Expandable and/or disposable ice pack
US12059877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2019 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Feb 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/81
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This disclosure includes ice packs (10) that comprise paper and absorbent material (22A, 22), and also includes various methods of adding liquid to, freezing, shipping, and/or using such ice packs (10). Some of the ice packs (10) of this disclosure have a body (14) that includes first and second layers (54, 58) of paper and one or more side panels (66A) coupled thereto such that the body (14) is expandable. The absorbent material (22A, 22) of some of the ice packs (10) of this disclosure comprises a laminate having an inner layer (70A, 70B, 70C, 70) of superabsorbent polymer disposed between first and second outer layers (78), where the first outer layer (74) comprises tissue and the second outer layer (78) comprises at least one of a tissue and a carded nonwoven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.