US PATENT SUBCLASS 562 / 603
.~.~.~.~ Preparation by halogenating acid or anhydride

Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
512  DF  .~.~ Acyclic {14}
602  DF  .~.~.~ Halogen {3}
603.~.~.~.~ Preparation by halogenating acid or anhydride

DEFINITION

Classification: 562/603

Preparation by halogenating acid or anhydride:

(under subclass 602) Processes wherein the acid is prepared by introducing halogen into an acyclic carboxylic acid or its anhydride.