US PATENT SUBCLASS 508 / 298
.~.~.~.~ With metal compound, or organic phosphorus or sulfur compound

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}
268  DF  .~.~ The hetero ring contains five members including nitrogen and carbon (e.g., polyvinylpyrrolidone, etc.) {4}
297  DF  .~.~.~ Having a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, attached directly or indirectly to the hetero ring by acyclic nonionic bonding (e.g., vinylpyrrolidone-acrylate copolymers, etc.) {1}
298.~.~.~.~ With metal compound, or organic phosphorus or sulfur compound

DEFINITION

Classification: 508/298

With metal compound, or organic phosphorus or sulfur

compound:

(under subclass 297) Compositions which contain, in addition to the hetero ring containing component, an organic sulfur compound, an organic phosphorus compound, or an organic compound that contains metal.

(1) Note. An organic sulfur compound is one wherein sulfur is attached directly or indirectly by nonionic bonding to carbon of an organic compound. Organic phosphorus compound is similarly defined.

(2) Note. See Notes to the Class Definition for the definition of an organic compound.