ALKYLATED 2,2'-BIPHENYLENE PHOSPHONITES AND STABILIZED COMPOSITIONS CONTAINING THEM

摘要

Alkylated 2,2'-biphenylene phosphonites are prepared by reacting alkylated 2,2'-dihydroxybiphenylene with dichloroaryl or dichloroalkyl phosphine in an organnic solvent. Said phosphonites are useful as stabilizers of organic polymers and lubricating oils especially as process stabilizers for polyolefins.