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

选择族异氰酸酯为主要原，了一种耐光型水性聚氨酯革涂饰剂。

An efficient palladium-cocatalyst system for vinylation of unsaturated carboxylic acid has been exploited,among which aliphatic amines(ALA)are firstly used as cocatalysts.

以醋酸钯/邻菲洛/胺为催化体系,丙烯酸和乙酸乙烯酯为原,通过乙烯基交换反应丙烯酸乙烯酯。