Method for making a stabilized absorbent composite
US7718021B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Mar 18, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1084
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for forming and stabilizing an absorbent composite web includes conforming a first web onto a forming surface having a plurality of raised nubs having upper surfaces. The first web defines a plurality of bond areas corresponding to those portions of the first web overlying the upper surfaces of the nubs. The method further includes depositing absorbent material onto the first web to form a unitary absorbent core having a plurality of holes therein. The method further includes joining a second web to the first web at the bond areas to form an absorbent composite web. The unitary absorbent core is positioned between the first web and the second web. The first web and the second web are bonded together through the holes in the absorbent core. The method further includes removing the absorbent composite web from the forming surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.