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Pressurized Packaging Systems for One Component Adhesives and Sealants

a packaging system and one-component technology, applied in the direction of liquid dispensing, liquid/fluent solid measurement, containers, etc., can solve the problems of unfavorable environmental protection, non-uniform and inefficient fluid dispensing, and use of volatile organic compounds such as hydrocarbons

Inactive Publication Date: 2015-01-01
GREENSEAL CHEM NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a container that can dispense a 1K composition. It consists of an outer container with a dispensing opening and a flexible inner container that contains the 1K composition and is placed inside the outer container. The container also has a pressure generator which contains activated carbon with a propellant gas adsorbed on it. The technical effect of this invention is that it allows for a convenient and reliable dispensing of 1K compositions in a simple and effective way.

Problems solved by technology

Pressurized packaging designed for effectively and efficient dispensing viscous reactive products such as adhesives and sealants are complex.
However, discharge of the fluid tends to tail off as the pressure in the container falls resulting in non-uniform and inefficient dispensing of the fluid.
Furthermore, the use of hydrocarbons that are volatile organic compounds is environmentally unfriendly.

Method used

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  • Pressurized Packaging Systems for One Component Adhesives and Sealants
  • Pressurized Packaging Systems for One Component Adhesives and Sealants

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024]In an embodiment of the present invention, a container filled with activated carbon / CO2 and fitted with a gap-failing, industrial sealant was tested to demonstrate effective product dispensation from a ‘bag-in-can’ system. The can volume was nominally 330 cm and contained about 222 cm (270 g) of the sealant held in an integrated bag-in-can system.

[0025]The carbon material was prepared by first calculating appropriate weights of granular activated carbon and solid carbon dioxide needed to produce a full can pressure of 7 bara and a fully discharged can pressure of 5 bara.

[0026]The dispensation of sealant through the top valve fitment was considered as successful with a steady, even and manageable flow of the product throughout the dispensation. An effectively complete discharge of sealant was achieved. On destructive opening of the can it was observed that the sealant bag was completely discharged.

example 2

[0027]A commercial, viscous sealant comprising trimethoxyvinyl silane and contained in a can of approximately 150 cm.

[0028]According to aspects of the invention, the propellant chamber 1 was carbon material comprised of calculated quantities of activated carbon and solid carbon dioxide and dry ice. The quantities of activated carbon and carbon dioxide were calculated as to give a starting pressure in the region of 6-7 bara and a final pressure on full discharge of 5 bara (pressures measured at 25 [deg.] C.)). The resulting container was noted to give a complete discharge of the product with a very satisfactory and controlled flow rate.

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PUM

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Abstract

A pressurized container for dispensing a 1K adhesive or sealant composition is disclosed. The container has an outer container with at least one dispensing opening and a deformable inner container to be filled with the 1K composition. The inner container is accommodated in the outer container and also has a dispensing opening. The inner container is connected to the outer container. The outer container has a pressure generator containing an amount of activated carbon having a propellant gas adsorbed thereon.

Description

FIELD OF THE INVENTION[0001]The present invention relates to pressurized packaging systems for one component (1K) viscous products, in particular adhesives and sealants.BACKGROUND OF THE INVENTION[0002]Advanced packaging design and technology is the key to manufacturing pressurized packages that ensure the maximum efficiency and effectiveness of dispensing fluida.[0003]Pressurized packaging designed for effectively and efficient dispensing viscous reactive products such as adhesives and sealants are complex. The requirements, hence specifications, for such pressurized packaging components or parts in said applications require special conditions or equipment.[0004]Generally pressurized container-dispenser devices use compressed gases, such as hydrocarbons, that are charged to a container containing a bag of a fluid whereby actuation of a valve provided in the can causes the gas to press on the bag and force the ingredient out from the container. However, discharge of the fluid tends ...

Claims

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Application Information

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IPC IPC(8): B65D83/62B65D83/64
CPCB65D83/625B65D83/643B65D83/62
Inventor DE, SCHRIJVER, ASTER
Owner GREENSEAL CHEM NV