US PATENT SUBCLASS 523 / 455
.~.~.~ Carboxylic acid or derivative devoid of heavy metal atom DNRM

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF {71}
400  DF  .~.~ Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof {24}
455.~.~.~ Carboxylic acid or derivative devoid of heavy metal atom DNRM

DEFINITION

Classification: 523/455

Boron DNRM:

(under subclass 440) Subject matter wherein the DNRM contains boron, e.g., boron nitride, etc.

(1) Note. See Class 520 Glossary for a definition of the term "carboxylic acid or derivative".

(2) Note. A heavy metal atom is an element having a specific gravity of four or greater.

SEE OR SEARCH THIS CLASS, SUBCLASS:

456, for a carboxylic acid or derivative containing a heavy metal atom.