-
公开(公告)号：US5312994A
公开(公告)日：1994-05-17
申请号：US45343
申请日：1993-04-02
IPC分类号： C07C25/24 , C07C45/46 , C07C45/68 , C07C45/71 , C07C49/813 , C07C49/84 , C07C205/06 , C07C205/45 , C07C317/14 , C07C22/08 , C07C49/794
CPC分类号： C07C317/14 , C07C205/06 , C07C205/45 , C07C25/24 , C07C45/46 , C07C45/68 , C07C45/71 , C07C49/813 , C07C49/84
摘要： A composition of matter having the general structure: ##STR1## (wherein X is F, Cl, or NO.sub.2, and Y is CO, SO.sub.2 or C(CF.sub.3).sub.2) is employed to terminate a nucleophilic reagent, resulting in the exclusive production of phenylethynyl terminated reactive oligomers which display unique thermal characteristics. A reactive diluent having the general structure: ##STR2## (wherein R is any aliphatic or aromatic moiety) is employed to decrease the melt viscosity of a phenylethynyl terminated reactive oligomer and to subsequently react therewith to provide a thermosetting material of enhanced density. These materials have features which make them attractive candidates for use as composite matrices and adhesives.
摘要翻译： 使用具有以下一般结构的物质组合物：其中X是F，Cl或NO 2，Y是CO，SO 2或C（CF 3）2），以终止亲核试剂，导致专门生产 苯基乙炔基封端的反应性低聚物，显示独特的热特性。 使用具有以下一般结构的反应性稀释剂：其中R是任何脂族或芳族部分，以降低苯基乙炔基封端的反应性低聚物的熔融粘度，并随后与其反应以提供增强密度的热固性材料。 这些材料具有使其成为用作复合基质和粘合剂的有吸引力的候选物的特征。
-
公开(公告)号：US10262951B2
公开(公告)日：2019-04-16
申请号：US14279601
申请日：2014-05-16
申请人： Jin Ho Kang , Godfrey Sauti , Cheol Park , Luke Gibbons , Sheila Ann Thibeault , Sharon E. Lowther , Robert G. Bryant
发明人： Jin Ho Kang , Godfrey Sauti , Cheol Park , Luke Gibbons , Sheila Ann Thibeault , Sharon E. Lowther , Robert G. Bryant
IPC分类号： H01L21/44 , H01L23/556 , H01L23/552 , H01L21/78 , H01L23/31 , H01L21/311 , H01L23/495 , H01L23/00
摘要： A novel radiation hardened chip package technology protects microelectronic chips and systems in aviation/space or terrestrial devices against high energy radiation. The proposed technology of a radiation hardened chip package using rare earth elements and mulitlayered structure provides protection against radiation bombardment from alpha and beta particles to neutrons and high energy electromagnetic radiation.
-
13.发明授权Electro-active device using radial electric field piezo-diaphragm for control of fluid movement 失效使用径向电场压电隔膜的电活动装置来控制流体运动公开(公告)号：US06856073B2
公开(公告)日：2005-02-15
申请号：US10390675
申请日：2003-03-13
CPC分类号： F04B43/095
摘要： A fluid-control electro-active device includes a piezo-diaphragm made from a ferroelectric material sandwiched by first and second electrode patterns configured to introduce an electric field into the ferroelectric material when voltage is applied thereto. The electric field originates at a region of the ferroelectric material between the first and second electrode patterns, and extends radially outward from this region of the ferroelectric material and substantially parallel to the plane of the ferroelectric material. The piezo-diaphragm deflects symmetrically about this region in a direction substantially perpendicular to the electric field. An annular region coupled to and extending radially outward from the piezo-diaphragm perimetrically borders the piezo-diaphragm. A housing is connected to the annular region and defines at least one fluid flow path therethrough with the piezo-diaphragm disposed therein.
摘要翻译： 流体控制电动装置包括由铁电材料制成的压电膜，该铁电体材料被夹在被施加电压的第一和第二电极图案构成以将电场引入铁电材料中。 电场起始于第一和第二电极图案之间的铁电材料的区域，并且从铁电材料的该区域径向向外延伸并且基本上平行于铁电体材料的平面。 压电隔膜在大致垂直于电场的方向上围绕该区域对称地偏转。 耦合到压电隔膜的径向外侧的环形区域围绕压电隔膜。 壳体连接到环形区域并限定其中设置有压电隔膜的至少一个流体流动通道。
-
公开(公告)号：US5412066A
公开(公告)日：1995-05-02
申请号：US209512
申请日：1994-03-03
IPC分类号： C08G73/10 , C09D179/08
CPC分类号： C09D179/08 , C08G73/101 , Y10S526/935
摘要： Four phenylethynyl amine compounds--3 and 4-aminophenoxy-4'-phenylethynylbenzophenone, and 3 and 4-amino-4'-phenylethynylbenzophenone--were readily prepared and were used to endcap imide oligomers. Phenylethynyl-terminated amide acid oligomers and phenylethynyl-terminated imide oligomers with various molecular weights and compositions were prepared and characterized. These oligomers were cured at 300.degree. C. to 400.degree. C. to provide crosslinked polyimides with excellent solvent resistance, high strength and modulus and good high temperature properties. Adhesive panels, composites, films and moldings from these phenylethynyl terminated imide oligomers gave excellent mechanical performance.
摘要翻译： 四苯基乙炔基胺化合物-3和4-氨基苯氧基-4'-苯基乙炔基二苯甲酮和3和4-氨基-4'-苯基乙炔基二苯甲酮容易制备并用于端基酰亚胺低聚物。 制备和表征具有各种分子量和组成的苯基乙炔基封端的酰胺酸低聚物和苯基乙炔基封端的酰亚胺低聚物。 这些低聚物在300℃〜400℃下固化，得到交联的聚酰亚胺，具有优异的耐溶剂性，高强度，模量和良好的高温性能。 这些苯基乙炔基封端的酰亚胺低聚物的粘合剂面板，复合材料，薄膜和模制品具有出色的机械性能。
-
公开(公告)号：US5268444A
公开(公告)日：1993-12-07
申请号：US45336
申请日：1993-04-02
CPC分类号： C08G65/4012 , C08G2650/60
摘要： Phenylethynyl-terminated poly(arylene ethers) are prepared in a wide range of molecular weights by adjusting monomer ratio and adding an appropriate amount of 4-fluoro-4'-phenylethynylbenzophenone during polymer synthesis. The resulting phenylethynyl-terminated poly(arylene ethers) react and crosslink upon curing for one hour at 350.degree. C. to provide materials with improved solvent resistance, higher modulus and better high temperature properties than the linear, uncrosslinked polymers.
摘要翻译： 通过调节单体比例并在聚合物合成过程中加入适量的4-氟-4'-苯基乙炔基二苯甲酮，在宽范围的分子量下制备苯基乙炔基封端的聚（亚芳基醚）。 所得苯基乙炔基封端的聚（亚芳基醚）在350℃下固化反应并交联1小时，以提供具有比直链的未交联聚合物更好的耐溶剂性，更高的模量和更好的高温性能的材料。
-
公开(公告)号：US07647771B2
公开(公告)日：2010-01-19
申请号：US11374480
申请日：2006-03-08
IPC分类号： F01B29/10
CPC分类号： F16F1/3605 , F03G7/06 , F15B2015/208 , F16F9/006 , F16F9/16 , F16F9/53 , F16F2222/02 , F16F2236/045
摘要： A thermally driven piston assembly's housing has (i) a first material slidingly fitted therein, and (ii) at least one plug of a second material slidingly fitted therein and abutting the first material. The first material is one (e.g., a liquid crystal elastomer) that undergoes a stiffness change and/or a dimensional change when subjected to a temperature change in the temperature range of interest. When subjected to the temperature change while in the housing, the first material is restricted to changing dimensionally along a single dimension. The second material retains its shape and size throughout the temperature range of interest. As a result, the plug moves in the housing in correspondence with the dimensional change of the first material or the plug's movement is damped by the stiffness change of the first material.
摘要翻译： 热驱动活塞组件的壳体具有（i）滑动地装配在其中的第一材料，和（ii）滑动地装配在其中并邻接第一材料的第二材料的至少一个塞子。 第一种材料是当在感兴趣的温度范围内经历温度变化时经历刚度变化和/或尺寸变化的一种（例如，液晶弹性体）。 当在壳体中经受温度变化时，第一材料被限制为沿着单个尺寸尺寸变化。 第二种材料在感兴趣的温度范围内保持其形状和尺寸。 结果，塞子在壳体中与第一材料的尺寸变化相对应地移动，或者塞子的运动被第一材料的刚度变化所阻尼。
-
公开(公告)号：US6048959A
公开(公告)日：2000-04-11
申请号：US246210
申请日：1999-01-22
申请人： Robert G. Bryant
发明人： Robert G. Bryant
IPC分类号： C08G73/10
CPC分类号： C08G73/1042 , C08G73/1053 , C08G73/1071
摘要： Tough, soluble, aromatic, thermoplastic copolyimides were prepared by reacting 4,4'-oxydiphthalic anhydride, 3,4,3',4'-biphenyltetracarboxylic dianhydride and 3,4'-oxydianiline. Alternatively, these copolyimides may be prepared by reacting 4,4'-oxydiphthalic anhydride with 3,4,3',4'-biphenyltetracarboxylic dianhydride and 3,4'-oxydiisocyanate. Also, the copolyimide may be prepared by reacting the corresponding tetra acid and ester precursors of 4,4'-oxydiphthalic anhydride and 3,4,3',4'-biphenyltetracarboxylic dianhydride with 3,4'-oxydianiline. These copolyimides were found to be soluble in common amide solvents such as N,N'-dimethyl acetamide, N-methylpyrrolidinone, and dimethylformamide allowing them to be applied as the fully imidized copolymer and to be used to prepare a wide range of articles.
摘要翻译： 通过使4,4'-氧联二邻苯二甲酸酐，3,4,3'，4'-联苯四羧酸二酐和3,4'-氧二苯胺反应制备了坚硬，可溶性，芳族，热塑性共聚酰亚胺。 或者，这些共聚酰亚胺可以通过使4,4'-氧联二邻苯二甲酸酐与3,4,3'，4'-联苯四羧酸二酐和3,4'-氧代二异氰酸酯反应来制备。 此外，共聚酰亚胺可以通过使4,4'-氧联二邻苯二甲酸酐和3,4,3'，4'-联苯四羧酸二酐与3,4'-氧二苯胺相应的四酸和酯前体反应来制备。 发现这些共聚酰亚胺可溶于常用的酰胺溶剂如N，N'-二甲基乙酰胺，N-甲基吡咯烷酮和二甲基甲酰胺，它们可以用作完全酰亚胺化的共聚物并用于制备多种制品。
-
公开(公告)号：US5626775A
公开(公告)日：1997-05-06
申请号：US645439
申请日：1996-05-13
IPC分类号： C23C16/44 , H01L21/02 , H01L21/311 , H01L21/3213 , H01L21/00
CPC分类号： H01L21/02071 , C23C16/4405 , H01L21/31116 , Y02C20/30 , Y02P70/605
摘要： The present invention is directed to the etching of a material selected from the group consisting of silicon dioxide, silicon nitride, boronphosphorus silicate glass, fluorosilicate glass, siliconoxynitride, tungsten, tungsten silicide and mixtures thereof under plasma etch conditions, particularly for cleaning operations to remove silicon dioxide or silicon nitride from the walls and other surfaces within a reaction chamber of a plasma-enhanced chemical vapor deposition reactor. The etching chemicals used in the etch process are trifluoroacetic acid and it derivatives, such as; trifluoroacetic anhydride, trifluoromethyl ester of trifluoroacetic acid and trifluoroacetic acid amide and mixtures thereof.
摘要翻译： 本发明涉及在等离子体蚀刻条件下蚀刻选自二氧化硅，氮化硅，磷硅酸盐玻璃，氟硅酸盐玻璃，硅氧氮化物，钨，硅化钨及其混合物的材料，特别是用于清除 来自等离子体增强化学气相沉积反应器的反应室内的壁和其它表面的二氧化硅或氮化硅。 在蚀刻过程中使用的蚀刻化学品是三氟乙酸及其衍生物，例如; 三氟乙酸酐，三氟乙酸的三氟甲酯和三氟乙酸酰胺及其混合物。
-
公开(公告)号：US5426234A
公开(公告)日：1995-06-20
申请号：US245171
申请日：1994-05-16
IPC分类号： C07C25/24 , C07C45/46 , C07C45/68 , C07C45/71 , C07C49/813 , C07C49/84 , C07C205/06 , C07C205/45 , C07C317/14 , C07C49/76
CPC分类号： C07C317/14 , C07C205/06 , C07C205/45 , C07C25/24 , C07C45/46 , C07C45/68 , C07C45/71 , C07C49/813 , C07C49/84
摘要： A composition of matter having the general structure: ##STR1## (wherein X is F, Cl, or NO.sub.2, and Y is CO, SO.sub.2 or C(CF.sub.3).sub.2) is employed to terminate a nucleophilic reagent, resulting in the exclusive production of phenylethynyl terminated reactive oligomers which display unique thermal characteristics. A reactive diluent having the general structure: ##STR2## (wherein R is any aliphatic or aromatic moiety) is employed to decrease the melt viscosity of a phenylethynyl terminated reactive oligomer and to subsequently react therewith to provide a thermosetting material of enhanced density. These materials have features which make them attractive candidates for use as composite matrices and adhesives.
摘要翻译： 使用具有以下一般结构的物质组合物：其中X是F，Cl或NO 2，Y是CO，SO 2或C（CF 3）2），以终止亲核试剂，导致专门生产 苯基乙炔基封端的反应性低聚物，显示独特的热特性。 使用具有以下一般结构的反应性稀释剂：其中R是任何脂族或芳族部分，以降低苯基乙炔基封端的反应性低聚物的熔融粘度，并随后与其反应以提供增强密度的热固性材料。 这些材料具有使其成为用作复合基质和粘合剂的有吸引力的候选物的特征。
-
20.发明授权Clay magnetic resonance contrast agents for gastrointestinal comsumption or introduction 失效粘土磁共振造影剂用于胃肠道消化或引入
公开(公告)号：US4927624A
公开(公告)日：1990-05-22
申请号：US123007
申请日：1987-11-19
申请人： Robert G. Bryant , Jay J. Listinsky
发明人： Robert G. Bryant , Jay J. Listinsky
CPC分类号： G01R33/5601 , A61K49/06 , A61K49/1806 , Y10T436/24
摘要： Contrast medium compositions for delineation of bowel during magnetic resonance imaging (MRI) of the abdomen are provided for oral or rectal administration. The compositions consist of aqueous suspensions of clay in finely-divided particles which expose a large surface area to the suspending water and impose a condition of dynamic anisotropy upon the adjacent water, resulting in reduction predominantly in the transverse relaxation time of the water and subsequent loss of signal from the bowel lumen.
摘要翻译： 用于在腹部磁共振成像（MRI）下用于描绘肠的对比培养基组合物用于口服或直肠给药。 组合物由细碎颗粒中的粘土的水性悬浮液组成，其将大的表面积暴露于悬浮水并且在相邻的水上施加动态各向异性的条件，导致主要在水的横向弛豫时间和随后的损失 来自肠腔的信号。
-
-
-
-
-
-
-
-
-
搜索结果
32 条记录 (耗时 0.037 秒)
