US PATENT SUBCLASS 528 / 162
.~.~.~ With nitrogen-containing reactant

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}
86  DF  .~ FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE {15}
129  DF  .~.~ With aldehyde or derivative {18}
162.~.~.~ With nitrogen-containing reactant {2}
163  DF  .~.~.~.~> Nitrogen-containing reactant is a heterocyclic ring compound containing at least one nitrogen atom as a ring member or is nitrogen-containing aromatic compound
164  DF  .~.~.~.~> Nitrogen-containing reactant contains the -N-C(=O)-N- group

DEFINITION

Classification: 528/162

(under subclass 129) Subject matter wherein a phenol or inorganic phenolate is reacted with an aldehyde or derivative

and with at least one additional reactant which contains at least one nitrogen atom which is not a phenol, inorganic phenolate, or an aldehyde or derivative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

149, for a nitrogen-containing phenolic reactant.