公开(公告)号：US20100172815A1

公开(公告)日：2010-07-08

申请号：US12601523

申请日：2007-12-04

申请人： Ho Sung Park ,  Sharad D. Bhagat ,  Jong-Hyun Lim ,  Young-Chul Joung ,  Jong-Chul Park ,  Seung-Yong Jee

发明人： Ho Sung Park ,  Sharad D. Bhagat ,  Jong-Hyun Lim ,  Young-Chul Joung ,  Jong-Chul Park ,  Seung-Yong Jee

IPC分类号： C01B33/141

CPC分类号： C01B33/1585 ,  C01B33/143

摘要： Disclosed is a method of manufacturing superhydrophobic silica-based powder, including adding a water glass solution, which is not subjected to ion exchange, serving as a precursor, with an organosilane compound having an alkaline pH and an inorganic acid to thus subject the water glass solution to surface modification and gelation, thereby producing hydrogel, immersing the hydrogel in a nonpolar solvent to thus subject the hydrogel to solvent exchange and Na+ removal, and drying the hydrogel, subjected to solvent exchange, at ambient pressure, thereby manufacturing aerogel powder. This invention is very important from an industrial point of view because it involves a very simple process and realizes economic benefits.

摘要翻译： 公开了一种制造超疏水性二氧化硅基粉末的方法，包括将不进行离子交换的水玻璃溶液与具有碱性pH和无机酸的有机硅烷化合物一起添加作为前体，从而使水玻璃 溶液进行表面改性和凝胶化，由此制备水凝胶，将水凝胶浸入非极性溶剂中，从而使水凝胶进行溶剂交换和Na +去除，并在环境压力下干燥进行溶剂交换的水凝胶，从而制备气凝胶粉末。 本发明从工业角度来看是非常重要的，因为它涉及到非常简单的过程并实现经济效益。

公开(公告)号：US20080081014A1

公开(公告)日：2008-04-03

申请号：US11737450

申请日：2007-04-19

申请人： Yong-Soo AHN ,  Jeong-Gu Yeo ,  Moon-Hee Han ,  Churl-Hee Cho ,  Sharad D. Bhagat ,  Yong-Ha Kim ,  Ho-Sung Park

发明人： Yong-Soo AHN ,  Jeong-Gu Yeo ,  Moon-Hee Han ,  Churl-Hee Cho ,  Sharad D. Bhagat ,  Yong-Ha Kim ,  Ho-Sung Park

IPC分类号： C01B33/12

CPC分类号： C01B33/1585 ,  C01B33/158

摘要： Disclosed herein is a rapid preparation process of aerogel. More specifically, the present invention relates to a rapid preparation process of aerogel which enables a considerable reduction in preparation time and preparation costs via simultaneous treatment of solvent exchange and surface-modification of hydrophilic-to-hydrophobic transition.The rapid preparation process comprises mixing a cation exchange resin with sodium silicate (water glass) as a starting material, and removing the sodium ion from the sodium silicate, to subject the sodium silicate to ion exchange; adding a base catalyst and an organosilane compound to the sodium silicate to subject the sodium silicate to gelation; aging the gellized silica gel at room temperature for 2 to 4 hours to discharge water from the silica gel and to modify the surface of the silica gel into hydrophobicity; and drying the hydrophobic silica gel at atmospheric pressure for 18 to 27 hours.

摘要翻译： 本文公开了气凝胶的快速制备方法。 更具体地说，本发明涉及一种气凝胶的快速制备方法，其通过同时处理亲水 - 疏水过渡的溶剂交换和表面改性，能够显着降低制备时间和制备成本。 快速制备方法包括将阳离子交换树脂与硅酸钠（水玻璃）作为起始原料混合，并从硅酸钠中除去钠离子，使硅酸钠进行离子交换; 向硅酸钠中加入碱催化剂和有机硅烷化合物以使硅酸钠发生凝胶化; 将胶凝硅胶在室温下老化2至4小时，以从硅胶中排出水，并将硅胶表面改性为疏水性; 并在大气压下干燥疏水性硅胶18至27小时。

公开(公告)号：US20170096531A1

公开(公告)日：2017-04-06

申请号：US15282891

申请日：2016-09-30

申请人： Sharad D. Bhagat

发明人： Sharad D. Bhagat

IPC分类号： C08G75/024 ,  C08G75/0209 ,  G02B1/04 ,  C08G75/045

CPC分类号： C08G75/024 ,  C08G75/0209 ,  C08G75/045 ,  G02B1/041

摘要： In some cases, fabricating a high refractive index polymer composite may include combining a thiol monomer and an ene monomer to yield a composite mixture, heating the composite mixture to yield a homogenous composite mixture, and curing the homogeneous composite mixture to yield a polymer composite, wherein the ene monomer comprises zirconium oxo (meth)acrylate clusters. The refractive index of the high refractive index polymer composite may be at least 1.70. In certain cases, fabricating a high reactive index polymer composite includes combining a vinyl (ene) monomer, a thiol monomer, and zirconium oxo (meth)acrylate clusters to yield a composite mixture, heating the composite mixture to yield a homogenous composite mixture, and curing the homogeneous composite mixture to yield a polymer composite. The refractive index of the high refractive index polymer composite may be at least 1.75.

公开(公告)号：US20100233061A1

公开(公告)日：2010-09-16

申请号：US12749266

申请日：2010-03-29

申请人： Ho Sung Park ,  Sharad D. Bhagat ,  Jong-Hyun Lim ,  Young-Chul Joung ,  Seung-Yong Jee ,  Jong-Chul Park ,  In-Soon Jung

发明人： Ho Sung Park ,  Sharad D. Bhagat ,  Jong-Hyun Lim ,  Young-Chul Joung ,  Seung-Yong Jee ,  Jong-Chul Park ,  In-Soon Jung

IPC分类号： C01B33/152

CPC分类号： C01B33/166

摘要： Disclosed herein is a method of fabricating superhydrophobic silica-based powder, comprising: forming a hydrogel by adding an organosilane compound having alkaline pH and an inorganic acid to a non-ion-exchanged water glass solution, which is a precursor, to form a mixed solution and then surface-modifying and gelating the mixed solution; dipping the hydrogel into a nonpolar solvent to solvent-exchange the hydrogel and remove sodium ions (Na+) therefrom; and drying the solvent-exchanged hydrogel through a fluidized bed drying method under normal pressure or reduced pressure to fabricate aerogel powder. According to the method of fabricating a superhydrophobic silica-based powder of the present invention, the process thereof is very simple and economical. Therefore, the present invention is expected to be industrially important.

摘要翻译： 本文公开了一种制造超疏水性二氧化硅基粉末的方法，其包括：通过向作为前体的非离子交换水玻璃溶液中加入具有碱性pH和无机酸的有机硅烷化合物形成水凝胶，以形成混合 溶液，然后对混合溶液进行表面改性和凝胶化; 将水凝胶浸入非极性溶剂中以溶剂交换水凝胶并从其中除去钠离子（Na +）; 并在常压或减压下通过流化床干燥方法干燥溶剂交换的水凝胶以制备气凝胶粉末。 根据本发明的超疏水性二氧化硅系粉末的制造方法，其工艺非常简单且经济。 因此，本发明预期在工业上是重要的。