发明授权
- 专利标题: Method for producing isocynates
- 专利标题(中): 异氰酸酯的制备方法
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申请号: US10480240申请日: 2003-12-10
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公开(公告)号: US06833469B2公开(公告)日: 2004-12-21
- 发明人: Andreas Wölfert , Christian Müller , Eckhard Stroefer
- 申请人: Andreas Wölfert , Christian Müller , Eckhard Stroefer
- 优先权: DE10129233 20010619
- 主分类号: C07C26300
- IPC分类号: C07C26300
摘要:
The invention relates to a process for the production of isocyanates by reaction of primary amines with phosgene, in which isocyanate is used as solvent, wherein some or all of isocyanate used as solvent is added to the reaction mixture only after the amine and phosgene have been physically combined.
公开/授权文献
- US20040192959A1 Method for producing isocynates 公开/授权日:2004-09-30
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