发明授权
- 专利标题: Method for producing isocyanates
- 专利标题(中): 异氰酸酯的制备方法
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申请号: US12160433申请日: 2007-01-09
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公开(公告)号: US08026387B2公开(公告)日: 2011-09-27
- 发明人: Matthias Kloetzer , Eckhard Stroefer , Heinrich-Josef Blankertz
- 申请人: Matthias Kloetzer , Eckhard Stroefer , Heinrich-Josef Blankertz
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: EP06100315 20060113
- 国际申请: PCT/EP2007/050184 WO 20070109
- 国际公布: WO2007/082818 WO 20070726
- 主分类号: C07C249/00
- IPC分类号: C07C249/00
摘要:
The present invention relates to a multiple-stage process for the continuous preparation of organic, distillable polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the corresponding organic poly-amines with ureas to form low-molecular monomeric polyureas, and the thermal decomposition thereof.
公开/授权文献
- US20100274046A1 METHOD FOR PRODUCING ISOCYANATES 公开/授权日:2010-10-28
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