US PATENT SUBCLASS 530 / 416
.~.~.~ Ion exchange

Current as of: June, 1999
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530 /   HD   CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF

350  DF  PROTEINS, I.E., MORE THAN 100 AMINO ACID RESIDUES {14}
412  DF  .~ Separation or purification {6}
415  DF  .~.~ Selective absorbtion, e.g., Ca phosphate sorbents, etc. {2}
416.~.~.~ Ion exchange

DEFINITION

Classification: 530/416

Ion exchange:

(under subclass 415) Process in which separation of a protein from a liquid is effected by a solid insoluble material which captures from the liquid a dissociated charged chemical moiety and releases to the liquid a different charged moiety of the same polarity.

(1) Note. See Class 210, subclass 660 for comprehensive treatment of the disposition of ion exchange processes in that and other related classes.

(2) Note. [figure]