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US 11,454,439 B2Granted
Disposable ice pack
AssigneeDomtar Paper Company, LLC
InventorsBrian Spain, Paul Kenyon, Murray Ross
Life of this patent
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Abstract
This disclosure includes ice packs that comprise paper and absorbent material, and also includes various methods of making, adding liquid to, freezing, shipping, and/or using such ice packs. This disclosure also includes assemblies that include one or more such ice packs, such as, for example, a container of a plurality of such ice packs in dry, wet, and/or frozen states, or a container that includes an ice pack in a hydrated, frozen state and one or more perishable items.
Claims8
An apparatus comprising:
- a body comprising paper configured to resist degradation when exposed to water,
- wherein:
- the body defines an interior chamber and an opening in communication with the interior chamber;
- and
- the opening is configured to receive liquid into the interior chamber and to be closed after the liquid is received in the interior chamber;
- and
- an absorbent material disposed in the interior chamber such that, when liquid is received into the interior chamber from the opening, the absorbent material absorbs at least some of the liquid, wherein:
- the absorbent material comprises super absorbent polymer (SAP) and cellulosic fibers;
- and
- the SAP comprises 30 percent by weight or less of the absorbent material, and the cellulosic fibers comprise 70 percent or more by weight of the absorbent material.
7 more elements
Dependencies are inferred from the claim text.