The blocking reaction of N-methylaniline with aromatic isocyanates and aromatic polyisocyanates occur faster when compared to the aliphatic isocyanates.

• 对N封闭反应与芳香族异氰酸酯和芳香族聚异氰酸酯甲基苯胺发生得更快相比，脂肪族异氰酸酯。