| 摘要 |
A photographic element comprising a light sensitive portion and an ultraviolet absorbing polymer comprising repeating units of a 2'-hydroxphenyl benzotriazole with a 5- or 6-substituent selected from halogen, cyano, carboxy or a sulfonyl, and a 4'-alkoxy group in which the alkylene portion of the alkoxy is linked, in sequence through a first optional bivalent linking group, then an oxygen, sulfur or amino group, then a second optional bivalent linking group, to the polymer chain, provided that the 3'-position is unsubsituted and the 4'-substituent does not have any -NH-, -OH or -SH substituents.
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