US PATENT SUBCLASS 528 / 260
.~.~.~ Two or more >N-C(=X)-N< -containing reactants

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
230  DF  .~ FROM ALDEHYDE OR DERIVATIVE THEREOF AS REACTANT {12}
259  DF  .~.~ With >N-C(=X)-N< -containing reactant wherein X is a chalcogen atom {3}
260.~.~.~ Two or more >N-C(=X)-N< -containing reactants

DEFINITION

Classification: 528/260

(under subclass 259) Subject matter wherein two or more reactants containing groups are utilized, and wherein X is O, S, Se, or Te.