Method for forming a pouch

Abstract

A method of forming and filling a pouch, comprises forming opposing walls of a film; sealing the opposing walls of film together to form at least one pouch; filling an interior section of the at least one pouch through an opening in an upper portion of the at least one pouch with a flowable material; forming a top sealed expressing-shaped region to close the opening in the at least one pouch; and cradling the pouch with a foldable flat that is more rigid than the pouch that can be folded or rolled to compress the pouch to express the flowable material through the expressing shaped region.

Description

[0001]This application is a continuation-in-part of U.S. application Ser. No. 11 / 613,661, filed Dec. 20, 2006, which is incorporated herein by reference in its entirety and this application is a continuation-in-part of U.S. application Ser. No. 12 / 200,376, filed Aug. 28, 2008 which claims benefit of provisional application 60 / 969,232 filed Aug. 31, 2007, which are incorporated herein by reference in their entirety and this application is a continuation-in-part of U.S. application Ser. No. 12 / 236,555, filed Sep. 24, 2008.BACKGROUND OF THE INVENTION[0002]The invention relates to a method of forming a pouch for dispensing viscous material.[0003]Viscous materials can include sealant, mastic, adhesive, glazing, caulk, grout and glue compositions. Typically, such viscous materials are packaged, stored or commercialized in cardboard containers or plastic dispensers or cartridges that are adapted to be loaded into an extrusion device such as a caulking gun. These viscous materials include s...

AI Technical Summary

Benefits of technology

[0009]There is a need for a viscous material container such as a small pouch that overcomes the problems...

Problems solved by technology

There are difficulties associated with these containers.

The dispenser or gun may be cumbersome and difficult to operate, especially in constrained spaces in buildings under construction.

Also, the dispensing device may require significant hand strength, which adds challenge to dispensing and laying a clean sealant bead.

Discarding is uneconomical and may be highly undesirable for environmental reasons.

At present, there is no known recycling available for the wide variety of sealant compositions available on the market.

And unless the container is correctly reclosed, the residual material will be lost.

But these caps are fragile pieces that are easily split or otherwise damaged from over-tightening.

Or, the snap-fit bead and groove may not provide an enduring reclose fit until the time when the tube is next required for a caulk job.

But frequently, these solutions do not prevent content hardening for more than a short period of time.

But, oftentimes these mechanisms do not work because the packets rupture or the packets contain enough air to dry the tube contents.

And, a foil or wrap can not be closely and tightly wrapped around the tube and nozzle without air gap.

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