# US 2023/0057559 A1 · Polymeric substrate including a barrier layer

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- Number: US 2023/0057559 A1
- Document ID: US20230057559A1
- Status: Published application
- Kind: A1
- Application number: 17/964,914
- Filed: 2022-10-13
- Published: 2023-02-23
- Earliest claimed: 2020-01-06
- Assignees: INV Polypropylene, LLC
- Applicants: INV Polypropylene, LLC
- Inventors: Billy R. BODIFORD; Ross Michael MAHAN
- Web page: https://patentgrep.com/patent/US20230057559A1

## CPC

- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- C08L 23/12: Polypropene
- B32B 27/08: of synthetic resin
- C08J 5/18: Manufacture of films or sheets
- C08L 47/00: Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Compositions of derivatives of such polymers (C08L45/00 takes precedence; of conjugated diene rubbers C08L9/00 - C08L21/00)
- B32B 2307/7244: Oxygen barrier
- B32B 2307/7246: Water vapor barrier
- B32B 2307/732: Dimensional properties
- C08J 2323/12: Polypropene
- C08J 2445/00: Characterised by the use of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Derivatives of such polymers
- Y02P 20/582: Recycling of unreacted starting or intermediate materials
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A polymeric substrate is disclosed. The polymeric substrate comprises a barrier layer including a polymeric material comprising about 50 wt. % or more of at least one polyolefin polymer and 50 wt. % or less of a hydrocarbon resin. The polymeric material exhibits a DTUL of 30° C. or more and a tensile modulus of 500 MPa or more and/or a flexural secant modulus of 500 MPa or more. The barrier layer has a thickness of greater than 200 μm to 6,500 μm. A shaped polymeric article comprising the polymeric substrate is also disclosed.

## Claims

### Claim at position 1

1-62. (canceled)

### Claim 63

A polymeric substrate comprising:
a barrier layer including a polymeric material comprising about 50 wt. % or more of at least one polyolefin polymer and 50 wt. % or less of a hydrocarbon resin comprising an aromatic hydrocarbon resin,
wherein the polymeric material exhibits a DTUL of 30° C. or more and a flexural secant modulus of 500 MPa or more, and
further wherein the barrier layer has a thickness of greater than 200 μm to 6,500 μm.

### Claim 64 (depends on 63)

The polymeric substrate of claim 63, wherein the at least one polyolefin polymer comprises an ethylene polymer.

### Claim 65 (depends on 63)

The polymeric substrate of claim 63, wherein the at least one polyolefin polymer comprises a propylene polymer.

### Claim 66 (depends on 65)

The polymeric substrate of claim 65, wherein the propylene polymer comprises a propylene homopolymer.

### Claim 67 (depends on 65)

The polymeric substrate of claim 65, wherein the propylene polymer comprises a propylene copolymer including at least one comonomer comprising ethylene, a C4-C20 α-olefin, or a mixture thereof.

### Claim 68 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin comprises a C9 aromatic hydrocarbon resin.

### Claim 69 (depends on 63)

The polymeric substrate of claim 63, wherein the hydrocarbon resin further comprises an aliphatic hydrocarbon resin, an aliphatic/aromatic hydrocarbon resin, a polyterpene resin, a terpene-phenol resin, a rosin ester, a rosin acid, or a mixture thereof.

### Claim 70 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin is partially hydrogenated.

### Claim 71 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin is fully hydrogenated.

### Claim 72 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin has a weight average molecular weight of from about 400 g/mol to about 5,000 g/mol.

### Claim 73 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin has a weight average molecular weight of from about 700 g/mol to about 1,200 g/mol.

### Claim 74 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin has a ring and ball softening point of about 110° C. or more.

### Claim 75 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin has a ring and ball softening point of about 110° C. or more to 120° C. or less.

### Claim 76 (depends on 63)

The polymeric substrate of claim 63, wherein the aromatic hydrocarbon resin comprises a C9 aromatic hydrocarbon resin having a ring and ball softening point of about 110° C. or more to 120° C. or less.

### Claim 77 (depends on 63)

The polymeric substrate of claim 63, wherein the barrier layer has a water vapor transmission rate of 3.0 cm3/m2/day or less and/or an oxygen transmission rate of 60 cm3/100 in2/day or less.

### Claim 78 (depends on 63)

The polymeric substrate of claim 63, wherein the barrier layer has a thickness of from 250 μm to 2,000 μm.

### Claim 79 (depends on 63)

The polymeric substrate of claim 63, wherein the polymeric substrate is a monolayer polymeric substrate.

### Claim 80 (depends on 63)

The polymeric substrate of claim 63, wherein the polymeric substrate is a multilayer polymeric substrate including at least one additional layer.

### Claim 81 (depends on 63)

A shaped polymeric article comprising the polymeric substrate of claim 63.

### Claim 82 (depends on 81)

The shaped polymeric article of claim 81, wherein the shaped polymeric article is a thermoformed shaped polymeric article, a blow molded shaped polymeric article, or an injection molded shaped polymeric article.