US PATENT SUBCLASS 528 / 172
.~.~.~ Nitrogen-containing compound is a reactant other than wherein nitrogen is solely present as a carboxylic acid derivative

Current as of: June, 1999
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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}
171  DF  .~.~ Sulfur reactant contains sulfur directly bonded to oxygen {3}
172.~.~.~ Nitrogen-containing compound is a reactant other than wherein nitrogen is solely present as a carboxylic acid derivative

DEFINITION

Classification: 528/172

(under subclass 171) Subject matter wherein a nitrogen-containing compound is a reactant and wherein the nitrogen atom is other than solely as the nitrogen atom of a carboxylic acid derivative, i.e., amide, nitrile, or lactam.

(1) Note. The nitrogen atom may be in any of the reactants (other than solely as carboxylic acid derivatives) and the sulfur-to-oxygen group may be in any of the other reactants, or they may be in the same nonphenolic reactant, or in the same phenolic reactant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

170, for a phenolic reactant containing an imide group, or for the reaction of a phenolic reactant and an amide-containing reactant.

173, for a reactant wherein nitrogen is solely part of a

carboxylic acid amide, nitrile, or lactam.

271, for a definition of a carboxylic acid derivative.