Curing agent for low-emission epoxy resin compositions
US11279797B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Feb 14, 2017 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Oct 23, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/17
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A curing agent for epoxy resin compositions containing at least one amine of formula (I) and at least one amine of formula (II). The curing agent is a low-odor, low-viscosity, low-toxicity curing agent and has a low propensity for carbamatization and a high reactivity toward epoxy resins. It enables low-odor and low-emission epoxy resin products which are readily processable and which even at low temperatures and high humidities undergo rapid and problem-free curing to afford high-quality plastics having a high hardness and a regular, non-tacky surface with high gloss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.