Borate Esters (i.e., Compounds Having Boron And Carbon Each Single Bonded To The Same Oxygen, Which Carbon May Be Single Bonded To Any Atom But May Be Multiple Bonded Only To Carbon) Patents (Class 558/286)
  • Patent number: 4985157
    Abstract: Mixed alkoxylated alcohol-hydroquinone or alkoxylated alcohol-resorcinol borates are effective multifunctional antioxidants for lubricants.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: January 15, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Liehpao O. Farng, Andrew G. Horodysky, Robert E. Ernhoffer, John A. Keller, Jr.
  • Patent number: 4751017
    Abstract: Heterocyclic boron compounds of the formula IR.sup.1 --A.sup.1 --Z.sup.1 --A.sup.2 --R.sup.2 (I)can be used as components of liquid-crystal phases. A.sup.1 is --A--, --A.sup.4 --A--, or --A--A.sup.4 -- and A is ##STR1## .
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: June 14, 1988
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Andreas Wachtler, Joachim Krause, Rudolf Eidenschink, Jurgen Eichler, Bernhard Scheuble
  • Patent number: 4724099
    Abstract: A boron-containing heterocyclic compound prepared by reacting a primary amine or ammonia with an alkylene oxide or epoxide and then reacting concurrently or subsequently this reaction intermediate with a boric acid. This boron-containing heterocyclic compound may further be reacted with a metal, metaloid or other metal compound and even further contain sulfur, such as a sulfide group.The boron-containing heterocyclic compound provides extreme pressure anti-wear properties when provided in a lubricating composition. The lubricating composition may also comprise anti-oxidants, copper corrosion inhibitors, and lead corrosion inhibitors. The anti-wear properties of a lubricating composition can be enhanced using the borates of the present invention in conjunction with a copper compound.The boron-containing heterocyclic compound may be used in automatic transmission fluids alone, further reacted with an ester of a polyhydric alcohol or mixed with said ester.Automatic transmission fluid compositions are provided.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: February 9, 1988
    Assignee: Union Oil Company of California
    Inventors: Richard A. Holstedt, Michael C. Croudace