Intermediates for fluorinated cation exchange membrane

Details Intermediates for fluorinated cation exchange membrane Intermediates for fluorinated cation exchange membrane

1983-08-29

1986-07-01

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

260 53F, 260544F, 260543H, 260543R, 560150, 560153, 562605, 564209, 568 31, 568 41, 558437, C07C12116, C07C14308

Patent

active

045979138

ABSTRACT:
A novel fluorinated cation exchange membrane containing carboxylic acid groups and sulfonic acid groups, both in the form of a specific pendant structure, the carboxylic acid groups being at least 20% on one surface of the membrane and gradually decreasing toward the innerside of the membrane, which membrane is useful in electrolysis of an aqueous alkali metal halide solution with advantageously stable performance for a long term under more severe operational conditions than those conventionally used. The membrane can be prepared from a novel copolymer of a fluorinated olefin with a novel sulfur containing fluorinated vinylether of the formula: ##STR1## wherein k is 0 or 1, l is an integer of 3 to 5, Z is --S-- or --SO.sub.2 -- and R is C.sub.1 -C.sub.10 alkyl, an aryl, C.sub.1 -C.sub.10 perfluoroalkyl.

REFERENCES:
patent: 3062879 (1962-11-01), Drysdale
patent: 3437686 (1969-04-01), Slagel et al.
patent: 4151053 (1979-04-01), Seko et al.
patent: 4176215 (1979-11-01), Molnar et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1081503