发明名称 |
IMPROVED PROCESS TO MAKE TUBULAR ETHYLENE BASED POLYMERS WITH HIGH MELT STRENGTH |
摘要 |
A process to form an ethylene-based polymer comprises polymerizing a reaction mixture comprising ethylene, at least one monomeric chain transier agent, and at least one chain transfer agent system comprising at least one chain transfer agent (C'l'A) in the presence of at least one free-radical initiator and in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i≥2), wherein the reaction zone i is downstream from reaction zone 1. The ratio of "the activity of the CTA system of the feed to the first reaction zone" to the "activity of the CTA system of the cumulative feed to the reaction zone i," (Ζ1/Zi), is less than or equal to (0.8-0.2*log(Cs)), wherein Cs is from 0.0001 to 10. |
申请公布号 |
WO2016210308(A1) |
申请公布日期 |
2016.12.29 |
申请号 |
WO2016US39328 |
申请日期 |
2016.06.24 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
BERBEE, Otto, J.;HINRICHS, Stefan;EWART, Sean, W.;OSBY, John, O. |
分类号 |
C08F2/00;C08F2/01;C08F2/38;C08F10/02;C08F110/02;C08F210/02 |
主分类号 |
C08F2/00 |
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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