Method of making an absorbent composite
US6863924B2 · kind B2 · utility
860Cited by
59References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2002 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L15/425
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a method of making an absorbent composite, a porous, stabilized structure is formed and impregnated with a flowable superabsorbent precursor. The flowable superabsorbent precursor is cross-linked to form a superabsorbent material within the stabilized structure. The surface area of one of the flowable superabsorbent precursor impregnated with the stabilized structure and the superabsorbent material formed within the structure is increased. In one embodiment, the surface is increased by freeze drying the impregnated structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.