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    • 4. 发明授权
    • Nano structured UV absorbers
    • 纳米结构紫外线吸收剂
    • US09150701B2
    • 2015-10-06
    • US12747194
    • 2008-12-12
    • Mara DestroSamanta CimitanCesare LorenzettiDario Lazzari
    • Mara DestroSamanta CimitanCesare LorenzettiDario Lazzari
    • C08K3/22C08K5/3492C08K5/00C08K5/17B82Y30/00C08K5/34C08L21/00
    • C08K3/22B82Y30/00C08K5/34C08K2201/011C08L21/00
    • The present invention relates to an UV absorbing polymer composition comprising effective amounts of (a1) a nanoparticulate oxide selected from oxides of the groups 4 and 12 of the periodic table, wherein the oxide is doped with In, Ga and/or Al, and (b1) a UV stabilizing/absorbing substance comprising a sterically hindered amine and/or a polymeric hydroxyphenyltriazine; or (a2) a nanoparticulate oxide selected from oxides of the groups 4 and 12, and (b2) a UV light stabilizing substance comprising a N-oxygen-substituted sterically hindered amine. Furthermore, the present invention relates to a polymer comprising said composition and the use of said composition as a UV absorber in polymers, particularly in agricultural films or packaging films. Finally, the present invention relates to a process for producing doped nanoparticulate metal oxides.
    • 本发明涉及一种UV吸收聚合物组合物,其包含有效量的(a1)选自元素周期表第4和12族的氧化物的纳米颗粒氧化物,其中该氧化物掺杂有In,Ga和/或Al,和( b1)包含空间位阻胺和/或聚合羟基苯基三嗪的UV稳定/吸收物质; 或(a2)选自组4和12的氧化物的纳米颗粒氧化物,和(b2)包含N-氧取代的空间位阻胺的UV光稳定物质。 此外,本发明涉及包含所述组合物的聚合物和所述组合物作为聚合物中的UV吸收剂的用途,特别是在农业膜或包装膜中。 最后,本发明涉及一种制备掺杂的纳米颗粒金属氧化物的方法。