发明名称 |
PREPARATION OF POLYACETALS |
摘要 |
Case 7301(2) PREPARATION OF POLYACETALS A process for preparing polyacetals having less than 10% by weight carbonyl containing units and in which the molar ratio of acetal to furan units is greater than or equal to 15:1 is provided. The process comprises reacting a linear alternating polymer of carbon monoxide with one or more olefins (polyketone) with a diol at elevated temperature in the presence of an acid eg para-toluenesulphonic acid whilst continuously removing water generated by the reaction. Water is preferably removed by azeotropic distillation using a water-immiscible solvent.
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申请公布号 |
CA2021472(A1) |
申请公布日期 |
1991.01.19 |
申请号 |
CA19902021472 |
申请日期 |
1990.07.18 |
申请人 |
BRITISH PETROLEUM COMPANY P.L.C. (THE) |
发明人 |
LUCY, ANDREW R. |
分类号 |
C08G67/00;C08G67/02;(IPC1-7):C08G67/00 |
主分类号 |
C08G67/00 |
代理机构 |
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代理人 |
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地址 |
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