US PATENT SUBCLASS 508 / 240
.~.~.~.~ Nitrogen attached directly or indirectly to the hydroxy group by nonionic bonding

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
232  DF  .~.~ The heterocyclic compound reactant contains a carboxylic acid anhydride ring {7}
239  DF  .~.~.~ An additional reactant is a hydroxylamine or an alcoholic or phenolic hydroxy compound {1}
240.~.~.~.~ Nitrogen attached directly or indirectly to the hydroxy group by nonionic bonding

DEFINITION

Classification: 508/240

Nitrogen attached directly or indirectly to the hydroxy group by nonionic bonding:

(under subclass 239) Compositions wherein the hydroxy group of the additional reactant is attached directly or indirectly to nitrogen by nonionic bonding.