Antioxidant tetrakis methane

The tetra nuclear phenolic antioxidant tetrakis methylene [3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] methane (Irganox 1010), designed for the stabilization of polypropylene, is oxidized in the yield of about 75 % to tetrakis methylene [3-(l-tert-butylphenoxy-3,5-di-tert-butylcyclohexa-2,5-diene-4-onyl) propionate] methane LXXXIX118. ... 

Chem. Descrip. Aliphatic resin, stabilized with 0.05% antioxidant (tetrakis[methylene(3,5-di-t-butyl-4-hydroxyhydrocinnamate)]methane) Uses Tackifier in pressure-sensitive and hot-melt systems, pkg. adhesives, coatings... 

A large number of hindered phenoHc antioxidants are based on the Michael addition of 2,6-di-/ f2 -butylphenol and methyl acrylate under basic catalysis to yield the hydrocinnamate which is a basic building block used in the production of octadecyl 3-(3,5-di-/ f2 butyl-4-hydroxyphenyl)propionate, [2082-79-3], tetrakis(methylene-3(3,5-di-/ f2 butyl-4-hydroxylphenyl)propionate)methane [6683-19-8], and many others (63,64). These hindered phenolic antioxidants are the most widely used primary stabilizers in the world and are used in polyolefins, synthetic and natural mbber, styrenics, vinyl polymers, and engineering resins. 2,6-Di-/ f2 -butylphenol is converted to a methylene isocyanate which is trimerized to a triazine derivative... 

Probably the most widely used antioxidant in plastics is tetrakis[methylene(3,5-di-t-butyl-4-hydroxyhydrocirmamate)]methane, abbreviated as per the above convention... 

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