| 发明名称 |
PROCESS FOR PREPARING VINYLPYRROLIDONE POLYMER |
| 摘要 |
A vinylpyrrolidone polymer which is free from coloration and odor and is extremely reduced in impurity content. A water-soluble organic peroxide and a sulfurous acid salt are added to an aqueous vinylpyrrolidone solution to polymerize the vinylpyrrolidone.
|
| 申请公布号 |
CA2363730(A1) |
申请公布日期 |
2001.12.20 |
| 申请号 |
CA20012363730 |
申请日期 |
2001.05.23 |
| 申请人 |
DAI-ICHI KOGYO SEIYAKU CO., LTD. |
发明人 |
FUJISE, KEIICHI;KITADA, AKIRA;HAMAGUCHI, ITSUKO |
| 分类号 |
C08F2/10;C08F4/40;C08F16/10;C08F26/10;C08F226/10;(IPC1-7):C08F26/10 |
主分类号 |
C08F2/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
