Wetlaid unitary stratified composite containing absorbent material
US6673983B1 · kind B1 · utility
96Cited by
114References
39Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249949
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A unitary stratified composite composed of a first stratum and a second stratum integrally connected by a transition zone is disclosed. The first stratum serves as a liquid acquisition stratum that rapidly acquires and then transfers liquid to the second stratum. The second stratum serves to withdraw liquid from the first stratum and further serves as a temporary storage stratum. Methods for forming the unitary stratified composite are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.