N-cyanocarboxylic acid amides, processes for their preparation and their use
US4618712A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1983 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | Feb 15, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/4014
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
N-Cyanocarboxlic acid amide derivatives which contain two or three ##STR1## groupings in the molecule are obtained by reacting 1 mol of a dicyanodiamine with 2 mols of a carboxylic acid anhydride or 1 mol of a dicyandiamine salt with 2 mols of a carboxylic acid halide or 1 mol of a dihalogeno compound with 2 mols of an N-cyanocarboxylic acid amide salt, or by reacting 1 mol of a carboxylic acid dichloride or trichloride with 2 or, respectively, 3 mols of a cyanamide or 1 mol of a carboxylic acid dicyandiamide or tricyantriamide salt with 2 or 3 mols of an alkylating agent. The N-cyanocarboxylic acid amide derivatives according to the invention are useful hardeners for epoxide resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.