基本信息:
- 专利标题： A method for the preparation of a polyvinyl chloride resin
- 专利标题（中）：一种制备聚氯乙烯树脂的方法
- 申请号：EP85112943 申请日：1985-10-11
- 公开(公告)号：EP0177974A3 公开(公告)日：1987-05-20
- 发明人： Itoh, Kenichi , Noguki, Genji
- 申请人： Shin-Etsu Chemical Co., Ltd.
- 专利权人： Shin-Etsu Chemical Co., Ltd.
- 当前专利权人： Shin-Etsu Chemical Co., Ltd.
- 优先权： JP21407584 19841012
- 主分类号： C08F14/06
- IPC分类号： C08F14/06 ; C08F02/20
摘要：
The dispersing agent in the suspension polymerization of vinyl chloride according to the inventive method is a combination of a monomer-soluble non-ionic surface active agent and a partially crosslinked copolymer of an ethylenically unsaturated polymerizable carboxylic acid compound and a compound having at least two ethylenically unsaturated polymerizable linkages in a molecule. By virtue of the specific dispersing agent, the powdery polyvinyl chloride resin obtained by the polymerization has a high bulk density, greatly decreased number of fish eyes and remarkably improved thermal stability.
IPC结构图谱:
| C | 化学；冶金 |
| --C08 | 有机高分子化合物；其制备或化学加工；以其为基料的组合物 |
| ----C08F | 仅用碳—碳不饱和键反应得到的高分子化合物 |
| ------C08F14/00 | 具有1个或更多的不饱和脂族基化合物的均聚物或共聚物，每个不饱和脂族基只有1个碳—碳双键，并且至少有1个是以卤素为终端 |
| --------C08F14/02 | .含氯单体 |
| ----------C08F14/04 | ..含两个碳原子单体 |
| ------------C08F14/06 | ...氯乙烯 |