US PATENT SUBCLASS 570 / 221
.~.~.~.~.~ Acetylene reactant

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}
219  DF  .~.~.~ Plural diverse reactions in separate zones {2}
220  DF  .~.~.~.~ Dehalogenation or dehydrohalogenation with halogenation in separate zones {2}
221.~.~.~.~.~ Acetylene reactant

DEFINITION

Classification: 570/221

Acetylene reactant:

(under subclass 220) Process wherein acetylene is employed in a step in such a way that is becomes a source of carbon in the final product.