Superabsorbents, nanofiber nonwovens finished therewith and use thereof
US8541643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2005 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | May 30, 2027 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a superabsorbent powder consisting of polymer particles which have a core swelling in the presence of water and a superficially postcured shell, in which the powder is a screening fraction of such polymer particles which have not been crushed after the superficial postcure of their shell. This superabsorbent powder is especially suitable for the finishing of textile webs made of super-fine fibers or filaments with a diameter of less than 10 μm, in particular for the finishing of sanitary products. There is further proposed the use of a nanofiber nonwoven, finished with a superabsorbent for the absorption and retention of hydrophilic fluids, for the absorption and/or sustained release of at least one of the following fluids: body fluids, sweat of humans and animals, water, including cooling water, condensation water and water vapor, chemicals, including agrochemicals and pesticides, pharmaceuticals, biocides, germicides and fungicides, diagnostics, fire protection and fire extinguishing agents, cleaning agents, hydraulic fluids, heating and cooling fluids, sewage, including radioactively contaminated fluids, perfumes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.