Process for improving the shrinkage resistance upon-drying membr

Details Process for improving the shrinkage resistance upon-drying membr Process for improving the shrinkage resistance upon-drying membr

1975-04-02

1976-11-30

Schofer, Joseph L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

210321R, 260 22R, 260 47R, 260 793R, 526 56, 210321, C09G 104

Patent

active

039948609

ABSTRACT:
Sulphonated polyaryl ether membranes are rendered less susceptible to shrinkage during drying by immersing the membrane in a solution of an inorganic salt of a hydroxylated or carbonylated lower carboxylic acid.

REFERENCES:
patent: 3709841 (1973-01-01), Quentin
patent: 3717594 (1973-02-01), Ryan
patent: 3855122 (1974-12-01), Bowrganel
patent: 3856556 (1973-01-01), Quentin
patent: 3875096 (1975-04-01), Graefe et al.

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