Antimicrobial nonwoven polyamides with zinc content
US12336539B2 · kind B2 · utility
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28References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 17, 2023 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Aug 17, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/607
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a nonwoven polyamide structure having antimicrobial properties comprising: nonwoven polyamide fibers comprising less than 4000 ppm zinc dispersed within the nonwoven polyamide fibers; and less than 2000 ppm phosphorus. The fibers have an average fiber diameter of less than 25 microns; and the polyamide structure demonstrates a Staphylococcus aureus reduction of at least 90%, as measured by ISO 20743-13.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.