发明名称 |
PROCESSES FOR CORRELATING UV-VIS SPECTRA OF NORBORNENE COMPOUND TO POLYMERIZATION PROCESSES USING THE SAME, AND RELATED PURIFICATION METHODS AND COMPOSITIONS |
摘要 |
<p>The invention provides a process of polymerizing ethylene and at least oneα-olefin, said process comprises polymerizing the ethylene and the at least oneα-olefin in the presence of 5-ethylidene-2-norbornene, which comprises low levels of impurities, as determined by the absorbances at the following wavelengths: 320 nm and 343 nm. The invention also provides a method of increasing the catalysts efficiency, and a method of determining the expected catalyst efficiency, each in a polymerization of ethylene and at least oneα-olefin in the presence of the 5-ethylidene-2-norbornene, which comprises low levels of impurities, as determined by the absorbances at the above wavelengths. The invention further provides a method of purifying 5-ethylidene-2-norbornene to form a purified 5-ethylidene-2-norbornene, which comprises low levels of impurities, as determined by the absorbances of the above wavelengths.</p> |
申请公布号 |
EP2043750(B1) |
申请公布日期 |
2012.03.14 |
申请号 |
EP20070810456 |
申请日期 |
2007.07.13 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
RAMAGE, DAVID, L.;MARTIN, SARAH, L. |
分类号 |
C08F210/18;B01D15/00;B01D53/00;C08F210/02 |
主分类号 |
C08F210/18 |
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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