摘要:
An lubricant composition comprising a C4 to C15 fluorooxirane fluid having a boiling point ≧20° C., and a lubricant soluble or dispersible therein, is provided.
摘要:
Methods of using reactive gases containing a perfluoroketone having 4 to 7 carbon atoms for removing unwanted deposits that build up in a vapor reactor, for etching dielectric and metallic materials in a vapor reactor, and for doping a material in a vapor reactor are described. The perfluoroketones perform as well as or better than the standard perfluorocarbons used in the semiconductor industry but have minimal impact on global warming.
摘要:
A lubricant composition comprising a perfluoropolyether lubricant and fluorinated ketone solvent is described. The lubricant composition can be applied as a coating to a substrate such as magnetic media. After the coating dries, a thin uniform lubricant film covers the substrate surface. The fluorinated ketone solvent can solubilize a wide range of perfluoropolyether compounds but not potential contaminants such as water and hydrocarbons. Additionally, the solvent has low potential to adversely affect global warming.
摘要:
A method for cleaning a vapor reactor by applying a liquid cleaning agent comprising a fluorinated ketone having about 5 to about 10 carbon atoms and up to two hydrogen atoms is described. The fluorinated ketone has low global warming potential.
摘要:
Novel zeolite-containing particles. The particles are free-flowing, discrete, rounded, rigid, frangible, hollow, and opaque. The shell or wall of each particle is porous to gases and fluids. The particles are useful as catalysts for refining processes. They are essentially completely de-coked upon regeneration, and they retain their catalytic activity even after several cycles of use-regeneration.