Patent ID: 7029559

Claim:
An ion exchange membrane comprising clays dispersed in ion-conducting polymeric film, said clays including a modified organic clay organized by at least one agent selected from the group consisting of CH 3 NH 3 + Cl − , CH 3 (CH 2 ) 2 NH 2 , CH 3 (CH 2 ) 3 NH 2 , CH 3 (CH 2 ) 7 NH 2 , CH 3 (CH 2 ) 9 NH 2 , CH 3 (CH 2 ) 11 NH 2 , CH 3 (CH 2 ) 15 NH 2 , CH 3 (CH 2 ) 17 NH 2 , HOOC(CH 2 ) 5 NH 2 , HOOC(CH 2 ) 11 NH 2 , (CH 3 ) 4 N + Cl − , CH 3 (CH 2 ) 17 NH(CH 3 ), CH 3 (CH 2 ) 17 N + (CH 3 )Br − , CH 3 (CH 2 ) 11 N + (CH 3 )Br − , (CH 3 (CH 2 ) 17 N + (CH 3 )Br − , CH 3 (CH 2 ) 17 N + (C 6 H 5 ) CH 2 (CH 3 ) 2 Br − , CH 3 (CH 2 ) 17 N + (HOCH 2 CH 2 )CH 3 Cl − , CH 3 (CH 2 ) 14 CH 2 (C 5 H 5 N + )Br − , H 2 N(CH 2 ) 6 NH 2 and H 2 N(CH 2 ) 12 NH 2 as a barrier material.