US PATENT SUBCLASS 568 / 773
.~.~.~.~.~.~ Preparing hydroquinones from an acetylene and carbon monoxide

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}
700  DF  .~.~ Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) {10}
715  DF  .~.~.~ Benzene ring containing {8}
716  DF  .~.~.~.~ Phenols (H of -OH may be replaced by a Group IA or IIA light metal) {14}
763  DF  .~.~.~.~.~ Polyhydroxy (H of -OH may be replaced by a Group IA or IIA light metal) {10}
773.~.~.~.~.~.~ Preparing hydroquinones from an acetylene and carbon monoxide

DEFINITION

Classification: 568/773

Preparing hydroquinones from an acetylene and carbon

monoxide:

(under subclass 763) Processes which include reacting an acetylene with carbon monoxide to form a compound which includes: [figure]