Ultraviolet light absorbing agents and compositions and articles

Compositions: coating or plastic – Coating or plastic compositions – Silicon containing other than solely as silicon dioxide or...

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10628714, 556436, C09K 300

Patent

active

043746748

ABSTRACT:
There are provided ultraviolet light absorbing agents of the following general formula ##STR1## wherein: X is ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;

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patent: 4051161 (1977-09-01), Proskow
patent: 4122233 (1978-10-01), Proskow
patent: 4177315 (1979-12-01), Ubersax
"J. Chem. Soc.", H. D. Kaesze, pp. 1433-1435, 1957.

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