公开(公告)号：US5700860A

公开(公告)日：1997-12-23

申请号：US622280

申请日：1996-03-27

申请人： Michinori Nishikawa ,  Tsuyoshi Miyamoto ,  Shigeo Kawamura ,  Kyouyu Yasuda ,  Yasuaki Mutsuga ,  Yasuo Matsuki

发明人： Michinori Nishikawa ,  Tsuyoshi Miyamoto ,  Shigeo Kawamura ,  Kyouyu Yasuda ,  Yasuaki Mutsuga ,  Yasuo Matsuki

IPC分类号： G02F1/1337 ,  C08K5/06

CPC分类号： G02F1/133723

摘要： A liquid crystal aligning agent, which contains (1) at least one polymer selected from a polyamic acid and an imidized polymer therefrom; (2) at least one first solvent selected from the group consisting of N-alkyl-2-pyrrolidones, lactones and 1,3-dialkyl-2-imidazolidinones; (3) at least one second solvent from (a) a phenyl ether solvent of the formula (I): ##STR1## and (b) an ester ether solvent of the formula (II) ##STR2## wherein R.sup.1 -R.sup.6, a, b and c are as defined herein.

摘要翻译： 一种液晶取向剂，其含有（1）至少一种选自聚酰胺酸和其酰亚胺化聚合物的聚合物; （2）至少一种选自N-烷基-2-吡咯烷酮，内酯和1,3-二烷基-2-咪唑啉酮的第一溶剂; （3）至少一种来自（a）式（I）的苯基醚溶剂的第二溶剂：（I）和（b）式（II）的酯醚溶剂（II）其中 R1-R6，a，b和c如本文所定义。

公开(公告)号：US5698135A

公开(公告)日：1997-12-16

申请号：US568508

申请日：1995-12-07

申请人： Michinori Nishikawa ,  Shigeo Kawamura ,  Yasuo Matsuki ,  Kyouyu Yasuda ,  Tsuyoshi Miyamoto

发明人： Michinori Nishikawa ,  Shigeo Kawamura ,  Yasuo Matsuki ,  Kyouyu Yasuda ,  Tsuyoshi Miyamoto

IPC分类号： C08G73/10 ,  C09K19/56 ,  G02F1/1337 ,  C08G69/36 ,  C09K19/52

CPC分类号： C08G73/10 ,  C08G73/1085 ,  G02F1/133723

摘要： A liquid crystal-aligning agent comprising at least one of a polyamic acid obtained by reacting (A) a tetracarboxylic acid dianhydride consisting of 70 to 98 mole % of a dianhydride of a tetracarboxylic acid such as ##STR1## or the like, and 2 to 30 mole % of a dianhydride of a cyclobutanetetracarboxylic acid, and (B) a diamine compound, and a polymer obtained by imidizing the polyamic acid.

摘要翻译： 一种液晶取向剂，其包含通过使（A）由70〜98摩尔％的四羧酸的二酐（如“IMAGE”）等组成的四羧酸二酐与2〜 30摩尔％的环丁烷四羧酸的二酐和（B）二胺化合物，以及通过酰亚胺化聚酰胺酸获得的聚合物。

公开(公告)号：US5969055A

公开(公告)日：1999-10-19

申请号：US981829

申请日：1998-01-15

申请人： Michinori Nishikawa ,  Kyouyu Yasuda ,  Shigeo Kawamura ,  Tsukasa Toyoshima ,  Yasuo Matsuki ,  Kengo Wakabayashi

发明人： Michinori Nishikawa ,  Kyouyu Yasuda ,  Shigeo Kawamura ,  Tsukasa Toyoshima ,  Yasuo Matsuki ,  Kengo Wakabayashi

IPC分类号： C08G73/10 ,  G02F1/1337 ,  C09K19/56 ,  G02F1/13

CPC分类号： C08G73/10 ,  G02F1/133723

摘要： A liquid crystal alignment agent containing at least two kinds of polymers selected from the group consisting of polyamic acids and imidized polymers and having a structure obtained by dehydration and ring closure of polyamic acid. In the at least two kinds of polymers contained in the liquid crystal alignment agent, the polymer of higher imidization degree has a smaller surface free energy. The liquid crystal alignment agent gives a liquid crystal display device having less stuck image and high pretilt angle.

摘要翻译： PCT No.PCT / JP97 / 01635 Sec。 371日期1998年1月15日 102（e）日期1998年1月15日PCT提交1997年5月15日PCT公布。 公开号WO97 / 43687 日期1997年11月20日含有选自聚酰胺酸和酰亚胺化聚合物中的至少两种聚合物的液晶取向剂，具有通过聚酰胺酸脱水和闭环获得的结构。 在液晶取向剂中所含的至少两种聚合物中，酰亚胺化度高的聚合物具有较小的表面自由能。 液晶取向剂给出了具有较少卡滞图像和高预倾角的液晶显示装置。

公开(公告)号：US5783656A

公开(公告)日：1998-07-21

申请号：US791616

申请日：1997-01-31

申请人： Masayuki Kimura ,  Tsukasa Toyoshima ,  Keiichi Yamamoto ,  Kengo Wakabayashi ,  Yasuo Matsuki ,  Kyouyu Yasuda

发明人： Masayuki Kimura ,  Tsukasa Toyoshima ,  Keiichi Yamamoto ,  Kengo Wakabayashi ,  Yasuo Matsuki ,  Kyouyu Yasuda

IPC分类号： C08G73/10 ,  G02F1/1337 ,  C08G69/26 ,  C08G73/12

CPC分类号： C08G73/1039 ,  G02F1/133723 ,  Y10T428/1023 ,  Y10T428/31721

摘要： There are provided a polyamic acid obtainable by reacting a diamine compound of the formula (1) ##STR1## wherein R.sup.1 is an alkyl group having 1 to 12 carbon atoms, a haloalkyl group having 1 to 12 carbon atoms or a halogen atom, each of X and Y is independently a divalent linking group, with a tetracarboxylic acid dianhydride; a polyimide obtainable by dehydrating and ring-closing the above polyamic acid; and a liquid crystal aligning agent containing the above polyamic acid and/or the above polyimide.

摘要翻译： 提供通过使式（1）的二胺化合物（1）其中R 1是具有1至12个碳原子的烷基，具有1至12个碳原子的卤代烷基或卤素原子得到的聚酰胺酸 X和Y各自独立地是二价连接基团与四羧酸二酐; 通过使上述聚酰胺酸脱水和闭环而获得的聚酰亚胺; 和含有上述聚酰胺酸和/或上述聚酰亚胺的液晶取向剂。

公开(公告)号：US5686543A

公开(公告)日：1997-11-11

申请号：US655676

申请日：1996-05-30

申请人： Kyouyu Yasuda ,  Akio Takashima

发明人： Kyouyu Yasuda ,  Akio Takashima

IPC分类号： C08F4/70 ,  C08F2/06 ,  C08F4/60 ,  C08F4/602 ,  C08F4/609 ,  C08F4/80 ,  C08F36/06 ,  C08F136/06

CPC分类号： C08F36/06

摘要： A process for producing a polybutadiene rubber having a cis-1,4 content of 94% or more, a ratio of weight average molecular weight to number average molecular weight of 2.5 to 3.5 as measured by a gel permeation chromatography and a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 20 to 100, which process comprises polymerizing 1,3-butadiene in an inert organic solvent with a catalyst comprising as the main components (a) a nickel compound; (b) a specific fluorine compound; (c) a trialkylaluminum; and (d) a halogenated aldehyde and/or a quinone compound. The use of the specific catalyst enables the production in a high yield of a polybutadiene rubber which maintains the abrasion resistance, high impact resilience and low heat buildup which are the characteristics of polybutadiene rubber and has a small die swell when extruded in the form of a blend with a natural rubber and is excellent in physical properties of vulcanizate.

摘要翻译： 制备顺式-1,4含量为94％以上的聚丁二烯橡胶的方法，通过凝胶渗透色谱法测定的重均分子量与数均分子量的比例为2.5〜3.5，门尼粘度（ML1 +4,100℃）为20〜100，该方法包括在惰性有机溶剂中用包含作为主要组分（a）的镍化合物的催化剂聚合1,3-丁二烯; （b）特定的氟化合物; （c）三烷基铝; 和（d）卤化醛和/或醌化合物。 使用特定的催化剂使得能够以高产率的聚丁二烯橡胶生产，其保持作为聚丁二烯橡胶的特性的耐磨性，高回弹性和低热积聚性，并且当以下列形式挤出时具有小的模头膨胀 与天然橡胶混合，硫化胶的物理性能优良。

公开(公告)号：US20070082965A1

公开(公告)日：2007-04-12

申请号：US10536909

申请日：2003-11-13

申请人： Kyouyu Yasuda ,  Yasuaki Yokoyama ,  Michiko Yokoyama ,  Naomi Shinoda ,  Risa Yokoyama ,  Nobuo Bessho

发明人： Kyouyu Yasuda ,  Yasuaki Yokoyama ,  Michiko Yokoyama ,  Naomi Shinoda ,  Risa Yokoyama ,  Nobuo Bessho

IPC分类号： C08G59/68

CPC分类号： G03F7/038

摘要： It is an object of the present invention to provide a novel photo-curing composition which can be cured by light of a wide wavelength region including ultraviolet light or visible light, has such high sensitivity that it can be sufficiently cured by exposure to a small amount of light, can favorably form a fine pattern when used as a resist and provides a cured product having excellent heat resistance and insulating properties, and a negative photoresist composition using the photo-curing composition. It is another object of the present invention to provide a process for highly accurately and easily producing a polyimide thin film used for a medical instrument, and a medical instrument having the polyimide thin film. The photo-curing composition of the present invention comprises (A) a carbon cluster and/or its derivative, having a photosensitizing function, (B) a compound having plural heterocyclic rings in a molecule, and if necessary, (C) a photo-insensitive resin.

摘要翻译： 本发明的目的是提供一种可通过包括紫外光或可见光在内的宽波长区域的光固化的新型光固化组合物，具有这样高的灵敏度，可以通过暴露于少量来充分固化 光可以有利地形成精细图案，并且提供具有优异的耐热性和绝缘性的固化产物，以及使用光固化组合物的负性光致抗蚀剂组合物。 本发明的另一个目的是提供一种用于高度准确且容易地制造用于医疗器械的聚酰亚胺薄膜和具有该聚酰亚胺薄膜的医疗器械的方法。 本发明的光固化性组合物包含（A）具有光敏作用的碳簇和/或其衍生物，（B）分子中具有多个杂环的化合物，根据需要，（C） 不敏感树脂。

公开(公告)号：US20070135543A1

公开(公告)日：2007-06-14

申请号：US10580456

申请日：2004-11-25

申请人： Kyouyu Yasuda ,  Nobuyuki Itou ,  Yasuaki Yokoyama ,  Michiko Yokoyama

发明人： Kyouyu Yasuda ,  Nobuyuki Itou ,  Yasuaki Yokoyama ,  Michiko Yokoyama

IPC分类号： C09J7/02

CPC分类号： C09J11/06 ,  C08K5/05

摘要： [Problem] To provide an adhesive composition which is used for fixing a semiconductor wafer or the like onto a substrate, exhibits firm adhesion with high heat resistance in the wafer grinding stage and is melted by heating to enable easy peeling after the completion of the wafer grinding stage. [Means to solve problem] The hot-melt adhesive composition of the invention is a composition containing as a main component a crystalline compound having a melting temperature of 50 to 300° C., and has a melting temperature width of not more than 30° C. and a melt viscosity of not more than 0.1 Pa·s. The crystalline compound as a main component is desired to be an organic compound composed of elements of C, H and O only and having a molecular weight of not more than 1000, preferably an aliphatic compound or an alicyclic compound, particularly preferably a compound having a steroid skeleton and/or a hydroxyl group.

摘要翻译： [问题]为了提供用于将半导体晶片等固定到基板上的粘合剂组合物，在晶片研磨阶段中显示出牢固的粘合性，并且通过加热熔化，从而能够在晶片完成之后容易地剥离 研磨阶段。 解决问题的手段本发明的热熔粘合剂组合物是以熔融温度为50〜300℃，熔融温度为30℃以下的结晶化合物为主要成分的组合物 C.熔体粘度不大于0.1Pa·s。 作为主要成分的结晶化合物优选仅由C，H和O元素构成，分子量不超过1000的有机化合物，优选脂族化合物或脂环族化合物，特别优选具有 类固醇骨架和/或羟基。