US PATENT SUBCLASS 525 / 486
.~.~.~.~.~ Specified material contains nitrogen


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}
480  DF  .~.~ Solid polymer or specified intermediate condensation product derived from at least one phenolic reactant and at least one aldehyde or aldehyde-type reactant or polymer therefrom {10}
481  DF  .~.~.~ Mixed with reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom {6}
485  DF  .~.~.~.~ With specified material {1}
486.~.~.~.~.~ Specified material contains nitrogen


DEFINITION

Classification: 525/486

Specified material contains nitrogen:

(under subclass 485) Subject matter wherein the specified material contains a nitrogen atom.