Non-continuous absorbent cores comprising a porous macrostructure of absorbent gelling particles
US5868724A · kind A · utility
91Cited by
80References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1995 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Oct 30, 2015 |
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 comprises 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.