发明授权
US5369207A Preparation of low-viscosity, isocyanurate and urethane group-containing
polyisocyanate mixtures
失效
制备低粘度，异氰脲酸酯和含氨基甲酸酯基团的多异氰酸酯混合物
- 专利标题： Preparation of low-viscosity, isocyanurate and urethane group-containing polyisocyanate mixtures
- 专利标题（中）： 制备低粘度，异氰脲酸酯和含氨基甲酸酯基团的多异氰酸酯混合物
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申请号： US90419申请日： 1993-07-12
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公开(公告)号： US5369207A公开(公告)日： 1994-11-29
- 发明人: Stefan Wolff , Hans Renz , Guenter Mohrhardt
- 申请人： Stefan Wolff , Hans Renz , Guenter Mohrhardt
- 申请人地址： DEX Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX Ludwigshafen
- 优先权： DEX4229183 19920902
- 主分类号： C07D251/34
- IPC分类号： C07D251/34 ; C08G18/02 ; C08G18/28 ; C08G18/78 ; C08G18/79 ; C08G18/80 ; C09D175/00 ; C09D175/12 ; C08G18/30
摘要：
A process for the preparation of isocyanurate and urethane group-containing and, if desired, uretdiode and allophanate group-containing polyisocyanate mixtures by partially cyclizing organic, preferably (cyclo)aliphatic diisocyanates, in the presence of trimerization catalysts, deactivating these catalysts, reacting the partially trimerized, isocyanurate and, if desired, uretdiode group-containing polyisocyanate mixture with 0.5 to 10 mol % of at least one aliphatic or cycloaliphatic alcohol and/or polyoxyalkylene alcohol, and separating off the monomeric diisocyanates.
公开/授权文献
- US6131162A Digital data authentication method 公开/授权日：2000-10-10
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