Hindered bisphenol diphosphonites and stabilized synthetic resin

Details Hindered bisphenol diphosphonites and stabilized synthetic resin Hindered bisphenol diphosphonites and stabilized synthetic resin

1983-06-07

1984-11-06

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

260927R, 260936, C08K 553, C07F 902

Patent

active

044813171

ABSTRACT:
Hindered bisphenol diphosphonites are provided having the structure: ##STR1## wherein: A is selected from the group consisting of thio sulfur --S--; oxy oxygen --O--; alkylidene having from one to about ten carbon atoms; cycloalkylidene having from about four to about eight carbon atoms; and phenylalkylidene having from seven to about twelve carbon atoms;

REFERENCES:
patent: 3234285 (1966-02-01), Moss et al.
patent: 3429837 (1969-02-01), Langrish et al.
patent: 4107138 (1978-08-01), Hofer et al.
patent: 4143028 (1979-03-01), Spivack
patent: 4348495 (1982-09-01), Buysch et al.

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