发明名称 |
PROCESS FOR THE PRODUCTION OF A CARBODIIMIDE |
摘要 |
A process for the production of a carbodiimide, comprising the steps of: (1) reacting an amine represented by the following formula (A) with carbon disulfide in the presence of a catalyst at a reaction temperature of 50 to 150° C. to obtain a thiourea represented by the following formula (B): (In the above formula (A), R is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.) (In the above formula (B), R is as defined in the above formula (A).; (2) desulfurizing the obtained thiourea with a hypochlorite in the presence of a basic compound to obtain a carbodiimide represented by the following formula (C): (In the above formula (C), R is as defined in the above formula (A).); and (3) purifying the obtained carbodiimide. |
申请公布号 |
US2013085274(A1) |
申请公布日期 |
2013.04.04 |
申请号 |
US201113704117 |
申请日期 |
2011.06.15 |
申请人 |
SUZUKI KENJI;KATO TSUKASA;YAMADA TSUTOMU;KAMADA YUYA;SHOJI SHINICHIRO;TEIJIN LIMITED;KAWAGUCHI CHEMICAL INDUSTRY CO., LTD. |
发明人 |
SUZUKI KENJI;KATO TSUKASA;YAMADA TSUTOMU;KAMADA YUYA;SHOJI SHINICHIRO |
分类号 |
C07D498/10 |
主分类号 |
C07D498/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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