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

选择脂氰酯为主要原料，制备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.

以醋钯/邻菲洛林/脂胺为催化体系,丙乙乙酯为原料,通过乙基交换反应制备丙乙酯。