公开(公告)号：US3480495A

公开(公告)日：1969-11-25

申请号：US3480495D

申请日：1966-07-11

Applicant: IONICS

Inventor： SOHN BERNARD I ,  EISENMANN JOHN L ,  ALEXANDER SAMUEL S

IPC: C08J5/22 ,  B32B35/00

CPC classification number: C08J5/2287 ,  Y10T428/192

公开(公告)号：US3321514A

公开(公告)日：1967-05-23

申请号：US35154564

申请日：1964-03-12

Applicant: IONICS

Inventor： EISENMANN JOHN L

CPC classification number: C07C51/12

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.

公开(公告)号：US3356607A

公开(公告)日：1967-12-05

申请号：US38431664

申请日：1964-07-22

Applicant: IONICS

Inventor： EISENMANN JOHN L ,  ALEXANDER SAMUEL S

IPC: C08J5/22

CPC classification number: C08J5/2275 ,  C08J2323/12 ,  C08J2339/08

Abstract: 1,049,549. Laminates. IONICS Inc. July 5. 1965 [July 22, 1964], No. 28312/65. Heading B5N. An ion-exchange membrane comprises at least one layer of a preferably open-structure woven fabric of synthetic or mineral fibres and at least one unwoven layer of such fibres, the latter being an outer layer, the layers being impregnated with a polymerizable resin mix converted or convertible into an ion-exchange resin. Preferably one woven layer sandwiched between two unwoven layers are used. The fibres of the layers may be of polyester, polyamide, polyacrylic, polyvinylidene chloride, polypropylene or P.T.F.E. resins, or rayon, or glass or asbestos, or mixtures of such fibres. The resin mix may comprise divinyl benzene cured with benzoyl peroxide and treated subsequently with chlormethyl ether, being then converted into a quaternary ammonium salt with aqueous trimethylamine to produce an anionexchange resin, or treated with H 2 SO 4 to produce a cation-exchange material. Impregnation may be effected by pouring the mix on to the assembly of layers between glass plates.