Method of making porous, absorbent macrostructures of bonded absorbent particles surface crosslinked with cationic amino-epichlorohydrin adducts
US5451353A · kind A · utility
33Cited by
18References
31Claims
0Family size
Inventors
Key dates
| Filing date | Jun 14, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Jun 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Porous, absorbent macrostructures that, upon contacting liquids such as water or body exudates (e.g., urine), swell and imbibe such liquids, and are useful in absorbent articles such as diapers, adult incontinence pads, and sanitary napkins are disclosed. These porous macrostructures comprise bonded absorbent particles that are surface crosslinked with cationic, preferably polymeric, amino-epichlorohydrin adducts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.