US PATENT SUBCLASS 528 / 161
.~.~.~ With at least one reactant which is other than an aldehyde or derivative and which contains a carboxylic acid, anhydride thereof, salt thereof, or ester 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}
129  DF  .~.~ With aldehyde or derivative {18}
161.~.~.~ With at least one reactant which is other than an aldehyde or derivative and which contains a carboxylic acid, anhydride thereof, salt thereof, or ester thereof

DEFINITION

Classification: 528/161

(under subclass 129) Subject matter wherein a phenol or inorganic phenolate is reacted with at least one aldehyde or derivative and with an additional reactant which is a carboxylic acid, salt, or a carboxylic acid anhydride and which reactant is not a phenol, inorganic phenolate, or an aldehyde or a derivative thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148, for a phenolic reactant containing a carboxylic acid or carboxylic acid salt group.

271, for a definition of the term "carboxylic acid salt or anhydride".

SEE OR SEARCH CLASS

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