US PATENT SUBCLASS 525 / 352
.~.~.~.~.~ One or more sulfur atoms of the nitrogen-containing compound are double bonded to carbon

Current as of: June, 1999
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525 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
343  DF  .~.~.~ Chemical treating agent contains a sulfur atom {8}
351  DF  .~.~.~.~ Organic compound contains sulfur and nitrogen atoms {1}
352.~.~.~.~.~ One or more sulfur atoms of the nitrogen-containing compound are double bonded to carbon

DEFINITION

Classification: 525/352

One or more sulfur atoms of the nitrogen-containing compound are double bonded to carbon:

(under subclass 351) Subject matter wherein the chemical treating is performed in the presence of an organic compound which contains at least one atom of sulfur and at least one nitrogen atom, with the proviso that at least one sulfur atom therein is double bonded to a carbon atom, i.e.,.