Formation of core-shell fibers and particles by free surface electrospinning
US9903050B2 · kind B2 · utility
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Key dates
| Filing date | Nov 6, 2013 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Oct 28, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2331/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are methods that utilize the differences in physical properties between two coating fluids to form core-shell particles or core-shell fibers by coaxial free-surface electrospinning. The methods are able to achieve higher productivity than known methods, and are tunable. Nonwoven fiber mats of electrospun fibers have garnered much scientific and commercial interest in recent years due to their unique properties, such as their high porosity, high surface area and small diameter fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.