# US 2019/0375907 A1 · Polymeric material for an insulated container

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- Number: US 2019/0375907 A1
- Document ID: US20190375907A1
- Status: Published application
- Kind: A1
- Application number: 16/546,723
- Filed: 2019-08-21
- Published: 2019-12-12
- Earliest claimed: 2011-08-31
- Assignees: Berry Plastics Corporation
- Applicants: Berry Plastics Corporation
- Inventors: Chris K. LESER; Philip A. DRISKILL; Charles T. WALLACE; John B. EULER; Jason J. PALADINO; Milan C. MARAVICH; Daniel O. DAVIS; Jeffrey A. MANN; Randy A. BOWLDS; Svetlana I. CONTRADA
- Web page: https://patentgrep.com/patent/US20190375907A1

## CPC

- B29B 7/94: Liquid charges
- C08J 9/0061: {characterized by the use of several polymeric components}
- B29B 7/007: {for continuous mixing}
- B29B 7/7409: {with supply of gas}
- B29C 48/0012: {combined with shaping by internal pressure generated in the material, e.g. foaming}
- B29C 48/0022: {combined with cutting}
- B29C 48/09: Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C 48/92: Measuring, controlling or regulating
- B65D 81/3865: {drinking cups or like containers}
- C08J 9/0023: {containing oxygen}
- C08J 9/0066: {Use of inorganic compounding ingredients}
- C08J 9/0095: {Mixtures of at least two compounding ingredients belonging to different one-dot groups}
- C08J 9/04: using blowing gases generated by a previously added blowing agent
- C08J 9/06: by a chemical blowing agent
- C08J 9/08: developing carbon dioxide
- C08J 9/122: {Hydrogen, oxygen, CO2, nitrogen or noble gases}
- C08L 23/10: Homopolymers or copolymers of propene
- B29C 2948/92704: Temperature
- B29D 22/00: Producing hollow articles (tubular articles B29D23/00; pneumatic tyres B29D30/00)
- B29D 23/00: Producing tubular articles (B29D24/00 takes precedence)
- B32B 1/00: Layered products having a non-planar shape
- B32B 1/08: Tubular products
- B32B 33/00: Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
- B65D 1/40: Details of walls (other container details B65D23/00, B65D25/00)
- C08J 9/00: Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof (mechanical aspects of shaping of plastics or substances in a plastic state for the production of porous or cellular articles B29C)
- C08J 9/12: by a physical blowing agent
- C08J 2201/03: Extrusion of the foamable blend
- C08J 2203/06: CO2, N2 or noble gases
- C08J 2205/04: characterised by the foam pores
- C08J 2205/10: Rigid foams
- C08J 2323/04: Homopolymers or copolymers of ethene
- C08J 2323/12: Polypropene
- C08J 2423/06: Polyethene
- C08J 2423/12: Polypropene
- C08K 2003/2241: {Titanium dioxide}
- C08L 23/04: Homopolymers or copolymers of ethene
- C08L 23/06: Polyethylene
- C08L 23/08: Copolymers of ethene (C08L23/16 takes precedence)
- C08L 23/12: Polypropene
- C08L 23/14: Copolymers of propene (C08L23/16 takes precedence)
- E04B 1/78: Heat insulating elements {(E04B1/7662 takes precedence)}
- Y10T 428/1348: Cellular material derived from plant or animal source [e.g., wood, cotton, wool, leather, etc.]
- Y10T 428/1376: Foam or porous material containing
- Y10T 428/139: Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T 428/1397: Single layer [continuous layer]
- Y10T 428/1476: Release layer
- Y10T 428/249953: Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T 428/249958: Void-containing component is synthetic resin or natural rubbers
- Y10T 428/28: Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- 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)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A formulation includes a polymeric material, a nucleating agent, a blowing, and a surface active agent. The formulation can be used to form a container.

## Claims

### Claim 1

(canceled)

### Claim 2

A container comprising
a body including a side wall and
a floor coupled to the body to define an interior region bounded by the side wall and the floor,
wherein the body comprises a sheet and a skin, the sheet comprises cellular non-aromatic polymeric material and the skin is coupled to the cellular non-aromatic material and
wherein the cellular non-aromatic polymeric material comprises a first polymer material, a second polymer material, a chemical blowing agent, and a nucleating agent.

### Claim 3 (depends on 2)

The container of claim 2, wherein the second polymer material comprises at least one of polypropylene and polyethylene.

### Claim 4 (depends on 2)

The container of claim 2, wherein the second polymer is at least one of a polypropylene homopolymer or a copolymer.

### Claim 5 (depends on 4)

The container of claim 4, wherein the copolymer is an impact copolymer.

### Claim 6 (depends on 5)

The container of claim 5, wherein the first polymer is a polypropylene homopolymer.

### Claim 7 (depends on 2)

The container of claim 2, wherein the cellular non-aromatic polymeric material further includes regrind of the sheet.

### Claim 8 (depends on 7)

The container of claim 7, wherein the second polymer is at least one of a polypropylene homopolymer or a copolymer.

### Claim 9 (depends on 8)

The container of claim 8, wherein the copolymer is an impact copolymer and the first polymer is a polypropylene homopolymer.

### Claim 10 (depends on 2)

The container of claim 2, wherein the second polymer material is at least about 15 wt % of the cellular non-aromatic polymeric material, the chemical blowing agent is up to about 2 wt % of the cellular non-aromatic polymeric material, and the nucleating agent is up to about 2 wt % of the cellular non-aromatic polymeric material.

### Claim 11 (depends on 10)

The container of claim 10, wherein the cellular non-aromatic polymeric material further includes regrind of the sheet, the first polymer is a polypropylene homopolymer, and the second polymer is at least one of a polypropylene homopolymer, a copolymer, or an impact copolymer.

### Claim 12 (depends on 11)

The container of claim 11, wherein the cellular non-aromatic polymeric material has a density of about 0.01 g/cm3 to about 0.19 g/cm3.

### Claim 13 (depends on 2)

The container of claim 2, wherein the body further includes a floor mount coupled to a lower end of the side wall and to the floor to support the floor in a stationary position relative to the side wall to form the interior region and the skin is coupled to the floor mount.

### Claim 14 (depends on 13)

The container of claim 13, wherein the second polymer material is at least about 15 wt % of the cellular non-aromatic polymeric material, the chemical blowing agent is up to about 2 wt % of the cellular non-aromatic polymeric material, and the nucleating agent is up to about 2 wt % of the cellular non-aromatic polymeric material.

### Claim 15 (depends on 14)

The container of claim 14, wherein the cellular non-aromatic polymeric material further includes regrind of the sheet, the first polymer is a polypropylene homopolymer, the second polymer is at least one of a polypropylene homopolymer, a polypropylene copolymer, or an impact copolymer, and the cellular non-aromatic polymeric material has a density of about 0.01 g/cm3 to about 0.19 g/cm3.

### Claim 16 (depends on 2)

The container of claim 2, wherein the second polymer material is at least about 15 wt % of the cellular non-aromatic polymeric material, the chemical blowing agent is up to about 2 wt % of the cellular non-aromatic polymeric material, the nucleating agent is up to about 2 wt % of the cellular non-aromatic polymeric material, the first polymer is a polypropylene homopolymer, the second polymer is at least one of a polypropylene homopolymer, a polypropylene copolymer, or an impact copolymer, and the cellular non-aromatic polymeric material has a density of about 0.01 g/cm3 to about 0.19 g/cm3.

### Claim 17 (depends on 16)

The container of claim 16, wherein the cellular non-aromatic polymeric material has a thermal conductivity to density ratio of about 0.3, wherein thermal conductivity is expressed in W/m-K at about 21° C. and density is expressed in g/cm3.

### Claim 18 (depends on 17)

The container of claim 17, wherein the side wall has a rigidity to density ratio of about 1.5 to about 2.6 for a sidewall thickness of about 0.06 inches to about 0.07 inches when the container is filled with a liquid of about 93.3 degrees Celsius, wherein density is expressed in g/cm3, rigidity is expressed in kg-force as measured about one-third of the length of the side wall from an open end of the side wall over a travel distance of about 0.25 inches over a travel time of about 10 seconds, and wherein the cellular non-aromatic polymeric material is an extrudate, and cells of the extrudate have a first dimension along a first axis and a second dimension along a second axis, the second axis is normal to the first axis, and an average ratio of the first dimension to the second dimension is about 1.5 to about 3.0.

### Claim 19 (depends on 16)

The container of claim 16, wherein the side wall has a rigidity to density ratio of about 1.5 to about 2.6 for a sidewall thickness of about 0.06 inches to about 0.07 inches when the container is filled with a liquid of about 93.3 degrees Celsius, wherein density is expressed in g/cm3 and rigidity is expressed in kg-force as measured about one-third of the length of the side wall from an open end of the side wall over a travel distance of about 0.25 inches over a travel time of about 10 seconds.

### Claim 20 (depends on 16)

The container of claim 16, wherein the cellular non-aromatic polymeric material is an extrudate, and cells of the extrudate have a first dimension along a first axis and a second dimension along a second axis, the second axis is normal to the first axis, and wherein an average ratio of the first dimension to the second dimension is about 1.5 to about 3.0.

### Claim 21 (depends on 16)

The container of claim 16, wherein the first and second polymer materials combined are greater than about 96.7 wt % of the cellular non-aromatic polymeric material.