Absorbent core and absorbent articles comprising said core
US11998433B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2018 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Jul 11, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53454
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent core comprising: a front portion; a back portion; a middle portion positioned between the front portion and the back portion; and a longitudinal axis extending along a length of said core and crossing said front, middle and back portions, the absorbent core having a width extending perpendicular to said length and a perimeter comprising at least two opposing ends and at least two opposing sides positioned between said ends, said core being a multi-layer core comprising at least two distinct core layers, wherein a first core layer comprises a channel having a first shape and a second core layer comprises a further channel having a second shape and wherein the first and second core layers are disposed one on top of the other such that a third channel shape is formed along said core length and width, and wherein said first and second shapes are substantially the same and are different to said third shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.