发明授权
US4529533A Substituted 2-(2,6-di-t-butly-4-alkylphenoxy) 4H-1,3,2-benzodioxaphosphorins and compositions thereof 失效
取代的2-(2,6-二叔丁基-4-烷基苯氧基)4H-1,3,2-苯并二氧杂磷杂环素及其组合物

Substituted 2-(2,6-di-t-butly-4-alkylphenoxy)
4H-1,3,2-benzodioxaphosphorins and compositions thereof
摘要:
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.
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