Preparation of an absorbent sheet
US5514324A · kind A · utility
20Cited by
16References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1993 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Apr 7, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sheet of an absorbent material which, comprises a blend of a fibrous substance and of a granulated substance in which the granulated substance is non-uniformly distributed in the sheet, there being alternating zones of higher and of lower density of said substance along the sheet, is prepared by vacuum depositing (16) a dispersion of the fibrous substance (20) on a moving screen (14) and continuously applying the granulated substance (24) while changing the zone of application in a pendulum-like fashion (34, 36) along the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.