发明公开
EP4036127A1 COMPOSITION FOR POLYMERIZING VINYL CHLORIDE-BASED POLYMER AND METHOD FOR PREPARING VINYL CHLORIDE-BASED POLYMER USING SAME
审中-实审
基本信息:
- 专利标题： COMPOSITION FOR POLYMERIZING VINYL CHLORIDE-BASED POLYMER AND METHOD FOR PREPARING VINYL CHLORIDE-BASED POLYMER USING SAME
- 申请号：EP20868835.8 申请日：2020-09-25
- 公开(公告)号：EP4036127A1 公开(公告)日：2022-08-03
- 发明人： LEE, Se Woong , BAE, Heung Kwon , LEE, Hyun Min , YOUK, Kyung Seog , LIM, Joong Chul , LEE, Jung Rae
- 申请人： LG CHEM, LTD.
- 申请人地址： KR Yeongdeungpo-gu, Seoul 07336 128, Yeoui-daero,
- 代理机构： Goddar, Heinz J.
- 优先权： KR20190120119 20190927
- 国际公布： WO2021060909 20210401
- 主分类号： C08F14/06
- IPC分类号： C08F14/06 ; C08F2/24 ; C08F6/16 ; C08F8/04 ; C08J3/12
摘要：
The present invention provides a method for preparing a vinyl chloride-based polymer, the method including (1) a step of polymerizing a vinyl chloride-based monomer in the presence of a vinyl chloride-based first seed particle, a vinyl chloride-based second seed particle, and an emulsifier and (2) a step of separating, after the polymerizing step, a first vinyl chloride-based polymer and a second vinyl chloride-based polymer which are in a particulate form, wherein the separated first vinyl chloride-based polymer is dried using a fluid bed dryer (FBD), and the first vinyl chloride-based polymer has a smaller average particle diameter (D 50 ) than the second vinyl chloride-based polymer, and two kinds of polymers having different physical properties may be prepared through a single manufacturing process.
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 |