US 9,809,701 B2
Low density ethylene-based compositions with improved melt strength, output, and mechanical properties
Cornelis F. J. den Doelder, Terneuzen (NL); Teresa P. Karjala, Lake Jackson, TX (US); Otto J. Berbee, Hulst (NL); and Lori L. Kardos, Sugar Land, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 14/889,168
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed May 21, 2014, PCT No. PCT/US2014/038944
§ 371(c)(1), (2) Date Nov. 5, 2015,
PCT Pub. No. WO2014/190039, PCT Pub. Date Nov. 27, 2014.
Claims priority of provisional application 61/826,271, filed on May 22, 2013.
Prior Publication US 2016/0083568 A1, Mar. 24, 2016
Int. Cl. C08L 23/06 (2006.01); C08L 23/08 (2006.01); C08J 5/18 (2006.01)
CPC C08L 23/06 (2013.01) [C08J 5/18 (2013.01); C08L 23/08 (2013.01); C08L 23/0807 (2013.01); C08L 23/0815 (2013.01); C08J 2323/06 (2013.01); C08J 2423/06 (2013.01); C08L 2203/16 (2013.01); C08L 2205/025 (2013.01); C08L 2207/04 (2013.01); C08L 2207/066 (2013.01)] 13 Claims
 
1. 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.