US PATENT SUBCLASS 524 / 726
.~.~.~.~ Formamide or N,N-dialkyl amide or N-alkyl pyrrolidone


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}
726.~.~.~.~ Formamide or N,N-dialkyl amide or N-alkyl pyrrolidone {1}
727  DF  .~.~.~.~.~> With metal-containing material DNRM


DEFINITION

Classification: 524/726

Formamide or N, N-dialkyl amide or N-alkyl pyrrolidone:

(under subclass 714) Subject matter wherein the nitrogen containing organic compound is as illustrated below where alkyl is an aliphatic hydrocarbon moiety. [figure]