High-purity piperazine pyrophosphate and method for producing same
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...
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Main Author | |
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Format | Patent |
Language | English |
Published |
11.10.2006
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Subjects | |
Online Access | Get full text |
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Summary: | 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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Bibliography: | Application Number: CN2004825664 |