US PATENT SUBCLASS 528 / 206
.~.~ Phenolic reactant contains at least one carboxylic acid group or is derivative thereof

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}
206.~.~ Phenolic reactant contains at least one carboxylic acid group or is derivative thereof {3}
207  DF  .~.~.~> Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom
208  DF  .~.~.~> Nitrogen-containing reactant
209  DF  .~.~.~> With nonphenolic compound having at least two hydroxyl groups or salts thereof as reactant

DEFINITION

Classification: 528/206

(under subclass 86) Subject matter wherein a phenol, phenol ether, or inorganic phenolate containing at least one carboxylic acid group, or a carboxylic acid derivative thereof is a reactant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

170, for a polymer derived from an imide-containing phenol, phenol ether, or inorganic phenolate.

176, for a polymer derived from a phenolic reactant and at least one reactant which is a polycarboxylic acid or a polycarboxylic acid derivative, and for a definition of what is considered as being a polycarboxylic acid derivative.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "carboxylic acid".