Alkylated 1,1'-biphenyl-2,2'-diyl phosphonites and stabilized co

Details Alkylated 1,1'-biphenyl-2,2'-diyl phosphonites and stabilized co Alkylated 1,1'-biphenyl-2,2'-diyl phosphonites and stabilized co

1977-12-05

1979-03-06

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 23H, 260927R, 260936, 260 4595C, C08K 553

Patent

active

041430280

ABSTRACT:
Alkylated 1,1'-biphenyl-2,2'-diyl phosphonites are prepared by reacting alkylated 2,2'-dihydroxybiphenylene with dichloroaryl or dichloroalkyl phosphine in an organic solvent. Said phosphonites are useful as stabilizers of organic polymers and lubricating oils, especially as process stabilizers for polyolefins.

REFERENCES:
patent: 2151680 (1939-03-01), Britton et al.
patent: 3264324 (1966-08-01), Gould et al.
patent: 3270092 (1966-08-01), Harwood
patent: 3297631 (1967-01-01), Bown et al.
patent: 3702878 (1972-11-01), Saito
patent: 3796684 (1974-03-01), Dever et al.
patent: 3819748 (1974-06-01), Dulog et al.
patent: 3848030 (1974-11-01), Viterbo et al.

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