发明名称 |
HIGH PRESSURE LOW DENSITY POLYETHYLENE RESINS WITH IMPROVED OPTICAL PROPERTIES PRODUCED THROUGH THE USE OF HIGHLY ACTIVE CHAIN TRANSFER AGENTS |
摘要 |
Disclosed is an ethylene-based polymer with a density from about 0.90 to about 0.94 in grams per cubic centimeter, with a molecular weight distribution (Mw/Mn) from about 2 to about 30, a melt index (I2) from about 0.1 to about 50 grams per 10 minutes, and further comprising sulfur from about 5 to about 4000 parts per million. The amount of sulfur is also determined based upon the total weight of the ethylene-based polymer. Also disclosed is process for making an ethylene-based polymer which includes the steps of splitting a process fluid for delivery into a tubular reactor; feeding an upstream process feed stream into a first reaction zone and at least one downstream process feed stream into at least one other reaction zone, where the process fluid has an average velocity of at least 10 meters per second; and initiating a free-radical polymerization reaction. |
申请公布号 |
KR20110084905(A) |
申请公布日期 |
2011.07.26 |
申请号 |
KR20117010410 |
申请日期 |
2009.10.01 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
KARJALA TERESA;EDDY CHRISTOPHER;DEMIRORS MEHMET;YAU WALLACE;MUNJAL SARAT;HINRICHS STEFAN;WANG JIAN;BERBEE OTTO;ZSCHOCH WERNER;HOSMAN CORNELIS;HAZLITT LONNIE |
分类号 |
C08F10/02;C08F2/38;C08F8/34;C08L23/04 |
主分类号 |
C08F10/02 |
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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