US PATENT SUBCLASS 528 / 329.1
.~.~.~ With two or more reactants one of which is a carboxylic acid or derivative thereof which is devoid of an amine group and one reactant which is a polyamine which is devoid of a carboxylic acid group or carboxylic acid derivative group

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}
271  DF  .~ FROM CARBOXYLIC ACID OR DERIVATIVE THEREOF {10}
310  DF  .~.~ From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid {9}
329.1.~.~.~ With two or more reactants one of which is a carboxylic acid or derivative thereof which is devoid of an amine group and one reactant which is a polyamine which is devoid of a carboxylic acid group or carboxylic acid derivative group

DEFINITION

Classification: 528/329.1

(under subclass 310) Subject matter wherein a polymer has been derived from at least three reactants with the proviso that (1) at least one reactant is an amino-containing carboxylic acid or carboxylic acid derivative of an amino-containing carboxylic acid; (2) a second reactant is a carboxylic acid or derivative which is devoid of any amino groups, and (3) a third reactant is polyamine which is devoid of any carboxylic acid groups or carboxylic acid derivative groups.

SEE OR SEARCH THIS CLASS, SUBCLASS:

263, (2) Note, for an explanation of the term "polyamine".

SEE OR SEARCH CLASS

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