US PATENT SUBCLASS 523 / 143
.~.~.~.~ Phenolic, amine, or ketone condensate with aldehyde

Current as of: June, 1999
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523 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ 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 {71}
139  DF  .~.~ Composition related to metal foundry molding or metallurgical furnace or process of preparing {6}
142  DF  .~.~.~ Organic polyisocyanate or derived from polyisocyanate {1}
143.~.~.~.~ Phenolic, amine, or ketone condensate with aldehyde

DEFINITION

Classification: 523/143

Phenolic, amine or ketone condensate with aldehyde:

(under subclass 142) Subject matter wherein the composition contains or reacts with a phenol-aldehyde, aldehyde-ketone, or amine-aldehyde condensate.

(1) Note. Included herein are condensation products formed from aldehydes or aldehyde derivatives. See the Class 520 Glossary for a definition of the term "aldehyde or aldehyde derivative".