Sterically hindered phenyl bis(naphthyl)phosphites and compositi

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

1982-11-24

1983-11-15

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

252404, 252400A, 260941, 260967, 524151, C07F 9145, C08K 552

Patent

active

044156863

ABSTRACT:
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 antioxidant and ultraviolet stabilizers that form particularly effective combinations with hydroxyphenylalkyleneyl isocyanurates to provide enhanced oven aging properties to organic materials subject to attack by heat and oxygen.

REFERENCES:
patent: 2058343 (1936-10-01), Moran et al.
patent: 2220845 (1940-11-01), Moyle
patent: 3415907 (1968-12-01), Sconce et al.
patent: 3637582 (1972-01-01), Gilles
patent: 3909491 (1975-09-01), Gilles
patent: 4025486 (1977-05-01), Gilles
patent: 4066608 (1978-01-01), Van Brederode
patent: 4094855 (1978-06-01), Spivack
patent: 4185004 (1980-01-01), Mathis
patent: 4360617 (1982-11-01), Muller et al.

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