Alkyl alkanoate derivatives of substituted piperazine-diones and

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260268TR, 260268DK, C07D24108, C08K 534

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active

039680789

ABSTRACT:
Alkyl alkanoate derivatives of substituted piperazinediones are stabilizers for synthetic polymeric materials normally subject to deterioration caused by ultraviolet light. The compounds may be formed by reacting a substituted piperazinedione with an acrylate or a crotonate, or reacting the alkali or alkaline earth salt of a substituted piperazine dione with a 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-14,16-dione}pr opionate.

REFERENCES:
patent: 3920659 (1975-11-01), Ramey et al.

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