abstract |
Ortho-alkylated phenyl phosphonites of the formula ##STR1## wherein R 1 is alkyl, phenyl or phenyl substituted by alkyl, R 2 is tertiary alkyl or phenylalkyl, and R 3 is hydrogen, alkyl or phenylalkyl are useful as stabilizers for organic polymers and lubricating oils, particularly as processing stabilizers for polyolefins. |