(EP895548-A1)      Electrically non-conductive plate structure, for use in high pressure electrochemical cells employing ion-exchange membranes that creep or flow under pressure, comprises (a) a first and second surface; (b) a central bore; and (c) at least one through aperture that opens onto the first and second surfaces; in which (d) the plate structure is provided with means for impeding membrane creep or flow when the cells are subjected to high axial loadings, such that, when the first surface of one such plate structure forcibly contacts a first surface of an ion-exchange membrane employed in a high pressure electrochemical cell and when the first surface of a second such plate structure forcibly contacts a second surface of the membrane, the plate structure alone and collectively serve to contain, and thereby form a fluid tight seal with the membrane.Also claimed is a high pressure electrochemical cell employing at least one ion-exchange membrane that creeps or flows under pressure.    USE -   High pressure electrochemical cells using ion exchange membranes.    ADVANTAGE -   The electrochemical cells demonstrate improved adhesion between cell components and reduced membrane creep when subjected to high axial loadings, and capable of successfully operating at extremely high pressures for log periods of time by providing an electrically non-conductive plate structure or grip sheet that effects such reduced membrane creep or flow.    (US6037075-A)      Electrically non-conductive plate structure, for use in high pressure electrochemical cells employing ion-exchange membranes that creep or flow under pressure, comprises (a) a first and second surface; (b) a central bore; and (c) at least one through aperture that opens onto the first and second surfaces; in which (d) the plate structure is provided with means for impeding membrane creep or flow when the cells are subjected to high axial loadings, such that, when the first surface of one such plate structure forcibly contacts a first surface of an ion-exchange membrane employed in a high pressure electrochemical cell and when the first surface of a second such plate structure forcibly contacts a second surface of the membrane, the plate structure alone and collectively serve to contain, and thereby form a fluid tight seal with the membrane.Also claimed is a high pressure electrochemical cell employing at least one ion-exchange membrane that creeps or flows under pressure.    USE -   High pressure electrochemical cells using ion exchange membranes.    ADVANTAGE -   The electrochemical cells demonstrate improved adhesion between cell components and reduced membrane creep when subjected to high axial loadings, and capable of successfully operating at extremely high pressures for log periods of time by providing an electrically non-conductive plate structure or grip sheet that effects such reduced membrane creep or flow.    (JP2000511686-W)      Electrically non-conductive plate structure, for use in high pressure electrochemical cells employing ion-exchange membranes that creep or flow under pressure, comprises (a) a first and second surface; (b) a central bore; and (c) at least one through aperture that opens onto the first and second surfaces; in which (d) the plate structure is provided with means for impeding membrane creep or flow when the cells are subjected to high axial loadings, such that, when the first surface of one such plate structure forcibly contacts a first surface of an ion-exchange membrane employed in a high pressure electrochemical cell and when the first surface of a second such plate structure forcibly contacts a second surface of the membrane, the plate structure alone and collectively serve to contain, and thereby form a fluid tight seal with the membrane.Also claimed is a high pressure electrochemical cell employing at least one ion-exchange membrane that creeps or flows under pressure.    USE -   High pressure electrochemical cells using ion exchange membranes.    ADVANTAGE -   The electrochemical cells demonstrate improved adhesion between cell components and reduced membrane creep when subjected to high axial loadings, and capable of successfully operating at extremely high pressures for log periods of time by providing an electrically non-conductive plate structure or grip sheet that effects such reduced membrane creep or flow.    (EP895548-B1)      Electrically non-conductive plate structure, for use in high pressure electrochemical cells employing ion-exchange membranes that creep or flow under pressure, comprises (a) a first and second surface; (b) a central bore; and (c) at least one through aperture that opens onto the first and second surfaces; in which (d) the plate structure is provided with means for impeding membrane creep or flow when the cells are subjected to high axial loadings, such that, when the first surface of one such plate structure forcibly contacts a first surface of an ion-exchange membrane employed in a high pressure electrochemical cell and when the first surface of a second such plate structure forcibly contacts a second surface of the membrane, the plate structure alone and collectively serve to contain, and thereby form a fluid tight seal with the membrane.Also claimed is a high pressure electrochemical cell employing at least one ion-exchange membrane that creeps or flows under pressure.    USE -   High pressure electrochemical cells using ion exchange membranes.    ADVANTAGE -   The electrochemical cells demonstrate improved adhesion between cell components and reduced membrane creep when subjected to high axial loadings, and capable of successfully operating at extremely high pressures for log periods of time by providing an electrically non-conductive plate structure or grip sheet that effects such reduced membrane creep or flow.