Ultraviolet light absorbers of 2-phenylbenzotriazole type

Details Ultraviolet light absorbers of 2-phenylbenzotriazole type Ultraviolet light absorbers of 2-phenylbenzotriazole type

C - Chemistry, Metallurgy

07

D

400/7650, 400/78

C07D 249/20 (2006.01) C08K 5/3475 (2006.01)

Patent

CA 1272729

ABSTRACT OF THE DISCLOSURE Ultraviolet light absorbers of the present invention comprising a special type of 2-phenylbenzotriazole derivatives having superior characteristics regarding heat resistance and ability to absorb ultraviolet light beams. The ultraviolet light absorbers are of the formula Image

500695

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