The polyurethane waterproofing paint without tar is produced with certain liquid hydroxylated resin instead of coal tar.
以一定量液态的羟基树脂替代煤焦油制作无焦油型聚氨酯防水涂料。
Treatment of 1, 3-diketones containing benzoyloxy group in 1% aqueous sodium hydroxide can afford directly the corresponding ring-A hydroxylated flavone.
用1%的氢氧化钠水溶液处理带有芳酰氧基的1,3 -丙二酮衍生物可以直接得到A环带有羟基的黄酮化合物。
With both low MPS concentration and suitable immersion time, a well-ordered and closely self-assembled MPS layers could be prepared on the hydroxylated surface.
较低的溶液浓度和适宜的反应时间有利于MPS分子在羟基化表面形成排列规则、结合紧密的自组装膜层。
The present invention relates to a process for the manufacture of alkenylated hydroxylated aromatic compounds, of chroman compounds and of their acylated derivatives.
本发明涉及一种用于制备链烯基化的羟化芳族化合物、苯并二氢吡喃化合物和其酰化衍生物的方法。
Results Curdione was hydroxylated by Aspergillus niger AS 3.739 which was screened from dozens of fungi, and the two major products 1 and 2 were separated and identified.
结果从数十株丝状真菌筛选得到黑曲霉AS 3.739对莪术二酮具有羟基化修饰作用，并分离、纯化和鉴定了2种主要产物1 、2 。
An ink composition is disclosed including a liquid vehicle and an ionically charged organic pigment and a hydroxylated hydrocarbon humectant having at least two hydroxyl groups.
油墨的组成是一个公开，包括液体和离子键车辆收取有机颜料和羟基碳氢化合物保湿至少有两个羟基。
An ink composition is disclosed including a liquid vehicle and an ionically charged organic pigment and a hydroxylated hydrocarbon humectant having at least two hydroxyl groups.
油墨的组成是一个公开，包括液体和离子键车辆收取有机颜料和羟基碳氢化合物保湿至少有两个羟基。
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