ETHYLENE-BASED POLYMER COMPOSITION FOR FILMS WITH IMPROVED TOUGHNESS

Title:

ETHYLENE-BASED POLYMER COMPOSITION FOR FILMS WITH IMPROVED TOUGHNESS

Document Type and Number:

WIPO Patent Application WO/2015/200740

Kind Code:

A3

Abstract:

The invention provides a composition comprising a first composition, comprising at least one ethylene-based polymer, and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio I10/I2 that meets the following equation: I10/I2 ≥ 7.0 - 1.2 x log (I2). The invention also provides a process to form a composition comprising at least two ethylene-based polymers, said process comprising the following: polymerizing ethylene, and optionally at least one comonomer, in solution, in the presence of a catalyst system comprising a metal-ligand complex of Structure I, as described herein, to form a first ethylene-based polymer; and polymerizing ethylene, and optionally at least one comonomer, in the presence of a catalyst system comprising a Ziegler/Natta catalyst, to form a second ethylene-based polymer.

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Inventors:

WANG JIAN (US)
JAIN PRADEEP (US)
DEMIRORS MEHMET (US)
GINGER DOUGLAS S (US)
CASTELLUCCIO ANTHONY J (US)
KAPUR MRIDULA (US)

Application Number:

PCT/US2015/037869

Publication Date:

February 18, 2016

Filing Date:

June 26, 2015

Export Citation:

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Assignee:

DOW GLOBAL TECHNOLOGIES LLC (US)

International Classes:

B32B27/06; B32B27/32; C08F4/64; C08F210/16; C08L23/08

Domestic Patent References:

WO2014058639A1	2014-04-17
WO2012061168A1	2012-05-10
WO2014100889A1	2014-07-03
WO1998026000A1	1998-06-18
WO2013052636A1	2013-04-11

Foreign References:

US20130046061A1	2013-02-21
EP2752509A1	2014-07-09

Other References: