of perfluoropolyether oils and greases to prevent their degradation in the presence of metals, and the corrosion of the same metals, such as, e.g., Al, Ti, V, or their alloys, when operating in oxidizing and high-temperature environments.
具有芳基膦或芳基膦衍生物结构、氧原子或硫原子与磷原子直接结合、含有全氟烷基醚链的新产品,其特征在于这些链通过非全氟桥键与苯环结合,并通过一种可大幅降低其生产成本的工艺获得,适合用作全氟聚醚油和润滑脂的稳定剂,以防止它们在金属存在下降解,并防止同类金属的腐蚀,例如......g.,Al、Ti、V 或其合金在氧化和高温环境中工作时的腐蚀。