Polyamide curative from substituted amine and dimer fatty acid or ester
US8293863B2 · kind B2 · utility
5Cited by
5References
19Claims
0Family size
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Key dates
| Filing date | Feb 9, 2007 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Jul 3, 2027 |
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.