Heat-curable resin composition, prepreg, and method for producing fiber-reinforced composite using each of same
US10875976B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Nov 21, 2014 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Jul 22, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/035
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a heat-curable resin composition, which comprises (1) a heat-curable resin mixture comprising a heat-curable resin (a) and thickener particles (b) and exhibiting a viscosity (150° C.) after having been held at a temperature of 150° C. for 30 seconds that is a viscosity (S), and (2) a curing agent, and is characterized in that the heat-curable resin composition exhibits a lowest viscosity (R) at 80-120° C., the lowest viscosity (R) is 0.1-10 Pa·s, and the viscosity (S) and lowest viscosity (R) satisfy the relationship of formula (1): 5<S/R<200 formula (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.