Absorptive material
US4666975A · kind A · utility
56Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1985 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Mar 4, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L15/60
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A polymer in the form of particles is water-insoluble and water-sellable, containing carboxyl or carboxylate groups. It has a physiological saline absorption quantity of 40 to 90 grams per one gram of the polymer, a physiological saline absorption rate of at least 8 ml per 0.3 gram of the polymer, a gel strength of 33 to 200 g/cm2 when it has been swollen to saturation with ion-exchange water. It is useful as an absorbent in a sanitary article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.