发明授权
US5605973A Bisamidrazone compound and vulcanizing agent for fluorine-containing elastomer comprising the same 失效
双腙腙化合物和含有该含氟弹性体的硫化剂

Bisamidrazone compound and vulcanizing agent for fluorine-containing
elastomer comprising the same
摘要:
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.
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