Superabsorbent laminate structure
US5175046A · kind A · utility
171Cited by
11References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1991 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Mar 4, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/254
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A laminated structure in which a superabsorbent material is provided as a layer of discrete discontinuous chunks or elements attached to a continuous porous support layer. The superabsorbent element is provided by saturating a porous substrate with an acrylic acid monomer solution, polymerizing and crosslinking the monomer in the web, and then dicing the monomer/web substrate to produce discrete superabsorbent elements. The superabsorbent elements having various shaped are then affixed to the flexible porous support layer by friction so as to provide the flexible superabsorbent laminated structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.