Alkyl alkanoate derivatives of substituted piperazines and polym

Details Alkyl alkanoate derivatives of substituted piperazines and polym Alkyl alkanoate derivatives of substituted piperazines and polym

1975-05-30

1976-11-16

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 458NT, 260 4585B, 260 4595D, C08K 534

Patent

active

039923517

ABSTRACT:
Alkyl alkanoate derivatives of substituted piperazines are stabilizers for synthetic polymeric materials normally subject to deterioration caused by ultraviolet light. The compounds may be formed by reacting a substituted piperazine with an acrylate or reacting a substituted piperazine with an .alpha.-haloalkanoate. Polymeric compositions containing these stabilizers may also contain a hindered phenolic compound. A typical embodiment is n-octadecyl-.beta.-(15{7,15-diazadispiro[5,1,5,3]hexadecane}propionate.

REFERENCES:
patent: 3318876 (1967-05-01), Cignarella et al.
patent: 3547875 (1970-12-01), Bonkowski
patent: 3681358 (1972-08-01), Kleiner
patent: 3865826 (1975-02-01), Schwartz et al.

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