First thermal insulation and cold insulation appliance

Abstract

This product is a neck warming / cooling device worn around the neck to warm or cool. It is made into a roughly ring-shaped form by engaging a ring-shaped shape-retaining band with one open part with a warming / cooling part made of a band-like connection of bags containing a phase-change material that solidifies at a predetermined temperature (e.g., 28°C) or below. The shape-retaining band engages with the warming / cooling part by inserting it into a band-looping hole formed in the warming / cooling part. The shape-retaining band is made of a rigid and elastic material such as acrylic resin, and the warming / cooling part is made of a flexible and elastic material such as polyurethane-based thermoplastic elastomer.

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