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    • 9. 发明公开
    • 산화 아연 나노입자
    • 氧化锌纳米粒子
    • KR1020080072065A
    • 2008-08-05
    • KR1020087015281
    • 2006-10-26
    • 메르크 파텐트 게엠베하
    • 코흐마티아스욘슈커게르하르트
    • B82B3/00B82Y40/00C01G9/02
    • C01G9/02B82Y30/00C01P2004/64C08K3/22C08K9/02C09C1/043Y10T428/256Y10T428/2993
    • The invention relates to a method for producing zinc oxide nanoparticles having an average particle size in the range of from 3 to 50 nm. Said method is characterized by reacting in step a) one or more precursors for the nanoparticles in an alcohol to give the nanoparticles, b) terminating, once the absorption edge has achieved the desired value in the UV/VIS specter of the reaction solution, growth of the nanoparticles by adding at least one modifier which is a precursor for silica, optionally c) modifying the silica coat by adding at least one additional surface-modifying agent selected from the group comprising organofunctional silanes, quaternary ammonium compounds, phosphonates, phosphonium and sulfonoium compounds or mixtures thereof, and optionally d) removing the alcohol from step a) and replacing it by another organic solvent. The invention also relates to the nanoparticles so obtained and to their use for UV protection in polymers.
    • 本发明涉及一种平均粒度在3〜50nm范围内的氧化锌纳米粒子的制造方法。 所述方法的特征在于在步骤a)中将一种或多种用于纳米颗粒的前体在醇中反应以产生纳米颗粒,b)一旦吸收边缘在反应溶液的UV / VIS幽灵中达到期望值,则终止,生长 通过添加至少一种作为二氧化硅前体的改性剂,任选地c)通过加入至少一种另外的选自包括有机官能硅烷,季铵化合物,膦酸盐,鏻和磺酸盐的表面改性剂的表面改性剂来改性二氧化硅涂层 化合物或其混合物,以及任选地d)从步骤a)中除去醇并用另一种有机溶剂代替。 本发明还涉及如此获得的纳米颗粒及其在聚合物中的UV保护的用途。
    • 10. 发明公开
    • 나노입자
    • 纳米粒子
    • KR1020080070865A
    • 2008-07-31
    • KR1020087014857
    • 2006-10-26
    • 메르크 파텐트 게엠베하
    • 코흐마티아스욘슈커게르하르트
    • B82B3/00B82Y40/00
    • C09C1/043B82Y30/00C01G9/02C01P2004/64C08K3/22C08K9/08C09D7/62C09D7/67C09D7/70Y10T428/254Y10T428/2927
    • The invention relates to zinc oxide nanoparticles having an average particle size, determined by photon correlation spectroscopy (PCS), in the range of from 3 to 20 nm, the particle surface being modified by at least one copolymer from at least one monomer with hydrophobic groups and at least one monomer with hydrophilic groups, and the nanoparticles being dispersed in an organic solvent. The nanoparticles are is characterized in that they are obtainable by a method whereby in step a) one or more precursors for the nanoparticles are reacted in an alcohol to give the nanoparticles, b) once the absorption edge has achieved the desired value in the UV/VIS specter of the reaction solution, growth of the nanoparticles is terminated by adding at least one copolymer from at least one monomer with hydrophobic groups and at least one monomer with hydrophilic groups, and optionally c) the alcohol from step a) is removed and replaced by another organic solvent. The invention also relates to the particles so obtained and to their use for UV protection in polymers.
    • 本发明涉及通过光子相关光谱法(PCS)测定的平均粒径为3至20nm的氧化锌纳米颗粒,其颗粒表面由至少一种具有疏水基团的单体的共聚物修饰 和至少一种具有亲水基团的单体,并且纳米颗粒分散在有机溶剂中。 纳米颗粒的特征在于它们可通过以下方法获得:在步骤a)中,一种或多种纳米颗粒的前体在醇中反应得到纳米颗粒,b)一旦吸收边缘在UV / VIS眼镜的反应溶液,通过从至少一种具有疏水基团的单体和至少一种具有亲水基团的单体加入至少一种共聚物,并且任选地c)将来自步骤a)的醇除去和替换来终止纳米颗粒的生长 通过另一种有机溶剂。 本发明还涉及如此得到的颗粒及其在聚合物中的UV保护用途。