Methods for making non-continuous absorbent cores comprising a porous macrostructure of absorbent gelling particles
US5925299A · kind A · utility
36Cited by
82References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Jun 24, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53782
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A non-continuous absorbent core having a plurality of interconnected strands separated by voids. The strands comprise a porous absorbent macrostructure. The porous macrostructure has interconnected absorbent gelling particles that are surface crosslinked with cationic, preferably polymeric, amino-epichlorohydrin adducts. Upon contacting liquids such as water or body exudates (e.g., urine), the absorbent core can absorb the liquids without undesirable planer expansion. The core is useful in absorbent articles such as diapers, adult incontinence pads, and sanitary napkins are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.