Apertured nonwoven webs
US12213866B2 · kind B2 · utility
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25References
20Claims
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Key dates
| Filing date | Apr 18, 2024 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Apr 18, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53035
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apertured nonwoven web is provided. The apertured nonwoven web comprises carded fibers, a first side, and a second side. The apertured nonwoven web defines a plurality of apertures therein. The apertures may each have a first side aperture size and a second side aperture size, and a ratio of the first side aperture size to the second side aperture size may be between about 1.15:1 to about 1:1.15. The plurality of apertures may have an aperture size regularity of about 1% to about 15%. The plurality of apertures may have an aperture shape regularity between about 1% to about 12%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.