发明名称 |
PROCESS AND APPARATUS FOR THE PREPARATION OF VINYL POLYMERS |
摘要 |
<p>A process and apparatus for preparing vinyl polymers by continuous bulk or solution polymerization provide improved mixing during polymerization. In the process, fresh polymerization starting material is incorporated into a part of reaction mixture withdrawn from a polymerization zone and then fed to the polymerization zone. Polymerization temperature is kept at 100 DEG to 200 DEG C. and polymer content in a reaction mixture withdrawn from the polymerization zone is kept at 50 to 80% by weight. A tank having agitating means, outlet opening and recycling inlet is used as polymerization reactor. Said recycling inlet is preferably located at a position corresponding to 1/4 or less of the total height from the bottom to the top of the tank.</p> |
申请公布号 |
EP0021341(B1) |
申请公布日期 |
1986.04.23 |
申请号 |
EP19800103400 |
申请日期 |
1980.06.18 |
申请人 |
MITSUBISHI RAYON CO. LTD. |
发明人 |
MAEDA, TORU |
分类号 |
B01J19/18;B01J19/20;C08F2/00;C08F2/02;C08F2/06;(IPC1-7):C08F2/02;C08F265/06 |
主分类号 |
B01J19/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|