US PATENT SUBCLASS 205 / 521
.~.~.~.~.~.~.~ Multilayered membrane


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}
521.~.~.~.~.~.~.~ Multilayered membrane


DEFINITION

Classification: 205/521

Multilayered membrane:

(under subclass 517) Subject matter wherein a membrane having more than one layer is utilized during synthesis.