US PATENT SUBCLASS 524 / 720
.~.~.~.~.~.~ Plural hetero N, i.e., same or different ring

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}
700  DF  .~.~ Preparation of intentional or desired composition by formation of a solid polymer (SP) or SICP in presence of a designated nonreactant material (DNRM) other than solely water, hydrocarbon, silicon dioxide, glass, titanium dioxide or elemental carbon, composition thereof; or process of treating or composition thereof {23}
714  DF  .~.~.~ N-containing organic compound excluding unsubstituted ammonium as sole nitrogen in DNRM {10}
717  DF  .~.~.~.~ Heterocyclic structure other than per se N-alkyl pyrrolidone {1}
718  DF  .~.~.~.~.~ Hetero nitrogen {2}
720.~.~.~.~.~.~ Plural hetero N, i.e., same or different ring

DEFINITION

Classification: 524/720

Plural hetero N, i.e., same or different ring:

(under subclass 718) Subject matter wherein the compound containing nitrogen in a heterocyclic ring contains more than one heterocyclic nitrogen atom as either members of one ring or in two or more rings.