US PATENT SUBCLASS 526 / 318.2
.~.~.~ Carboxylic acid contains two or more carboxyl groups

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
317.1  DF  .~.~ From carboxylic acid monomer {7}
318.2.~.~.~ Carboxylic acid contains two or more carboxyl groups {1}
318.25  DF  .~.~.~.~> With hydrocarbon, vinyl chloride or vinylidene chloride monomer

DEFINITION

Classification: 526/318.2

Carboxylic acid contains two or more carboxyl groups:

(under subclass 317.1) Subject matter wherein the carboxylic acid monomer contains two or more free carboxyl groups (e.g., maleic acid, fumaric acid, etc.).