Process for depositing a fluorocarbonsulfonic ionomer on a suppo

Details Process for depositing a fluorocarbonsulfonic ionomer on a suppo Process for depositing a fluorocarbonsulfonic ionomer on a suppo

1996-12-20

1999-01-26

Cameron, Erma

Coating processes

With post-treatment of coating or coating material

Solvent vapor treatment of coating

427350, 427384, B05D 304

Patent

active

058636102

ABSTRACT:
A process for preparing articles having a fluorocarbonsulfonic ionomer layer, such as membranes and catalysts, is disclosed wherein the fluorocarbonsulfonic ionomer is deposited upon support using an new annealing process. The annealing process of the present invention includes the step of heating a fluorocarbonsulfonic ionomer coated substrate in the presence of a vaporous solvent. This process provides for fluorocarbonsulfonic ionomer coated articles which can be annealed quickly at temperatures below the degradation point of many desirable support materials.

REFERENCES:
patent: 3684747 (1972-08-01), Coalson et al.
patent: 4478695 (1984-10-01), Ezzell et al.
patent: 4661411 (1987-04-01), Martin et al.
patent: 4731263 (1988-03-01), Martin et al.
patent: 5258202 (1993-11-01), Pellegrino et al.
Anal. Chem. 1986, vol. 58, 2569-2570, Moore III et al.
R. B. Moore, III; C. R. Martin; Chemical and Morphological Properties of Solution--Cast Perfluorosulfonate Ionomers; Macromolecules 1988, vol. 21 pp. 1334-1339.

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