Fiber of a fluorocarbon polymer and a process for producing the same
US5004648A · kind A · utility
8Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1988 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Aug 26, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2973
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is disclosed a fiber of a fluorocarbon polymer having pendant ion exchange groups, the fiber having a tensile strength at break as high as at least 1.0 g/denier. The fiber can be produced by subjecting to hydrolysis or chemical modification treatment a filament of a fluorocarbon polymer having ion exchange precursor groups in melt-fabricatable form to convert the ion exchange precursor groups to ion exchange groups in melt-nonfabricatable form and subjecting the resultant heat-infusible filament to drawing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.