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    • 23. 发明授权
    • Hydrophobic self-cleaning coating compositions
    • 疏水性自洁涂料组合物
    • US08147607B2
    • 2012-04-03
    • US12605613
    • 2009-10-26
    • Richard J. BaumgartSubbareddy Kanagasabapathy
    • Richard J. BaumgartSubbareddy Kanagasabapathy
    • C09D1/00C09D5/00
    • C09D5/008C09D1/00
    • Coating compositions of the present invention comprise hydrophobic particles, an alcohol, a solvent, and an effective amount of water such that coatings formed therefrom are hydrophobic. The hydrophobic particles may comprise a metal oxide, such as silica (SiO2), alumina (Al2O3), titania (TiO2), or zinc oxide (ZnO), or combinations thereof. In one embodiment, the hydrophobic particles comprise fumed silica. The amount of hydrophobic particles is in the range of from about 0.3 wt. % to about 2 wt. %. In one embodiment, the effective amount of water is at least about 0.066 wt. %. The ratio of the amount of the solvent to the amount of the alcohol is slightly less than 100, and, in another embodiment, is at least about 50 to 50. A surface treated with the composition is characterized by a water contact angle of 115° or more, and more particularly 135° or more.
    • 本发明的涂料组合物包含疏水性颗粒,醇,溶剂和有效量的水,使得由其形成的涂层是疏水性的。 疏水性颗粒可以包括金属氧化物,例如二氧化硅(SiO 2),氧化铝(Al 2 O 3),二氧化钛(TiO 2)或氧化锌(ZnO)或其组合。 在一个实施方案中,疏水性颗粒包含热解二氧化硅。 疏水性颗粒的量在约0.3wt。 %至约2wt。 %。 在一个实施方案中,水的有效量为至少约0.066wt。 %。 溶剂的量与醇的量的比例略小于100,在另一个实施方案中为至少约50-50。用组合物处理的表面的特征在于水接触角为115° 以上,更特别是135°以上。
    • 24. 发明申请
    • HYDROPHOBIC SELF-CLEANING COATING COMPOSITIONS
    • HYDROPHOBIC自清洁涂料组合物
    • US20110094417A1
    • 2011-04-28
    • US12605613
    • 2009-10-26
    • Richard J. BaumgartSubbareddy Kanagasabapathy
    • Richard J. BaumgartSubbareddy Kanagasabapathy
    • C09D5/38
    • C09D5/008C09D1/00
    • Coating compositions of the present invention comprise hydrophobic particles, an alcohol, a solvent, and an effective amount of water such that coatings formed therefrom are hydrophobic. The hydrophobic particles may comprise a metal oxide, such as silica (SiO2), alumina (Al2O3), titania (TiO2), or zinc oxide (ZnO), or combinations thereof. In one embodiment, the hydrophobic particles comprise fumed silica. The amount of hydrophobic particles is in the range of from about 0.3 wt. % to about 2 wt. %. In one embodiment, the effective amount of water is at least about 0.066 wt. %. The ratio of the amount of the solvent to the amount of the alcohol is slightly less than 100, and, in another embodiment, is at least about 50 to 50. A surface treated with the composition is characterized by a water contact angle of 115° or more, and more particularly 135° or more.
    • 本发明的涂料组合物包含疏水性颗粒,醇,溶剂和有效量的水,使得由其形成的涂层是疏水性的。 疏水性颗粒可以包括金属氧化物,例如二氧化硅(SiO 2),氧化铝(Al 2 O 3),二氧化钛(TiO 2)或氧化锌(ZnO)或其组合。 在一个实施方案中,疏水性颗粒包含热解二氧化硅。 疏水性颗粒的量在约0.3wt。 %至约2wt。 %。 在一个实施方案中,水的有效量为至少约0.066wt。 %。 溶剂的量与醇的量的比例略小于100,在另一个实施方案中为至少约50-50。用组合物处理的表面的特征在于水接触角为115° 以上,更特别是135°以上。