2,2,6,6-tetramethylpiperidine derivatives for use as stabilizing

Details 2,2,6,6-tetramethylpiperidine derivatives for use as stabilizing 2,2,6,6-tetramethylpiperidine derivatives for use as stabilizing

1995-11-02

1997-03-11

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

544198, C08K 53492, C07D40300

Patent

active

056102119

ABSTRACT:
Compounds of the formula (I) ##STR1## in which n is zero or 1, X denotes a group of formula (II), ##STR2## R.sub.1 and R.sub.5 are e.g. hydrogen, R.sub.2, R.sub.3 and R.sub.4, which may be identical or different, are C.sub.2 -C.sub.12 alkylene, R.sub.6 is e.g. hydrogen or C.sub.1 -C.sub.18 alkyl and R.sub.7 is e.g. hydrogen or C.sub.1 -C.sub.8 alkyl, are useful as stabilizers for organic materials against degradation induced by light, heat or oxidation.

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