US PATENT SUBCLASS 570 / 233
.~.~.~.~.~ To acetylene

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
216  DF  .~.~ Processes of preparing, purifying, or recovering unsaturated compound {12}
231  DF  .~.~.~ Addition reaction of free halogen or hydrogen halide to carbon to carbon unsaturation {1}
232  DF  .~.~.~.~ To triple bond {1}
233.~.~.~.~.~ To acetylene

DEFINITION

Classification: 570/233

To acetylene:

(under subclass 232) Process wherein the triple bond containing compound is acetylene, per se.