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1. 发明授权

US06232432B1 Process for the preparation of polycarbonates 有权
标题翻译：聚碳酸酯的制备方法
公开(公告)号：US06232432B1
公开(公告)日：2001-05-15
申请号：US09605394
申请日：2000-06-29
申请人： Kil-Yeong Choi , Jae Heung Lee , Sung-Goo Lee , Sang Hyun Park , Young Chan Ko , Il Seok Choi , Kwang Soo Yoon
发明人： Kil-Yeong Choi , Jae Heung Lee , Sung-Goo Lee , Sang Hyun Park , Young Chan Ko , Il Seok Choi , Kwang Soo Yoon
IPC分类号： C08G6400
CPC分类号： C08G64/307
摘要： The present invention relates to a process for the preparation of polycarbonates, more specifically to a process for the preparation of polycarbonates by a solid polymerization of prepolymers obtained by the polymerization between aromatic dihydroxides and diarylcarbonates, which comprises: a) preparing said prepolymer having a viscosity average molecular weight of 4,000-18,000 g/mole; b) preparing a microporous foam by injecting high-pressure inert gas; and c) preparing polycarbonates by a solid polymerization, which facilitates the removal of phenol, a by-product, and enhances molecular weight of polycarbonates without using any catalyst due to the relatively high polymerization rate.
摘要翻译：本发明涉及一种制备聚碳酸酯的方法，更具体地涉及通过芳香族二氢氧化物和二芳基碳酸酯之间的聚合得到的预聚物的固体聚合制备聚碳酸酯的方法，该方法包括：a）制备所述预聚物的粘度平均分子量为4,000-18,000g / mol; b）通过注入高压惰性气体制备微孔泡沫; 和c）通过固体聚合制备聚碳酸酯，其有助于除去苯酚，副产物，并且由于相对高的聚合速率而不使用任何催化剂，从而提高聚碳酸酯的分子量。

2. 发明授权

US06172127B2 Preparation of polyimide foam 失效
标题翻译：聚酰亚胺泡沫的制备
公开(公告)号：US06172127B2
公开(公告)日：2001-01-09
申请号：US09151735
申请日：1998-09-11
申请人： Kil Yeong Choi , Jae Heung Lee , Sung Goo Lee , Mi Hie Yi , Seung Su Kim
发明人： Kil Yeong Choi , Jae Heung Lee , Sung Goo Lee , Mi Hie Yi , Seung Su Kim
IPC分类号： C08J902
CPC分类号： C08J9/02 , C08G73/1021 , C08G73/1028 , C08J9/28 , C08J2379/08
摘要： The invention herein relates to a process of preparing a novel polyimide foam having superior heat-resistance, flame retardancy, homogeneous size and distribution of cells, and low density, wherein a polyimide precursor in a granular form is prepared by means of using heterocyclic amine as catalyst and then foaming. According to the present invention, the preparing process of a polyimide foam comprises reacting aromatic carboxylic acid or the anhydrides thereof with an excess of aliphatic univalent alcohol to yield an aromatic ester solution. To the aromatic ester solution, divalent amines or the mixture thereof were added in the equivalent amount of said carboxylic acid or the anhydrides thereof in addition to a catalyst and surfactant to yield a polyimide. Then, the precursor in a granular form mixture was imidized while foaming by means of pre-heating and then heating in a microwave oven, after which was cured at a high temperature. Consequently, the present invention has the effect of providing a preparing process for a polyimide foam with superior heat-resistance and heat-insulating property, which can be widely used as substrate in aerospace, submarine, special ship, and high-speed train.
摘要翻译：本发明涉及一种制备具有优异的耐热性，阻燃性，均匀尺寸和细胞分布以及低密度的新型聚酰亚胺泡沫的方法，其中通过使用杂环胺作为颗粒形式制备颗粒形式的聚酰亚胺前体催化剂，然后发泡。根据本发明，聚酰亚胺泡沫的制备方法包括使芳族羧酸或其酸酐与过量的脂肪族单价醇反应，得到芳族酯溶液。除了催化剂和表面活性剂之外，向芳族酯溶液中加入等量的所述羧酸或其酸酐的二价胺或其混合物以产生聚酰亚胺。然后，将颗粒状混合物中的前体通过预热加热发泡，然后在微波炉中加热，然后在高温下固化。因此，本发明具有提供制备方法具有优异的耐热性和隔热性的聚酰亚胺泡沫，可广泛用作航空航天，潜艇，专用船和高速列车的基板。

3. 发明授权

US08316689B2 Quantitative evaluation of scratch-induced damages on polymeric and coating materials 有权
标题翻译：对聚合物和涂层材料的划痕损伤的定量评估
公开(公告)号：US08316689B2
公开(公告)日：2012-11-27
申请号：US12845388
申请日：2010-07-28
申请人： Jong Il Weon , Si Yong Song , Jong Bae Lee , Kil Yeong Choi , Sung Goo Lee , Jae Heung Lee
发明人： Jong Il Weon , Si Yong Song , Jong Bae Lee , Kil Yeong Choi , Sung Goo Lee , Jae Heung Lee
IPC分类号： G01N3/56
CPC分类号： G01N3/46
摘要： Provided is a method for quantitative evaluation of mar- and scratch-induced surface damage on polymeric and coating materials. The method for quantitative evaluation of scratch-induced damage on polymeric and coating materials includes: preparing a test specimen of polymeric and coating materials; inducing a scratch damage on the surface of the test specimen; representing the scratch damage formed on the test specimen as corresponding color coordinates; and calculating a quantitated scratch damage index from a combination of a load applied to the surface of the test specimen and the color coordinates corresponding to the scratch damage.
摘要翻译：提供了一种用于定量评估聚合物和涂层材料上的划痕和划痕表面损伤的方法。用于定量评估聚合物和涂层材料上的划痕损伤的方法包括：制备聚合物和涂层材料的试样; 在试样的表面引起划痕损伤; 代表在试样上形成的划痕损伤作为相应的颜色坐标; 以及从施加到测试样本表面的负载和对应于划痕损伤的颜色坐标的组合计算定量的划痕损伤指数。

4. 发明申请

US20060007251A1 Display apparatus and control method thereof 审中-公开
标题翻译：显示装置及其控制方法
公开(公告)号：US20060007251A1
公开(公告)日：2006-01-12
申请号：US11144755
申请日：2005-06-06
申请人： Soo-ho Park , Hwa-seok Seong , Nam-cho Jo , Sung-goo Lee , Gwon-jin Moon , Chul-ho Son
发明人： Soo-ho Park , Hwa-seok Seong , Nam-cho Jo , Sung-goo Lee , Gwon-jin Moon , Chul-ho Son
IPC分类号： G09G5/10
CPC分类号： G09G3/2059 , G09G3/2022 , G09G3/2051 , G09G3/2077 , G09G3/2803 , G09G2320/0223 , G09G2320/0242 , G09G2320/0261 , G09G2320/0266 , G09G2320/0271 , G09G2320/0285 , G09G2320/103 , G09G2360/16
摘要： A display apparatus processing an image frame divided into a plurality of subfields based on time, includes a motion detector detecting whether an input image is a still picture; a gradation level converter converting a brightness level of the input image into one of the gradation levels among a predetermined gradation level group for a still picture if the motion detector detects no motion in the input image, the gradation level group for the still picture formed with gradation levels having no more than a predetermined reference number of subfields which are different in a state of luminance with respect to the corresponding subfields in adjacent gradation levels. With this configuration, the present invention provides a display apparatus and a control method thereof to prevent brightness represented by gradation levels from being displayed inaccurately due to the load of a display line.
摘要翻译：基于时间处理分割为多个子场的图像帧的显示装置包括检测输入图像是静止图像的运动检测器; 灰度级转换器，如果运动检测器检测到输入图像中没有运动，则将输入图像的亮度级别转换成用于静态图像的预定灰度级组中的灰度级之一，用于形成静态图像的灰度级组灰度等级具有不超过在相邻灰度级别相对于相应子场的亮度状态不同的预定参考数量的子场。利用这种配置，本发明提供了一种显示装置及其控制方法，用于防止由于显示线的负载而不准确地显示由灰度级表示的亮度。

5. 发明申请

US20110239748A1 QUANTITATIVE EVALUATION OF SCRATCH-INDUCED DAMAGES ON POLYMERIC AND COATING MATERIALS 有权
标题翻译：对聚合物和涂料材料的切割诱导性损伤的定量评估
公开(公告)号：US20110239748A1
公开(公告)日：2011-10-06
申请号：US12845388
申请日：2010-07-28
申请人： Jong Il WEON , Si Yong SONG , Jong Bae LEE , Kil Yeong CHOI , Sung Goo LEE , Jae Heung LEE
发明人： Jong Il WEON , Si Yong SONG , Jong Bae LEE , Kil Yeong CHOI , Sung Goo LEE , Jae Heung LEE
IPC分类号： G01N3/48
CPC分类号： G01N3/46
摘要： Provided is a method for quantitative evaluation of mar- and scratch-induced surface damage on polymeric and coating materials. The method for quantitative evaluation of scratch-induced damage on polymeric and coating materials includes: preparing a test specimen of polymeric and coating materials; inducing a scratch damage on the surface of the test specimen; representing the scratch damage formed on the test specimen as corresponding color coordinates; and calculating a quantitated scratch damage index from a combination of a load applied to the surface of the test specimen and the color coordinates corresponding to the scratch damage.
摘要翻译：提供了一种用于定量评估聚合物和涂层材料上的划痕和划痕表面损伤的方法。用于定量评估聚合物和涂层材料上的划痕损伤的方法包括：制备聚合物和涂层材料的试样; 在试样的表面引起划痕损伤; 代表在试样上形成的划痕损伤作为相应的颜色坐标; 以及从施加到测试样本表面的负载和对应于划痕损伤的颜色坐标的组合计算定量的划痕损伤指数。

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