US PATENT SUBCLASS 525 / 351
.~.~.~.~ Organic compound contains sulfur and nitrogen atoms


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.~.~.~.~ Organic compound contains sulfur and nitrogen atoms {1}
352  DF  .~.~.~.~.~> One or more sulfur atoms of the nitrogen-containing compound are double bonded to carbon


DEFINITION

Classification: 525/351

Organic compound contains sulfur and nitrogen atoms:

(under subclass 343) Subject matter wherein the chemical treating is performed in the presence of an organic compound which contains at least one sulfur atom and at least one nitrogon atom.