Stabilizers for organic polymers

Details Stabilizers for organic polymers Stabilizers for organic polymers

1987-06-10

1989-08-08

Sutto, Anton H.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

558 78, 558 85, 558194, 524119, 524117, C08K 549, C07F 915

Patent

active

048553450

ABSTRACT:
Compounds of the formula I ##STR1## in which n is 1, 2 or 3, R.sup.1 is C.sub.1 -C.sub.5 -alkyl, cyclohexyl or .alpha.-methylcyclohexyl and, if n is 1, X is a group of the formula II or III ##STR2## in which R.sup.2 and R.sup.3 independently of one another are C.sub.1 -C.sub.8 -alkyl or cyclohexyl, Y is a direct bond, --S--, >S.dbd.O or a radical --CR.sup.4 R.sup.5 -- in which R.sup.4 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, phenyl or benzyl and R.sup.5 is hydrogen or C.sub.1 -C.sub.8 -alkyl, and Z is 1,2-alkylene or 1,3-alkylene having not more than 15 carbon atoms or o-phenylene, and, if n is 2, X is a group of the formula IV or V ##STR3## in which R.sup.6 is methyl or ethyl, and, if n is 3, X is a phosphorus atom, are suitable for stabilizing organic material against light-induced and/or thermo-oxidative degradation.

REFERENCES:
patent: 2847443 (1958-08-01), Hechenbleikner et al.
patent: 4513109 (1985-04-01), Rosenberger
H. J. Lucas, et al., J. Am. Chem. Soc., 72, 5491 (1950).
Unvarified Translation of Japanese, 128044, 12/7/74.

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