Absorbent films and laminates
USRE31822E · kind E · reissue
6Cited by
11References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1980 |
| Grant date | Feb 5, 1985 |
| Priority date | — |
| Expiry date | Mar 24, 2000 |
Classification
- Technology area (CPC —)General
Abstract
Water swellable aerated films and laminates, made from solutions of carboxylic polyelectrolytes, together with methods for their preparation, are disclosed. The films and laminates are cured and/or crosslinked with a polyfunctional or difunctional crosslinking agent that is reactive with carboxylate groups by heating and/or removing substantially all of the water and/or alcohol from the precursor composition. The solutions are mechanically aerated prior to the curing step. The absorbent articles have a rapid water absorbency rate and are useful as components in diapers, tampons, dressings and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.