US PATENT SUBCLASS 524 / 754
.~.~.~.~ Plural hetero oxygen


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}
751  DF  .~.~.~ Heterocyclic chalcogen compound as DNRM {3}
754.~.~.~.~ Plural hetero oxygen


DEFINITION

Classification: 524/754

Plural hetero oxygen:

(under subclass 751) Subject matter wherein the heterocyclic chalcogen compound contains two or more oxygen atoms in the same heterocyclic ring or two or more oxygen containing heterocyclic rings.