Sterically hindered phenyl bis(naphthyl) phosphites and...

Details Sterically hindered phenyl bis(naphthyl) phosphites and... Sterically hindered phenyl bis(naphthyl) phosphites and...

C - Chemistry, Metallurgy

07

F

400/7072, 31/76,

C07F 9/145 (2006.01) C08K 5/3477 (2006.01) C08K 5/52 (2006.01) C08K 5/526 (2006.01) C09K 15/32 (2006.01)

Patent

CA 1222255

ABSTRACT OF THE DISCLOSURE 2,6-di-t-butyl-4-substituted phenyl bis(3,6-di-t-butyl -2-naphthyl)phosphites, readily prepared by reacting together a phosphorodichloridite of a 4-substituted-2,6-di-t-butylphenol and a sodium salt of 3,6-di-t-butyl -2-naphthol, to form antioxi- dant and ultraviolet stabilizers that form particularly effective combinations with hydroxyphenylalkyleneyl isocyanur- ates to provide enhanced oven aging properties to organic materials subject to attack by heat and oxygen.

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