US PATENT SUBCLASS 508 / 255
.~.~.~ Plural nitrogens in the hetero 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}
255.~.~.~ Plural nitrogens in the hetero ring {3}
256  DF  .~.~.~.~> Polycyclo ring system which contains the hetero ring as one of the cyclos
257  DF  .~.~.~.~> Triazines {1}
259  DF  .~.~.~.~> 1,4-Diazines {1}

DEFINITION

Classification: 508/255

Plural nitrogens in the hetero ring:

(under subclass 244) Compositions wherein the six-membered hetero ring has plural nitrogen ring members.

(1) Note. An example of the type component provided for herein is monocyclic pyrimidine (1,3-diazine) compounds.