Both Sulfur And Sulfur Halide Are Reacted With The Organic Compound Patents (Class 508/323)
  • Patent number: 10227541
    Abstract: A lubricating oil composition for transmissions is provided which improves fuel saving properties and has excellent metal fatigue life and heat resistance. The composition contains 50 to 97 percent by mass of (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm2/s or higher and 3.5 mm2/s or lower, a pour point a ?25° C. or lower, a viscosity index of 105 or greater, a % CP of 85 or greater, a % CN of 2 or greater and 20 or less and a % CA of 3 or less; 3 to 10 percent by mass of (B) a monoester-based base oil having a 100° C. kinematic viscosity of 2 mm2/s or higher and 10 mm2/s or lower; and 150 to 400 ppm by mass as phosphorus of (C) a specific sulfur-containing phosphite ester. The composition has a 100° C. kinematic viscosity of 2.5 mm2/s or higher and 4.0 mm2/s or lower.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: March 12, 2019
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Kohei Masuda, Hitoshi Komatsubara, Hajime Nakao
  • Patent number: 5849677
    Abstract: This invention concerns a process for preparing a sulfurized olefin containing reduced amounts of thiones using a low molecular weight hydrocarbon to precipitate the thiones from the sulfurized olefin.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: December 15, 1998
    Assignee: Exxon Chemical Patents Inc
    Inventor: Michael Gerald Romanelli