Curing agent for epoxy resin coatings
US9340701B2 · kind B2 · utility
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4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2012 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Nov 9, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L79/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to curing agents for epoxy resins including an alkylated polyethyleneimine. These curing agents have high functionality and a high content of secondary amino groups. Together with epoxy resins, they cure surprisingly quickly and without blushing effects even under humid and cold conditions to form films having very high cross-linking density. They are suited for coatings with high resistance requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.