US PATENT SUBCLASS 508 / 574
.~.~.~.~ Overbased or carbonated (e.g., overbased sulfurized phenates, etc.)

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}
567  DF  .~ Organic sulfur compound (e.g., mercaptans, etc.) {2}
569  DF  .~.~ Sulfides (i.e., plural carbons bonded directly to a single sulfur atom or sulfur chain) {3}
572  DF  .~.~.~ Having plural -OH substituted benzene rings bonded directly to the sulfur atom or sulfur chain wherein H of-OH may be replaced by metal or ammonium; (e.g., sulfurized calcium alkylphenolates, etc.) {2}
574.~.~.~.~ Overbased or carbonated (e.g., overbased sulfurized phenates, etc.)

DEFINITION

Classification: 508/574

Overbased or carbonated (e.g., overbased sulfurized phenates, etc.):

(under subclass 572) Compositions wherein the organic sulfur compound is overbased or carbonated.

(1) Note. An overbased compound herein is one in which an amount of metal (e.g., Mg, Ca, Ba, Sr) is present which is greater than the stoichiometric amount of metal which would be present if the phenolic sulfur compound were completely neutralized.

(2) Note. A carbonated compound herein is the complex resulting from the reaction of carbon dioxide with metal phenate.