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::: 技術移轉

專利名稱 Process for preparing a mixture of amino-containing phosphazenes
專利證號 US6265599B1
國別 美國
獲證日期 2001-07-24
專利摘要 The present invention provides a process for preparing a mixture of amino-containing phosphazenes having the following general formula (I) by reacting a (NPCl 2) nphosphazene mixture with NH 3and HOR in the presence of a tertiary amine catalyst: N nP n(NH 2) x(OR) 2n-x (l) wherein n≧3, 1≦x<2n, and R is phenyl or C3-C6 alkyl. In addition to simultaneously carrying out amination and esterification, the process of the present invention also simultaneously performs a regeneration of the catalyst. Furthermore, the invented process is a water-free process without the problem of a large quantity of waste water. Ammonium chloride, a by-product of the invented process, can be recovered in a subsequent process. The present invention provides a process for preparing a mixture of amino-containing phosphazenes having the following general formula (I) by reacting a (NPCl2)n phosphazene mixture with NH3 and HOR in the presence of a tertiary amine catalyst:wherein n>=3, 1<=x<2n, and R is phenyl or C3-C6 alkyl. In addition to simultaneously carrying out amination and esterification, the process of the present invention also simultaneously performs a regeneration of the catalyst. Furthermore, the invented process is a water-free process without the problem of a large quantity of waste water. Ammonium chloride, a by-product of the invented process, can be recovered in a subsequent process.

IPC國際分類號

C07F000906 | C07F00096581 | C07F00096593