US PATENT SUBCLASS 560 / 77
.~.~.~.~ Producing carboxyl group by oxidation

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


560 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
1  DF  .~ Carboxylic acid esters {14}
8  DF  .~.~ Aromatic acid moiety {9}
76  DF  .~.~.~ Polycarboxylic acid {11}
77.~.~.~.~ Producing carboxyl group by oxidation

DEFINITION

Classification: 560/77

Producing carboxyl group by oxidation:

(under subclass 76) Processes wherein at least one of the carboxyl groups of the acid is formed by oxidizing an aromatic material.

(1) Note. This subclass includes, for example, the oxidation of xylene or toluic acid either in the presence of an alcohol or with a subsequent esterification to form the dicarboxylic acid esters.