Carbon fiber bundle, prepreg, and fiber-reinforced composite material
US11746445B2 · kind B2 · utility
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2References
7Claims
0Family size
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Key dates
| Filing date | Sep 13, 2022 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Sep 13, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An object of the present invention is to provide a carbon fiber which exhibits excellent strength development rate when used in a composite material. The present invention that solves the problems is a carbon fiber which simultaneously satisfies the following formulae (1) and (2): Lc/d≤3 (1)TS×d×Lc>6.0×105 (2)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.