Epoxy resin system containing polyethylene tetraamines for resin transfer molding processes
US9688807B2 · kind B2 · utility
1Cited by
26References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 11, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Nov 11, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A two-component curable epoxy resin system is disclosed. 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 one or more of i) alkali metal salts, ii) carboxylic acid-, carboxylic anhydride- or carboxylic acid ester-substituted phenol compounds, iii) an amino as a catalyst. The system has beneficial curing characteristics 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.