13879-35-1Relevant articles and documents
Two-stage method and one-pot synthesis method for preparing aliphatic diisocyanate
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Paragraph 0174; 0175; 0176, (2017/10/11)
The invention relates to a two-stage method and one-pot synthesis method for preparing aliphatic diisocyanate. The two-stage method or the one-pot synthesis method is adopted for preparing aliphatic diisocyanate through aliphatic diamine and diaryl carbonic ester. Also, aliphatic polyamine and diaryl carbonic ester also can be used for preparing polyisocyanates. According to the synthesis method provided by the invention, phosgene or highly toxic reagents and a chlorinated solvent are not adopted during the whole process.