Epoxy resin composition, prepreg, carbon fiber-reinforced composite material, and manufacturing methods therefor
US10647849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Jul 25, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/035
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides an epoxy resin composition comprising at least the following component [A], component [B] and component [C], the epoxy resin composition being characterized in that: the mixture of component [A] and component [B] is a mixture that, when temperature is increased at 2° C./min, begins to thicken at temperature (T1) and completes thickening at temperature (T2), temperature (T1) being 80-110° C. and temperature (T1) and temperature (T2) satisfying the relationship of expression (1) 5° C.≤(T2−T1)≤20° C. expression (1); and the mixture of component [A] and component [C] is a mixture that, when temperature is increased at 2° C./min, begins to cure at temperature (T3), temperature (T1) and temperature (T3) satisfying the relationship of expression (2) 5° C.≤(T3−T1)≤80° C. expression (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.