Polytetrafluoroethylene fibers, polytetrafluoroethylene materials and process for preparation of the same
US5562986A · kind A · utility
41Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1995 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Jan 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2976
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Cotton-like polytetrafluoroethylene materials are obtained by opening a uniaxially stretched article of molded polytetrafluoroethylene by a mechanical force. Those cotton-like materials comprise the 5 to 150 mm long fibers having branches and crimps and non-uniform section. The cotton-like materials are excellent in intermingling property and can be easily made into non-woven fabrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.