Process of making nanofibers
US8524140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2009 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Jun 10, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/728
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A container having a plurality of orifices in an outer peripheral wall and having a space communicating with the orifices is rotated to extrude an electrically charged raw material liquid containing a polymer material from the space through the orifices by centrifugal force. This allows the electrically charged raw material liquid to form a fibrous material. At this time, the raw material liquid is supplied to the space in which the raw material liquid is filled by a raw material liquid pump so that the raw material liquid is extruded from the orifices at a predetermined pressure. That is, the raw material liquid in the space is pressurized. Also, the shape of the space in the container is set so that the centrifugal force exerted on the raw material liquid is constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.