23-07-2015 дата публикации
Номер: US20150203672A1
Принадлежит:
The invention provides a composition comprising a first composition, wherein the first composition comprises a first ethylene-based polymer and a second ethylene-based polymer, and wherein the first composition has a high load melt index (I) less than 17, a density greater than, or equal to, 0.952 g/cm, a molecular weight distribution MWD (conv), defined as the ratio of the weight average molecular weight to the number average molecular weight (Mw(conv)/Mn(conv)), greater than, or equal to, 11; and a viscosity ratio, η(0.01 s)/η(100 s) at 190° C., greater than, or equal to, 60. 1. A composition comprising a first composition , wherein the first composition comprises a first ethylene-based polymer and a second ethylene-based polymer , and{'sub': '21', 'sup': 3', '−1', '−1, 'wherein the first composition has a high load melt index (I) less than 17, a density greater than, or equal to, 0.952 g/cm, a molecular weight distribution MWD (conv), defined as the ratio of the weight average molecular weight to the number average molecular weight (Mw (conv)/Mn(conv)), greater than, or equal to, 11; and a viscosity ratio, q(0.01 s)/q(100 s) at 190° C., greater than, or equal to, 60.'}2. The composition of claim 1 , wherein the first composition has a melt viscosity (η) claim 1 , at 0.01 s(190° C.) claim 1 , less than 200 claim 1 ,000 Pa·s.3. The composition of claim 1 , wherein the first composition has an I21/I5 ratio less than claim 1 , or equal to claim 1 , 25.0.4. The composition of claim 1 , wherein the first composition has a density from 0.952 to 0.958 g/cm.5. The composition of claim 1 , wherein the first composition has a tan delta claim 1 , at 0.01 s(190° C.) claim 1 , less than 2.3.6. The composition of claim 1 , wherein the first composition has a tan delta claim 1 , at 100 s(190° C.) claim 1 , less than claim 1 , or equal to claim 1 , 2.0.7. The composition of claim 1 , wherein the first composition has a MWD (conv) greater than claim 1 , or equal to claim 1 , 16.8. ...
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