US PATENT SUBCLASS 205 / 520
.~.~.~.~.~.~.~ Membrane having two or more different ion exchange groups in a single layer

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

334  DF  ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION) {21}
464  DF  .~ Preparing inorganic compound {9}
477  DF  .~.~ Metal containing compound produced {11}
508  DF  .~.~.~ Hydroxide {2}
510  DF  .~.~.~.~ Alkali metal containing {3}
516  DF  .~.~.~.~.~ And elemental halogen produced {4}
517  DF  .~.~.~.~.~.~ Utilizing structurally defined diaphragm or membrane or diaphragm or membrane other than nonstructurally defined single layer cation exchange membrane having single-type cation exchange groups (e.g., anion exchange membrane, etc.) {7}
520.~.~.~.~.~.~.~ Membrane having two or more different ion exchange groups in a single layer

DEFINITION

Classification: 205/520

Membrane having two or more different ion exchange groups in a single layer:

(under subclass 517) Subject matter wherein a membrane containing two or more different ion exchange groups are utilized during synthesis.

(1) Note. This subclass can include a mixture of cationic exchange groups (e.g., carboxylic, sulfonic, and phosphoric groups; cationic and anionic groups; etc.).