发明名称 |
Accelerated polymerization of 2-pyrrolidone |
摘要 |
A novel method of utilizing quaternary ammonium compounds to accelerate the polymerization of 2-pyrrolidone is disclosed. The method consists of dehydrating the hygroscopic quaternary ammonium compound by adding it to 2-pyrrolidone and distilling over, under vacuum, a portion of the pyrrolidone whereby the water is removed and then adding the residue to a conventional anhydrous polymerization mixture composed of an alkali metal salt of 2-pyrrolidone dissolved in 2-pyrrolidone and effecting polymerization by adding a polymerization initiator and heating the mixture to a temperature ranging from about room temperature to about 60 DEG C.
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申请公布号 |
US4268660(A) |
申请公布日期 |
1981.05.19 |
申请号 |
US19800129401 |
申请日期 |
1980.03.10 |
申请人 |
BARNES, CARL E.;BARNES, ARTHUR C. |
发明人 |
BARNES, CARL E.;BARNES, ARTHUR C. |
分类号 |
C08G69/24;(IPC1-7):C08G69/24 |
主分类号 |
C08G69/24 |
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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