发明公开
- 专利标题： PRODUCING POLYETHYLENE PRODUCTS WITH IMPROVED STIFFNESS, TOUGHNESS, AND PROCESSABILITY
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申请号： EP22150196.8申请日： 2015-02-10
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公开(公告)号： EP3998292A1公开(公告)日： 2022-05-18
- 发明人: LUE, Ching-Tai , RIX, Francis C. , BOLLER, Timothy M. , GIESBRECHT, Garth R. , GOODE, Mark G. , FARLEY, James M. , KAO, Sun-Chueh , LI, Dongming , PEQUENO, R. Eric , ZILKER, Daniel P. Jr.
- 申请人： Univation Technologies, LLC
- 申请人地址： US Houston, TX 77056 5555 San Felipe Suite 1950
- 代理机构： Boult Wade Tennant LLP
- 优先权： US201462087911 P 20141205
- 主分类号： C08F210/02
- IPC分类号： C08F210/02 ; C08F4/6592 ; C08F2/34
摘要：
The invention relates to a polymer, comprising ethylene and at least one alpha olefin having from 4 to 20 carbon atoms, wherein the polymer has:
an absence of a negative inflection point in a van Gurp Palmen (vGP) plot at a frequency of between about 0.1 rad/s and 300 rad/s at 190 °C;
a melt index ratio (MIR) greater than about 40;
a relationship between average modulus (M) and dart impact strength in g/mil (DIS) complying with the formula: DIS ≥ 0.8 x 100 + e 11.71 − 0.000268 xM + 2.183 x 10 − 9 xM 2 .
an absence of a negative inflection point in a van Gurp Palmen (vGP) plot at a frequency of between about 0.1 rad/s and 300 rad/s at 190 °C;
a melt index ratio (MIR) greater than about 40;
a relationship between average modulus (M) and dart impact strength in g/mil (DIS) complying with the formula: DIS ≥ 0.8 x 100 + e 11.71 − 0.000268 xM + 2.183 x 10 − 9 xM 2 .
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