Ion exchange materials

Details Ion exchange materials Ion exchange materials

2006-10-24

2006-10-24

Lipman, Bernard (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S534000, C264S234000, C264S345000, C264S462000, C522S166000

Reexamination Certificate

active

07125935

ABSTRACT:
A method of preparing an ion-conducting material, for example membrane, having reduced sensitivity to water includes a step of treating an ion-conducting polymeric material (especially a sulphonated polyaryletherketone and/or sulphone) which has at least some crystallinity or which is crystallizable with a means to increase its crystallinity. The ion-conducting material prepared may be used in a Membrane Electrode Assembly of a fuel cell.

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patent: WO 01/19896 (2001-03-01), None
Specification and Claims of co-pending U.S. Appl. No. 10/070,826, filed Jun. 3, 2002, Nat'l Phase of PCT/GB00/03449, filed Jun. 3, 2002, now Int'l Publication No. WO 01/19896 A1.

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