US PATENT SUBCLASS 508 / 444
.~.~ The single bonded chalcogen 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., thiocarboxy esters)

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}
443  DF  .~ Organic -C(=X)X- compound, wherein the X's are the same or diverse chalcogens, with at least one X being sulfur {1}
444.~.~ The single bonded chalcogen 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., thiocarboxy esters) {1}
445  DF  .~.~.~> Chalcogen bonded directly to the carbon of the -C(=X)X-group (e.g., xanthate esters, trithiocarbonate esters, etc.)

DEFINITION

Classification: 508/444

The single bonded chalcogen 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, thiocarboxy esters):

(under subclass 443) Compositions wherein an additional carbon, which may be single bonded to any atom but may be multiple bonded only to carbon, is bonded directly to the single bonded X.

(1) Note. The components provided for herein are esters of thiocarboxy compounds.

(2) Note. An example of a component provided for herein is: C8H17[end subscrpt]-C(O)S-CH2[end subscrpt]-C(O)OCH3