公开(公告)号：US3607706A

公开(公告)日：1971-09-21

申请号：US3607706D

申请日：1967-08-04

Applicant: IONICS

Inventor： EISENMANN JOHN L ,  ROACH EDWARD T ,  SCIESZKO ANTHONY

IPC: C08J5/22 ,  B01K3/10

CPC classification number: C08J5/2218

Abstract: A method of making laminated multilayered, reinforced, cationexchange membranes of a styrene-divinylbenzene, diethylbenzene solvated structure, whereby the organic solvating medium is substituted by equilibration with a polar solvent, such as methanol, before the polymerized structure is sulfonated with concentrated sulfuric acid.