Carbon fiber bundle and method of manufacturing same
US11286583B2 · kind B2 · utility
0Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2017 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Oct 14, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2321/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A carbon fiber bundle is characterized in that a ratio (n/N) of a number n of pairs wherein a flaw of 50 nm in size or more is present on at least one of the fracture surfaces forming the pair to a total number N of pairs of fiber fracture surfaces selected at random after performing a single fiber tensile test for a gauge length of 10 mm is 35% or less, and in that a single-fiber diameter d is 4.3 μm or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.