Flexible container

Patent metadata

Field	Value
Publication number	US-9908668-B2
Application number	US-201514701829-A
Country	US
Kind code	B2
Filing date	May 1, 2015
Priority date	May 5, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

The present disclosure provides a flexible container having four panels—a front panel, a rear panel, and opposing gusseted side panels. The front panel bottom face includes a first line defined by the inner edge of a first peripheral tapered seal and a second line defined by the inner edge of a second peripheral tapered seal. The first line intersects the second line at an apex point in a 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.

First claim

The invention claimed is:

1. A flexible container comprising:
A. a front panel, a rear panel, a first gusseted side panel, and a second gusseted side panel, the gusseted side panels adjoining the front panel and the rear panel along peripheral seals to form a chamber;
B. 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;
C. 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;
D. the front panel bottom face comprises a distal inner seal arc diverging from the inner edges, and a bottom distalmost inner seal point is located on the distal inner seal arc; and
E. the apex point is separated from the bottom distalmost inner seal point by a distance from greater than 0 mm to less than 8.0 mm.

2. The flexible container of claim 1 wherein the distance from the apex point to the bottom distalmost inner seal point is from greater than 0 mm to less than 6.0 mm.

3. The flexible container of claim 1 wherein the distal inner seal arc has a radius of curvature from greater than 0 mm to 20 mm.

4. The flexible container of claim 1 wherein each peripheral tapered seal and an extended line from the respective peripheral seal form an angle, and the angle is from 40° to 50°.

5. The flexible container of claim 1 wherein each panel is a multilayer film.

6. The flexible container of claim 1 comprising an overseal in the bottom seal area.

7. The flexible container of claim 6 wherein the bottom distalmost inner seal point is located above the overseal.

8. The flexible container of claim 6 wherein the apex point is located between the bottom distalmost inner seal point and the overseal.

9. The flexible container of claim 1 wherein the panels are adjoined to define a chamber that has a spout and a rigid fitment is in the spout.

10. The flexible container of claim 9 wherein the spout is located on a top segment of the container.

11. The flexible container of claim 9 wherein the spout is located on a panel of the flexible container.

12. The flexible container of claim 1 comprising a top handle.

13. The flexible container of claim 1 comprising a bottom handle.

14. The flexible container of claim 1 comprising a bladder.

15. The flexible container of claim 1 wherein the first gusseted side panel and the second gusseted side panel each has a respective gusset panel fold line, and when the flexible container is in the collapsed configuration, the gusset panel fold lines are separated by a gap from 0 mm to 60 mm.

16. The flexible container of claim 1 wherein each panel is made from a flexible multilayer film having a seal layer comprising an ethylene-based polymer.

17. The flexible container of claim 16 wherein the ethylene-based polymer has a heat seal initiation seal temperature from greater than 65° C. to less than 125° C.

18. The flexible container of claim 17 wherein the ethylene-based polymer has a melting point, Tm, of less than 110° C.

19. The flexible container of claim 16 wherein the ethylene-based polymer is a linear ethylene-based polymer or a substantially linear ethylene-based polymer.

Assignees

• Dow Global Technologies Llc

Inventors

• Wilkes Kenneth R
• Oliveira Marlos G
• Franca Marcos P

Classifications

• B65D47/06 Primary

  with pouring spouts or tubes; with discharge nozzles or passages (with slidable spouts B65D47/26) · CPC title

• B65D75/008 Primary

  Standing pouches, i.e. "Standbeutel" · CPC title

• B65D37/00

  Portable flexible containers not otherwise provided for · CPC title

• B65D75/28

  Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks · CPC title

• B65D75/5883

  connected to the package at the sealed junction of two package walls · CPC title