Acylated derivatives of substituted piperazines and polymeric co

Details Acylated derivatives of substituted piperazines and polymeric co Acylated derivatives of substituted piperazines and polymeric co

1975-06-27

1977-02-08

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260268TR, 260268C, C07D24136

Patent

active

040071561

ABSTRACT:
Acylated derivatives of substituted piperazines are stabilizers for synthetic polymeric materials normally subject to deterioration caused by ultraviolet light. The compounds are prepared by the acylation reaction between a substituted piperazine and a mono or di-acid halide, ester or isocyanate. Polymeric compositions containing these stabilizers may also contain a hindered phenolic compound. A typical embodiment is 15-stearoyl-7,15-diazadispiro[5,1,5,3]hexadecane.

REFERENCES:
patent: 3318876 (1967-05-01), Cignarella et al.
patent: 3899491 (1975-08-01), Ramey et al.
patent: 3920659 (1975-11-01), Ramey et al.
patent: 3928330 (1975-12-01), Ramey et al.
patent: 3928357 (1975-12-01), Ramey et al.

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