# US 2023/0065752 A1 · Void fill packaging

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- Number: US 2023/0065752 A1
- Document ID: US20230065752A1
- Status: Published application
- Kind: A1
- Application number: 17/461,219
- Filed: 2021-08-30
- Published: 2023-03-02
- Earliest claimed: 2021-08-30
- Assignees: PPC Industries, Inc.
- Applicants: PPC Industries Inc.
- Inventors: Christopher Brewster; Allan Guillen; Renato Yutuc
- Web page: https://patentgrep.com/patent/US20230065752A1

## CPC

- B65D 81/03: Wrappers or envelopes with shock-absorbing properties, e.g. bubble films {(for thermal insulating purposes B65D81/3888)}
- B65D 81/052: {filled with fluid, e.g. inflatable elements}
- B29C 48/022: {characterised by the choice of material}
- B29C 48/08: flexible, e.g. films
- B29C 48/10: flexible, e.g. blown foils
- B29C 48/21: the layers being joined at their surfaces
- B29L 2031/7138: {Shock absorbing}
- 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
- 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)
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A void-fill package, and method of making the same, comprising at least 50%, on a weight basis of the package, recycled polyethylene; at least 40%, on a weight basis of the package, virgin polyethylene; at least one moisture scavenger; and at least one melt stabilizer.

## Claims

### Claim 1

A void-fill package comprising:
at least 50%, on a weight basis of the package, recycled polyethylene;
at least 40%, on a weight basis of the package, virgin polyethylene;
at least one moisture scavenger; and
at least one melt stabilizer.

### Claim 2 (depends on 1)

The void-fill package of claim 1 wherein the recycled polyethylene comprises linear low density polyethylene.

### Claim 3 (depends on 1)

The void-fill package of claim 1 wherein the virgin polyethylene comprises linear low density polyethylene.

### Claim 4 (depends on 1)

The void-fill package of claim 1 wherein the recycled polyethylene comprises octene copolymer linear low density polyethylene.

### Claim 5 (depends on 1)

The void-fill package of claim 1 wherein the virgin polyethylene comprises octene copolymer linear low density polyethylene.

### Claim 6 (depends on 1)

The void-fill package of claim 1 wherein the recycled polyethylene and virgin polymer polyethylene each comprise octene copolymer linear low density polyethylene.

### Claim 7 (depends on 1)

The void-fill package of claim 1 wherein the moisture scavenger comprises about 2% of the weight basis of the package.

### Claim 8 (depends on 1)

The void-fill package of claim 1 wherein the moisture scavenger comprises at least one of calcium oxide, calcium carbonate concentrated in linear low density polyethylene, talc and slip concentrated in linear low density polyethylene, or a polyolefinic polymer.

### Claim 9 (depends on 1)

The void-fill package of claim 1 wherein the moisture scavenger comprises calcium oxide.

### Claim 10 (depends on 1)

The void-fill package of claim 1 wherein the melt stabilizer comprises about 8% of the weight basis of the package.

### Claim 11 (depends on 1)

The void-fill package of claim 1 wherein the melt stabilizer comprises a propylene elastomer, medium density metallocene polyethylene, low density metallocene polyethylene, or linear low density metallocene polyethylene.

### Claim 12 (depends on 1)

The void-fill package of claim 1 wherein the recycled polyethylene comprises post-industrial reprocessed resin.

### Claim 13 (depends on 1)

The void-fill package of claim 1 wherein the recycled polyethylene comprises sorted scrap plastic packaging films.

### Claim 14 (depends on 1)

The void-fill package of claim 1 wherein the recycled polyethylene comprises clear, transparent, translucent, or unprinted resins.

### Claim 15

A void-fill package comprising:
at least 50%, on a weight basis of the package, recycled octene copolymer linear low density polyethylene;
at least 40%, on a weight basis of the package, virgin octene copolymer linear low density polyethylene;
about 2%, on a weight basis of the package, of calcium oxide; and
about 8%, on a weight basis of the package, of at least one melt stabilizer.

### Claim 16

A method for forming a void-fill package comprising:
intermixing:
at least 50%, on a weight basis of the package, recycled polyethylene;
at least 40%, on a weight basis of the package, virgin polyethylene;
at least one moisture scavenger; and
at least one melt stabilizer;
heating the mixture to form a fluid composition;
extruding the fluid composition to form at least one tubular film web;
cooling the at least one tubular film web; and
forming the at least one tubular film web into individual, separable pillows.

### Claim 17 (depends on 16)

The method of claim 16 wherein the extrusion step comprises use of a multi-head extruder.

### Claim 18 (depends on 16)

The method of claim 16 wherein the forming step comprises:
sealing the at least one tubular film web into individual pillows; and
perforating the at least one tubular film web to form separable pillows.

### Claim 19 (depends on 18)

The method of claim 18 additionally comprising:
printing the cooled tubular film web to display printed material; and
reading the printed material with a photodetector, wherein the photodetector signals the location wherein the sealing and perforating steps should take place.

### Claim 20 (depends on 16)

The method of claim 16 wherein at least one of the recycled polyethylene or the virgin polyethylene is pelletized.