the organic compounds are mainly benzoic acid anhydride , benzophenone, and so on.
生成的有机化合物成分比较复杂,主要成分有苯甲酸酐、苯甲酮等。
by selecting or synthesising polyether polyol, and changing rigid foam formulations, the application of benzoic acid anhydride polyester polyols in polyurethane rigid foam is introduced in this paper.