Process for producing cation exchange membrane

Details Process for producing cation exchange membrane Process for producing cation exchange membrane

C - Chemistry, Metallurgy

08

J

18/13

C08J 5/22 (2006.01) C25B 13/08 (2006.01)

Patent

CA 1114114

ABSTRACT OF THE DISCLOSURE A cation exchange membrane is produced by impregnating a diene derivative having a carboxylic acid group and/or carbox- ylic acid convertible group into a cation exchange membrane made of a fluorinated polymer having at least one type of cation exchange groups having lower acidity than that of the sulfonic acid group wherein a ratio of sulfonic acid groups to total cation exchange groups on one surface is higher than that of the other surface effecting a partial polymerization of the diene derivative and dipping the resulting membrane into an organic solvent which is miscible with water and has a boiling point higher than 30°C at 760 mmHg; holding the membrane between a pair of smooth plates; and heating the membrane at a temperature from 50° to 180°C; and when a diene derivative having a carboxylic acid convertible group is used, converting said groups into carboxylic acid groups.

320867

Affiliated with

Also associated with

Rating

Process for producing cation exchange membrane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing cation exchange membrane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing cation exchange membrane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-938709