发明申请
US20100234545A1 ETHYLENE COPOLYMER HAVING MULTIPLE PITCH MOLECULAR WEIGHT DISTRIBUTION AND THE METHOD OF PREPARING THE SAME
有权
基本信息:
- 专利标题： ETHYLENE COPOLYMER HAVING MULTIPLE PITCH MOLECULAR WEIGHT DISTRIBUTION AND THE METHOD OF PREPARING THE SAME
- 专利标题（中）：具有多重分选分子量分布的乙烯共聚物及其制备方法
- 申请号：US12733450 申请日：2008-09-02
- 公开(公告)号：US20100234545A1 公开(公告)日：2010-09-16
- 发明人： Choon Sik Shim , Hyeong Taek Ham , Sung Seok Chae , Dae Ho Shin , Seung Bum Kwon , Jong Sok Hahn , Myung Ahn Ok
- 申请人： Choon Sik Shim , Hyeong Taek Ham , Sung Seok Chae , Dae Ho Shin , Seung Bum Kwon , Jong Sok Hahn , Myung Ahn Ok
- 优先权： KR10-2007-0090079 20070905
- 国际申请： PCT/KR2008/005151 WO 20080902
- 主分类号： C08F210/02
- IPC分类号： C08F210/02
摘要：
Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.
摘要（中）：
公开了乙烯聚合方法，用于该方法的催化剂，使用该催化剂的制备方法，以及由此制备的产品。 更具体地，公开了一种由乙烯和α-烯烃共聚单体制备乙烯共聚物的方法，其中所制备的乙烯共聚物具有多峰分子量分布和优异的加工性能和物理性能，因此可以提高产品的价值和生产率 ，包括管道和电影。 特别地，所生产的乙烯共聚物具有三峰或更高的分子量分布或密度分布，因此当它是线性低密度共聚物时，具有提高膜冲击强度的优异效果，并且当其为介质时 密度乙烯共聚物，它可以生产成管，其具有缓慢的裂纹生长速率，甚至可以在高温下使用。
公开/授权文献:
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 |
| ------C08F210/00 | 只有1个碳—碳双键的不饱和脂族烃的共聚物 |
| --------C08F210/02 | .乙烯 |