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Method for preventing an organic colored substance from fading by light, stabilized colored compositions and photographic elements and materials
Method for preventing an organic colored substance from fading by light, stabilized colored compositions and photographic elements and materials
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机译:防止有机有色物质被光褪色的方法,稳定的有色组合物以及照相元件和材料
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摘要
A method for preventing organic colored substance from fading by light comprising, adding to said organic colored substance a compound of the formula (I);wherein R is a substituent and n is an integer from 0 to 6, provided that when n is 2 or higher. the R's may be either the same or different from each other and they may be combined with each other to form a ring. Stabilized colored compositions and photographic elements and materials containing the compounds of formula (I).
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