# US 2019/0134956 A9 · Packaging Laminate

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- Number: US 2019/0134956 A9
- Document ID: US20190134956A9
- Status: Published application
- Kind: A9
- Application number: 15/442,098
- Filed: 2017-02-24
- Published: 2019-05-09
- Earliest claimed: 2016-02-24
- Assignees: BMSI, Inc.
- Applicants: BMSI, Inc.
- Inventors: Lee Phillips Gilbert
- Web page: https://patentgrep.com/patent/US20190134956A9

## CPC

- B32B 27/08: of synthetic resin
- B32B 27/18: characterised by the use of special additives
- B32B 27/205: {the fillers creating voids or cavities, e.g. by stretching}
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/327: {comprising polyolefins obtained by a metallocene or single-site catalyst}
- B32B 2250/02: 2 layers
- B32B 2250/03: 3 layers
- B32B 2250/242: All polymers belonging to those covered by group B32B27/32
- B32B 2250/246: All polymers belonging to those covered by groups B32B27/32 and B32B27/30
- B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers
- B32B 2307/514: Oriented
- B32B 2307/54: Yield strength; Tensile strength
- B32B 2307/5825: Tear resistant
- B32B 2307/7244: Oxygen barrier
- B32B 2307/7246: Water vapor barrier
- B32B 2307/732: Dimensional properties
- B32B 2439/70: Food packaging
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

Disclosed herein are compositions and methods related to a packaging laminate comprising: a first polymeric layer comprising a polypropylene copolymer; and a second polymeric layer comprising a high density polyethylene (HDPE) resin with a coextruded ethyl vinyl alcohol (EVOH) compatibilizer.

## Claims

### Claim 1

A packaging laminate comprising:
a. a first polymeric layer comprising a polypropylene copolymer; and
b. a second polymeric layer comprising a high density polyethylene (HDPE) resin with a coextruded ethyl vinyl alcohol (EVOH) compatibilizer.

### Claim 2 (depends on 1)

The packaging laminate of claim 1, wherein the polypropylene copolymer comprises 45% weight of the first polymeric layer.

### Claim 3 (depends on 1)

The packaging laminate of claim 1, wherein the first polymeric layer further comprises a low density polyethylene (LDPE) and HDPE resin.

### Claim 4 (depends on 1)

The packaging laminate of claim 1, wherein the HDPE resin comprises from 55% to 70% weight of the second polymeric layer and the EVOH compatibilizer comprises at least about 5% weight of the second polymeric layer.

### Claim 5 (depends on 1)

The packaging laminate of claim 1, wherein the second polymeric layer comprises an ionomer and wherein the ionomer comprises about 10 to 12% weight of the second polymeric layer.

### Claim 6 (depends on 1)

The packaging laminate of claim 1, wherein the second polymeric layer comprises an plastomer and wherein the plastomer comprises about 10 to 14% weight of the second polymeric layer.

### Claim 7 (depends on 1)

The packaging laminate of claim 1, wherein the first polymeric layer is oriented to be on the outside layer of the packaging laminate.

### Claim 8 (depends on 1)

The packaging laminate of claim 1, wherein the first polymeric layer is oriented to be on the inside layer of the packaging laminate.

### Claim 9 (depends on 1)

The packaging laminate of claim 1, wherein the first polymeric layer comprises about 35% of the thickness of the laminate.

### Claim 10 (depends on 1)

The packing laminate of claim 1, further comprising a third polymeric layer positioned between the first layer and the second layer, wherein the third polymeric layer comprises an HDPE resin.

### Claim 11

A packaging laminate comprising:
a. a first polymeric layer comprising a high density polyethylene (HDPE) resin; and
b. a second polymeric layer comprising a low density/high density polyethylene (LD/HDPE) resin with a coextruded ethyl vinyl alcohol (EVOH) film barrier.

### Claim 12 (depends on 11)

The packaging laminate of claim 11, wherein the HDPE comprises 80% weight of the first polymeric layer.

### Claim 13 (depends on 11)

The packaging laminate of claim 11, wherein the first polymeric layer further comprises octene.

### Claim 14 (depends on 11)

The packaging laminate of claim 11, wherein the HDPE resin comprises from 55% to 70% weight of the second polymeric layer and the EVOH compatibilizer comprises at least about 5% weight of the second polymeric layer.

### Claim 15 (depends on 11)

The packaging laminate of claim 11, wherein the second polymeric layer comprises an ionomer and wherein the ionomer comprises about 10 to 12% weight of the second polymeric layer.

### Claim 16 (depends on 11)

The packaging laminate of claim 11, wherein the second polymeric layer comprises an plastomer and wherein the plastomer comprises about 10 to 14% weight of the second polymeric layer.

### Claim 17 (depends on 11)

The packaging laminate of claim 11, wherein the first polymeric layer is oriented to be on the outside layer of the packaging laminate.

### Claim 18 (depends on 11)

The packing laminate of claim 11, further comprising a third layer positioned between the first layer and the second layer, wherein the third polymeric layer comprises an HDPE resin.