# US 9,434,523 B2 · Reclosable package

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- Number: US 9,434,523 B2
- Document ID: US9434523B2
- Status: Granted
- Kind: B2
- Application number: 14/439,490
- Filed: 2013-05-24
- Published: 2015-10-22
- Granted: 2016-09-06
- Earliest claimed: 2012-10-30
- Assignees: Amcor Flexibles, Inc.
- Applicants: Amcor Flexibles
- Inventors: Jan Gicewicz
- Web page: https://patentgrep.com/patent/US9434523B2

## CPC

- B65D 75/58: Opening or contents-removing devices added or incorporated during package manufacture {(B65D75/36, B65D85/1027 take precedence)}
- B65D 65/14: with areas coated with adhesive
- B65D 75/20: in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
- B65D 75/5855: {Peelable seals}
- B65D 2575/586: with means for reclosing
- 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

## Abstract

The present invention is related to a reclosable flow pack comprising one or more fin seal(s) (30) and one or more cross-seal(s) (31), said flow pack comprising a cold-seal adhesive pattern (11, 301, 302, 401, 402) forming a seal between a first (3) and a second (4) sealing portion, the cold-seal adhesive pattern (301, 401) of the first portion being only partly in register with the cold-seal adhesive pattern (302, 402) of the second portion, the bonding force of the cold-seal adhesive to the first (3) and the second (4) sealing portions being lower than the bonding force within the cold-seal adhesive on the portions in register (7, 100, 101), so that the cold-seal adhesive on the portions of the cold-seal adhesive patterns in register is separated from the first or from the second sealing portion when the seal is opened.

## Claims

### Claim 1

A reclosable flow pack comprising one or more fin seal(s) (30) and one or more cross-seal(s) (31), said flow pack comprising a cold-seal adhesive pattern (11, 301, 302, 401, 402) forming a seal between a first (3) and a second (4) sealing portion, the cold-seal adhesive pattern (301, 401) of the first portion (1) being only partly in register with the cold-seal adhesive pattern (302, 402) of the second portion (2), the bonding force of the cold-seal adhesive to the first (3) and the second (4) sealing portions being lower than the bonding force within the cold-seal adhesive on the portions in register (7, 100, 101), so that the cold-seal adhesive on the portions of the cold-seal adhesive patterns in register is separated from the first or from the second sealing portion when the seal is opened.

### Claim 2 (depends on 1)

The reclosable package according to claim 1, characterized in that the area in register represents 80% or less.

### Claim 3 (depends on 1)

The reclosable package according to claim 1, characterized in that the one or more fin seal(s) comprise(s) coldseal-free flaps.

### Claim 4 (depends on 1)

The reclosable package according to claim 1, characterized in that said flow pack comprises a continuous seal line (12) around for ensuring air tightness.

### Claim 5 (depends on 1)

The reclosable package according to claim 1, characterized in that said flow pack comprises corona-treated, oriented polyolefin films.

### Claim 6 (depends on 1)

The reclosable package according to claim 1, characterized in that the cold seal comprises a natural latex or synthetic latex.

### Claim 7

The reclosable package according to claim characterized in that the cold seal comprises at least 50% of said natural or synthetic latex.

### Claim 8 (depends on 1)

The reclosable package according to claim 1, characterized in that the cold seal contains at least one acrylic polymer or copolymer.

### Claim 9 (depends on 1)

The reclosable package according to claim 1, characterized in that the cold seal contains at least one styrene acrylic polymer or copolymer, preferably two different types thereof.

### Claim 10 (depends on 1)

The reclosable package according to claim 1, characterized in that the adhesion strength of the cold seal is comprised between 2 and 8N/25 mm.

### Claim 11 (depends on 1)

The reclosable package according to claim 1, characterized in that the area in register represents 70% or less.

### Claim 12 (depends on 1)

The reclosable package according to claim 1, characterized in that the area in register represents 50% or less.

### Claim 13 (depends on 6)

The reclosable package according to claim 6, characterized in that the cold seal comprises at least 70% of said natural or synthetic latex.