Process for the synthesis of polyalkylphenol antioxidants

Details Process for the synthesis of polyalkylphenol antioxidants Process for the synthesis of polyalkylphenol antioxidants

C - Chemistry, Metallurgy

09

K

C09K 15/04 (2006.01) C08G 61/00 (2006.01) C08G 61/12 (2006.01)

Patent

CA 2589855

Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes partially etherifying, polymerizing and thermally rearranging a phenol containing monomer represented by the following structural formula (I): to produce a sterically hindered polymeric macromolecular antioxidant. X, R10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

L'invention concerne un procédé pour la synthèse d'antioxydants polymères entravés de manière stérique à base d'antioxydants monomères de type phénols. Ledit procédé comprend l'éthérification partielle, la polymérisation et le réarrangement thermique d'un monomère contenant du phénol, de formule (I), ceci permettant de produire un antioxydant macromoléculaire polymère entravé de manière stérique. Dans cette formule, X, R10 et q sont spécifiés dans la description. Le procédé de l'invention est un processus simple, direct et économique pour la synthèse d'antioxydants macromoléculaires polymères entravés de manière stérique.

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