Method of making an improved expanded PTFE fiber
US5635124A · kind A · utility
16Cited by
14References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Jun 1, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3976
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention is an expanded polytetrafluoroethylene (PTFE) fiber with improved handling properties. Unlike previous expanded PTFE fibers, the fiber of the present invention employs a fiber of increased thickness so that the fiber is maintained in an unfolded orientation. The improved processing steps of the present invention create a fiber that has a number of improved properties, including more uniform dimensions along its length, improved compressibility and handling, and when woven into a fabric, the fabric is more easily processed, is of higher quality, and is more uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.