Vapor-permeable, substantially water-impermeable multilayer article
US9827755B2 · kind B2 · utility
2Cited by
389References
38Claims
0Family size
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Inventor
Key dates
| Filing date | Jun 22, 2012 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Jan 17, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/678
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.