Alkylated 2,2'-biphenylene phosphonates and stabilized compositi

Details Alkylated 2,2'-biphenylene phosphonates and stabilized compositi Alkylated 2,2'-biphenylene phosphonates and stabilized compositi

1981-05-26

1984-02-21

Sutto, Anton H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

260936, C08K 552, C07F 915

Patent

active

044330871

ABSTRACT:
Alkylated 2,2'-biphenylene phosphonates are prepared by reacting alkylated 2,2'-biphenol with phosphoros trichloride in an organic solvent and then with a base such as sodium hydroxide. Said phosphonates are useful as stabilizers of organic polymers and lubricating oils, especially as stabilizers for polyolefins, polyesters, and polycarbonates.

REFERENCES:
patent: 4143028 (1979-03-01), Spivack
patent: 4196117 (1980-04-01), Spivack
Mukmeneva et al., "Chemical Abstracts," vol. 82, (1975), 58628v and 140926z.

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