US PATENT SUBCLASS 568 / 605
.~.~.~.~.~ Ion exchange resin or sulfuric acid utilized

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
579  DF  .~.~ Ethers {11}
591  DF  .~.~.~ Plural oxygens bonded directly to the same carbon (e.g., acetals, ketals, orthoesters, orthocarbonates, etc.) {2}
594  DF  .~.~.~.~ Acyclic {6}
605.~.~.~.~.~ Ion exchange resin or sulfuric acid utilized

DEFINITION

Classification: 568/605

Ion Exchange resin or sulfuric acid utilized:

(under subclass 594) Processes wherein an ion exchange resin or sulfuric acid is utilized in preparing the compound.