发明名称 |
OLEFIN POLYMERS, METHOD OF MAKING, AND USE THEREOF |
摘要 |
A copolymer of ethylene and a higher alpha olefin, preferably 1-hexene, can be produced using an activated chromium containing catalyst system and a cocatalyst selected from the group consisting of trialkylboron, trialkylsiloxyalutninum, and a combination of trialkylboron and thalkylaluminum compounds. The polymerization process must be carefully controlled to produce a copolymer resin having an exceptionally broad molecular weight distribution, extremely high PENT ESCR values, and a natural branch profile that impacts branching preferably into the high molecular weight portion of the polymer. The resulting copolymer resin is especially useful in high stiffness pipe applications. |
申请公布号 |
CA2516668(A1) |
申请公布日期 |
2004.09.10 |
申请号 |
CA20032516668 |
申请日期 |
2003.02.24 |
申请人 |
CHEVRON PHILLIPS CHEMICAL COMPANY LP |
发明人 |
MCDANIEL, MAX P.;DESLAURIERS, PAUL J.;MEAGER, PAMELA L.;WOLFE, AL R.;BENHAM, ELIZABETH A.;SECORA, STEVEN J.;ROHLFING, DAVID C.;COUTANT, WILLIAM R. |
分类号 |
C08F4/12;C08F4/22;C08F4/24;C08F4/52;C08F4/69;C08F10/00;C08F210/16;(IPC1-7):C08F4/12 |
主分类号 |
C08F4/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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