US PATENT SUBCLASS 508 / 579
.~.~ Ethers


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}
577  DF  .~ Organic oxygen compound {3}
579.~.~ Ethers {2}
580  DF  .~.~.~> Ring bonded directly to the ether oxygen {1}
582  DF  .~.~.~> Halogen attached indirectly to the ether oxygen by nonionic bonding


DEFINITION

Classification: 508/579

Ethers:

(under subclass 577) Compositions wherein an oxygen atom is bonded directly to two carbon atoms, i.e., is an ether oxygen.

(1) Note. An example of a component provided for herein are polyoxyalkylene glycol.