Carboxylate Salt, With No Free Acid Present Patents (Class 508/539)
  • Patent number: 5670463
    Abstract: A light-duty, multi-purpose lubricant particularly formulated for use on the diverse bearing surfaces mechanisms which operate in a dirty or dusty environment, such as bicycle chains. The lubricant comprises an insoluble soap, preferably Calcium Stearate in suspension in a volatile solvent-based solution of paraffin wax, petrolatum and a surfactant. After application and evaporation of the solvent the composite dry lubricant exhibits good penetration and load bearing properties without the dirt-retaining character of greases. The optional surfactant is surrounded and deactivated by the other components so that the dried lubricant is water repelling. The undissolved particles of soap combine with dirt particles to break-down portions of the lubricant into a dry flaky dust which is sloughed off the mechanism. Soluble waxes having different solid phase crystalline structures may be blended with the paraffin to reduce the rate of sloughing.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: September 23, 1997
    Inventor: Paul D. Maples
  • Patent number: 5614478
    Abstract: The present invention includes an aerosol grease precursor composition adapted to be sprayed and a pressurized aerosol grease precursor composition in a dispensing container. The present invention also includes a method of dispensing an aerosol grease composition.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: March 25, 1997
    Assignee: Aerospace Lubricants, Inc.
    Inventor: Stephen E. Gates
  • Patent number: 5595965
    Abstract: An environmentally friendly lubricating grease composition as well as several processes for preparing the grease composition is desecribed which comprises(A) a base oil wherein the base oil is a natural oil or synthetic triglyceride of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are aliphatic groups that contain from about 7 to about 23 carbon atoms and(B) a thickener wherein the thickener (B) is a reaction product of (B1) a metal based material and (B2) a carboxylic acid or its ester, wherein the metal based material (B1) comprises a metal oxide, metal hydroxide, metal carbonate or metal bicarbonate, wherein the metal is an alkali or alkaline earth metal and wherein the carboxylic acid (B2) is of the formula R.sup.4 (COOR.sup.5).sub.n where R.sup.4 is an aliphatic or hydroxy substituted aliphatic group that contains from 4 to about 29 carbon atoms, R.sup.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: January 21, 1997
    Assignee: The Lubrizol Corporation
    Inventor: Gary W. Wiggins