Patent ID: 7888414

Claim:
A composition comprising a phosphite blend, said phosphite blend consisting of at least two different phosphites of the structure wherein R 1 , R 2 , and R 3 are independently selected alkylated aryl groups of the structure wherein R 4 , R 5 , and R 6 are independently selected from the group consisting of hydrogen and C 1 -C 6 alkyl, and at least one of R 4 , R 5 , and R 6 in each phosphite is selected from the group consisting of tert-butyl and tert-pentyl, which blend of phosphites is prepared by reacting a phosphorous trihalide with a mixture of phenols said mixture of phenols comprising a p-alkylated phenol and an o,p-dialkylated phenol and wherein said phosphite blend is a liquid at room temperature and atmospheric pressure.