发明名称 |
PROCESS FOR MANUFACTURE OF PENTAERYTHRITOL DIPHOSPHITES |
摘要 |
A method is disclosed for the production of pentaerythritol diphosphites of high spiro isomer content. The pentaerythritol diphosphites are produced via sequential transesterification of pentaerythritol with a monophosphite followed by a substituted phenol or other alcohol, wherein the transesterification reactions are carried out under controlled conditions of temperature and pressure. The unique reaction conditions result in intermediate and final pentaerythritol diphosphites of high spiro isomer content and high total yield of the diphosphites.
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申请公布号 |
US2005131244(A1) |
申请公布日期 |
2005.06.16 |
申请号 |
US20030707402 |
申请日期 |
2003.12.11 |
申请人 |
DOVER CHEMICAL CORPORATION |
发明人 |
LARKE CARROLL W. |
分类号 |
C07F9/6574;(IPC1-7):C07F9/02 |
主分类号 |
C07F9/6574 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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