Ultraviolet light absorbing compositions

Details Ultraviolet light absorbing compositions Ultraviolet light absorbing compositions

1981-12-09

1983-06-28

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524188, 524588, 524385, 428412, 556436, C08K 513, C08K 516

Patent

active

043906605

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

REFERENCES:
patent: 3708225 (1973-01-01), Misch et al.
patent: 3976497 (1976-08-01), Clark
patent: 3986997 (1976-10-01), Clark
patent: 4051161 (1977-09-01), Proskow
patent: 4177315 (1979-12-01), Ubersax
patent: 4188451 (1980-02-01), Humphrey, Jr.
patent: 4278804 (1981-07-01), Ashby et al.

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