US PATENT SUBCLASS 508 / 429
.~.~ Chalcogen attached 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}
429.~.~ Chalcogen attached indirectly to the phosphorus by nonionic bonding {2}
430  DF  .~.~.~> The chalcogen, X, is part of a -C(=X)- group
431  DF  .~.~.~> Plural carbons bonded directly to the chalcogen or to a chain of chalcogens {1}


DEFINITION

Classification: 508/429

Chalcogen attached indirectly to the phosphorus by nonionic bonding:

(under subclass 421) Compositions wherein the phosphorus is attached indirectly to chalcogen by nonionic bonding.

(1) Note. An example of a component provided for herein is

(CH3O)2[end subscrpt]P(S)SCH2CH2[end subscrpt]OH