Siloxane nanoparticle coating useful for antireflection

    公开(公告)号:US10088603B2

    公开(公告)日:2018-10-02

    申请号:US15103209

    申请日:2014-12-01

    Abstract: A method of making a coated article is described comprising providing an inorganic substrate and coating the substrate with a coating composition. The coating composition comprises a plurality of siloxane nanoparticles dispersed in an organic solvent. A portion of the nanoparticles comprise the reaction product of a first alkoxy silane compound having a first organofunctional group and a second organofunctional group of a second compound and the reaction between the first and second organofunctional groups form an organic linking group. The method further comprises drying the coating composition and heating the coated substrate to volatilize the organic linking groups thereby forming a porous surface layer on the inorganic substrate. In another embodiment an article is described comprising an inorganic substrate, such as glass, and a porous inorganic (e.g. silica) surface layer having an average pore size of less than 30 nm. Also described are coating compositions and methods of making a nanoparticle coating compositions.

    Multilayer articles including coatings on microfiltration membrane substrates and methods of making same

    公开(公告)号:US10814287B2

    公开(公告)日:2020-10-27

    申请号:US16097854

    申请日:2017-05-05

    Abstract: The present disclosure provides a multilayer article. The multilayer article includes a) a microfiltration membrane substrate; b) a first layer directly attached to the first major surface of the microfiltration membrane substrate; and c) a second layer directly attached to the first layer. The first layer includes a first polymeric binder and acid-sintered interconnected first silica nanoparticles arranged to form a continuous three-dimensional porous network. The second layer includes acid-sintered interconnected second silica nanoparticles arranged to form a continuous three-dimensional porous network. The present disclosure also provides a method for forming a multilayer article. The method includes (a) saturating a microfiltration membrane substrate with a liquid; (b) applying a first aqueous coating formulation to at least a portion of a first major surface of the microfiltration membrane substrate to form a coated substrate; (c) sintering the coated substrate, thereby forming a first layer; (d) applying a second aqueous coating formulation to the first major surface of the first layer to form a twice-coated substrate; and (e) sintering the twice-coated substrate.

    Coatable composition, antistatic composition, antistatic articles, and methods of making the same

    公开(公告)号:US10400109B2

    公开(公告)日:2019-09-03

    申请号:US15026850

    申请日:2013-10-04

    Abstract: A method of making a coatable composition includes: providing a first composition comprising silica nanoparticles dispersed in an aqueous liquid vehicle, wherein the first composition has a pH greater than 6; acidifying the first composition to a pH of less than or equal to 4 using inorganic acid to provide a second composition; and dissolving at least one metal compound in the second composition to form the coatable composition. The silica nanoparticles have a polymodal particle size distribution, wherein the polymodal particle size distribution comprises a first mode having a first particle size in the range of from 8 to 35 nanometers, wherein the polymodal particle size distribution comprises a second mode having a second particle size in the range of from 2 to 20 nanometers, wherein the first particle size is greater than the second particle size. Coatable compositions, antistatic compositions, preparable by the method are also disclosed. Soil-resistant articles including the antistatic compositions are also disclosed.

    SILOXANE NANOPARTICLE COATING USEFUL FOR ANTIREFLECTION
    7.
    发明申请
    SILOXANE NANOPARTICLE COATING USEFUL FOR ANTIREFLECTION 审中-公开
    硅氧烷纳米材料涂料可用于抗反射

    公开(公告)号:US20160306077A1

    公开(公告)日:2016-10-20

    申请号:US15103209

    申请日:2014-12-01

    Abstract: A method of making a coated article is described comprising providing an inorganic substrate and coating the substrate with a coating composition. The coating composition comprises a plurality of siloxane nanoparticles dispersed in an organic solvent. A portion of the nanoparticles comprise the reaction product of a first alkoxy silane compound having a first organofunctional group and a second organofunctional group of a second compound and the reaction between the first and second organofunctional groups form an organic linking group. The method further comprises drying the coating composition and heating the coated substrate to volatilize the organic linking groups thereby forming a porous surface layer on the inorganic substrate. In another embodiment an article is described comprising an inorganic substrate, such as glass, and a porous inorganic (e.g. silica) surface layer having an average pore size of less than 30 nm. Also described are coating compositions and methods of making a nanoparticle coating compositions.

    Abstract translation: 描述了制造涂覆制品的方法,其包括提供无机基材并用涂料组合物涂覆基材。 涂料组合物包含分散在有机溶剂中的多个硅氧烷纳米颗粒。 一部分纳米颗粒包含具有第一有机官能团的第一烷氧基硅烷化合物和第二化合物的第二有机官能团的反应产物,并且第一和第二有机官能团之间的反应形成有机连接基团。 该方法还包括干燥涂料组合物并加热涂覆的基材以挥发有机连接基团,从而在无机基材上形成多孔表面层。 在另一个实施方案中,描述了包含无机底物(例如玻璃)和平均孔径小于30nm的多孔无机(例如二氧化硅)表面层的制品。 还描述了制备纳米颗粒涂料组合物的涂料组合物和方法。

    COATABLE COMPOSITION, SOIL-RESISTANT COMPOSITION, SOIL-RESISTANT ARTICLES, AND METHODS OF MAKING THE SAME
    8.
    发明申请
    COATABLE COMPOSITION, SOIL-RESISTANT COMPOSITION, SOIL-RESISTANT ARTICLES, AND METHODS OF MAKING THE SAME 审中-公开
    耐磨组合物,耐土组合物,耐土壤物质及其制备方法

    公开(公告)号:US20150232673A1

    公开(公告)日:2015-08-20

    申请号:US14428702

    申请日:2013-09-16

    CPC classification number: C09D5/1618 C09D1/00 C09D5/16

    Abstract: A method of making a coatable composition includes: a) providing a initial composition comprising silica nanoparticles dispersed in an aqueous liquid medium, wherein the silica nano articles have a particle size distribution with an average particle size of less than or equal to 100 nanometers, and wherein the silica sol has a pH greater than 6; b) acidifying the initial composition to a pH of less than or equal to 4 using inorganic acid to provide an acidified composition; and c) dissolving at least one metal compound in the acidified composition to provide a coatable composition. Coatable compositions and soil-resistant compositions, preparable by the method, are also disclosed. Soil-resistant articles including the soil-resistant compositions are also disclosed.

    Abstract translation: 制备可涂覆组合物的方法包括:a)提供包含分散在水性液体介质中的二氧化硅纳米颗粒的初始组合物,其中所述二氧化硅纳米制品具有平均粒度小于或等于100纳米的粒度分布,以及 其中所述硅溶胶的pH大于6; b)使用无机酸将初始组合物酸化至pH小于或等于4,以提供酸化组合物; 和c)将至少一种金属化合物溶解在酸化的组合物中以提供可涂覆的组合物。 还公开了可通过该方法制备的可涂敷组合物和抗土组合物。 还公开了包括耐土壤组合物的耐土壤制品。

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