发明名称 |
Method for making polymers from N-vinyl formamide monomer |
摘要 |
<p>The present invention is directed to precipitation polymerization processes for the manufacture of polymers prepared from N-vinyl formamide monomer, the processes including the steps of contacting the N-vinyl formamide monomer with a polymerization medium containing t-butanol as diluent and a free-radical initiator, under conditions effective to polymerize the N-vinyl formamide monomer, thereby forming a precipitate of the polymer in the polymerization medium, substantially isolating the precipitated polymer from the polymerization medium, contacting the substantially isolated polymer with a wash containing a different diluent than the t-butanol used in the polymerization and isolating the washed polymer from the wash.</p> |
申请公布号 |
EP0942016(A2) |
申请公布日期 |
1999.09.15 |
申请号 |
EP19990103947 |
申请日期 |
1999.03.08 |
申请人 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION |
发明人 |
LEBLANC, JEAN-PIERRE;CHANDRAN, RAMA S. |
分类号 |
C08F26/02;C08F2/06;C08F2/14;C08F6/00;(IPC1-7):C08F26/02 |
主分类号 |
C08F26/02 |
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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