Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-04-13
1978-01-17
Czaja, Donald E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
26029363, 26029364, C07D 1106, C08K 534
Patent
active
040691969
ABSTRACT:
Piperidyl esters of the formula ##STR1## wherein R.sub.1 is hydrogen or lower alkyl, R.sub.2 is hydrogen, oxyl alkyl, alkenyl, alkinyl, alkoxy-alkyl, aralkyl or lower acyl and n is 2 or 3, and when n is 2, R.sub.3 is a diacyl of 36 carbons and when n is 3, R.sub.3 is a triacyl of 37 to 54 carbons. These compounds are useful as light stabilizers of polymeric materials.
REFERENCES:
patent: 3640928 (1972-02-01), Murayama et al.
patent: 3840494 (1974-10-01), Murayama et al.
patent: 3984371 (1976-10-01), Murayama et al.
Luzzi John J.
Ramey Chester E.
Ciba-Geigy Corporation
Czaja Donald E.
Fletcher H. H.
Shust Nestor W.
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