US PATENT SUBCLASS 508 / 494
.~.~.~.~.~.~ Ether or thioether chalcogen attached indirectly to the -C(=O)O- groups (e.g., polyethyleneglycol esters, etc.)

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}
459  DF  .~ Organic -C(=O)O- compound {19}
463  DF  .~.~ Specified compound wherein the single bonded oxygen is bonded oxygen is bonded directly to an additional carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon (i.e., specified carboxylic acid ester) {6}
465  DF  .~.~.~ Plural -C(=O)O- groups attached directly or indirectly to each other by nonionic bonding (e.g., estolides of hydroxy carboxylic acids, etc.) {8}
485  DF  .~.~.~.~ Esterified alcohol is polyhydroxy alcohol (e.g., pentaerythritol tetraalkanoate, etc.) {3}
492  DF  .~.~.~.~.~ Polycarboxylic acid esterifies polyhydroxy alcohol {2}
494.~.~.~.~.~.~ Ether or thioether chalcogen attached indirectly to the -C(=O)O- groups (e.g., polyethyleneglycol esters, etc.)

DEFINITION

Classification: 508/494

Ether or thioether chalcogen attached indirectly to the -C(=O)O- groups (e.g., polyethyl-eneglycol esters, etc.):

(under subclass 492) Compositions wherein the -C(=O)O- groups are attached indirectly to an ether or thioether chalcogen.