专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US6165546A Spectrally tuned multiple bandpass filters for video displays 失效
标题翻译：频谱调谐多个带通滤波器用于视频显示
公开(公告)号：US6165546A
公开(公告)日：2000-12-26
申请号：US111144
申请日：1998-07-07
申请人： Chia-Chi Teng , Suk Youn Suh , Hyun-Nam Yoon
发明人： Chia-Chi Teng , Suk Youn Suh , Hyun-Nam Yoon
IPC分类号： G02B5/22 , G09F9/00 , H01J5/08 , H01J5/16 , H01J29/88 , H01J29/89 , B05D5/06 , C03C17/00 , G02B1/10
CPC分类号： G02B5/223 , H01J29/898 , H01J2211/44 , H01J2229/8913 , Y10T428/31507 , Y10T428/31565 , Y10T428/31616 , Y10T428/31623 , Y10T428/31725 , Y10T428/31736 , Y10T428/31786
摘要： Disclosed in this invention is an optical filter to enhance the contrast and brightness of images from a color display. The filter comprises suitable dyes and a polymer matrix, applied in a suitable form on the display unit. Such filters have utility in devices based on CRTs, plasmas and the like.
摘要翻译：在本发明中公开了一种用于增强来自彩色显示器的图像的对比度和亮度的滤光器。该过滤器包括合适的染料和聚合物基质，其以合适的形式施加在显示单元上。这种滤波器在基于CRT，等离子体等的装置中具有实用性。

42. 发明授权

US6060212A 193 nm positive-working photoresist composition 失效
标题翻译： 193nm正性光致抗蚀剂组合物
公开(公告)号：US6060212A
公开(公告)日：2000-05-09
申请号：US96036
申请日：1998-06-11
申请人： Iain McCulloch , Anthony J. East , Ming Kang , Richard Keosian , Hyun-Nam Yoon
发明人： Iain McCulloch , Anthony J. East , Ming Kang , Richard Keosian , Hyun-Nam Yoon
IPC分类号： C08G67/04 , G03F7/039 , H01L21/027 , G03C1/492 , C08F20/00
CPC分类号： C08G67/04 , G03F7/039
摘要： A polymer that when used with a suitable photoacid generator (PAG) forms a positive working photoresist. The polymer comprises of a tartaric polyanhydride backbone, an acetal protected 1,2 diol group; and a fused ring acetal group pendant to the backbone. The acetal protected .alpha.-hydroxy anhydride backbone structure, undergoes an efficient photoacid catalyzed cleavage, which gives rise to small molecular weight fragments which are readily dissolved in an aqueous base developer. This high contrast in solubility allows high resolution images to be produced. The fused rings offer etch resistance and can be comprised of either an adamantone or norcamphor ring structure. With the addition of a commercially available photo acid generator, the polymer formulation forms a positive working photoresist that offers high contrast and resolution.
摘要翻译：当与合适的光致酸产生剂（PAG）一起使用时形成正性光致抗蚀剂的聚合物。该聚合物包含酒石酸聚酐主链，缩醛保护的1,2-二醇基团; 和稠环缩醛基团挂在骨架上。缩醛保护的α-羟基酸酐主链结构经历有效的光酸催化裂解，其产生容易溶解在碱性显影剂水溶液中的小分子量片段。这种高对比度的溶解度允许产生高分辨率图像。稠环提供耐蚀刻性，并且可以由金刚烷酮或诺卡辛环结构组成。通过添加市售的光酸产生剂，聚合物配方形成提供高对比度和分辨率的正性光致抗蚀剂。

43. 发明授权

US4581399A Method for the melt processing of thermotropic liquid crystal polymers 失效
标题翻译：热致液晶聚合物的熔融加工方法
公开(公告)号：US4581399A
公开(公告)日：1986-04-08
申请号：US430910
申请日：1982-09-30
申请人： Hyun-Nam Yoon
发明人： Hyun-Nam Yoon
IPC分类号： D01F6/92 , B29B7/00 , B29C47/00 , C08K5/00 , C08K5/17 , C08K5/18 , C08L67/00 , C08L77/00 , C09K19/00 , C09K19/38 , D01F6/84 , D01F6/88
CPC分类号： D01F6/88 , C09K19/22 , C09K19/3809
摘要： An improved method is provided for the melt processing of thermotropic liquid crystal polymers. An improvement in the melt processing (e.g., fiber spinning) of thermotropic liquid crystal polymers is obtained if minor amounts of a low molecular weight liquid crystalline compound are added to the melt. Improvements in spinning temperatures, take-up speed and spinning pressure are observed.
摘要翻译：为热致液晶聚合物的熔融加工提供了一种改进的方法。如果将少量的低分子量液晶化合物加入到熔体中，则获得热致液晶聚合物的熔融加工（例如纤维纺丝）的改进。观察到纺丝温度，卷取速度和纺丝压力的改善。

44. 发明授权

US07208255B2 Powder-coated toner particles and method of making same 失效
标题翻译：粉末涂料调色剂颗粒及其制备方法
公开(公告)号：US07208255B2
公开(公告)日：2007-04-24
申请号：US10830173
申请日：2004-04-22
申请人： Chul-Hwan Kim , Kyung Hee Kim , Eui Joon Choi , Hyun-Nam Yoon
发明人： Chul-Hwan Kim , Kyung Hee Kim , Eui Joon Choi , Hyun-Nam Yoon
IPC分类号： G03G9/093
CPC分类号： G03G9/0819 , G03G9/09 , G03G9/097
摘要： A color toner composition for developing latent electrostatic images includes nanopowder-coated toner particles, the powder-coated toner particles being characterized in that each comprises a core toner particle having a volume average diameter, Dp, and the core toner particles have affixed to their surfaces a plurality of discrete colorant powder particles having a volume average diameter, dp, wherein the ratio of Dp/dp is at least about 5 and the weight fraction of colorant powder particles is at least about 0.01 based on the combined weight of core toner particles and colorant powder particles. Preferably, the weight fraction of colorant powder particles is from about 0.3 to about 3 times the product, (ρp/ρr) (d/r) (1+d/r)2, where ρp is the density of the colorant powder particles, ρr the density of the core resin particles, d, the volumetric mean diameter of the colorant powder particles and r the volumetric mean radius of the toner core resin particles.
摘要翻译：用于显影静电潜像的彩色调色剂组合物包括纳米粉末涂覆的调色剂颗粒，粉末涂覆的调色剂颗粒的特征在于每个包含具有体积平均直径D o P p的核心调色剂颗粒，核心调色剂颗粒已经在其表面上固定了多个具有体积平均直径d P p的分散的着色剂粉末颗粒，其中D p / p 为至少约5，并且着色剂粉末颗粒的重量分数基于核心调色剂颗粒和着色剂粉末颗粒的组合重量为至少约0.01。优选地，着色剂粉末颗粒的重量分数为产物的约0.3至约3倍（d / r）（1 + d / r）2，其中rho 是着色剂粉末颗粒的密度，r核心树脂颗粒的密度d，着色剂粉末颗粒的体积平均直径和调色剂核心树脂颗粒的体积平均半径。

45. 发明授权

US5834122A Spectrally tuned multiple bandpass filters for video displays 失效
公开(公告)号：US5834122A
公开(公告)日：1998-11-10
申请号：US753349
申请日：1996-11-25
申请人： Chia-Chi Teng , Suk Youn Suh , Hyun-Nam Yoon
发明人： Chia-Chi Teng , Suk Youn Suh , Hyun-Nam Yoon
IPC分类号： G02B5/22 , G09F9/00 , H01J5/08 , H01J5/16 , H01J29/88 , H01J29/89 , G02B1/10 , G02B1/11 , G02B5/20
CPC分类号： G02B5/223 , H01J29/898 , H01J2211/44 , H01J2229/8913 , Y10T428/31507 , Y10T428/31565 , Y10T428/31616 , Y10T428/31623 , Y10T428/31725 , Y10T428/31736 , Y10T428/31786
摘要： Disclosed in this invention is an optical filter to enhance the contrast and brightness of images from a color display. The filter comprises suitable dyes and a polymer matrix, applied in a suitable form on the display unit. Such filters have utility in devices based on CRTs, plasmas and the like.

46. 发明授权

US4808332A Acrylic copolymers exhibiting nonlinear optical response 失效
公开(公告)号：US4808332A
公开(公告)日：1989-02-28
申请号：US106301
申请日：1987-10-09
申请人： Ronald N. DeMartino , Hyun-Nam Yoon
发明人： Ronald N. DeMartino , Hyun-Nam Yoon
IPC分类号： C08F220/40 , C08F20/10 , C08F20/36 , C08F26/00 , C08F220/34 , G02F1/35 , G02F1/355 , G02F1/361 , C08F20/70 , C08F261/06 , C09K19/52
CPC分类号： G02F1/3617 , C08F20/36 , C09K19/3852
摘要： This invention provides novel isotropic acrylic copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices.An invention isotropic acrylic copolymer is illustrated by the following structure: ##STR1##

47. 发明授权

US4801670A Acrylic copolymers exhibiting nonlinear optical response 失效
公开(公告)号：US4801670A
公开(公告)日：1989-01-31
申请号：US121302
申请日：1987-11-16
申请人： Ronald N. DeMartino , Hyun-Nam Yoon
发明人： Ronald N. DeMartino , Hyun-Nam Yoon
IPC分类号： C08F220/12 , C08F20/10 , C08F20/22 , C08F220/10 , C08F220/22 , C08F220/34 , C08F220/40 , G02F1/35 , G02F1/355 , G02F1/361 , C08F26/06
CPC分类号： C08F220/34 , G02F1/3617
摘要： This invention provides novel isotropic acrylic copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices.An invention isotropic acrylic copolymer is illustrated by the following structure: ##STR1##

48. 发明授权

US4720424A Electronic component encapsulated with a composition comprising a polymer which is capable of forming an anisotropic melt phase and substantially incapable of further chain growth upon heating 失效
标题翻译：封装有包含能够形成各向异性熔融相并且在加热时基本上不能进一步链增长的聚合物的组合物的电子部件
公开(公告)号：US4720424A
公开(公告)日：1988-01-19
申请号：US872007
申请日：1986-06-09
申请人： Nancy C. Eickman , Charles E. McChesney , Gary E. Williams , Hyun-Nam Yoon
发明人： Nancy C. Eickman , Charles E. McChesney , Gary E. Williams , Hyun-Nam Yoon
IPC分类号： C08G63/60 , C08K3/36 , C08L77/12 , H01B3/42 , H01L23/29 , B32B5/16 , B32B27/06 , B32B27/34 , B32B27/36
CPC分类号： H01L23/293 , C08G63/605 , C08K3/36 , C08L77/12 , H01B3/42 , H01L2924/0002 , Y10T428/239 , Y10T428/25 , Y10T428/259 , Y10T428/31725 , Y10T428/31786
摘要： An improved thermoplastic molding composition is provided which is particularly suited for use in the impervious void-free encapsulation on a relatively expeditious basis of an electronic component wherein the preformed electronic component is positioned in a mold cavity prior to the introduction of the molding composition via injection molding. The molding composition comprises a melt processable thermotropic liquid crystalline polymer which is of a relatively low weight average molecular weight of approximately 4,000 to 25,000 (e.g. approximately 4,000 to 10,000) and which is substantially incapable of further chain growth upon heating. Uniformly dispersed within the liquid crystalline polymer is approximately 40 to 80 percent by weight (e.g. approximately 50 to 75 percent by weight) of a particulate inorganic material (preferably of silicon dioxide) which serves to advantageously decrease its volumetric coefficient of thermal expansion and to advantageously increase its thermal conductivity. In a preferred embodiment the electronic component which is encapsulated is a semiconductor device, such a relatively delicate quad or dual-in-line integrated circuit device which is assembled onto a flat prestamped lead frame or other conductive device having a plurality of leads which extend outside the area which is encapsulated. The resulting encapsulated electronic component is well protected in spite of the relatively low molecular weight of the liquid crystalline polymer and is capable of satisfactory service for an extended period of time even if adverse environmental conditions are encountered. A rugged commonly nonburning and relatively inexpensive package is provided.
摘要翻译：提供了一种改进的热塑性模塑组合物，其特别适合于在电子部件的相对快速的基础上用于不透水的无空隙的封装，其中在通过注射引入模塑组合物之前将预成型的电子部件定位在模腔中成型。模塑组合物包含熔体加工的热致液晶聚合物，其具有约4,000至25,000（例如约4,000至10,000）的相对低的重均分子量，并且其在加热时基本上不能进一步链生长。均匀分散在液晶聚合物内的颗粒无机材料（优选为二氧化硅）为约40至80重量％（例如约50至75重量％），其用于有利地降低其体积热膨胀系数并且有利地增加其导热性。在优选实施例中，封装的电子部件是半导体器件，这种相对精密的四线或双列直插集成电路器件被组装到扁平预压引线框架或其它导电器件上，该器件具有多个引线，被封装的区域。尽管液晶聚合物的分子量相对较低，但是所得到的封装的电子部件被很好地保护，并且即使遇到不利的环境条件，也能够长时间地满足服务。提供了坚固的通常不燃烧和相对便宜的包装。

49. 发明授权

US4567247A Process for forming thermally stable thermotropic liquid crystalline polyesters of predetermined chain length utilizing aromatic hydroxyl monomer and/or aromatic amine monomer 失效
标题翻译：使用芳族羟基单体和/或芳族胺单体形成具有预定链长的热稳定的热致液晶聚酯的方法
公开(公告)号：US4567247A
公开(公告)日：1986-01-28
申请号：US611299
申请日：1984-05-17
申请人： Hyun-Nam Yoon
发明人： Hyun-Nam Yoon
IPC分类号： C08G63/00 , C08G63/06 , C08G63/60 , C08G63/664 , C08G63/78 , C08G69/00 , C08G69/44 , C09K19/38
CPC分类号： C08G63/605 , C08G69/44 , C09K19/3809
摘要： An improved polymerization process is provided for the formation of a polyester which is capable of forming an anisotropic melt phase and which optionally may include amide linkages. An approximately 0.25 to 4 percent molar excess of aromatic hydroxyl monomer and/or aromatic amine monomer and/or an esterified and/or amidated derivative thereof is provided in the polymerization zone during the polymerization reaction. Such monomer imparts dioxyaryl, diaminoaryl, or oxyaminoaryl units to the interior of the resulting polymer chains and causes the polymer chains to terminate in hydroxyl end groups and/or an esterified derivative thereof and/or amino end groups and/or an amidated derivative thereof wherein the polymer chains achieve a predetermined average chain length through the depletion of other monomers present in the polymerization zone. The resulting polyester unlike the usual product of the prior art is substantially incapable of additional chain growth upon subsequent heating and accordingly may be relied upon to maintain a substantially constant viscosity during melt processing regardless of the duration of heating.
摘要翻译：提供改进的聚合方法用于形成能够形成各向异性熔融相的聚酯，并且任选地可以包括酰胺键。在聚合反应期间，在聚合区域中提供约0.25至4％摩尔过量的芳族羟基单体和/或芳族胺单体和/或其酯化和/或酰胺化衍生物。这样的单体将二芳基，二氨基芳基或氧氨基芳基单元赋予所得聚合物链的内部，并使聚合物链终止于羟基端基和/或其酯化衍生物和/或氨基端基和/或其酰胺化衍生物，其中通过消耗聚合区中存在的其它单体，聚合物链达到预定的平均链长。所得聚酯与现有技术的通常产品不同，在随后的加热中基本上不能增加链条生长，因此可以依赖于在熔融加工期间保持基本恒定的粘度，而不管加热的持续时间如何。

50. 发明授权

US4539386A Process for forming thermally stable thermotropic liquid crystalline polyesters of predetermined chain length 失效
标题翻译：用于形成具有预定链长的热稳定性热致液晶聚酯的方法
公开(公告)号：US4539386A
公开(公告)日：1985-09-03
申请号：US517865
申请日：1983-07-27
申请人： Hyun-Nam Yoon
发明人： Hyun-Nam Yoon
IPC分类号： C08G18/00 , C08G18/16 , C08G63/00 , C08G63/06 , C08G63/18 , C08G63/19 , C08G63/60 , C08G63/68 , C08G63/685 , C08G63/78 , C08G69/00 , C08G69/44
CPC分类号： C08G63/605 , C08G69/44
摘要： An improved polymerization process is provided for the formation of a polyester which is capable of forming an anisotropic melt phase and which optionally may include amide linkages. An approximately 0.25 to 4 percent molar excess of aromatic dicarboxylic acid monomer (e.g. terephthalic acid) and/or an esterified derivative thereof is provided in the polymerization zone during the polymerization reaction. Such monomer imparts dicarboxyaryl units to the interior of the resulting polymer chains and causes the polymer chains to terminate in carboxylic acid end groups and/or an esterified derivative thereof wherein the polymer chains achieve a predetermined average chain length through the depletion of other monomers present in the polymerization zone. The resulting polyester unlike the usual product of the prior art is substantially incapable of additional chain growth upon subsequent heating and accordingly may be relied upon to maintain a substantially constant viscosity during melt processing regardless of the duration of heating.
摘要翻译：提供改进的聚合方法用于形成能够形成各向异性熔融相的聚酯，并且任选地可以包括酰胺键。在聚合反应期间，在聚合区域中提供了约0.25至4％摩尔过量的芳族二羧酸单体（例如对苯二甲酸）和/或其酯化衍生物。这样的单体将二羧基芳基单元赋予所得聚合物链的内部，并使聚合物链终止于羧酸端基和/或其酯化衍生物中，其中聚合物链通过其中存在的其它单体的消耗而达到预定的平均链长聚合区。所得聚酯与现有技术的通常产品不同，在随后的加热中基本上不能增加链条生长，因此可以依赖于在熔融加工期间保持基本恒定的粘度，而不管加热的持续时间如何。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式