US PATENT SUBCLASS 508 / 242
.~.~ An additional reactant is a phenol, a thiophenol, a carboxylic acid, or salt thereof

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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}
221  DF  .~ Compound of indeterminate structure, prepared by reacting a heterocyclic compound of known structure; a heterocyclic ring is one having as ring members only carbon and at least one hetero atom selected from nitrogen and chalcogen (oxygen, sulfur, selenium, or tellurium) {9}
242.~.~ An additional reactant is a phenol, a thiophenol, a carboxylic acid, or salt thereof

DEFINITION

Classification: 508/242

An additional reactant is a phenol, a thiophenol, a carboxylic acid, or salt thereof:

(under subclass 221) Compositions wherein a phenol, a phenol salt, a thiophenol, a thiophenol salt, a carboxylic acid, or a carboxylic acid salt is an additional reactant.