US PATENT SUBCLASS 34 / 303
.~.~ By adding congealing or thickening agent


Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

282  DF  PROCESS {24}
302  DF  .~ Congealing or thickening {3}
303.~.~ By adding congealing or thickening agent


DEFINITION

Classification: 34/303

By adding congealing or thickening agent:

(under subclass 302) Process wherein a substance is mixed with the material treated which does not result in a chemical reaction with the treated material but the result of the interaction is a congealing or thickening of the material treated.

(1) Note. This subclass differs from subclasses 329+ in that the processes in this subclass involve treating a flowable material to increase its viscosity, while subclasses 329+, which also provide for the addition of a treating agent, involve treating both flowable and nonflowable material to produce a solid or particulate mass.