Absorbent article and production process therefor
US6150582A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1998 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | May 21, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/15463
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention clarifies absorption properties of a water-absorbent resin as needed in the case where the ratio by weight of the water-absorbent resin to the total of the water-absorbent resin and the fibrous material is ".alpha.," and further the invention provides an absorbent article using a water-absorbent resin which is optimal to the ratio by weight ".alpha." of the water-absorbent resin. A water-absorbent resin, having a concentration absorption index of 35 or more as shown by the following equation (1): EQU A(1-.alpha.)+B.alpha. (1) wherein A (g/g) is an absorption capacity of the resin under no load, and B (g/g) is an absorption capacity of the resin under a load, is used as the water-absorbent resin as used for the absorbent article of at least 0.4 in the ratio by weight ".alpha." of the water-absorbent resin to the total of the water-absorbent resin and the fibrous material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.