Patent ID: 7947769

Claim:
A method for forming a phosphite composition which phosphite composition is a liquid at ambient conditions and comprises at least two of a tris(diamylaryl)phosphite; a tris(monoamylaryl)phosphite; a bis(diamylaryl)monoamylaryl phosphite; and a bis(monoamylaryl)diamylaryl phosphite, the method comprising: contacting one or more amylenes with a phenol at a molar ratio ranging from 1:1 to 6:1 in the presence of a catalyst and under conditions effective to form an alkylate composition comprising a monoamylphenol in an amount ranging from 25 weight percent to 99 weight percent; and a diamylphenol in an amount ranging from 1 weight percent to 60 weight percent; wherein the weight percentages are based on the total weight of all components in the alkylate composition; and reacting a phosphorus polyhalide with the alkylate composition to produce the phosphite composition.