Nippon Mektron Limited

Victor Filippovich Cherstokov

Haruyoshi Tatsu

Satoru Saito

Takehiro Sonoi

Sergei Rafailovich Sterlin

Nina Ivanovna Delyagina

2.2'-bis(3-mercaptophenyl)hexafluoropropane [bisthio-phenol AF] is obtained in good yield by chlorosulfonating 2.2'-bisphenylhexafluoropropane and reducing the thus quantitatively obtained 2,2'-bis(3-chlorosulfonylphenyl)-hexafluoropropane with zinc under acidic conditions and is effectively used as a cross-linking agent for a fluorine-containing elastomer having halogenophenyl groups as cross-linkable groups.

Process for producing bisthiophenolperfluoroalkylidene compound

2,2 bis(3-mercaptophenyl)hexafluoropropane �bisthiophenol AF! is obtained in good yield by chlorosulfonating 2,2'-bisphenylhexafluoropropane and reducing the thus quantitatively obtained 2,2'-bis(3-chlorosulfonylphenyl)hexafluoropropane with zinc under acidic conditions and is effectively used as a cross-linking agent for a fluorine-containing elastomer having halogenophenyl groups as cross-linkable groups.

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Moscow, Russia

Victor Filippovich Cherstokov