US PATENT SUBCLASS 570 / 203
.~.~.~ Oxyhalogenation

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

Internet Version by PATENTEC © 1999      Terms of Use


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
190  DF  .~.~ Processes of preparing, purifying, or recovering benzene ring containing compound {9}
203.~.~.~ Oxyhalogenation

DEFINITION

Classification: 570/203

Oxyhalogenation:

(under subclass 190) Process wherein an elemental oxygen and hydrogen halide are reacted to produce halogen in situ and introduce halogen into a benzene ring containing compound.

(1) Note. The hydrogen halide may be introduced, as such, or may be produced in situ, for instance, as a by-product.