Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-05-30
1976-03-02
Hoke, V. P.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 458A, C08J 320
Patent
active
039417468
ABSTRACT:
Compounds having the formula ##SPC1##
Wherein R.sup.1 and R.sup.2 are lower alkyl, X and Y are hydrogen or, when taken together, they form a bond or an ether linkage, m is 0 to 3, and n is 0 to 2, are good ultraviolet light stabilizers for synthetic polymers.
REFERENCES:
patent: 2489000 (1949-11-01), Valentino
patent: 3340225 (1967-09-01), Dressler et al.
patent: 3734926 (1973-05-01), Dexter
patent: 3746721 (1973-07-01), Stephen
patent: 3790597 (1974-02-01), Dexter et al.
Ciba-Geigy Corporation
Hoke V. P.
Shust Nestor W.
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