Nonabsorbent surge layer having discrete regions of superabsorbent and method for making
US7189888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Nov 25, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53721
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention is a surge material having permanent storage properties that results in faster intake and greater saturation capacity and reduced fluid flowback. More specifically the invention is a surge material with a superabsorbent material printed on in a pattern of discrete regions. The objective of the invention is obtained by printing, or other known application process, a liquid superabsorbent precursor solution containing a crosslinkable composition onto a surge material and then curing the printed surge material to crosslink the polymers to get a surge material having discrete regions of superabsorbent material in the surge material. This invention is also useful in making an absorbent core of an absorbent article with improved strength, increased absorbency, and decreased shedding of superabsorbent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.