公开(公告)号：US5821319A

公开(公告)日：1998-10-13

申请号：US627037

申请日：1996-04-03

申请人： Atsushi Shibuya ,  Yuichi Okawa ,  Shoji Tamai ,  Masahiro Ohta ,  Akihiro Yamaguchi

发明人： Atsushi Shibuya ,  Yuichi Okawa ,  Shoji Tamai ,  Masahiro Ohta ,  Akihiro Yamaguchi

IPC分类号： C08G73/14 ,  C08L27/12 ,  C08L27/16 ,  C08L77/00 ,  C08L79/08 ,  C08G73/10 ,  C08G69/26

CPC分类号： C08L27/12 ,  C08G73/14 ,  C08L79/08 ,  C08L27/16 ,  C08L77/00 ,  Y10T428/1018 ,  Y10T428/1023 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/2969 ,  Y10T428/31504 ,  Y10T428/31721

摘要： A sliding material and a heat resistant filament which primarily comprises a liquid crystal polyimide, a liquid crystal polyamide or a liquid crystal polyamide-imide copolymer having at least one recurring structural unit selected from the formula (1) and the formula (2) and is excellent in heat resistance, mechanical characteristics and other fundamental properties of polyimides, and relates to significant improvement of heat-resistance by heat-treating the sliding material, the filament and the molded items. The liquid crystal polyamide-imide copolymer which comprises in a polymer molecule 0.05.about.0.95 mole ratio of the recurring structural units of the formula (1) and 0.95.about.0.05 mole ratio of recurring structural units of the formula (2) has excellent processing ability ##STR1##

摘要翻译： 一种滑动材料和耐热丝，其主要包括具有至少一个选自式（1）和式（2）的重复结构单元的液晶聚酰亚胺，液晶聚酰胺或液晶聚酰胺 - 酰亚胺共聚物，并且是 聚酰亚胺的耐热性，机械特性和其它基本性能优异，并且涉及通过热处理滑动材料，长丝和模制品而显着提高耐热性。 在聚合物分子中含有式（1）的重复结构单元的0.05分子量分数0.95摩尔比和式（2）的重复结构单元的0.95摩尔比的液晶聚酰胺 - 酰亚胺共聚物具有优异的加工能力， （1） （2）

公开(公告)号：US06531568B1

公开(公告)日：2003-03-11

申请号：US09762260

申请日：2001-04-09

申请人： Atsushi Shibuya ,  Tomomi Okumura ,  Hideaki Oikawa ,  Yoshihiro Sakata ,  Takashi Kuroki ,  Yuichi Okawa ,  Shoji Tamai

发明人： Atsushi Shibuya ,  Tomomi Okumura ,  Hideaki Oikawa ,  Yoshihiro Sakata ,  Takashi Kuroki ,  Yuichi Okawa ,  Shoji Tamai

IPC分类号： C08G7310

CPC分类号： C08G73/10 ,  C08G73/101

摘要： This invention provides crosslinkable-group-containing polyimides of various known thermoplastic polyimide backbone structures, which are provided with far better heat resistance, chemical resistance and mechanical properties than known polyimides of the structures without impairing excellent moldability or formability, superb sliding property, low water absorption property, outstanding electrical properties, high thermal oxidation stability and high radiation resistance, all of which are inherent to the structures.

摘要翻译： 本发明提供了各种已知的热塑性聚酰亚胺骨架结构的含交联性基团的聚酰亚胺，其具有比已知结构的聚酰亚胺更好的耐热性，耐化学性和机械性能，而不损害优异的成型性或成型性，优异的滑动性，低水 吸收性能，优异的电性能，高热氧化稳定性和高耐辐射性，所有这些都是结构固有的。

公开(公告)号：US06458912B1

公开(公告)日：2002-10-01

申请号：US09674916

申请日：2001-02-05

申请人： Takashi Kuroki ,  Yoshihiro Sakata ,  Tomomi Okumura ,  Atsushi Shibuya ,  Yuichi Okawa ,  Hideaki Oikawa ,  Kayako Yanagihara ,  Yasunori Yoshida ,  Masaji Yoshimura ,  Hiroyasu Kido ,  Shoji Tamai

发明人： Takashi Kuroki ,  Yoshihiro Sakata ,  Tomomi Okumura ,  Atsushi Shibuya ,  Yuichi Okawa ,  Hideaki Oikawa ,  Kayako Yanagihara ,  Yasunori Yoshida ,  Masaji Yoshimura ,  Hiroyasu Kido ,  Shoji Tamai

IPC分类号： C08G7300

CPC分类号： C08G73/1042 ,  C08G73/101 ,  C08G73/105

摘要： A thermoplastic polyimide having good thermal stability, comprising a repeating unit represented by the chemical formula (1), a molecular terminal being composed of the chemical formula (2) and/or chemical formula (3), characterized in that: a melt viscosity ratio calculated by the numerical formula (1) and/or the numerical formula (3) is within a numerical range shown in the numerical formula (2) and/or the numerical formula (4) and 1,3-bis(4-aminophenoxy)benzene represented by the chemical formula (3) for production of the above polyimide, characterized in that the content of an azo compound is from 0.0 to 0.2%. The thermoplastic polyimide of the present invention has excellent characteristics {circle around (1)} to {circle around (4)} described below. {circle around (1)} It is superior in thermal stability on melting. That is, the degree of lowering of the fluidity on melting with a lapse of time is small and it is possible to apply to conventional melt molding. {circle around (2)} It has high heat resistance. {circle around (3)} It is superior in productivity. {circle around (4)} It is superior in dimensional accuracy.

摘要翻译： 一种具有良好热稳定性的热塑性聚酰亚胺，其包含由化学式（1）表示的重复单元，由化学式（2）和/或化学式（3）组成的分子末端，其特征在于：熔体粘度比 由式（1）和/或数值式（3）计算的数值在数值式（2）和/或数值式（4）和1,3-双（4-氨基苯氧基） 由化学式（3）表示的用于制备上述聚酰亚胺的苯，其特征在于偶氮化合物的含量为0.0-0.2％。 本发明的热塑性聚酰亚胺具有以下所述的{圆周（1）}〜{圆周（4）}的特性。 {circle around（1）}熔融时的热稳定性优异。 也就是说，随着时间的流逝，熔融流动性的降低程度小，可以适用于常规的熔融成型。 {circle around（2）}它具有很高的耐热性。 {circle around（3）}它的生产力优越。 {circle around（4）}尺寸精度优越。

公开(公告)号：US5276133A

公开(公告)日：1994-01-04

申请号：US894346

申请日：1992-06-04

申请人： Yuichi Okawa ,  Shoji Tamai ,  Akihiro Yamaguchi

发明人： Yuichi Okawa ,  Shoji Tamai ,  Akihiro Yamaguchi

IPC分类号： C08G73/10 ,  C08G69/26

CPC分类号： C08G73/10 ,  C08G73/1014

摘要： A favorably processable polyimide which has recurring structural units represented by the formula (I): ##STR1## wherein R is a tetravalent radical having from 2 to 27 carbon atoms and is selected from the group consisting of an aliphatic radical, alicyclic radical, monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected to each other with a direct bond or a bridge member, and is blocked at the polymer chain end with aromatic dicarboxylic anhydride represented by the formula (II): ##STR2## wherein X is a divalent radical selected from the group consisting of a monoaromatic radical having from 6 to 27 carbon atoms, condensed polyaromatic radical and noncondensed aromatic radical connected to each other with a direct bond or a bridge member.

摘要翻译： 具有由式（I）表示的重复结构单元的有利的可加工聚酰亚胺：（*化学结构*）（I）其中R是具有2至27个碳原子的四价基团，并且选自脂族基团 ，脂环族基团，单芳族基团，缩合多芳族基团和非缩合芳族基团，其与直接键合或桥连构件相互连接，并且在聚合物链端用由式（II）表示的芳族二羧酸酐封闭：（* CHEMICAL 结构*）（II）其中X是选自具有6至27个碳原子的单芳族基团的二价基团，缩合的多芳族基团和未缩合的芳香基团彼此直接连接或桥接成员。

公开(公告)号：US5480965A

公开(公告)日：1996-01-02

申请号：US280551

申请日：1994-07-26

申请人： Wataru Yamashita ,  Yuichi Okawa ,  Hideaki Oikawa ,  Tadashi Asanuma ,  Yuko Ishihara ,  Mitsunori Matsuo ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi ,  Shoji Tamai

发明人： Wataru Yamashita ,  Yuichi Okawa ,  Hideaki Oikawa ,  Tadashi Asanuma ,  Yuko Ishihara ,  Mitsunori Matsuo ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi ,  Shoji Tamai

IPC分类号： C07C201/12 ,  C07C205/45 ,  C07C221/00 ,  C07C225/22 ,  C08G73/10 ,  C08G73/12 ,  C08J5/18 ,  C08L79/08 ,  C08G69/26 ,  C08L77/00

CPC分类号： C08G73/10 ,  C08G73/1007 ,  C08G73/1014 ,  C08G73/1017 ,  C08G73/1067 ,  Y10T428/31504 ,  Y10T428/31721

摘要： This invention relates to a novel thermoplastic and amorphous polyimide which is readily soluble in organic solvent, a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising the thermoplastic polyimide and a fibrous reinforcement, a process for preparing the resin composition, an injection molded article of the resin composition, a polyimide-based composite obtained by molding the above soluble and thermoplastic polyimide in combination with a fibrous reinforcement, and a fibrous reinforcement having a surface modified with the above polyimide.The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: ##STR1## wherein m and n are individually an integer of 0 or 1, and R is ##STR2## The polyimide of the invention is essentially amorphous, excellent in melt flow stability in the decreased temperature as compared with conventionally known polyimide and has greatly improved processability.The polyimide of the invention obtained by using a novel aromatic diamino compound as a monomer can control various properties such as melt flow ability and solubility in solvents by side chains and not by principal chain of polyimide. Thus, excellent melt flow property and solubility in solvents can be obtained while maintaining high heat resistance and adhesive property which are derived from benzophenone structure of the diamino compound of the the invention.

摘要翻译： 本发明涉及易溶于有机溶剂的新型热塑性和无定形聚酰亚胺，用于聚酰亚胺的新型芳族二氨基化合物及其制备方法，包含热塑性聚酰亚胺和纤维增强剂的聚酰亚胺基树脂组合物， 用于制备树脂组合物的树脂组合物的注塑制品，通过将上述可溶性和热塑性聚酰亚胺与纤维增强剂组合成型而获得的聚酰亚胺类复合材料和具有用上述聚酰亚胺改性的表面的纤维增强剂。 聚酰亚胺包含必需的结构单元，其具有一个或多个下式的重复结构单元：其中m和n分别为0或1的整数，R为本发明的聚酰亚胺基本上为 与常规已知的聚酰亚胺相比，在降低的温度下的熔体流动稳定性优异并且具有极大的改进的加工性。 通过使用新颖的芳族二氨基化合物作为单体获得的本发明的聚酰亚胺可以通过侧链而不是聚酰亚胺的主链来控制各种性能如熔体流动性和在溶剂中的溶解度。 因此，在保持由本发明的二氨基化合物的二苯甲酮结构得到的高耐热性和粘合性的同时，可以获得优异的熔体流动性和溶剂中的溶解性。

公开(公告)号：US5470943A

公开(公告)日：1995-11-28

申请号：US360584

申请日：1994-12-21

申请人： Yoshihiro Sakata ,  Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Tsutomu Ishida ,  Mitsunori Matsuo ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

发明人： Yoshihiro Sakata ,  Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Tsutomu Ishida ,  Mitsunori Matsuo ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

IPC分类号： C08G73/10 ,  C08G77/10 ,  C07D213/69 ,  C08G69/26

CPC分类号： C08G73/1039 ,  C08G73/1085

摘要： This invention relates to a novel fluorine-containing polyimide or polyimide copolymer being colorless and having transparency and very low dielectric characteristics, and has a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising the polyimide or polyimide copolymer and a fibrous reinforcement, a process for preparing the resin composition, an injection molded article of the resin composition.The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: ##STR1## wherein Ar is a tetravalent radical having 6 to 27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed polyaromatic radical having aromatic radicals connected to each other with a direct bond or a bridge member, a trifluoromethyl radical is situated at the 3- or the 4-position on a pyridine nucleus, and an imide nitrogen atom is connected at the 3- or the 4-position to an ether bond.The polyimide or polyimide copolymer has excellent heat resistance, outstanding melt-flow stability and greatly improved processability, and also is colorless and has high transparency and very low dielectric coefficient, and can be expected to be used as raw materials for electric.cndot.electronic appliances and optical instruments due to the above characteristics.

摘要翻译： 本发明涉及一种新颖的含氟聚酰亚胺或聚酰亚胺共聚物，其具有透明性和非常低的介电特性，并且具有用于聚酰亚胺的新型芳族二氨基化合物及其制备方法，该聚酰亚胺系树脂组合物含有聚酰亚胺 或聚酰亚胺共聚物和纤维增强剂，树脂组合物的制备方法，树脂组合物的注塑制品。 聚酰亚胺包含具有一个或多个下式的重复结构单元的必需结构单元：其中Ar是具有6至27个碳原子的四价基团，并且选自单芳族基团，缩合多芳族基团 具有芳族基团的自由基和非缩合多芳族基团彼此直接键合或桥接成员，三氟甲基位于吡啶核上的3-或4-位，酰亚胺氮原子连接在3 - 或4-位到醚键。 聚酰亚胺或聚酰亚胺共聚物具有优异的耐热性，优异的熔体流动稳定性和极好的加工性，并且是无色的，具有高透明度和非常低的介电系数，并且可以预期用作电气电子设备的原料 光学仪器由于上述特点。

公开(公告)号：US5508377A

公开(公告)日：1996-04-16

申请号：US357193

申请日：1994-12-13

申请人： Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Akihiro Yamaguchi

发明人： Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Akihiro Yamaguchi

IPC分类号： C08G73/10 ,  C08L79/08 ,  C08G69/26

CPC分类号： C08G73/1085 ,  C08G73/10 ,  C08G73/1039 ,  C08G73/105 ,  C08G73/1053 ,  C08G73/1071 ,  C08L79/08

摘要： This invention relates to a novel polyimide or polyimide copolymer having excellent heat resistance and greatly improved processability, and has a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising the polyimide or polyimide copolymer and a fibrous reinforcement, a process for preparing the resin composition, an injection molded article of the resin composition.The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: ##STR1## wherein L is an oxygen atom, carbonyl, isopropylidene or hexafluoroisopropylidene, and X is ##STR2## and Ar is a tetravalent radical having 6 to 27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed polyaromatic radical having aromatic radicals connected to each other with a direct bond or a bridge member.The polyimide or polyimide copolymer is outstanding in melt-flow stability, and has greatly improved processability and excellent heat resistance. Consequently, the polyimide or polyimide copolymer can be applied to structural materials, and electic.cndot.electronic appliances.

摘要翻译： 本发明涉及耐热性优异且加工性极佳的新型聚酰亚胺或聚酰亚胺共聚物，具有用于聚酰亚胺的新型芳族二氨基化合物及其制备方法，包含聚酰亚胺或聚酰亚胺共聚物的聚酰亚胺系树脂组合物和 纤维增强材料，树脂组合物的制备方法，树脂组合物的注塑制品。 聚酰亚胺包括具有一个或多个下式的重复结构单元的必需结构单元：其中L是氧原子，羰基，异亚丙基或六氟异亚丙基，X是（5）和Ar 是具有6至27个碳原子的四价基团，并且选自具有芳族基团的单芳族基团，缩合多芳族基团和具有直接键合或桥连构件彼此连接的非缩合多芳族基团。 聚酰亚胺或聚酰亚胺共聚物在熔体流动稳定性方面是突出的，并且具有极大的改进的加工性和优异的耐热性。 因此，聚酰亚胺或聚酰亚胺共聚物可以应用于结构材料和电子电器。

公开(公告)号：US5484880A

公开(公告)日：1996-01-16

申请号：US354806

申请日：1994-12-13

申请人： Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Mitsunori Matsuo ,  Tsutomu Ishida ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

发明人： Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Mitsunori Matsuo ,  Tsutomu Ishida ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

IPC分类号： C07C225/22 ,  C07B61/00 ,  C07C221/00 ,  C08G73/10 ,  C08L79/08 ,  C08G77/10 ,  C08G69/26

CPC分类号： C08G73/1071 ,  C08G73/1014 ,  C08G73/105 ,  C08G73/1064 ,  C08L79/08

摘要： The present invention relates to an amorphous polyimide or a polyimide copolymer having a requisite structural unit consisting of one or more recurring structural units represented by the formula (1): ##STR1## wherein X is a direct bond, oxygen atom or sulfur atom, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are individually a hydrogen atom or methyl, and Ar is a tetravalent radical having 6 to 27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed polyaromatic radical having aromatic radicals connected to each other with a direct bond or a bridge member.Polyimide and the polyimide copolymer of the invention has excellent heat resistance, is outstanding in melt-flow stability, has greatly improved processability, and can be applied to structural materials, and electric- electronic appliances.

摘要翻译： 本发明涉及具有必要结构单元的无定形聚酰亚胺或聚酰亚胺共聚物，所述结构单元由一个或多个由式（1）表示的重复结构单元：原子或硫原子组成，并且R 1，R 2，R 3和R 4分别为 氢原子或甲基，Ar是具有6至27个碳原子的四价基团，并且选自具有芳族基团的单芳族基团，缩合多芳族基团和具有直接键或桥键的彼此连接的非缩合多芳族基团 会员。 本发明的聚酰亚胺和聚酰亚胺共聚物具有优异的耐热性，熔体流动稳定性优异，加工性能大大提高，可应用于结构材料和电子电器。

公开(公告)号：US5260388A

公开(公告)日：1993-11-09

申请号：US894940

申请日：1992-06-08

申请人： Shoji Tamai ,  Wataru Yamashita ,  Yuichi Okawa ,  Yuko Ishihara ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

发明人： Shoji Tamai ,  Wataru Yamashita ,  Yuichi Okawa ,  Yuko Ishihara ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

IPC分类号： C07C225/22 ,  C08G73/10 ,  C08G73/14 ,  C08G8/02 ,  C08G69/26

CPC分类号： C07C225/22 ,  C08G73/1014 ,  C08G73/1017 ,  C08G73/1039 ,  C08G73/1067 ,  C08G73/14

摘要： A heat-resistant and thermoplastic polyimide which has low dielectric characteristics and recurring structural units of the following formula ##STR1## wherein R is a tetravalent radical having from 2 to 27 carbon atoms and selected from the group consisting of an aliphatic radical, alicyclic radical, monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member; aromatic diamines which are useful for the raw material monomers of the polyimide and have following formulas: ##STR2## and ##STR3## and a process for preparing the polyimide of the above formula by reacting these aromatic diamines with a tetracarboxylic dianhydride in the presence of an aromatic dicarboxylic anhydride or aromatic monoamine, and successively thermally or chemically imidizing the resultant polyamic acid.

公开(公告)号：US5506291A

公开(公告)日：1996-04-09

申请号：US321750

申请日：1994-10-12

申请人： Yuichi Okawa ,  Yoshihiro Sakata ,  Wataru Yamashita ,  Katsuaki Iiyama ,  Shoji Tamai ,  Akihiro Yamaguchi

发明人： Yuichi Okawa ,  Yoshihiro Sakata ,  Wataru Yamashita ,  Katsuaki Iiyama ,  Shoji Tamai ,  Akihiro Yamaguchi

IPC分类号： C08G73/10 ,  C08L79/08

CPC分类号： C08G73/105 ,  C08G73/1014 ,  C08G73/1017 ,  C08L79/08

摘要： A fatigue-resistant polyimide resin composition comprising 100 parts by weight of polyimide having from 0.5 (exclusive) to 1.0 (inclusive) mole ratio of recurring structural units represented by the formula (1) and from 0 (inclusive) to 0.5 (exclusive) mole ratio of recurring structural units represented by the formula (2): ##STR1## wherein X is ##STR2## in the formulas (1) and (2), and having an inherent viscosity of 0.45 dl/g or more; and 5.about.65 parts by weight of a carbon fiber, glass fiber, aromatic polyamide fiber and/or potassium titanate fiber, and an injection molded article having a high fatigue resistance.

摘要翻译： 一种耐疲劳聚酰亚胺树脂组合物，其包含100重量份由式（1）表示的重复结构单元的摩尔比为0.5（排斥）至1.0（含）摩尔比）和0（含） （2）表示的重复结构单元的摩尔比为0.5（独占）：式（1）和（2）中的X为，其特性粘度为0.45dl / g以上; 和5重量份65重量份的碳纤维，玻璃纤维，芳香族聚酰胺纤维和/或钛酸钾纤维，以及具有高耐疲劳性的注塑制品。