Shear spun sub-micrometer fibers
US10400355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2014 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jun 8, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/46
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process including shearing a first dispersion medium and a second dispersion medium under conditions that precipitate a plurality of polymeric fibers; and collecting the plurality of polymeric fibers at a rate of at least 300 grams/hour. The first dispersion medium is a solution including at least one polymeric component. The at least one polymeric component includes a polyetherimide component selected from the group consisting of polyetherimide homopolymers, polyetherimide co-polymers, polyetherether ketones homopolymers, polyetherether ketones copolymers, polyphenylene sulfones homopolymers, polyphenylene sulfones copolymers, and combinations thereof. Products produced by the process can be non-woven paper, medical implants, ultra-fine filters, membranes, hospital gowns, electrical insulation paper, honeycomb structures and personal hygiene products, dialyzers, blood, oxygenator filters, intravenous (IV) filters, diagnostic test filters, and blood/apheresis filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.