Packaging structure for composition of radical polymerization

Abstract

A composition capable of radical polymerization and air are accommodated in a packaging bag prepared using a heat-sealable synthetic resin sheet. In a preferred form, the packaging bag has at least one layer that bars the passage of at least one of a solvent, a gas, visible light and ultraviolet light, such as a metal layer. For example, it is prepared from a sheet of 5-layer laminate structure consisting of, arranged from inside toward outside in sequence, synthetic resin sheet (1) / adhesive layer (2) / synthetic resin sheet (3) / metal layer (4) / synthetic resin sheet (5). The volume of air in the packaging bag is preferably in the range of 1 to 50% based on the volume of composition capable of radical polymerization, and the total thickness of sheets used in the packaging bag is preferably 50 to 300 mu m. The thickness of the metal layer is preferably 5 mu m or more. This packaging form is most suitable for a composition capable of radical polymerization, such as a resist ink, because not only can the aging stability of composition capable of radical polymerization during storage be ensured but also the safety during transportation can be ensured.

Description

technical field [0001] The present invention relates to the packaging form of radically polymerizable compositions such as heat-curable and / or ultraviolet-curable protective layer inks, adhesives, paints, and printing inks, and to ensuring the durability of radically polymerizable compositions over time. While maintaining stability, it is a good packaging form that ensures safety during transportation and also considers environmental factors. Background technique [0002] As resist inks, such as solder resist inks, resist inks, plating resist inks, etc., radically polymerizable compositions are generally used. [0003] Steel cans or plastic containers have been widely used in the conventional packaging of radically polymerizable compositions such as heat-curable and / or ultraviolet-curable protective layer ink materials, adhesives, coatings, and printing inks. [0004] In the use of steel cans, for example, in order to prevent the leakage of volatile components such as solve...

AI Technical Summary

Problems solved by technology

[0008] In this way, the characteristics and environmental measures required for containers of radically polymerizable compositions such as heat-curable and / or ultraviolet-curable protective layer inks, adhesives, coatings, and printing inks have become stricter year by year. Conventional steel cans, Plastic containers are getting harder to cope with

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