US PATENT SUBCLASS 521 / 185
.~.~.~.~.~ Carbocyclic reactant containing -C-C(=X)-X, e.g., containing carboxyl, etc.

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {3}
50  DF  .~ CELLULAR PRODUCTS OR PROCESSES OF PREPARING A CELLULAR PRODUCT, E.G., FOAMS, PORES, CHANNELS, ETC. {27}
182  DF  .~.~ Cellular product derived from a -C-C(=X)-X containing reactant wherein X is a chalcogen atom, e.g., phthalic acid, etc. {1}
183  DF  .~.~.~ Nitrogen containing reactant {1}
184  DF  .~.~.~.~ Nitrogen reactant contains at least two amino nitrogen atoms {1}
185.~.~.~.~.~ Carbocyclic reactant containing -C-C(=X)-X, e.g., containing carboxyl, etc.

DEFINITION

Classification: 521/185

Carbocyclic -C X containing reactant:

(under subclass 184) Subject matter wherein the -C X containing reactant is part of a compound which contains a carbocyclic ring.