义词Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰
为主要原料，制备了一种耐光型水性聚氨皮革涂饰剂。
盐(
)苯Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰为主要原料，制备了一种耐光型水性聚氨皮革涂饰剂。
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乙溶剂中反应来制备对硝基异氰苯的
法，
讨论了其最佳工艺条件。
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