Epoxy resin system for making carbon fiber composites
US10479858B2 · kind B2 · utility
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Key dates
| Filing date | Jun 22, 2016 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jun 28, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2125/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A two-component curable epoxy resin system including a dye solution. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol. The system also includes a hardener mixture containing mainly polyethylene tetraamines. The system includes triethylene diamine in specific amounts as a catalyst. The system has beneficial curing characteristics with desired color that make it useful for producing fiber-reinforced composites in a resin transfer molding process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.