US PATENT SUBCLASS 524 / 213
.~.~.~.~.~.~.~.~ Atom other than C, N, H, or chalcogen; or contains nitrogen or chalcogen atom other than as part of a N(C=X)

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
80  DF  .~.~.~ DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon {4}
81  DF  .~.~.~.~ Organic DNRM {21}
186  DF  .~.~.~.~.~ Organo nitrogen compound other than unsubstituted ammonium salt as sole nitrogen atom DNRM {12}
210  DF  .~.~.~.~.~.~ N-C=X group wherein X is a chalcogen {10}
211  DF  .~.~.~.~.~.~.~ N-(C=X)N, e.g., urea, etc. {5}
213.~.~.~.~.~.~.~.~ Atom other than C, N, H, or chalcogen; or contains nitrogen or chalcogen atom other than as part of a N(C=X)

DEFINITION

Classification: 524/213

Atom other than C, N, H, or chalcogen; or contains nitrogen or chalcogen atom other than as part of a N(C=X)N group:

(under subclass 211) Subject matter whereinthe N--N compound contains an atom other than H, N, C, or chalcogen; or contains a chalcogen or nitogen atom which is not part of the -N--N group.