基本信息:
- 专利标题: PRODUCTION OF BROAD MOLECULAR WEIGHT POLYETHYLENE
- 专利标题(中):生产广泛的分子量聚乙烯
- 申请号:PCT/US2003/040138 申请日:2003-12-05
- 公开(公告)号:WO2004060923A2 公开(公告)日:2004-07-22
- 发明人: CANN, Kevin, Joseph , ZHANG, Minghui , CEVALLOS-CANDAU, Jose, Fernando , MOORHOUSE, John, H. , GOODE, Mark, G. , ZILKER, Daniel, P. , APECETCHE, Maria
- 申请人: UNIVATION TECHNOLOGIES, LLC
- 申请人地址: 5555 San Felipe, Suite 1950, Houston, TX 77056 US
- 专利权人: UNIVATION TECHNOLOGIES, LLC
- 当前专利权人: UNIVATION TECHNOLOGIES, LLC
- 当前专利权人地址: 5555 San Felipe, Suite 1950, Houston, TX 77056 US
- 代理机构: MCKINNEY, Osborne, K.
- 优先权: US60/436,790 20021227; US10/716,291 20031120
- 主分类号: C08F
- IPC分类号: C08F
摘要:
The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or separately to the reactor. Adding the alkyl aluminum compound directly to the reactor (in-situ) eliminates induction times.
摘要(中):
本发明涉及使用烷基铝活化剂和助洗剂以改善铬基催化剂的性能。 烷基铝允许可变地控制聚合物分子量,控制侧链,同时具有所需的生产率,并且可以将催化剂直接或单独施加到反应器上。 将烷基铝化合物直接加入反应器(原位)消除了诱导时间。 p>
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 |