US PATENT SUBCLASS 525 / 376
.~.~.~.~ Nitrogen-containing compound has at least one nitrogen-to-nitrogen bond

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}
374  DF  .~.~.~ Chemical treating agent is a nitrogen-containing compound {5}
376.~.~.~.~ Nitrogen-containing compound has at least one nitrogen-to-nitrogen bond

DEFINITION

Classification: 525/376

Nitrogen-containing compound has at least one nitrogen-to-nitrogen bond:

(under subclass 374) Subject matter wherein the nitrogen compound contains a nitrogen atom bonded to at least one atom of nitrogen (e.g., azo, hydrazine, N2[end subscrpt]F4, etc.).