Hydrolytically stable ortho-alkylated phenyl phosphonites and st

Details Hydrolytically stable ortho-alkylated phenyl phosphonites and st Hydrolytically stable ortho-alkylated phenyl phosphonites and st

1979-07-09

1980-11-11

Randolph, John D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4595D, 260941, 260942, 260960, 260962, 260 457PH, C08K 332, C08L 2332, C07F 902, C07F 948

Patent

active

042332079

ABSTRACT:
Hydrolytically stable, ortho-alkylated phenyl phosphonites of the formula ##STR1## wherein R.sup.1 and R.sup.2 are alkyl or phenylalkyl, R.sup.3 is hydrogen, alkyl or carboalkoxyalkyl, R.sup.4 is alkyl, phenyl or phenyl substituted by alkyl, R.sup.5 is halogen, --XH or XR.sup.6 where X is O or S and R.sup.6 is phenyl substituted by alkyl, phenylalkyl or carboalkoxyalkyl, are useful as stabilizers for organic polymers and lubricating oils, particularly as processing stabilizers for polyolefins.

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