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    • 2. 发明授权
    • Organically modified silica and use thereof
    • 有机改性二氧化硅及其用途
    • US08372999B2
    • 2013-02-12
    • US13360238
    • 2012-01-27
    • Brian T. HollandJi CuiTimothy S. Keizer
    • Brian T. HollandJi CuiTimothy S. Keizer
    • C07F7/10
    • C07F7/1804C07B2200/11Y10T428/2982
    • Disclosed and claimed is a novel protective coating for metal surfaces. The protective coating includes one part by weight of the organosilane-modified silica nanoparticles made by the disclosed process and further includes from 0.3 to 3 parts by weight of the reaction product of (1) a compound comprising a polyamine in which a plurality of amine groups are bonded to at least one radical selected from the group consisting of hydrocarbon and hydrocarbon ether groups that separate nitrogen atoms of said amine groups by at least four intermediate atoms in a chain, and (2) a silane which carries a plurality of silicon-bonded hydrolyzable groups and a silicon-bonded organic group that is covalently reactive to and which bonds with said amine group, said silane also comprising hydrolyzable groups, to provide a reaction product molecule which comprises an average of 2.5 to 3.5 silane groups per molecule.
    • 公开并要求保护的是用于金属表面的新型保护涂层。 保护涂层包括由所公开的方法制备的一份重量的有机硅烷改性二氧化硅纳米颗粒,并且还包括0.3至3重量份的(1)包含多胺的化合物的反应产物,其中多个胺基 与至少一种选自烃和烃醚基团的基团键合,所述烃基和烃醚基团将所述胺基团的氮原子分成链中至少四个中间原子,和(2)硅烷,其携带多个硅键合 可水解基团和与所述胺基共价反应并与其结合的硅键合的有机基团,所述硅烷还包含可水解基团,以提供包含平均每分子2.5至3.5个硅烷基团的反应产物分子。
    • 3. 发明授权
    • Organically modifid silica and use thereof
    • 有机二氧化硅及其用途
    • US08106229B2
    • 2012-01-31
    • US11443515
    • 2006-05-30
    • Brian T. HollandJi CuiTimothy S. Keizer
    • Brian T. HollandJi CuiTimothy S. Keizer
    • C07F7/10
    • C07F7/1804C07B2200/11Y10T428/2982
    • Organosilane-modified nanoparticles of silica, having a particle size of no more than 1 micron, in which the organosilane resides throughout the entire volume of the nanoparticles and not just at the surfaces of the nanoparticle. The nanoparticles may be in a colloidal solution. They may be prepared by hydrolyzing an alkali silicate under acidic conditions to obtain a silicic acid dispersion, followed by adding an organosilane having hydroxyl and/or hydrolyzable groups to the dispersion under acid conditions; and then raising the pH of the dispersion to at least eight to form the nanoparticles. They may be used in an effective paint primer/protective coating formulation.
    • 有机硅烷改性的二氧化硅纳米颗粒,其粒径不超过1微米,其中有机硅烷位于纳米颗粒的整个体积内,而不仅仅在纳米颗粒的表面。 纳米颗粒可以是胶体溶液。 它们可以通过在酸性条件下水解碱金属硅酸盐来获得硅酸分散体,然后在酸性条件下向分散体中加入具有羟基和/或可水解基团的有机硅烷来制备; 然后将分散体的pH提高至至少8以形成纳米颗粒。 它们可以用于有效的漆底漆/保护涂层制剂中。
    • 4. 发明申请
    • ORGANICALLY MODIFIED SILICA AND USE THEREOF
    • 有机改性二氧化硅及其用途
    • US20120125233A1
    • 2012-05-24
    • US13360238
    • 2012-01-27
    • Brian T. HollandJi CuiTimothy S. Keizer
    • Brian T. HollandJi CuiTimothy S. Keizer
    • C09D7/12B32B5/16B82Y99/00
    • C07F7/1804C07B2200/11Y10T428/2982
    • Disclosed and claimed is a novel protective coating for metal surfaces. The protective coating includes one part by weight of the organosilane-modified silica nanoparticles made by the disclosed process and further includes from 0.3 to 3 parts by weight of the reaction product of (1) a compound comprising a polyamine in which a plurality of amine groups are bonded to at least one radical selected from the group consisting of hydrocarbon and hydrocarbon ether groups that separate nitrogen atoms of said amine groups by at least four intermediate atoms in a chain, and (2) a silane which carries a plurality of silicon-bonded hydrolyzable groups and a silicon-bonded organic group that is covalently reactive to and which bonds with said amine group, said silane also comprising hydrolyzable groups, to provide a reaction product molecule which comprises an average of 2.5 to 3.5 silane groups per molecule.
    • 公开并要求保护的是用于金属表面的新型保护涂层。 保护涂层包括由所公开的方法制备的一份重量的有机硅烷改性二氧化硅纳米颗粒,并且还包括0.3至3重量份的(1)包含多胺的化合物的反应产物,其中多个胺基 与至少一种选自烃和烃醚基团的基团键合,所述烃基和烃醚基团将所述胺基团的氮原子分成链中至少四个中间原子,和(2)硅烷,其携带多个硅键合 可水解基团和与所述胺基共价反应并与其结合的硅键合的有机基团,所述硅烷还包含可水解基团,以提供包含平均每分子2.5至3.5个硅烷基团的反应产物分子。