Cooling pad and methods of making and using the same
AssigneeEztia Corp.
InventorTIFFANY YEH
Life of this patent
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Abstract
A cooling pad, a method of making the cooling pad, and a method of using the cooling pad are provided. Such a cooling pad includes a hydrogel layer, a protective backing layer coated with a first adhesive layer, and a second adhesive layer. The backing layer coated with the first adhesive layer, and the second adhesive layer are disposed on two different sides of the hydrogel layer. The hydrogel layer comprises a base polymer as a first base ingredient for the hydrogel layer, a second base ingredient for the hydrogel layer, and an additive or filler, which may include a moisture absorbing agent, a stabilizing agent, an antimicrobial agent, a photothermal agent, or any other additive or filler, or any combination thereof.
Claims20
A cooling pad, comprising:
- a hydrogel layer configured to provide cooling, the hydrogel layer comprising a solid gel portion and a liquid portion comprising water, wherein the liquid portion is embedded and distributed within the solid gel portion, and the solid gel portion comprises a base polymer as a first base ingredient for the hydrogel layer, moieties of a second base ingredient for the hydrogel layer, and an additive or filler;
- a protective backing layer coated with a first adhesive layer disposed on a first side of the hydrogel layer, the first adhesive layer disposed between the hydrogel layer and the protective backing layer;
- and
- a second adhesive layer disposed on a second side of the hydrogel layer, the second side being opposite to the first surface,
- wherein the protective backing layer is a bioplastic film comprising alginate and/or carboxymethylcellulose crosslinked by calcium chloride, and
- wherein the first adhesive layer is a bioglue comprising chitosan.
Dependencies are inferred from the claim text.