发明名称 |
PROPYLENE-BASED POLYMER WITH REDUCED HIGH-MOLECULAR WEIGHT PORTION |
摘要 |
The present disclosure provides a process for producing propylene-based polymer. The process includes contacting, under polymerization conditions in a gas phase polymerization reactor, propylene monomer and optionally one or more comonomers with a Ziegler-Natta catalyst composition. The process includes maintaining the temperature of a reaction zone of the reactor at a temperature from greater than 72°C to less than or equal to 85°C, and forming a propylene-based polymer having a molecular weight (Mw) greater than 100,000, and a Mz+1/Mz less than 2.20. The resultant propylene-based polymer is advantageous in fiber applications. |
申请公布号 |
WO2015073855(A1) |
申请公布日期 |
2015.05.21 |
申请号 |
WO2014US65749 |
申请日期 |
2014.11.14 |
申请人 |
W.R. GRACE & CO.-CONN |
发明人 |
KAARTO, JOHN, K.;VAN EGMOND, JAN, W.;LESTER, CHARLES, D. |
分类号 |
C08F10/06;C08F4/64;C08F110/06 |
主分类号 |
C08F10/06 |
代理机构 |
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代理人 |
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地址 |
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