Polyalkylpiperidine-substituted lactams and use thereof as stabi

Details Polyalkylpiperidine-substituted lactams and use thereof as stabi Polyalkylpiperidine-substituted lactams and use thereof as stabi

1989-11-20

1990-12-25

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546190, C07D40114

Patent

active

049804766

ABSTRACT:
Compound of the formula (I) ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each alkyl or R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 are together tetra- or pentamethylene and R.sup.5 is hydrogen, alkanoyl, alkyl, cyanoalkyl, hydroxyalkyl, aminoalkyl or phenylalkyl, in which the phenyl nucleus may be substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen, and the acid addition salts and hydrates of these compounds are useful stabilizers for organic materials, in particular plastics.

REFERENCES:
patent: 3684765 (1972-08-01), Matsui et al.
patent: 4238613 (1980-12-01), Rasberger et al.
patent: 4279804 (1981-07-01), Cantatore et al.
patent: 4762872 (1988-08-01), Lai et al.
patent: 4769457 (1988-09-01), Helwig et al.

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