Substituted 2-(2,6-di-t-butly-4-alkylphenoxy) 4H-1,3,2-benzodiox

Details Substituted 2-(2,6-di-t-butly-4-alkylphenoxy) 4H-1,3,2-benzodiox Substituted 2-(2,6-di-t-butly-4-alkylphenoxy) 4H-1,3,2-benzodiox

1982-09-17

1985-07-16

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524117, 524118, 252405, 252400R, 260936, 260967, C07F 928, C08K 553

Patent

active

045295336

ABSTRACT:
Substituted 2-(2,6-di-t-butyl-4-alkylphenoxy)-4H-1,3,2-benzodioxaphosphorins that are readily prepared, for example from hindered phenols and ortho-methylolphenols, are effective heat and anti-oxidant stabilizers for organic materials subject to degradation by heat and oxygen, and provide particularly efficient stabilizer systems when combined with hydroxyphenylalkyleneyl isocyanurates.

REFERENCES:
patent: 2944074 (1960-07-01), Atherton
patent: 3022330 (1962-02-01), Lanham
patent: 3531483 (1970-09-01), Gilles
patent: 4025486 (1977-05-01), Gilles
patent: 4415686 (1983-11-01), Chasar
patent: 4439564 (1984-03-01), Chasar
Biryukov et al., C.A. 76(14):73172m, Effectiveness of Mixtures of Stabilizers Possessing an Antioxidizing Synergetic Effect.
Kirpichnikov et al., CA 75 (26):152489c, Protection of Polymers by Phosphorous Acid Esters from Derivatives of Metals of Variable Valance.
Kirpichnikov et al., CA 73(4):15657a, Phosphorous Acid Esters as Colorless Stabilizers of Low-Pressure Polyethylene.

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