发明名称 |
METALLOCENE-PRODUCED VERY LOW DENSITY POLYETHYLENES |
摘要 |
A very low density polyethylene having a density of 0.890 to 0.915 and a Dar t Drop value of at least about 450 g/mil or above is disclosed. Gas phase polymerization methods are also disclosed for making very low density linear polyolefins utilizing a metallocene catalyst, and the resulting polyolefin products. In a specific embodiment, a gas phase polymerization process is disclosed relating to the formation of a linear polyethylene having a very l ow density, e.g., ranging from 0.890 to 0.915, but with improved toughness.</SD OAB>
|
申请公布号 |
CA2414050(A1) |
申请公布日期 |
2001.12.27 |
申请号 |
CA20012414050 |
申请日期 |
2001.06.22 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
MALAKOFF, ALAN M.;LAURENT, DOUGLAS J.;PANAGOPOULOUS, GEORGE;JOHNSON, JERRY M.;HALLE, RICHARD W.;FARLEY, JAMES M. |
分类号 |
B32B15/085;B32B27/06;B32B27/32;C08F2/34;C08F4/60;C08F4/6192;C08F210/00;C08F210/16;C08J5/18;C08L23/04;C08L23/06;C08L23/08;C09D123/08;(IPC1-7):C08F10/02;C08F210/02 |
主分类号 |
B32B15/085 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|