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

选择脂肪族异氰主要原料，制备了一种耐光型水性聚氨革涂饰剂。

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/脂肪胺催,丙烯和乙乙烯原料,通过乙烯基交换反应制备丙烯乙烯。