Force spun sub-micron fiber and applications
US10119214B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2014 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Aug 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/681
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process of forming a non-woven web including spinning continuous polymeric filaments including one selected from a poly(phenylene ether) component, a poly(phenylene ether)-polysiloxane block copolymer, and combinations thereof. The filaments can have a length to diameter ratio that is more than 1,000,000, and a diameter ranging from 50 nanometers to 5 microns. The spinning can include passing a polymer through a spinneret having a plurality of orifices in a non-electrospinning environment. The process can further include chopping the plurality of continuous filaments and obtaining a plurality of chopped nano-fibers and forming the nano-fibers into a nonwoven web. The spinning can be conducted at a rate of at least 300 grams/hour/spinneret.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.