Hardener for epoxy resins
US9290609B2 · kind B2 · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2012 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Jul 28, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention concerns low-odor, low-viscosity hardeners for epoxy resins, including an amine with at least one amino group of formula (I) and an amine with at least one amino group of formula (II), wherein the amino groups of formulas (I) and (II) are present in a particular ratio.These hardeners harden quickly with epoxy resins and without blushing to form films of high hardness and good resistance. They are especially suitable for low-emission coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.