Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰酸
要原料，制备了一种耐光型水性聚氨皮革涂饰剂。
词
词
的，烃的;;
;类;;Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰酸要原料，制备了一种耐光型水性聚氨皮革涂饰剂。
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/脂肪胺催化体系,丙烯酸和乙酸乙烯原料,通过乙烯
交换
应制备丙烯酸乙烯。
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
