Ultraviolet light absorbing agents and compositions and articles

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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556416, 556442, 428412, 10628713, C07F 718, C07F 709

Patent

active

042788048

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: 3986997 (1976-10-01), Clark
patent: 4042613 (1977-08-01), Takamizawa et al.
patent: 4051161 (1977-09-01), Proskow
patent: 4177315 (1979-12-01), Ubersax
"J. Chem. Soc.", pp. 1433-1435, 1957.

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