US 2020/0047460 A1 · LAMINATE STRUCTURES AND FLEXIBLE PACKAGING MATERIALS INCORPORATING SAME

Abstract

Embodiments of laminate structures and flexible packaging materials incorporating same comprise a first film comprising biaxially-oriented polyethylene terephthalate (BOPET), and a second film laminated to the first film and comprising a co-extruded film, wherein the second film comprises a polyamide layer and a polyolefin layer, the polyolefin layer comprising a first composition. The first composition comprises at least one ethylene based polymer, wherein the first composition comprises a Molecular Weighted Comonomer Distribution Index (MWCDI) value greater than 0.9, and a melt index ratio (I10/I2) that meets the following equation: I10/I2≥7.0−1.2× log (I2).

Claims15

Dependent claims

A laminate structure comprising:

a first film comprising biaxially-oriented polyethylene terephthalate (BOPET);
and
a second film laminated to the first film and comprising a co-extruded film, wherein the second film comprises a polyamide layer and a polyolefin layer, the polyolefin layer comprising a first composition, the first composition comprising at least one ethylene based polymer, wherein the first composition comprises a Molecular Weighted Comonomer Distribution Index (MWCDI) value greater than 0.9, and a melt index ratio (I10/I2) that meets the following equation:
I10/I2≥7.0−1.2× log (I2).

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/605,860Filed 19 Apr 2018

Priority

19 Apr 2017

Published

13 Feb 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification19 codes

B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties
B32B 27/08
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 27/32
Layered products comprising a layer of synthetic resin: comprising polyolefins
B32B 27/34
Layered products comprising a layer of synthetic resin: comprising polyamides

Laminate structures and flexible packaging materials incorporating same

Life of this patent

Laminate structures and flexible packaging materials incorporating same

Life of this patent

Abstract

Claims15