US PATENT SUBCLASS 508 / 423
.~.~ Additional phosphorus attached directly or indirectly to the phosphorus by nonionic bonding

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}
421  DF  .~ Organic phosphorus compound, wherein the phosphorus is single bonded directly to chalcogen by nonionic bonding (e.g., phosphorus acids, esters, etc.) {7}
423.~.~ Additional phosphorus attached directly or indirectly to the phosphorus by nonionic bonding {3}
424  DF  .~.~.~> Plural phosphori bonded to the same chalcogen or chain of chalcogens (e.g., pyrophosphates, etc.)
425  DF  .~.~.~> Nitrogen attached directly or indirectly to the phosphorus by nonionic bonding
426  DF  .~.~.~> Having -C(=O)O- attached indirectly to the phosphorus by nonionic bonding

DEFINITION

Classification: 508/423

Additional phosphorus attached directly or indirectly to the phosphorus by nonionic bonding:

(under subclass 421) Compositions wherein an additional phosphorus is attached directly or indirectly to the phosphorus by nonionic bonding.

(1) Note. An example of a component provided for herein is [(C6H5[end subscrpt]O)2P-OCH2[end subscrpt]]4C