发明名称 |
High purity piperazine pyrophosphate and process of producing same |
摘要 |
The present invention provides piperazine pyrophosphate represented by chemical formula (I) which has a sodium content of 10 ppm or lower and a process of producing the same. The piperazine pyrophosphate has high purity and provides a flame retardant composition exhibiting excellent flame retardancy. The process includes dehydration condensation of piperazine diphosphate and is able to produce the piperazine pyrophosphate at low cost.
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申请公布号 |
US7449577(B2) |
申请公布日期 |
2008.11.11 |
申请号 |
US20040563478 |
申请日期 |
2004.08.27 |
申请人 |
ADEKA CORPORATION |
发明人 |
KIMURA RYOJI;MURASE HISASHI;NAGAHAMA MASARU;KAMIMOTO TETSUO;NAKANO SINJI |
分类号 |
C07F9/02;C07D295/02;C08K5/51;C09K21/12 |
主分类号 |
C07F9/02 |
代理机构 |
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