Flexible container with fitment and process for producing same

Patent metadata

Field	Value
Publication number	US-9624005-B2
Application number	US-201514800264-A
Country	US
Kind code	B2
Filing date	Jul 15, 2015
Priority date	Jul 16, 2014
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A flexible container is provided. The flexible container includes four panels. The four panels form (i) a body portion; (ii) a neck portion, and a flare portion that extends from the neck portion; (iii) a tapered transition portion between the body portion and the neck portion; and (iv) the neck portion has a reduced width. The flare portion has an expanded end. The width of the flare portion gradually increases from the neck portion to the expanded end.

First claim

The invention claimed is:

1. A flexible container comprising:
four panels at least one panel being a gusset panel, all four panels forming
(i) a body portion;
(ii) a neck portion, and a flare portion that extends from the neck portion;
(iii) a tapered transition portion between the body portion and the neck portion;
(iv) the neck portion having a reduced width, the flare portion having an expanded end;

the width of the flare portion gradually increases from the neck portion to the expanded end;
a fitment inserted into the flare portion, the fitment comprising a base having a circular cross section, the base sealed to each of the four panels in the neck portion; and
the seal between the base and the neck portion defines an excess flare portion having an open expanded end.

2. The flexible container of claim 1 wherein the expanded end has a width that is greater than the width of the neck portion and the flare portion defines a frustoconical-shaped inner volume when the flexible container is in an expanded configuration.

3. The flexible container of claim 2 wherein the expanded end is open and permits access to the container interior.

4. The flexible container of claim 1 wherein the expanded end has a width that is from 1.1 times to 8.0 times greater than the width of the neck portion.

5. The flexible container of claim 1 wherein the flexible container comprises at least one handle.

6. The flexible container of claim 1 wherein the fitment is composed of a polymeric composition having an Izod impact resistance from 50 J/m to 500 J/m.

7. The flexible container of claim 1 wherein the panels are formed from a multilayer film having a seal layer comprising a polymer; and
the fitment comprises a polyolefin having an Izod impact resistance from greater than 50 J/m to 500 J/m and a melt temperature (Tm) greater than or equal to the Tm of the seal layer polymer.

8. A flexible container comprising:
four panels at least one panel being a gusset panel, all four panels forming
(i) a body portion;
(ii) a neck portion, and a flare portion that extends from the neck portion, the flare portion having an expanded end;
(iii) a tapered transition portion between the body portion and the neck portion;
(iv) the neck portion having a reduced width, and

a fitment heat sealed to each of the four panels in the neck portion, the fitment composed of a polymeric composition having an Izod impact resistance from greater than 50 J/m to 500 J/m; and
the heat seal defining an excess flare portion having an open expanded end.

9. The flexible container of claim 8 wherein the fitment comprises a base having a circular cross section, and the base has a wall thickness from 0.15 mm to 1.9 mm.

10. The flexible container of claim 8 wherein
each panel includes a bottom face comprising two opposing peripheral tapered seals, each peripheral tapered seal extending from a respective peripheral seal, each peripheral tapered seal comprising an inner edge, the peripheral tapered seals converging at a bottom seal area;
the front panel bottom face comprises a first line defined by the inner edge of the first peripheral tapered seal and a second line defined by the inner edge of the second peripheral tapered seal inner edge, the first line intersecting the second line at an apex point in the bottom seal area;
the front panel bottom face has a bottom distalmost inner seal point on the inner edge; and
the apex point is separated from the bottom distalmost inner seal point by a distance from 0 mm to less than 8.0 mm.

11. The flexible container of claim 8 wherein the expanded end has a width that is greater than the width of the neck portion and the flare portion defines a frustoconical-shaped inner volume when the flexible container is in an expanded configuration.

Assignees

• Dow Global Technologies Llc

Inventors

• Pereira Bruno R
• Franca Marcos P

Classifications

• B31B70/84

  Forming or attaching means for filling or dispensing contents, e.g. valves or spouts · CPC title

• B31B70/266

  involving gusset-forming · CPC title

• B29C66/72341

  for gases · CPC title

• B29C66/72325

  Ceramics · CPC title

• B29C65/8246

  Pressure tests, e.g. hydrostatic pressure tests · CPC title