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US 9,809,701 B2Granted
Low density ethylene-based compositions with improved melt strength, output, and mechanical properties
AssigneeDow Global Technologies LLC
InventorsCornelis F. J. den Doelder, Teresa P. Karjala, Otto J. Berbee, Lori L. Kardos
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Abstract
The invention provides a composition comprising the following: A) a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs)/Mw(GPC)<2.2; and b) a MS versus I2 relationship: MS≧C×[(I2)D], where C=13.5 cN/(dg/min)D, and D=−0.55, c) a melt index (I2) from 0.1 to 0.9 g/10 min; and B) a second ethylene-based polymer; and wherein the second ethylene-based polymer has a melt index (I2) from 0.1 to 4.0 g/10 min.
Claims13
A composition comprising the following:
- A) a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties:
- a) a Mw(abs)/Mw(GPC)<2.2, and
- b) a MS versus I2 relationship:
- MS≧C×[(I2)D], where C=13.5 cN/(dg/min)D, and D=−0.55,
- c) a melt index (I2) from 0.1 to 0.9 g/10 min;
- and
- B) a second ethylene-based polymer;
- and
- wherein the second ethylene-based polymer has a melt index (I2) from 0.1 to 4.0 g/10 min.
6 more elements
Dependencies are inferred from the claim text.