| 发明名称 |
METHOD FOR PRODUCING VINYLPYRROLIDONE POLYMER |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a vinylpyrrolidone polymer which has no discoloration and odor and which has very few impurities. SOLUTION: A water soluble organic peroxide and sulfite are added to a vinylpyrrolidone aqueous solution and the vinylpyrrolidone is polymerized.
|
| 申请公布号 |
JP2002069115(A) |
申请公布日期 |
2002.03.08 |
| 申请号 |
JP20000332582 |
申请日期 |
2000.10.31 |
| 申请人 |
DAI ICHI KOGYO SEIYAKU CO LTD |
发明人 |
KITADA AKIRA;FUJISE KEIICHI;HAMAGUCHI ITSUKO |
| 分类号 |
C08F2/10;C08F4/40;C08F16/10;C08F26/10;C08F226/10;(IPC1-7):C08F4/40 |
主分类号 |
C08F2/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
