Polyamides and amidoamines derived from hydroxyalkylpolyamines: epoxy curing agents with improved properties
US11530293B2 · kind B2 · utility
0Cited by
8References
16Claims
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Key dates
| Filing date | Dec 15, 2017 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Dec 15, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/028
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyamide and amidoamine curing agents comprising a selectively modified amine. The selectively modified amine is formed by a substitution reaction between a polyamine and an epoxide, resulting in a multifunctional amine having a hydroxyl substituent. The curing agents are used to form epoxy resins having improved properties when cured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.