Light and heat stabilizers for polyolefins

Details Light and heat stabilizers for polyolefins Light and heat stabilizers for polyolefins

1976-03-18

1977-12-20

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

26029363, 26029364, 26029388, C07D21162, C07D40102, C08K 534

Patent

active

040641023

ABSTRACT:
Compounds of the formula: ##STR1## wherein R is hydrogen or alkyl (C.sub.1 -C.sub.8), R' is hydrogen, hydroxyl or lower alkoxy (C.sub.1 -C.sub.8); R" is alkyl (C.sub.1 -C.sub.20), alkylene (C.sub.2 -C.sub.12), cycloalkyl, wherein the alicyclic ring contains 5- or 6-carbon atoms, cycloalkylene, wherein the alicyclic ring may contain lower alkyl substituents, alkenyl (C.sub.3 -C.sub.20), arylene or aralkylene; n is an integer from 1 to 4, are useful for stabilizing polyolefin polymer against photo and thermal degradation.

REFERENCES:
patent: 591483 (1897-10-01), Merling
patent: 2759942 (1956-08-01), Krapcho
patent: 3534048 (1970-10-01), Murayama et al.
patent: 3684803 (1972-08-01), Kuhnis et al.
patent: 3850877 (1974-11-01), Cook
patent: 3887517 (1975-06-01), Murayama et al.
patent: 3929804 (1975-12-01), Cook
patent: 3959291 (1976-05-01), Cook
Noller, Chemistry of Organic Compounds, 2nd Edition, 1957, p. 254.
Sperber et al., J.A.C.S., vol. 81, 1959, pp. 704-709.

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