A novel one-step polyol process by using control agents is reported.
开发了一种添加控制剂的新的一步多元醇法。
The method proposed has the advantages of sample treatmenting simple, rapid and accurate, and can be applied to the production process of polyether polyol.
由于样品处理简单、应用浓度直读法读取数据，可快速准确地测定试样，适用于聚醚多元醇生产过程中间品的检验。
The manufacturing process and the reaction mechanism of polyether polyol are resumed.
概述了聚醚多元醇的生产过程及反应机理。
A saturated hydroxy polyester resin has been prepared with polycarboxylic acid and polyol at the presence of catalyst and chain transfer agent by the direct melt esterification process.
在催化剂、链支化剂存在下多元酸和多元醇直接熔融酯化、常压缩聚合成饱和羟基聚酯。
A saturated hydroxy polyester resin has been prepared with polycarboxylic acid and polyol at the presence of catalyst and chain transfer agent by the direct melt esterification process.
在催化剂、链支化剂存在下多元酸和多元醇直接熔融酯化、常压缩聚合成饱和羟基聚酯。
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