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    • 3. 发明公开
    • Carboxylic acid esters with thio groups
    • Carbonsäureestermit Thiogruppen。
    • EP0475215A1
    • 1992-03-18
    • EP91114626.4
    • 1991-08-30
    • THE GOODYEAR TIRE & RUBBER COMPANY
    • Sturm, Budd HarveyKuczkowski, Joseph Andrew
    • C07C323/52C08K5/36
    • C09K15/26C07C323/52
    • The present invention relates to thioesters having the structural formula:

      wherein R x is selected from the group of formulae consisting of:

      R¹, R² and R³ are independently selected from the group of radicals consisting of hydrogen or methyl; R⁴ and R⁵ are independently selected from the group of radicals consisting of hydrogen, alkyls having 1 to 18 carbon atoms, aryls having 6 to 10 carbon atoms, aralkyls having 7 to 9 carbon atoms, and radicals of the formula:

      and R⁶ is selected from the group of radicals consisting of alkyls having 1 to 24 carbon atoms, aryls having 6 to 12 carbon atoms and aralkyls having 7 to 12 carbon atoms.
      These thioesters are particularly useful as a synergist for conventional phenolic and amine antioxidants.
    • 本发明涉及具有以下结构式的硫酯:其中R x选自由下式组成的组:其中R 1,R 2和R 3独立地选自 由氢或甲基组成的基团组; R 4和R 5独立地选自氢,具有1至18个碳原子的烷基,具有6至10个碳原子的芳基,具有7至9个碳原子的芳烷基,式 :和R 6选自由具有1至24个碳原子的烷基,具有6至12个碳原子的芳基和具有7至12个碳原子的芳烷基组成的基团。 这些硫酯特别可用作常规酚类和胺类抗氧化剂的增效剂。