US PATENT SUBCLASS 523 / 146
.~.~.~.~ With or derived from carboxylic acid or salt thereof, or organic sulfur material

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

Internet Version by PATENTEC © 1999      Terms of Use


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}
145  DF  .~.~.~ Phenolic or amine or ketone condensate with aldehyde {2}
146.~.~.~.~ With or derived from carboxylic acid or salt thereof, or organic sulfur material

DEFINITION

Classification: 523/146

With or derived from carboxlic acid or salt thereof or organic sulfur material:

(under subclass 145) Subject matter wherein the composition contains or reacts with a carboxylic acid, carboxylic acid salt, or organic sulfur material.

(1) Note. A composition using benzenesulfonic acid as curing catalyst would be classified herein.

(2) Note. See the Class 520 Glossary for a definition of the term "carboxylic acid or derivative" which encompasses salt.