Organic polymer solution
AssigneeNitto Denko Corporation
InventorsYoshihiro Uetani, Masao Abe, Akira Ohtani, Minoru Ezoe
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Abstract
An organic polymer solution comprising an organic solvent and, dissolved therein, (a) an organic polymer which has an imino-p-phenylene structural unit of the formula ##STR1## as a major repeating unit and is organic solvent-soluble, (b) a protonic acid having a pK.sub.a value of 4.8 or less or a derivative thereof, (c) at least one member selected from the group consisting of an oxidizing agent which does not have oxidizing ability at ordinary temperature but has oxidizing ability at temperatures not lower than 60.degree. C., and an oxidation catalyst.
Claims3
An organic polymer solution comprising an organic solvent and, dissolved therein,
- (a) an organic polymer which has an imino-p-phenylene structural unit of the formula ##STR14## as a major repeating unit and is organic solvent-soluble, (b) a protonic acid having a pK.sub.a value of 4.8 or less or a derivative thereof,
- (c) at least one oxidizing agent which does not have oxidizing ability at ordinary temperature but has oxidizing ability at temperatures not lower than 60.degree. C., selected from the group consisting of a thiuram-type compound represented by the formula ##STR15## wherein Ra, Rb, Rc, and Rd each independently represents an alkyl group and x is an integer of from 1 to 6, a sulfenamide-type compound represented by the formula ##STR16## wherein Re and Rf each independently represents hydrogen atom, an alkyl group, or an alkylene group, or an oxime-type compound represented by the formula ##STR17## wherein Rg and Rh each independently represents hydroxyl group or benzoyl group and an oxidation catalyst.
Dependencies are inferred from the claim text.