Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.

选择脂肪族异氰酸为主，制备了一种耐光型水性聚氨皮革涂。

The article is about how to use phosgene and p-nitrophenylamine to react in acetic ether's liquefier to produce p-nitro-phenyl isocyanate, Its best technological condition have been discussed.

介绍用光气和对硝基苯胺在乙酸乙中反应来制备对硝基异氰酸苯的方法，并讨论了其最佳工艺条件。