US PATENT SUBCLASS 526 / 213
.~.~.~ Material contains carboxylic acid, salt, ester, or anhydride thereof

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}
89  DF  .~.~ Polymerizing in the presence of a specified material other than monomer {28}
213.~.~.~ Material contains carboxylic acid, salt, ester, or anhydride thereof {3}
214  DF  .~.~.~.~> Derived from carboxylic acid containing at least one atom of halogen or sulfur
215  DF  .~.~.~.~> Derived from carboxylic acid containing at least one atom of nitrogen
216  DF  .~.~.~.~> Derived from aliphatic acid

DEFINITION

Classification: 526/213

(under subclass 89) Subject matter wherein the specified material contains at least one compound which has a carboxylic acid group, salt, ester, or anhydride thereof.

(1) Note. This subclass includes oxalic acid, formic acid and derivatives thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

192, for a polymerization process in the presence of a compound wherein the hydrogen atom of a carboxylic acid group has been replaced by a heavy metal atom.

227+, for an organic per-acid.

237+, for an organic complex or boron trihalide or aluminum

trihalide wherein the organic portion of the complex is derived from a carboxylic acid. SEE OR SEARCH CLASS

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

525, Synthetic Resins or Natural Rubbers,

1+, for a resin composition containing a fat, fatty oil acid or salt thereof as an additive, or for a fat, fatty oil, fatty oil acid or salt thereof which is capable of reacting with or is part of a resinous material.