Absorbent structure for use in an absorbent article
US6610902B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1999 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/535
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent structure for use in an absorbent article such as a diaper, an incontinence guard, a sanitary napkin, or the like wherein the absorbent structure has two different material types, which are in direct or indirect contact with each other so that liquid can be transferred between the material types. The first material type is constituted by material which swells when absorbing body fluid and the second material type is constituted by material which collapses when absorbing body fluid, wherein the volume increase in the first material type is essentially equal to the volume reduction in the second material type when the absorbent structure is saturated with liquid, whereby the absorbent structure has substantially the same volume both in a wet and in a dry state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.