| abstract |
DIHYDROCARBYLHYDROXPHENYL ARYL OR ALKYL PHOSPHONITES, PHOSPHONATES, PHOSPHATES, PHOSPHITIES, PHOSPHINATES, PHOSPHINITES, PHOSPHOROTHIONATES, PHOSPHONOTHIONATES, AND PHOSPHINOTHIONATES ARE ANTIOXIDANTS. THE EFFECTIVENESS OF THESE ANTIOXIDANTS IS ENHANCED BY USE IN COMBINATION WITH A DIHYDROCARBYLTHIODIALKANOATE SUCH AS A DILAURYLTHIODIPROPIONATE (DLTDP). THE STABILIZERS ARE ESPECIALLY USEFUL AS POLYPROPYLENE, AND MINERAL AND SYNTHEIC LUBRICANTS. |