Flexible absorbent laminates
US4293609A · kind A · utility
55Cited by
6References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1980 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Jun 30, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/674
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Flexible absorbent laminates made from crushed films of lightly crosslinked or water-swellable hydrophilic polymers with layers of wicking substrates are disclosed. The crushed laminates are made by drying the laminates to less than 8% moisture and crushing them preferably between a yieldable roller and an enbossed roller. The crushed laminates have a tissue-like feel at low relative humidities with rapid absorption and are useful to make baby diapers or adult diapers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.