摘要 |
<p>The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than -20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.</p> |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
VANDUN, JOZEF, J.;SCHOUTERDEN, PATRICK, J.;SEHANOBISH, KALYAN;VAN DEN BERGHEN, PETER, F., M.;JIVRAJ, NOORALLAH;VANVOORDEN, JOHAN;DIXIT, RAVI, S.;NICASY, RUDDY;GEMOETS, FREDERIK, E. |