Invention Publication
- Patent Title: PRODUCING POLYETHYLENE PRODUCTS WITH IMPROVED STIFFNESS, TOUGHNESS, AND PROCESSABILITY
-
Application No.: EP22150196.8Application Date: 2015-02-10
-
Publication No.: EP3998292A1Publication Date: 2022-05-18
- Inventor: 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.
- Applicant: Univation Technologies, LLC
- Applicant Address: US Houston, TX 77056 5555 San Felipe Suite 1950
- Agency: Boult Wade Tennant LLP
- Priority: US201462087911 P 20141205
- Main IPC: C08F210/02
- IPC: C08F210/02 ; C08F4/6592 ; C08F2/34
Abstract:
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 .
Information query
