[C:1]1(N)[CH:6]=[CH:5][CH:4]=[C:3]([NH2:7])[CH:2]=1.C1(N)C=CC(N)=CC=1.C1(CN)C=CC=C(CN)C=1.C1(CN)C=CC(CN)=CC=1.NC1(N)C=CC(C2C=CC=CC=2)=CC1.NC1C=CC(CC2C=CC(N)=CC=2)=CC=1.NC1C=C[C:70]([O:73]C2C=CC(N)=CC=2)=CC=1.NC1C=CC(S(C2C=CC(N)=CC=2)(=O)=O)=CC=1.NC1C=CC(C(C2C=CC(N)=CC=2)(C)C)=CC=1>>[NH2:7][C:3]1[CH:4]=[CH:5][CH:6]=[CH:1][CH:2]=1.[CH2:70]=[O:73]Examples of the preferable polyamine include metaphenylene diamine, paraphenylene diamine, metaxylylene diamine, paraxylylene diamine, 4,4-diaminobiphenyl, bis(4-aminophenyl)methane, bis(4-aminophenyl)ether, bis(4-aminophenyl)sulfone, 2,2-bis(4-aminophenyl)propane, melanins having s-triazine rings, and polyamine obtained by a reaction between aniline and formaldehyde (usually, an decanuclear or less substance is preferably used).
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