US PATENT SUBCLASS 508 / 252
.~.~.~.~.~ With compound having saturated or unsaturated triazine, azole, or pyridine ring

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}
243  DF  .~ Heterocyclic ring compound; a heterocyclic ring is one having as ring members only carbon and at least one hetero atom selected from nitrogen and chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) {4}
244  DF  .~.~ The hetero ring contains six members including nitrogen and carbon (e.g., pyridine, picoline salts, etc.) {7}
245  DF  .~.~.~ Chalcogen in the hetero ring {2}
251  DF  .~.~.~.~ Polycyclo ring system which contains the hetero ring as one of the cyclos (e.g., phenothiazines, etc.) {3}
252.~.~.~.~.~ With compound having saturated or unsaturated triazine, azole, or pyridine ring

DEFINITION

Classification: 508/252

With compound having saturated or unsaturated triazine, azole, or pyridine ring:

(under subclass 251) Compositions which contain, in addition to the polycyclo ring system having the hetero ring as one of the cyclos, a compound having a pyridine, triazine, or azole ring which may be saturated or unsaturated.

(1) Note. The pyridine ring is six-membered consisting of five carbons and one nitrogen. The triazine ring is six-membered consisting of three carbons and three nitrogens. The azole ring is five-membered and has at least two ring hetero atoms, of which at least one must be nitrogen.