公开(公告)号：US5004774A

公开(公告)日：1991-04-02

申请号：US289308

申请日：1988-12-23

申请人： Jong K. Yeo ,  Chung S. Kim ,  Dong J. Lee ,  Sung H. Jang

发明人： Jong K. Yeo ,  Chung S. Kim ,  Dong J. Lee ,  Sung H. Jang

IPC分类号： C08L79/08 ,  C08K5/14 ,  C08K5/3445 ,  C08K5/35

CPC分类号： C08K5/14 ,  C08K5/3445

摘要： A thermosetting polymide resin composition having an excellent molding processing property, heat resistance, low mold shrinkage, and good external appearance of its manufacture which comprises a modified bismaleimide resin prepared by reacting the Michael addition reaction of bismaleimides with aromatic primary diamines and aromatic secondary diamines, an inorganic filler, silicone oil, and a mixed catalyst composed of organic peroxides and imidazoles.

摘要翻译： 具有优异的成型加工性，耐热性，低收缩率和良好的外观的热固性聚酰亚胺树脂组合物，其包含通过使双马来酰亚胺的迈克尔加成反应与芳族伯二胺和芳族仲二胺反应制备的改性双马来酰亚胺树脂， 无机填料，硅油，以及由有机过氧化物和咪唑构成的混合催化剂。

公开(公告)号：US06475254B1

公开(公告)日：2002-11-05

申请号：US09987863

申请日：2001-11-16

申请人： Aaron W. Saak ,  Mark P. D'Evelyn ,  Chung S. Kim ,  Michael H. Zimmerman ,  Steven W. Webb

发明人： Aaron W. Saak ,  Mark P. D'Evelyn ,  Chung S. Kim ,  Michael H. Zimmerman ,  Steven W. Webb

IPC分类号： C09K314

CPC分类号： B24D3/14 ,  C09K3/1436

摘要： Coated abrasive particle for use in vitreous bond matrices, which particle is coated with between 1 and about 50 coating layers. Each coating layer ranges in thickness from between about 0.1 and 50 microns. Each layer has the composition, MCXNYBZOW, where, M represents one or more of Ti, Si, V, Cr, Zr, Nb, Mo, Hf, Ta, W, Re or a rare earth metal, and w, x, y, and z, each range from between 0 and 3. The outermost coating layer has a concentration of oxygen that is higher by a factor of at least about 2 than the layer in direct contact with the abrasive particle.

摘要翻译： 用于玻璃质基质的涂覆磨料颗粒，该颗粒涂覆有1至约50个涂层。 每个涂层的厚度范围为约0.1-50微米。 每层具有组成，MCXNYBZOW，其中，M表示Ti，Si，V，Cr，Zr，Nb，Mo，Hf，Ta，W，Re或稀土金属中的一种或多种，​​w，x，y， 和z，每个范围在0和3之间。最外涂层的氧浓度比直接与磨料颗粒接触的层高至少约2倍。

公开(公告)号：US5885323A

公开(公告)日：1999-03-23

申请号：US845602

申请日：1997-04-25

申请人： Chung S. Kim ,  Kenneth M. Goodson

发明人： Chung S. Kim ,  Kenneth M. Goodson

IPC分类号： C21C5/30 ,  C21C5/46 ,  C21C5/32

CPC分类号： C21C5/4606 ,  C21C5/305

摘要： A method of improving post-combustion heat recovery in a vessel containing a charge of molten ferrous metal and slag includes the use of a lance for the introduction of oxygen gas into the charge. The method includes blowing oxygen into the charge through at least one first nozzle of the lance for refining the molten metal into steel. Oxygen is blown through at least one second nozzle of the lance from at least one location spaced above the first nozzle at an oxygen flow rate effective to produce foamy slag in an amount for obtaining a post-combustion heat transfer efficiency of at least about 40% without appreciable overflow of the slag from the vessel. The oxygen flow rate from the second nozzle is at a minimum at about a starting point of a peak decarburization period of the charge. Iron oxide containing pellets may also be added to the charge. In this case, the oxygen flow rate from the first nozzle may be reduced while the iron oxide containing material is being added, and the reduced oxygen flow may be replenished with an inert gas.

摘要翻译： 一种改善在含有熔融黑色金属和炉渣的容器中的燃烧后热回收的方法包括使用喷枪将氧气引入电荷中。 该方法包括通过喷枪的至少一个第一喷嘴将氧吹入进料，以将熔融金属精炼成钢。 氧气通过喷枪的至少一个第二喷嘴从至少一个位置以第一喷嘴间隔开的氧气流速吹送，以有效地产生泡沫炉渣，其量用于获得至少约40％的燃烧后传热效率， 没有来自容器的渣的明显溢出。 来自第二喷嘴的氧气流速在电荷的峰值脱碳期的起点附近是最小的。 还可以向电荷中加入含氧化铁的颗粒。 在这种情况下，可以减少来自第一喷嘴的氧气流量，同时添加含氧化铁的材料，并且还可以用惰性气体补充还原氧气流。

公开(公告)号：US06596040B2

公开(公告)日：2003-07-22

申请号：US10174914

申请日：2002-06-19

申请人： Aaron W. Saak ,  Mark P. D'Evelyn ,  Chung S. Kim ,  Michael H. Zimmerman ,  Steven W. Webb

发明人： Aaron W. Saak ,  Mark P. D'Evelyn ,  Chung S. Kim ,  Michael H. Zimmerman ,  Steven W. Webb

IPC分类号： C09K314

CPC分类号： B24D3/14 ,  C09K3/1436

摘要： Coated abrasive particle for use in vitreous bond matrices, which particle is coated with between 1 and about 50 coating layers. Each coating layer ranges in thickness from between about 0.1 and 50 microns. Each layer has the composition, MCxNyBzOw, where, M represents one or more of Ti, Si, V, Cr, Zr, Nb, Mo, Hf, Ta, W, Re or a rare earth metal, and w, x, y, and z, each range from between 0 and 3. The outermost coating layer has a concentration of oxygen that is higher by a factor of at least about 2 than the layer in direct contact with the abrasive particle.

摘要翻译： 用于玻璃质基质的涂覆磨料颗粒，该颗粒涂覆有1至约50个涂层。 每个涂层的厚度范围为约0.1-50微米。 每层具有组成为MCxNyBzOw，其中M表示Ti，Si，V，Cr，Zr，Nb，Mo，Hf，Ta，W，Re或稀土金属中的一种或多种，​​w，x，y， 和z，每个范围在0和3之间。最外涂层的氧浓度比直接与磨料颗粒接触的层高至少约2倍。

公开(公告)号：US5584909A

公开(公告)日：1996-12-17

申请号：US375343

申请日：1995-01-19

申请人： Chung S. Kim

发明人： Chung S. Kim

IPC分类号： C21C5/30 ,  C21C5/32 ,  C21C5/36

CPC分类号： C21C5/32 ,  C21C2005/366

摘要： A method of improving the post-combustion heat recovery in a basic oxygen furnace by controllably forming a foamy slag. The foamy slag is generated by increasing the lance height and reducing the rate of lance height reduction during the oxygen blowing cycle. The foamy slag is controlled to prevent slopping by calculating the approximate starting point of the peak decarburization period for the charge and then adjusting the oxygen flow rate to be at a minimum at the commencement of the peak decarburization period.

摘要翻译： 一种通过可控地形成泡沫状炉渣来改善碱性氧气炉中的后燃热回收的方法。 通过增加喷枪高度并降低吹氧循环期间喷枪高度降低的速率来产生泡沫状炉渣。 通过计算充电峰值脱碳期的近似起点，然后在峰值脱碳期开始时将氧气流量调节至最低，控制泡沫炉渣以防止流失。

公开(公告)号：US5071947A

公开(公告)日：1991-12-10

申请号：US528083

申请日：1990-05-24

申请人： Jong K. Yeo ,  Chung S. Kim ,  Dong J. Lee

发明人： Jong K. Yeo ,  Chung S. Kim ,  Dong J. Lee

IPC分类号： C08G73/12

CPC分类号： C08G73/121

摘要： A denatured bismaleimide resin of repeating units represented by the following formula (I) and process for preparing same which comprises the Michael addition reaction of a bismaleimide and an aromatic secondary diamine: ##STR1## wherein, n represents an integer of 1 to 3, A represents a divalent group having from 2 to 20 carbon atoms,A' represents a divalent group having less than 20 carbon atoms which includes at least one or more aromatic groups, andR represents aliphatic having from 1 to 10 carbon atoms.

摘要翻译： 由下式（I）表示的重复单元的变性双马来酰亚胺树脂及其制备方法，其包含双马来酰亚胺和芳族仲胺的迈克尔加成反应：其中，n表示1〜 3，A表示碳原子数2〜20的二价基团，A'表示碳原子数少于20的二价基团，其包含至少一个以上的芳香族基团，R表示碳原子数为1〜10的脂肪族。

公开(公告)号：US5897684A

公开(公告)日：1999-04-27

申请号：US839291

申请日：1997-04-17

申请人： Chung S. Kim ,  Ken M. Goodson

发明人： Chung S. Kim ,  Ken M. Goodson

IPC分类号： C21C5/30 ,  C23F13/02

CPC分类号： C23F13/02 ,  C23F2201/02 ,  C23F2213/22

摘要： A BOF process in which iron oxide units are added to the melt during the blow characterized in that the oxygen flow is reduced during pellet feeding and is replenished with inert gas so that the total gas flow remains the same as that designed to achieve optimum BOF performance.

摘要翻译： 在吹塑过程中将氧化铁单元添加到熔体中的BOF方法，其特征在于在颗粒进料期间氧气流量减少，并且用惰性气体补充，使得总气体流量保持与设计成实现最佳BOF性能相同 。

公开(公告)号：US5830259A

公开(公告)日：1998-11-03

申请号：US670125

申请日：1996-06-25

申请人： Chung S. Kim ,  Ken M. Goodson

发明人： Chung S. Kim ,  Ken M. Goodson

IPC分类号： C21C5/46 ,  F27D1/16 ,  C21B15/00

CPC分类号： F27D1/1694 ,  C21C5/4693

摘要： A self-cleaning lance includes a lance body elongated along a longitudinal axis and having an upper end portion and a lower end portion, the lower end portion being spaced apart from the upper end portion along the longitudinal axis. One or more main nozzles are located proximal to the lower end portion and are adapted to release an oxygen-containing gas. One or more deskulling nozzles are spaced upwardly from the lower end portion and are adapted to release a deskulling gas. The lance body has a first portion that extends axially from the deskulling nozzles to the main nozzles and a second portion above the deskulling nozzles. The first portion has a smaller outer perimeter than the outer perimeter of the second portion. Each of the deskulling nozzles extends by an angle of not greater than 25 degrees with respect to the longitudinal axis.

摘要翻译： 自清洁喷枪包括沿着纵向轴线延伸并具有上端部分和下端部分的喷枪体，所述下端部分沿着纵向轴线与上端部分间隔开。 一个或多个主喷嘴位于下端部分的近侧并适于释放含氧气体。 一个或多个仰卧喷嘴与下端部分向上间隔开并且适于释放踏板气体。 喷枪体具有从俯仰喷嘴轴向延伸到主喷嘴的第一部分和在仰卧喷嘴上方的第二部分。 第一部分具有比第二部分的外周边更小的外周边。 每个俯仰喷嘴相对于纵向轴线延伸不大于25度的角度。

公开(公告)号：US5498683A

公开(公告)日：1996-03-12

申请号：US210057

申请日：1994-03-15

申请人： Chung S. Kim

发明人： Chung S. Kim

IPC分类号： C08F220/26 ,  C08F290/06 ,  C08F20/26 ,  C08F265/04

CPC分类号： C08F290/06 ,  C08F220/26

摘要： Binder premix or primer compositions comprise (a) vinyl esters and/or unsaturated polyesters containing characteristic linkages, --COO--CH.sub.2 --CHOH--CH.sub.2 O--, (b) monofunctional and/or polyfunctional vinyl monomers and/or monofunctional and/or polyfunctional resins, and (c) monofunctional and polyfunctional vinyl monomers and/or monofunctional and/or polyfunctional resins which have very high group molar attraction constants. The primer or binder premix is utilized in the repair of a bridge, highway, roadway, airport runway, parking structure, or patio and similar type structures.

摘要翻译： 粘合剂预混物或底漆组合物包含（a）含有特征键的乙烯基酯和/或不饱和聚酯，-COO-CH 2 -CHOH-CH 2 O-，（b）单官能和/或多官能乙烯基单体和/或单官能和/或多官能树脂， 和（c）具有非常高的摩尔吸引常数的单官能和多官能的乙烯基单体和/或单官能和/或多官能的树脂。 底漆或粘合剂预混物用于桥梁，高速公路，道路，机场跑道，停车场或庭院和类似类型结构的修复。

公开(公告)号：US5041531A

公开(公告)日：1991-08-20

申请号：US517014

申请日：1990-04-27

申请人： Chung S. Kim

发明人： Chung S. Kim

IPC分类号： C08G65/24

CPC分类号： C08G65/24

摘要： A process for preparing polyepichlorohydrin which comprises polymerizing epichlorohydrin in the presence of a catalytic amount of 1,4-butaneditriflate. The resulting polymer can have a molecular weight of about 5,000 to about 15,000. The polymer is telechelic. It can be terminated with a broad variety of functional groups.

摘要翻译： 一种制备聚表氯醇的方法，该方法包括在催化量的1,4-丁二酸三甲酯存在下聚合表氯醇。 所得聚合物的分子量可以为约5,000至约15,000。 聚合物是遥爪的。 它可以用各种功能组终止。