知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

85 条记录 (耗时 0.027 秒)

    Process for preparation of mesoporous silica and organosilica materials
    3.
    发明授权
    Process for preparation of mesoporous silica and organosilica materials 有权
    介孔二氧化硅和有机硅材料的制备工艺

    公开(公告)号：US09296618B2

    公开(公告)日：2016-03-29

    申请号：US14115663

    申请日：2012-05-11

    申请人： Mark John MacLachlan ,  Kevin Eric Shopsowitz ,  Wadood Yasser Hamad

    发明人： Mark John MacLachlan ,  Kevin Eric Shopsowitz ,  Wadood Yasser Hamad

    IPC分类号： B01D53/56 ,  C01B33/12 ,  B01J20/10 ,  B01J20/28 ,  B01J20/283 ,  C09K19/02 ,  C09K19/38 ,  C09K19/52 ,  B01J20/24 ,  B01J20/30

    CPC分类号： C01B33/126 ,  B01J20/10 ,  B01J20/103 ,  B01J20/24 ,  B01J20/28083 ,  B01J20/283 ,  B01J20/305 ,  B01J20/3078 ,  C01B33/124 ,  C01P2006/16 ,  C09K19/02 ,  C09K19/3819 ,  C09K19/52 ,  C09K2019/521

    摘要： In this invention, we disclose a method as well as silica and/or organosilica mesoporous materials obtained by templating using nanocrystalline cellulose and removal of the latter using acidic conditions. The resultant mesoporous silica materials are characterized by having high surface area with tunable iridescence resulting from the long-range chiral nematic organization. This invention is an improvement over the formation of composite materials formed with nanocrystalline cellulose (NCC) and silica, where the calcination of the materials led to removal of the cellulose and formation of a mesoporous silica material. Characteristically, the removal of the NCC template using acidic conditions differentiates the silica materials thus obtained in two ways: (1) It does not lead to as significant contraction of the materials as from calcination thereby giving access to materials with larger mesopores; and (2) it allows the formation of mesoporous chiral nematic compositions that include heat-sensitive components. This approach may be used to prepare the first example of a mesoporous organosilica material with a chiral nematic pore structure. Examples of possible applications of this material include optical filters, adsorbents, chiral stationary phases for chromatography, sensors, composite materials, membranes, and templates for creating other chiral materials.

    摘要翻译： 在本发明中，我们公开了一种方法以及通过使用纳米晶纤维素模板化和通过酸性条件去除后者而获得的二氧化硅和/或有机二氧化硅介孔材料。 所得的介孔二氧化硅材料的特征在于具有高的表面积，并且由长程手性向列组织引起可调谐的虹彩。 本发明是对由纳米晶体纤维素（NCC）和二氧化硅形成的复合材料的形成的改进，其中材料的煅烧导致去除纤维素和形成介孔二氧化硅材料。 特征上，使用酸性条件去除NCC模板可以通过两种方式区分由此获得的二氧化硅材料：（1）它不会导致材料与煅烧显着的收缩，从而进入具有较大介孔的材料; 和（2）它允许形成包括热敏组分的介孔手性向列组合物。 该方法可用于制备具有手性向列孔结构的介孔有机硅材料的第一实例。 这种材料的可能应用的实例包括光学过滤器，吸附剂，用于色谱的手性固定相，传感器，复合材料，膜和用于产生其它手性材料的模板。

    Porous material having hierarchical porous structure and preparation method thereof
    5.
    发明授权
    Porous material having hierarchical porous structure and preparation method thereof 有权
    具有分层多孔结构的多孔材料及其制备方法

    公开(公告)号：US08318191B2

    公开(公告)日：2012-11-27

    申请号：US12253054

    申请日：2008-10-16

    申请人： Huisuk Yun ,  Seung-Eon Kim ,  Yongtaek Hyung

    发明人： Huisuk Yun ,  Seung-Eon Kim ,  Yongtaek Hyung

    IPC分类号： A61F2/00 ,  A61B17/08 ,  C01B25/10

    CPC分类号： A61F2/28 ,  A61F2002/2835 ,  A61F2002/30011 ,  A61F2002/30242 ,  A61F2002/3092 ,  A61F2230/0071 ,  A61F2250/0023 ,  A61F2310/00179 ,  A61L27/10 ,  A61L27/56 ,  A61L2430/02 ,  C01B33/124 ,  C01B33/18 ,  C01G23/047 ,  C01G25/02 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/22

    摘要： Disclosed are porous ceramic balls with a hierarchical porous structure ranging in size from nanometers to micrometers, and preparation methods thereof. Self-assembly polymers and sol-gel reactions are used to prepare porous ceramic balls in which pores ranging in size from ones of nanometers to tens of micrometers are hierarchically interconnected to one another. This hierarchical porous structure ensures high specific surface areas and porosities for the porous ceramic balls. Further, the size and distribution of the pores can be simply controlled with hydrophobic solvent and reaction time. The pore formation through polymer self-assembly and sol-gel reactions can be applied to ceramic and transition metals. Porous structures based on bioceramic materials, such as bioactive glass, allow the formation of apatite therein and thus can be used as biomaterials of bioengineering, including bone fillers, bone reconstruction materials, bone scaffolds, etc.

    摘要翻译： 公开了具有尺寸从纳米到微米的分级多孔结构的多孔陶瓷球及其制备方法。 自组装聚合物和溶胶 - 凝胶反应用于制备多孔陶瓷球，其中尺寸从纳米到数十微米的孔彼此分层互连。 这种层状多孔结构确保了多孔陶瓷球的高比表面积和孔隙率。 此外，孔的尺寸和分布可以简单地用疏水溶剂和反应时间控制。 通过聚合物自组装和溶胶 - 凝胶反应的孔形成可以应用于陶瓷和过渡金属。 基于生物陶瓷材料（例如生物活性玻璃）的多孔结构允许在其中形成磷灰石，因此可以用作生物工程的生物材料，包括骨填料，骨重建材料，骨支架等。

    METHOD FOR SYNTHESIZING ONE-DIMENSIONAL HELICAL NANOPOROUS STRUCTURES AND METHOD FOR SYNTHESIZING GLYCINE-DERIVED SURFACTANT FOR SYNTHESIZING HELICAL NANOPOROUS STRUCTURES
    6.
    发明申请
    METHOD FOR SYNTHESIZING ONE-DIMENSIONAL HELICAL NANOPOROUS STRUCTURES AND METHOD FOR SYNTHESIZING GLYCINE-DERIVED SURFACTANT FOR SYNTHESIZING HELICAL NANOPOROUS STRUCTURES 有权
    用于合成一维螺旋纳米结构的方法和用于合成甘氨酸衍生的表面活性剂以合成螺旋形纳米结构的方法

    公开(公告)号：US20110039682A1

    公开(公告)日：2011-02-17

    申请号：US12921457

    申请日：2009-04-10

    申请人： Sang Cheol Han ,  Yang Kim ,  Chung Kwon Park

    发明人： Sang Cheol Han ,  Yang Kim ,  Chung Kwon Park

    IPC分类号： C04B38/00 ,  C07C237/04

    CPC分类号： C07C237/06 ,  C01B33/124 ,  C01B37/02

    摘要： Disclosed herein are a method for synthesizing one-dimensional helical mesoporous structure, in which a self-assembled structure of a glycine-derived surfactant is used as a template at room temperature to synthesize the one-dimensional helical mesoporous silica structures having a uniform pore size and a method for synthesizing a glycine-derived surfactant for synthesizing the helical nanoporous structures, in which relatively expensive surfactant can be easily recovered using an organic solvent and reused, which provides economical and environment friendly effects and the glycine-derived surfactant is synthesized by homogeneously heating a reaction product of glycine and phthalic anhydride by dielectric heating with irradiation of microwave, whereby it is possible to realize high yield of the glycine-derived surfactant, shortened synthesis time and increase in energy efficiency, leading to improvement in productivity and reduction in production cost.

    摘要翻译： 本文公开了一种用于合成一维螺旋介孔结构的方法，其中在室温下将甘氨酸衍生的表面活性剂的自组装结构用作模板以合成具有均匀孔径的一维螺旋介孔二氧化硅结构 以及用于合成用于合成螺旋纳米孔结构的甘氨酸衍生的表面活性剂的方法，其中相对昂贵的表面活性剂可以使用有机溶剂容易地回收并重复使用，这提供了经济和环境友好的作用，并且甘氨酸衍生的表面活性剂通过均匀合成 通过微波照射的电介质加热加热甘氨酸和邻苯二甲酸酐的反应产物，从而可以实现甘氨酸衍生的表面活性剂的高产率，缩短合成时间和提高能量效率，从而提高生产率和降低生产 成本。

    Closed-cell foam silica
    8.
    发明申请
    Closed-cell foam silica 有权
    闭孔泡沫二氧化硅

    公开(公告)号：US20080286555A1

    公开(公告)日：2008-11-20

    申请号：US11798976

    申请日：2007-05-18

    申请人： Alan Huston ,  Brian I. Justus

    发明人： Alan Huston ,  Brian I. Justus

    IPC分类号： C03B19/08 ,  B32B3/26 ,  C01B33/12

    CPC分类号： C03B19/08 ,  C01B33/124 ,  C03C11/007 ,  Y10T428/249969 ,  Y10T428/249977

    摘要： A method of making a closed-cell silica foam glass is provided which can include diffusing a substance into a porous glass substrate to form an impregnated substrate, sealing the impregnated glass substrate and heating to a first temperature, wherein the pressure is greater than one atmosphere, heating the container to a second temperature, wherein the second temperature is higher than first temperature, removing the solid glass, non-porous substrate, and heating the solid glass, non-porous substrate to a third temperature to soften the solid glass, non-porous substrate and thereby expand the solid glass, non-porous substrate. A closed-cell silica foam product is provided which can have a closed-cell structure and high temperature insulating property.

    摘要翻译： 提供一种制造闭孔二氧化硅泡沫玻璃的方法，其可以包括将物质扩散到多孔玻璃基板中以形成浸渍的基材，密封浸渍的玻璃基板并加热至第一温度，其中压力大于一个大气压 将容器加热至第二温度，其中第二温度高于第一温度，除去固体玻璃，无孔基材，并将固体玻璃，无孔基材加热至第三温度以软化固体玻璃，非 从而膨胀固体玻璃，无孔基材。 提供了可以具有闭孔结构和高温绝缘性的闭孔硅石泡沫产品。