Method for synthesizing dinitriles, products obtained thereby and their derivatives
US4279834A · kind A · utility
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1References
7Claims
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Key dates
| Filing date | Jan 17, 1980 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Jan 17, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New dinitriles are prepared by reacting an alpha, beta saturated nitrile with an alpha, beta unsaturated nitrile. For this preparation subzero temperatures are preferred. Higher diamines can be prepared by hydrogenating the dinitriles thus obtained, such diamines being reacted with a dicarboxylic acid or a salt, ester or chloride of such an acid to prepare polyamides having an amorphous character, i.e. transparent polyamides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.