US PATENT SUBCLASS 585 / 267
.~.~ Using alkaline metal material


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

250  DF  ADDING HYDROGEN TO UNSATURATED BOND OF HYDROCARBON, I.E., HYDROGENATION {10}
266  DF  .~ Hydrocarbon is aromatic {3}
267.~.~ Using alkaline metal material


DEFINITION

Classification: 585/267

Using alkaline metal material:

(under subclass 266) Subject matter wherein the hydrogenation takes place in the presence of lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium or barium in free or combined form.