The Chalcogen Is In An -oh Group Bonded To An Acyclic Carbon (wherein H Of -oh May Be Replaced By Metal, Ammonium, Or Substituted Ammonium; E.g., Lithium-12-hydroxy Stearate, Saponified Castor Oil, Etc.) Patents (Class 508/519)
With ether or alcohol (except glycerin) (Class 508/520)
With organic nitrogen compound (which may be present as the amine salt of the acid), hydrocarbon polymer or halohydrocarbon polymer (Class 508/521)
With hydrocarbon fatty acid or salt thereof, or complexes of such salt mixtures (Class 508/522)
Alkaline earth metal, aluminum, or heavy metal salt of the hydroxy carboxylic acid (Class 508/523)
  • Manufacturing method for the production of polyalphaolefin based synthetic greases (LAW500)
    Patent number: 5783531
    Abstract: A method is disclosed for improving the thickener yield in soap thickened polyalphaolefin base oil greases comprising the steps of (a) producing a simple or complex soap thickener in a quantity of a first PAO of viscosity lower than that of the base oil component in the final grease composition to produce a thickened PAO and (b) adding to the thickened PAO a quantity of a second PAO of viscosity higher than that desired of the base oil component in the final grease composition sufficient to produce a final grease product having the desired base oil viscosity.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: July 21, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: David Leslie Andrew, Brian Leslie Slack
  • Polyol ester compositions with unconverted hydroxyl groups for use as lubricant base stocks
    Patent number: 5698502
    Abstract: A synthetic ester composition which exhibits thermal and oxidative stability, lower friction coefficient and lower wear, wherein the ester composition comprises the reaction product of: a linear or branched alcohol having the general formula R(OH).sub.n, wherein R is an aliphatic or cyclo-aliphatic group having from about 2 to 20 carbon atoms and n is at least 2; and at least one linear and/or branched acid which has a carbon number in the range between about C.sub.4 to C.sub.20, wherein the synthetic ester composition has a hydroxyl number of between about greater than 5 to 180, preferably between about greater than 5 to 100, and more preferably between about 10 to 80.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: December 16, 1997
    Assignee: Exxon Chemical Patents Inc
    Inventors: Bernie J. Pafford, Jeenok T. Kim, Patrick E. Godici, Haven S. Aldrich, Richard H. Schlosberg, Martin A. Krevalis
  • Additives for lubricants
    Patent number: 5618778
    Abstract: The present invention relates to a composition containing a lubricant or hydraulic fluid and in an effective amount to improve extreme pressure and anti-wear properties of said lubricant or hydraulic fluid of at least one compound of the formula II ##STR1## R.sup.1, R.sup.2, and R.sup.3 together with the C atom to which they are bound are tert-C.sub.4 -C.sub.14 -alkyl. R.sup.4 is phenyl, --CH.sub.2 --CH.sub.2 --NH.sub.2, --CH.sub.2 CH.sub.2 OH, --CH.sub.2 CH(OH)--CH.sub.2 --OH, tert-C.sub.4 -C.sub.14 alkyl, --(CH.sub.2).sub.2 --S--CH(OH)--CH.sub.2 --S-(tert-C.sub.8 -C.sub.12 alkyl), --CH.sub.2 --COOH, --CH.sub.2 --COO--(i-C.sub.8 H.sub.17), --CH.sub.2 --CO--OH.H.sub.2 N-(tert-C.sub.10 -C.sub.16 -alkyl), --P(S)--[O--(i-C.sub.3 H.sub.7)].sub.2, --P(S)--[O--(i-C.sub.8 H.sub.17)].sub.2, .alpha.-naphthyl, benzothiazolyl, benzimidazolyl, thiazolyl, --CH.sub.2 --CH--(OH)--CH.sub.2 --S--R.sup.10 wherein R.sup.10 is tertiary C.sub.4 -C.sub.14 -alkyl, or R.sup.4 is radical ##STR2## R.sup.1, R.sup.2 and R.sup.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: April 8, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Hermann O. Wirth, Hans-Helmut Friedrich