US PATENT SUBCLASS 203 / 64
.~.~.~ Polyhydroxy alcohol or ether derivative thereof

Current as of: June, 1999
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203 /   HD   DISTILLATION: PROCESSES, SEPARATORY

50  DF  ADDING MATERIAL TO DISTILLAND EXCEPT WATER OR STEAM PER SE {2}
57  DF  .~ Organic compound {8}
63  DF  .~.~ Alcohol or ether {3}
64.~.~.~ Polyhydroxy alcohol or ether derivative thereof

DEFINITION

Classification: 203/64

(under subclass 63) Processes in which the compound is polyhydroxy alcohol or an ether derivative thereof.