US PATENT SUBCLASS 523 / 305
.~.~ Adding material to maintain a stated equilibrium condition wherein the added material does not merely displace an equal amount from the treatment zone

Current as of: June, 1999
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523 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF {71}
305.~.~ Adding material to maintain a stated equilibrium condition wherein the added material does not merely displace an equal amount from the treatment zone

DEFINITION

Classification: 523/305

Adding material to maintain a stated equilibrium condition wherein the added material does not merely displace an equal amount from the treatment zone:

(under subclass 1) Process of treating or forming a desired or intentional composition wherein nondisplacing material is added in order to maintain a stated equilibrium condition.

(1) Note. The material does not merely displace an equal amount from the zone as in a series of weirs but replaces material which has been removed by some other mechanism, e.g., distillation, etc.

(2) Note. The state equilibrium is a desired condition and any nonspecific means of measuring this equilibrium is

included. If the equilibrium condition is measured according to a specific test or measurement then the process is classified in subclass 303 supra.

SEE OR SEARCH THIS CLASS, SUBCLASS:

343, for looped flow system.