Ultraviolet light absorbing agents and compositions and articles

Details Ultraviolet light absorbing agents and compositions and articles Ultraviolet light absorbing agents and compositions and articles

1982-09-23

1983-12-06

Morris, Theodore

Stock material or miscellaneous articles

Composite

Of polycarbonate

10628712, 428451, 428483, 4284763, 428520, B32B 2718, B32B 2730, C09K 300

Patent

active

044194056

ABSTRACT:
There are provided ultraviolet light absorbing agents of the following general formula ##STR1##
wherein: ##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: 4362895 (1982-12-01), Gupta
patent: 4369228 (1983-01-01), Ashby
patent: 4374674 (1983-02-01), Ashby et al.
Kaesz et al., J. Amer. Chem. Soc., 1957, pp. 1433-1435.

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