Bisamidrazone compound and vulcanizing agent for fluorine-containing elastomer comprising the same
US5605973A · kind A · utility
11Cited by
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2Claims
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Key dates
| Filing date | Oct 23, 1995 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Oct 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/29
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel compound, 2,2-bis(4-carboxyphenyl)hexafluoropropane bisamidrazone, obtained by conversion of the carboxy groups of 2,2-bis(4-carboxyphenyl)hexafluoropropane to acid chloride groups, followed by reaction with ammonia; dehydration reaction of the resulting 2,2-bis(4-carboxyphenyl)hexafluoropropane diamide; reaction of the thus obtained 2,2-bis(4-cyanophenyl)hexafluoropropane with alcohol; and reaction of the resulting 2,2-bis(4-carboxyphenyl)hexafluoropropane bisiminoalkyl ether with hydrazine is a useful vulcanizing agent for fluorine-containing elastomer having cyano group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.