Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
脂肪族异氰酸酯为主要原料，制备了一种耐光型水性聚氨酯皮革涂饰剂。
,脂肪质
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Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
脂肪族异氰酸酯为主要原料，制备了一种耐光型水性聚氨酯皮革涂饰剂。
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/邻菲洛林/脂肪胺为催化体系,丙烯酸和乙酸乙烯酯为原料,通过乙烯
交换反应制备丙烯酸乙烯酯。
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