C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 11/02 (2006.01) C08J 5/18 (2006.01) C08L 67/03 (2006.01) C08L 69/00 (2006.01) C09B 69/10 (2006.01) C09K 11/06 (2006.01) C09K 15/00 (2006.01) G02B 5/124 (2006.01) G02B 5/128 (2006.01) C08G 63/91 (2006.01)
Patent
CA 2428292
A fluorescent article is disclosed comprising a polymer matrix comprising a polymer having in its backbone repeating units of a U.V. light absorbing moiety, or a moiety capable of being transformed by photo-Fries rearrangement into a U.V. light absorbing moiety, the matrix further comprising a fluorescent dye. The matrix afford surprisingly improved fluorescence protection as compared to prior fluorescent articles having only U.V. light absorbing additives.
L'invention concerne un article fluorescent comprenant une matrice polymère contenant un polymère présentant dans son squelette des motifs répétitifs d'un fragment anti-UV ou d'un fragment pouvant être transformé par transposition photochimique de Fries en un fragment anti-UV. La matrice comprend également un colorant fluorescent. La matrice décrite dans cette invention présente une protection de la fluorescence considérablement améliorée par comparaison avec les articles fluorescents de l'état de la technique, lesquels ne comprenaient que des additifs anti-UV.
Buoni Drew J.
Dockus Kimberly A.
Wei Guang-Xue
Avery Dennison Corporation
Ridout & Maybee Llp
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