US PATENT SUBCLASS 526 / 219
.~.~.~.~.~ Organic N-N or N=N containing compound also contains at least one S or O chemically bound therein

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
89  DF  .~.~ Polymerizing in the presence of a specified material other than monomer {28}
217  DF  .~.~.~ Material contains organic nitrogen compound {2}
218.1  DF  .~.~.~.~ Organic compound contains N=N or N-N group {5}
219.~.~.~.~.~ Organic N-N or N=N containing compound also contains at least one S or O chemically bound therein

DEFINITION

Classification: 526/219

(under subclass 218.1) Subject matter wherein the organic nitrogen containing compound having the -N-N or N=N group has at least one atom of sulfur or oxygen chemically bound therein.