Nanofiber web with controllable solid volume fraction
US10926208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Apr 18, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M11/83
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein are nanofiber structures, and methods of making and using the same. In some embodiments, provided is a porous sheet comprising a plurality of nanofibers in contact with a supporting structure comprising a plurality of supporting elements, wherein: the nanofibers have an average diameter of about 10-900 nm; the supporting elements have an average thickness less than, about equal to, or greater than that of the thickness of the nanofibers; the sheet has an average thickness that is about 75%-150% of an average thickness of the supporting elements; a total volume of the nanofibers is less than about 20% of a total volume of the porous sheet; and/or a total volume of the supporting structure is less than about 50% of the total volume of the porous sheet. In some embodiments, provided is a multilayer structure comprising one or more sections, where each section independently comprises one or more porous sheets as described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.