US PATENT SUBCLASS 508 / 523
.~.~.~.~ Alkaline earth metal, aluminum, or heavy metal salt of the hydroxy carboxylic acid

Current as of: June, 1999
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508 /   HD   SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS

110  DF  LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.) {53}
459  DF  .~ Organic -C(=O)O- compound {19}
516  DF  .~.~ Chalcogen attached indirectly to the -C(=O)O- group by nonionic bonding {3}
519  DF  .~.~.~ 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.) {4}
523.~.~.~.~ Alkaline earth metal, aluminum, or heavy metal salt of the hydroxy carboxylic acid

DEFINITION

Classification: 508/523

Alkaline earth metal, aluminum, or heavy metal salt of the hydroxy carboxylic acid:

(under subclass 519) Compositions wherein the -C(=O)O- compound is in the form of a salt, the salifying agent being an alkaline earth metal, aluminum, or a heavy metal.

(1) Note. Arsenic is considered as a heavy metal.

(2) Note. Heavy metals are those with a specific gravity greater than 4.0.