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Irganox® XP 420

Technical Datasheet | Supplied by BASF
Irganox® XP 420 is a blend of 33% tetrakis(2,4-di-tert-butylphenyl)[1,1-biphenyl]-4,4'diylbisphosphonite, 50% pentaerythritol tetrakis[3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate] and 17% 5,7-di-t-butyl-3-(3,4 di-methylphenyl)-3H-benzofuran-2-one. It is basically a blend of 33% IRGAFOX P-EPQ, 50% IRGANOX 1010 and 17% HP-136. Acts as a high performance stabilizer system. It improves original melt flow and offers low initial color and outstanding color maintenance. Provides cost/performance improvements in polymer stabilization. HP-136 functions as a carbon-centered radical scavenger which inhibits process inducing oxidation. IRGAFOX P-EPQ, an organic phosphite of low volatility, protects the polymer during processing by decomposing the hydroperoxides. IRGANOX 1010, a hindered phenolic antioxidant, contributes synergistically to polymer stabilization during processing and provides long-term thermal stability by preventing degradation. It is compatible with elastomers, HDPE, polypropylene, engineering plastic including aliphatic polyketone, styrene homo- and copolymers and polyurethanes. Its recommended dosage rate is 0.05-0.15%. It is approved for food contact applications. It is listed in Canada, Japan, EU, Korea and USA.
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Product Type
Antioxidants
Chemical Composition
Blend of 33% tetrakis(2,4-di-tert-butylphenyl)[1,1-biphenyl]-4,4'diylbisphosphonite, 50% pentaerythritol tetrakis[3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate] and 17% 5,7-di-t-butyl-3-(3,4 di-methylphenyl)-3H-benzofuran-2-one
Physical Form
Powder, Free-flowing
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