C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 11/06 (2006.01) B32B 7/12 (2006.01) B32B 27/18 (2006.01) C08K 5/00 (2006.01) C08K 5/3492 (2006.01) C09J 11/08 (2006.01)
Patent
CA 2371607
Adhesive compositions are rendered stable against degradation caused by ultraviolet light through the incorporation of a highly soluble, high extinction, photostable hydroxy-phenyl-s-triazine UV absorber or mixtures of s- triazine UV absorbers. An example of such compounds is 2,4-bis(2,4- dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy*-2-hydroxypropyloxy)-5-.alpha.- cumylphenyl]-s-triazine (*denotes a mixture of octyloxy, nonyloxy and decyloxy groups). Such compounds exhibit high extinction, excellent photostability and are highly soluble in adhesive formulations. The laminated articles derived from these compositions include, for example, solar control films, films and glazings, UV absorbing glasses and glass coatings, windscreens, retroreflective sheetings and signs, solar reflectors, optical films and the like.
L'invention concerne des compositions adhésives rendues stables face aux dégradations provoquées par la lumière ultraviolette suite à l'incorporation d'un absorbeur UV hydroxy-phényl-s-triazine photostable, très soluble, à extinction élevée, ou de mélanges d'absorbeurs UV s-triazine. Un exemple de tels composés est 2,4-bis(2,4-diméthylphényl)-6-[2-hydroxy-4-(3-nonyloxy*-2-hydroxypropyloxy)-5-.alpha.-cumylphényl]-s-triazine (*indiquant un mélange de groupes octyloxy, nonyloxy et decyloxy). Ces composés affichent une extinction élevée, une excellente photostabilité, et sont très solubles dans des préparations adhésives. Les articles laminés dérivés de ces compositions englobent, par exemple, des films de régulation solaires, des films et des glaçages, des verres absorbeurs UV et des revêtements en verre, des pare-brise, des signes et revêtements rétroréflecteurs, des réflecteurs solaires, des films optiques et similaire.
Hayoz Pascal
Iyengar Revathi
Ravichandran Ramanathan
Renz Walter
Suhadolnik Joseph
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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