2,2'-Thio-bis-(6-tert.-butyl-4-methylphenol), 2,2'-thio-bis-(4-octylphenol), 4,4'-thio-bis-(6-tert.-butyl-3-methylphenol ) and 4,4'-thio-bis-(6-tert.-butyl-2-methylphenol). 1.4 Alkylidene-bisphenols 2,2'-Methylene-bis-(6-tert.-butyl-4-methylphenol), 2,2'-methylene-bis-...