Liquid-absorbing barrier bag with adhered swelling absorbent
US12109797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2023 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Apr 7, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A liquid-absorbing, liquid barrier bag comprising a liquid-permeable envelope within which a super-absorbent material in powder or granular form is disposed, the absorbent material being characterized in that it greatly increases in volume upon liquid absorption. The super-absorbent material is adhered to one or more of the inner surfaces of the liquid-permeable envelope such that the desired distribution and pattern is maintained during handling, shipping and activation of the liquid-absorbing. Upon contact with liquid, such as by soaking the bag in water, the super-absorbent material releases from the inner surfaces and swells to create a three-dimensional body suitable for stacking to form a liquid-impermeable barrier wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.