Polyamide curative from substituted amine mixture and dimer fatty acid or ester
US7655736B2 · kind B2 · utility
3Cited by
3References
20Claims
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Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Apr 2, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides polyamide curing agent compositions comprising the reaction products of (1) multifunctional amines of structure 1where R1 is CH2CH2CH2NH2; R2, R3 and R4 independently are H or CH2CH2CH2NH2, and X is CH2CH2 or CH2CH2CH2 with (2) dimer fatty acids, optionally in combination with monofunctional fatty acids, the reaction product preferably comprising at least 15 wt % tetrahydropyrimidine-containing components. The curing agent compositions are useful for crosslinking epoxy resins to produce coatings, adhesives, floorings, composites and other articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.