# US 11,897,678 B2 · Paper recyclable heat sealable bag

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,897,678 B2
- Document ID: US11897678B2
- Status: Granted
- Kind: B2
- Application number: 17/499,998
- Filed: 2021-10-13
- Published: 2022-04-14
- Granted: 2024-02-13
- Earliest claimed: 2020-10-13
- Assignees: Packaging Aids Corporation
- Applicants: Packaging Aids Corporation
- Inventors: Gregory Berguig
- Web page: https://patentgrep.com/patent/US11897678B2

## CPC

- B65D 33/22: using heat-activatable adhesive
- B65D 65/42: Applications of coated or impregnated materials
- B65B 5/045: {in bags}
- B65B 7/02: Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
- B65B 43/04: Forming flat bags from webs
- B65B 43/123: {Feeding flat bags connected to form a series or chain}
- B65B 43/267: {Opening of bags interconnected in a web}
- B65B 51/10: Applying or generating heat or pressure or combinations thereof {(welding of plastics per se B29C65/02; closing plastic tube ends in general B29C57/10)}
- B65B 61/12: by tearing along perforations or lines of weakness
- B65D 33/002: {Rolls, strips or like assemblies of bags}
- B65D 33/004: {Information or decoration elements, e.g. level indicators, detachable tabs or coupons}
- B65D 33/18: using adhesive applied to integral parts, e.g. to flaps
- B65D 75/42: Chains of interconnected packages
- B65D 81/052: {filled with fluid, e.g. inflatable elements}
- Y02W 30/80: Packaging reuse or recycling, e.g. of multilayer packaging (bio-packaging Y02W90/10)
- 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
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

The paper recyclable heat sealable bag includes a heat sealable water soluble inner layer coating and an article of paper. The heat sealable coating is applied to the article of paper by a printing press. As the printing press applies the heat sealable coating to the article of paper, the paper recyclable heat sealable bag may be wound into a master roll with a plurality of paper recyclable heat sealable bags. The master roll is fed into an automatic packaging system which fills the bags with a product from at least one of a top edge and a side edge of the paper recyclable heat sealable bags. The paper recyclable heat sealable bag has certain perforations to remove the paper recyclable heat sealable bag more easily from the master roll and sealed with a heat sealer.

## Claims

### Claim 1

A paper recyclable heat sealable bag system, comprising:
an article of paper in the form of a bag including a heat sealable, water-soluble coating applied to an inner surface of the bag, the heat sealable, water-soluble coating including an acrylic copolymer,
the heat sealable, water-soluble coating formed from an acrylic polymer or copolymer emulsion, and
the heat sealable, water-soluble coating configured to dissolve and separate from the article of paper when the article of paper is one of recycled and repulped.

### Claim 2 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the acrylic copolymer includes a member selected from a group consisting of pure acrylic polymer, ethylene acrylic acid copolymer, vinyl acrylic acid copolymer, styrene acrylic copolymer, and combinations thereof.

### Claim 3 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the bag is constructed with a top load configuration where a top edge of the bag is open.

### Claim 4 (depends on 3)

The paper recyclable heat sealable bag system of claim 3, wherein the bag is constructed with a tube configuration where a top edge and a bottom edge of the bag are open.

### Claim 5 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the bag is constructed with a side load configuration where a side edge of the bag is open.

### Claim 6 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the bag includes an adhesive layer disposed adjacent to an opening of the bag, the adhesive layer configured to permit the bag to be manually sealed.

### Claim 7 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the bag includes a seal having a width configured to enhance the strength of the bag, wherein the width of the seal is between an eighth of an inch and a quarter of an inch.

### Claim 8 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the bag is provided in a master roll including a plurality of bags.

### Claim 9 (depends on 8)

The paper recyclable heat sealable bag system of claim 8, wherein each bag is coupled to an adjacent bag with a plurality of perforations therebetween, wherein the size of each of the perforations is non-uniform.

### Claim 10 (depends on 9)

The paper recyclable heat sealable bag system of claim 9, wherein the plurality of perforations include perforations formed near an edge of the master roll having a second width and perforations formed near a center area of the master roll having a third width, wherein the third width is greater than the second width.

### Claim 11 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the heat sealable, water-soluble coating is approved to contact edible products.

### Claim 12 (depends on 1)

The paper recyclable heat sealable bag system of claim 1, wherein the heat sealable, water soluble coating is further applied to an outer surface of the bag including an edge of the bag.

### Claim 13 (depends on 12)

The paper recyclable heat sealable bag system of claim 12, wherein:
the acrylic copolymer includes a member selected from a group consisting of pure acrylic polymer, ethylene acrylic acid copolymer, vinyl acrylic acid copolymer, styrene acrylic copolymer, and combinations thereof,
the bag is provided on a master roll with each bag coupled to an adjacent bag with a plurality of non-uniform perforations therebetween and is constructed with at least one of a top load configuration where a top edge of the bag is open, a side load configuration where a side edge of the bag is open, and a tube configuration where a top edge and a bottom edge of the bag are open, and
the bag further includes:
an adhesive layer disposed adjacent to an opening of the bag and configured to permit the bag to be manually sealed, the adhesive layer having a seal having a width between an eighth of an inch and a quarter of an inch and the seal is configured to enhance the strength of the bag,
a seal, and
a label disposed on the outer surface of the bag.

### Claim 14

A method of using a paper recyclable heat sealable bag system, the method comprising the steps of:
providing the paper recyclable heat sealable bag system having an article of paper in the form of a bag including a heat sealable, water-soluble coating that is applied to an inner surface of the bag, the heat sealable, water-soluble coating formed from an acrylic polymer or copolymer emulsion, and the heat sealable, water-soluble coating configured to dissolve and separate from the article of paper when the article of paper is one of recycled and repulped; and
sealing the paper recyclable heat sealable bag with a heat sealer.

### Claim 15 (depends on 14)

The method of claim 14, further comprising a step of loading the paper recyclable heat sealable bag with a desired object after the step of providing the paper recyclable heat sealable bag but before the step of sealing the paper recyclable heat sealable bag.

### Claim 16 (depends on 14)

The method of claim 14, wherein the heat sealable, water soluble coating is further applied to an outer surface of the bag including an edge of the bag.

### Claim 17

A method of using the paper recyclable heat sealable bag system, the method comprising the steps of:
providing a paper recyclable heat sealable bag having an article of paper in the form of a bag including a heat sealable, water soluble acrylic copolymer coating that is applied to an inner surface of the bag, the heat sealable, water soluble coating including an acrylic copolymer, the heat sealable, water soluble coating formed from an acrylic polymer or copolymer emulsion, and the heat sealable, water soluble coating configured to dissolve and separate from the article of paper when the article of paper is one of recycled and repulped;
providing an automatic packaging machine;
loading the paper recyclable heat sealable bag into the automatic packaging machine;
feeding the paper recyclable heat sealable bag through the automatic packaging machine;
opening the paper recyclable heat sealable bag for loading;
loading the paper recyclable heat sealable bag with a desired object; and
sealing the paper recyclable heat sealable bag.

### Claim 18 (depends on 17)

The method of claim 17, further comprising a step of applying a label to the article of paper before the step of loading the paper recyclable heat sealable bag into the automatic packaging machine.

### Claim 19 (depends on 18)

The method of claim 18, wherein the label is a direct thermal label.

### Claim 20 (depends on 17)

The method of claim 17, the heat sealable, water soluble coating is further applied to an outer surface of the bag including an edge of the bag.