Absorbent devices and precursors therefor
US5328450A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Sep 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24331
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent device which comprises an absorbent layer having an apertured contoured polymer film attached to a surface, wherein this surface is provided with a plurality of depressions which communicate directly with the apertures in the film. The device may be produced by separating the polymer film and a carrier material which have been formed into a laminate having impressed therein raised areas defining, for example, the strands of net and depressed areas such that upon separation the depressed areas of the film remain attached together with associated portions of the attached absorbent, to the carrier, leaving the raised areas attached to the remainder of the absorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.