N-(aminopropyl)-toluenediamines and their use as epoxy curing agents
US6441238B1 · kind B1 · utility
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31Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Dec 19, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/5033
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention provides N-aminopropylated toluenediamines, processes for synthesizing them, compositions containing them and methods for using them to cure epoxy resins. In preferred embodiments, the N-aminopropylated toluenediamines are represented by the following formula: where the nitrogen atoms are ortho or meta to each other on the aromatic ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.