Non-continuous absorbent composites comprising a porous macrostructure of absorbent gelling particles and a substrate
US5713881A · kind A · utility
148Cited by
81References
38Claims
0Family size
Inventors
Key dates
| Filing date | Oct 30, 1995 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Oct 30, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/15406
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A non-continuous absorbent composite having a plurality of interconnected strands separated by voids. The strands comprises a porous, absorbent macrostructure and a substrate. 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 composite can absorb the liquids without undesirable planer expansion, The composite 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.