Substituted 4-hydroxyphenylthio benzoate stabilizers

Details Substituted 4-hydroxyphenylthio benzoate stabilizers Substituted 4-hydroxyphenylthio benzoate stabilizers

1983-09-26

1985-11-12

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

260455R, 524222, 524283, 524289, 560 66, 560 72, 564177, 564179, C08K 520, C08K 536

Patent

active

045529264

ABSTRACT:
The title compounds correspond to the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl, A is alkylene, X is --NH-- or --S--, m is 1 and n is 0 or 1, and are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.

REFERENCES:
patent: 3285855 (1966-11-01), Dexter et al.
patent: 3944594 (1976-03-01), Kleiner et al.
patent: 4108831 (1978-08-01), Cottman
patent: 4120846 (1978-10-01), Spivack et al.
patent: 4128530 (1978-12-01), Cottman
patent: 4311637 (1982-01-01), Cottman
CA 67, 73382u, (1967).

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