Disposable absorbent articles containing particulate, free-flowing, insoluble swellable polymers
US4058124A · kind A · utility
83Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1975 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Mar 28, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/904
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Particulate, free-flowing, insoluble swellable polymers are provided which are comprised of a mixture of an insoluble, swellable hydrogel and inert filler. The mixtures are free-flowing powders or granules which can absorb many times their weight of water and hence are useful as a soil amendment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.