公开(公告)号：US5043419A

公开(公告)日：1991-08-27

申请号：US261520

申请日：1988-10-24

申请人： Masahiro Ohta ,  Saburo Kawashima ,  Shoji Tamai ,  Hideaki Oikawa ,  Akihiro Yamaguchi ,  Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Misao Masuda ,  Satoru Kishi ,  Chiaki Maruko

发明人： Masahiro Ohta ,  Saburo Kawashima ,  Shoji Tamai ,  Hideaki Oikawa ,  Akihiro Yamaguchi ,  Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Misao Masuda ,  Satoru Kishi ,  Chiaki Maruko

IPC分类号： C08G73/10 ,  C08K7/04 ,  C08L79/08

CPC分类号： C08K7/04 ,  C08G73/1014 ,  C08G73/105 ,  C08G73/1064 ,  C08L79/08

摘要： This invention relates to a method for preparing a polyimide having good heat-stability and excellent flowability in a molten state.The polymide is prepared by reacting aromatic diamines such as 4,4'-bis(3-aminophenoxy)biphenyl, bis[4-(3-aminophenoxy)phenyl] ketone and bis [4-(3-aminophenoxy)phenyl] sulfone; tetracarboxylic dianhydrides such as pyromellitic dianhydride, 3,3', 4,4'-benzophenonetetracarboxylic dianhydride and bis(3,4-dicarboxyphenyl) ether dianhydride; and dicarboxylic anhydrides such as glutaric anhydride, 1,2-hexanedicarboxylic anhydride, phthalic anhydride and 3,4-benzophenonedicarboxylic anhydride. The molar ratio of aromatic diamine: tetracarboxylic dianhydride: dicarboxylic anhydride is 1:(0.9 to 1.0):(0.001 to 1.0).The invention also relates to polyimide composite materials which are excellent in mechanical strengths and processability. The materials contain the polyimide and fibrous reinforcing materials such as yarn, roving, tow, fabrics, mats and felts of glass fiber, carbon fibers or aromatic polyamide fibers.

公开(公告)号：US5013817A

公开(公告)日：1991-05-07

申请号：US266678

申请日：1988-11-03

申请人： Masahiro Ohta ,  Saburo Kawashima ,  Shoji Tamai ,  Hideaki Oikawa ,  Akihiro Yamaguchi ,  Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Misao Masuda ,  Satoru Kishi ,  Chiaki Maruko

发明人： Masahiro Ohta ,  Saburo Kawashima ,  Shoji Tamai ,  Hideaki Oikawa ,  Akihiro Yamaguchi ,  Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Misao Masuda ,  Satoru Kishi ,  Chiaki Maruko

IPC分类号： C08G73/10

CPC分类号： C08G73/105 ,  C08G73/1017

摘要： The invention relates to processes for preparing a polyimide, a polyimide composition prepared by the processes and polyimide composite materials containing the same.

公开(公告)号：US06613423B1

公开(公告)日：2003-09-02

申请号：US08169621

申请日：1993-12-20

申请人： Hideo Sakai ,  Toshiyuki Nakakura ,  Tomohito Koba ,  Misao Masuda ,  Chiaki Maruko ,  Satoru Kishi

发明人： Hideo Sakai ,  Toshiyuki Nakakura ,  Tomohito Koba ,  Misao Masuda ,  Chiaki Maruko ,  Satoru Kishi

IPC分类号： B32B2712

CPC分类号： B29C70/345 ,  B29C51/02 ,  B29C51/145 ,  B29L2031/7692 ,  Y10T428/249942 ,  Y10T428/24995

摘要： A process for preparing a molded article of fiber-reinforced plastic having an optional configuration and no tendency to deformation and cracks by using a plate material consisting essentially of a fibrous reinforcement and a thermoplastic resin, comprising the steps of previously setting-up, on the plate material and/or a mold, a sheet prepreg obtained by impregnating a unidirectionally arranged fiber or woven cloth with a thermoplastic resin in areas where the fibrous reinforcement does not follow the flow of the resin well or in areas where special reinforcement is required and successively carrying out integral molding to obtain said article; and a molded article obtained by said process.

摘要翻译： 一种制备纤维增强塑料的成型制品的方法，其具有任选的构造，并且不使用基本上由纤维增强材料和热塑性树脂组成的板材的变形和裂纹的趋势，包括以下步骤： 板材和/或模具，通过在热塑性树脂浸渍单向布置的纤维或机织布的纤维增强体不会在树脂的流动不完全的区域或需要特殊加强的区域中浸渍而获得的片材预浸料 进行整体成型以获得所述制品; 和通过所述方法获得的模塑制品。

公开(公告)号：US5201979A

公开(公告)日：1993-04-13

申请号：US841204

申请日：1992-02-27

申请人： Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Satoru Kishi ,  Chiaki Maruko

发明人： Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Satoru Kishi ,  Chiaki Maruko

IPC分类号： B29C70/50 ,  B32B31/00

CPC分类号： B29C70/504 ,  B29K2101/12 ,  B29K2105/0809 ,  B29K2105/101

摘要： Method and apparatus for manufacturing a sheet-prepreg reinforced with fibers wherein a sheet of fibers such as warp or woven fibers such as fabrics is conveyed between a pair of band belts one of which is coated with a film of thermoplastic resin which has been heated higher than its softening point to enhance resin-impregnating efficiency and prevent the impregnated resin from contacting air. Further, when the sheet of fibers or woven fibers is conveyed in this manner, the molten resin is not maintained on the manufacturing line, thereby preventing it from being deteriorated by heat. The apparatus can be thus kept under operation for a long time and the sheet-prepreg reinforced with the fibers can be made much higher in quality and the deterioration of the impregnated resin can be further delayed.

摘要翻译： 制造用纤维增强的片材预浸料的方法和装置，其中将诸如织物之类的经纱或织造纤维的纤维片材在一对带带之间输送，其中一条带带被涂覆有已经被加热的热塑性树脂膜 比其软化点提高树脂浸渍效率并防止浸渍树脂与空气接触。 此外，当以这种方式输送纤维或织造纤维时，熔融树脂不会保持在生产线上，从而防止其被热损坏。 因此，该设备可以长期保持运行，并且可以使用纤维增强的片材预浸料的质量高得多，并且可以进一步延迟浸渍树脂的劣化。

公开(公告)号：US5445701A

公开(公告)日：1995-08-29

申请号：US268718

申请日：1994-06-30

申请人： Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Satoru Kishi ,  Chiaki Maruko

发明人： Tomohito Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Satoru Kishi ,  Chiaki Maruko

IPC分类号： B29C70/50 ,  B29C70/16 ,  B29C70/20 ,  B29D9/00 ,  B29K105/10

CPC分类号： B29C70/504 ,  B29K2101/12 ,  B29K2105/0809 ,  B29K2105/101

摘要： Method and apparatus for manufacturing a sheet-prepreg reinforced with fibers wherein a sheet of fibers such as warp or woven fibers such as fabrics is conveyed between a pair of band belts one of which is coated with a film of thermoplastic resin which has been heated higher than its softening point to enhance resin-impregnating efficiency and prevent the impregnated resin from contacting air. Further, when the sheet of fibers or woven fibers is conveyed in this manner, the molten resin is not maintained on the manufacturing line, thereby preventing it from being deteriorated by heat. The apparatus can be thus kept under operation for a long time and the sheet-prepreg reinforced with the fibers can be made much higher in quality and the deterioration of the impregnated resin can be further delayed.

摘要翻译： 制造用纤维增强的片材预浸料的方法和装置，其中将诸如织物之类的经纱或织造纤维的纤维片材在一对带带之间输送，其中一条带带被涂覆有已经被加热的热塑性树脂膜 比其软化点提高树脂浸渍效率并防止浸渍树脂与空气接触。 此外，当以这种方式输送纤维或织造纤维时，熔融树脂不会保持在生产线上，从而防止其被热损坏。 因此，该设备可以长期保持运行，并且可以使用纤维增强的片材预浸料的质量高得多，并且可以进一步延迟浸渍树脂的劣化。

公开(公告)号：US5294394A

公开(公告)日：1994-03-15

申请号：US584167

申请日：1990-09-18

申请人： Hideo Sakai ,  Toshiyuki Nakakura ,  Kaba Tomohito ,  Misao Masuda ,  Chiaki Maruko ,  Satoru Kishi

发明人： Hideo Sakai ,  Toshiyuki Nakakura ,  Kaba Tomohito ,  Misao Masuda ,  Chiaki Maruko ,  Satoru Kishi

IPC分类号： B29C43/18 ,  B29C51/02 ,  B29C51/14 ,  B29C70/34 ,  B29K105/06 ,  B29C67/14

CPC分类号： B29C70/345 ,  B29C51/02 ,  B29C51/145 ,  B29L2031/7692 ,  Y10T428/249942 ,  Y10T428/24995

摘要： A process for preparing a molded article of fiber-reinforced plastic having an optional configuration and no tendency to deformation and cracks by using a plate material including a fibrous reinforcement and a thermoplastic resin, including the steps of previously setting-up, on the plate material and/or a mold, a sheet prepreg obtained by impregnating a unidirectionally arranged fiber or woven cloth with a thermoplastic resin in areas where the fibrous reinforcement does not follow the flow of the resin well or in areas where special reinforcement is required and successively carrying out integral molding to obtain said article; and a molded article obtained by the process.

摘要翻译： 一种制备纤维增强塑料的成型制品的方法，其具有任选的构造，并且通过使用包括纤维增强材料和热塑性树脂的板材，不会发生变形和裂纹的倾向，包括在板材上预先安装的步骤 和/或模具，通过在热塑性树脂浸渍单向排列的纤维或织布的纤维增强材料不会沿着树脂流动的区域或在需要特殊加固的区域中浸渍而获得的片材预浸料，并且依次进行 一体成型获得所述制品; 和通过该方法获得的成型品。

公开(公告)号：US5532054A

公开(公告)日：1996-07-02

申请号：US307031

申请日：1994-09-16

申请人： Tomohita Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Misao Masuda ,  Satoru Kishi ,  Chiaki Maruko

发明人： Tomohita Koba ,  Toshiyuki Nakakura ,  Hideo Sakai ,  Misao Masuda ,  Satoru Kishi ,  Chiaki Maruko

IPC分类号： B29B9/14 ,  B29B15/12 ,  B29C70/14 ,  D04H1/00

CPC分类号： B29B15/122 ,  B29B9/14 ,  B29C70/14 ,  B29K2307/00 ,  B29K2309/08 ,  Y10T428/249945 ,  Y10T428/249946 ,  Y10T428/26 ,  Y10T428/2904 ,  Y10T428/2918 ,  Y10T428/2933 ,  Y10T428/2938 ,  Y10T428/2964 ,  Y10T428/2971 ,  Y10T428/298 ,  Y10T428/2982 ,  Y10T428/2996 ,  Y10T428/2998

摘要： A molding material shaped like a plate and comprising a composite of continuous fibers and thermoplastic resin wherein each of the filaments which form the continuous fiber is coated around the surface thereof with the thermoplastic resin. Although the molding material has a high density of reinforcing fibers therein, it provides excellent distribution of fibers in the molding process; few of its fibers are broken, and its mechanical strength is considerably enhanced when its specific surface is made larger than a certain value. This molding material can be used for injection, extrusion and compression moldings.

摘要翻译： 一种成形为板状的成型材料，包括连续纤维和热塑性树脂的复合材料，其中形成连续纤维的每根长丝在其表面上涂覆有热塑性树脂。 虽然模塑材料在其中具有高密度的增强纤维，但是其在模制过程中提供了优异的纤维分布; 很少的纤维被破坏，并且当其比表面大于一定值时，其机械强度显着提高。 该成型材料可用于注射，挤出和压缩模塑。