Lubricating oil additive and method and apparatus for making same
OwnerMalte Huthinventor
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Abstract
A method for producing a dispersion of polytetrafluoroethylene in lubricating oil or a lubricating oil additive. A non-ionic wetting agent is mixed with a dispersion of polytetrafluoroethylene in oil, and the resulting mixture is subjected to a heat treatment in several zones starting with a shock treatment, and followed by several zones of progressively lower temperature.
Claims9
A method for producing a dispersion of polytetrafluoroethylene in oil which comprises forming a mixture comprising polytetrafluoroethylene powder dispersed in oil which also contains a non-ionic wetting agent, subjecting the mixture to a shock heat treatment in which the oil is transferred into a zone heated at a temperature above 200.degree. C. up to the decomposition temperature of the non-ionic wetting agent, and then subjecting the mixture to one or more tempering treatments at progressively lower temperatures.
Dependencies are inferred from the claim text.