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公开(公告)号：DE69733387T2
公开(公告)日：2006-04-27
申请号：DE69733387
申请日：1997-02-21
Applicant: TORAY INDUSTRIES
Inventor： KISHI HAJIME , TOKUNOH MASAZUMI , KYONO TETSUYUKI , NOMA FUMIAKI , MINAKUCHI TOYOKAZU , YAMANE SHOJI
IPC: C08J5/24 , B29B15/12 , B29C70/50 , C04B26/14 , C04B32/02 , C08G59/36 , C08G59/38 , C08G59/50 , C08J5/04 , C08L21/00 , C08L63/00
Abstract: To provide an epoxy resin composition suitable as a matrix resin for fiber reinforcement, and a yarn prepreg suitable in unwindability, excellent in higher processability due to drapability, high in the tensile strength of the epoxy resin composition after curing, and high in efficiency of the strength of reinforcing fibers. A yarn prepreg, satisfying the following formulae (1) to (3): where Wf is the content by weight of the fiber bundle (%), F is the number of filaments in the fiber bundle and d is the width of the prepreg (mm). An epoxy resin composition for a fiber reinforced composite material, comprising at least the following components ÄAÜ, ÄBÜ and ÄCÜ: ÄAÜ: An epoxy resin mixture containing two or more epoxy resins, in such a manner that 100 weight parts of the epoxy resin mixture contains 40 to 79 parts of a monofunctional or bifunctional epoxy resin and 21 to 60 parts of a trifunctional or higher functional epoxy resin and that the epoxy resin mixture is 210 to 370 in epoxy equivalent weight ÄBÜ: Fine particles containing a rubber ingredient and insoluble in the epoxy resins ÄCÜ: A curing agent
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公开(公告)号：DE69733387D1
公开(公告)日：2005-07-07
申请号：DE69733387
申请日：1997-02-21
Applicant: TORAY INDUSTRIES
Inventor： KISHI HAJIME , TOKUNOH MASAZUMI , KYONO TETSUYUKI , NOMA FUMIAKI , MINAKUCHI TOYOKAZU , YAMANE SHOJI
IPC: B29B15/12 , C04B26/14 , C08G59/36 , C08G59/38 , C08J5/24 , C08J5/04 , B29C70/50 , C08G59/50 , C08L21/00 , C08L63/00 , C04B32/02
Abstract: To provide an epoxy resin composition suitable as a matrix resin for fiber reinforcement, and a yarn prepreg suitable in unwindability, excellent in higher processability due to drapability, high in the tensile strength of the epoxy resin composition after curing, and high in efficiency of the strength of reinforcing fibers. A yarn prepreg, satisfying the following formulae (1) to (3): where Wf is the content by weight of the fiber bundle (%), F is the number of filaments in the fiber bundle and d is the width of the prepreg (mm). An epoxy resin composition for a fiber reinforced composite material, comprising at least the following components ÄAÜ, ÄBÜ and ÄCÜ: ÄAÜ: An epoxy resin mixture containing two or more epoxy resins, in such a manner that 100 weight parts of the epoxy resin mixture contains 40 to 79 parts of a monofunctional or bifunctional epoxy resin and 21 to 60 parts of a trifunctional or higher functional epoxy resin and that the epoxy resin mixture is 210 to 370 in epoxy equivalent weight ÄBÜ: Fine particles containing a rubber ingredient and insoluble in the epoxy resins ÄCÜ: A curing agent
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公开(公告)号：ES2243977T3
公开(公告)日：2005-12-01
申请号：ES97904610
申请日：1997-02-21
Applicant: TORAY INDUSTRIES
Inventor： KISHI HAJIME , TOKUNOH MASAZUMI , KYONO TETSUYUKI , NOMA FUMIAKI , MINAKUCHI TOYOKAZU , YAMANE SHOJI
IPC: B29B15/12 , C04B26/14 , C08G59/36 , C08G59/38 , C08J5/24 , C08J5/04 , B29C70/50 , C08G59/50 , C08L21/00 , C08L63/00 , C04B32/02
Abstract: LA INVENCION PROPORCIONA UNA COMPOSICION DE RESINA EPOXI, ADECUADA COMO MATRIZ DE RESINA PARA REFUERZO CON FIBRAS Y UN PREIMPREGNADO DE HEBRA, ADECUADO PARA DESENRROLLABILIDAD, EXCELENTE EN CUANTO A SU ELEVADA PROCESABILIDAD, DEBIDA A SU MOVILIDAD, CON UNA ELEVADA RESISTENCIA A LA TRACCION DE LA COMPOSICION DE RESINA EPOXI TRAS SU CURACION Y ELEVADA EN CUANTO A EFICIENCIA DE LA RESISTENCIA ORIGINADA POR LA RESISTENCIA DE LAS FIBRAS DE REFUERZO. SE DESCRIBE UN PREIMPREGNADO DE HEBRA, QUE SATISFACE LAS SIGUIENTES FORMULAS (1) A (3): DONDE WF ES EL CONTENIDO EN PESO DEL HAZ DE FIBRAS (%), F ES EL NUMERO DE FILAMENTOS DEL HAZ DE FIBRAS Y D ES LA ANCHURA DEL PREIMPREGNADO (MM). SE PRESENTA ASIMISMO UNA COMPOSICION DE RESINA EPOXI PARA UN MATERIAL COMPUESTO REFORZADO CON FIBRAS, QUE COMPRENDE AL MENOS LOS SIGUIENTES COMPONENTES [A], [B] Y [C]: [A]: UNA MEZCLA DE RESINA EPOXI, QUE CONTIENE DOS O MAS RESINAS EPOXI, DE TAL FORMA QUE 100 PARTES EN PESO DE LA MEZCLA CONTIENEN ENTRE 40 Y 79 PARTES DE UNA RESINA EPOXI MONOFUNCIONAL O BIFUNCIONAL, Y ENTRE 21 Y 60 PARTES DE UNA RESINA EPOXI TRIFUNCIONAL O DE FUNCIONALIDAD SUPERIOR, Y TENIENDO LA MEZCLA DE RESINA EPOXI ENTRE 210 Y 370 DE PESO EPOXI EQUIVALENTE. [B]: PARTICULAS FINAS QUE CONTIENEN UN INGREDIENTE DE CAUCHO Y SON INSOLUBLES EN LAS RESINAS EPOXI. [C]: UN AGENTE CURANTE.
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公开(公告)号：AT296851T
公开(公告)日：2005-06-15
申请号：AT97904610
申请日：1997-02-21
Applicant: TORAY INDUSTRIES
Inventor： KISHI HAJIME , TOKUNOH MASAZUMI , KYONO TETSUYUKI , NOMA FUMIAKI , MINAKUCHI TOYOKAZU , YAMANE SHOJI
IPC: B29B15/12 , C04B26/14 , C08G59/36 , C08G59/38 , C08J5/24 , C08J5/04 , B29C70/50 , C08G59/50 , C08L21/00 , C08L63/00 , C04B32/02
Abstract: To provide an epoxy resin composition suitable as a matrix resin for fiber reinforcement, and a yarn prepreg suitable in unwindability, excellent in higher processability due to drapability, high in the tensile strength of the epoxy resin composition after curing, and high in efficiency of the strength of reinforcing fibers. A yarn prepreg, satisfying the following formulae (1) to (3): where Wf is the content by weight of the fiber bundle (%), F is the number of filaments in the fiber bundle and d is the width of the prepreg (mm). An epoxy resin composition for a fiber reinforced composite material, comprising at least the following components ÄAÜ, ÄBÜ and ÄCÜ: ÄAÜ: An epoxy resin mixture containing two or more epoxy resins, in such a manner that 100 weight parts of the epoxy resin mixture contains 40 to 79 parts of a monofunctional or bifunctional epoxy resin and 21 to 60 parts of a trifunctional or higher functional epoxy resin and that the epoxy resin mixture is 210 to 370 in epoxy equivalent weight ÄBÜ: Fine particles containing a rubber ingredient and insoluble in the epoxy resins ÄCÜ: A curing agent
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公开(公告)号：DE69723965T2
公开(公告)日：2004-02-12
申请号：DE69723965
申请日：1997-12-16
Applicant: TORAY INDUSTRIES
Inventor： NAGATA HIDEO , ODAGIRI NOBUYUKI , TERASHITA TAKESHI , KISHI HAJIME , YAMANE SHOJI
Abstract: The present invention relates to a carbon fiber prepreg. The carbon fiber prepreg of the present invention is characterized in that a carbon fiber bundle comprising a plurality of continuous carbon filaments and having a hook drop value of 10 cm or more as the degree of fiber entanglement is impregnated with a base resin mainly composed of a thermosetting resin, and that particles of 150 mu m or less in particle size made of a thermoplastic resin account for 20 wt% or less based on the weight of the entire prepreg and distributed at a higher concentration in the surface zone than in the inside. The carbon fiber prepreg of the present invention is good in tackiness and less changing in tackiness with the lapse of time, and can form a composite with an excellent compression interlaminar shear strength (CILS) at high temperature after moisture absorption while maintaining good impact resistance. It also allows the production of a composite very higher than the conventional composite in the compressive strength (LCS) of a cross laminated panel. The carbon fiber prepreg of the present invention can be preferably used as a structural member in such areas as aerospace area, sporting area and civil engineering and architecture area.
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Patent Agency Ranking
公开(公告)号：DE3685480D1
公开(公告)日：1992-07-02
申请号：DE3685480
申请日：1986-11-12
Applicant: TORAY INDUSTRIES
Inventor： YAMANE SHOJI , HIGUCHI TOMITAKE , YAMASAKI KATSUMI
Abstract: A process of producing carbon fibers, which comprises oxidizing polyacrylonitrile filaments having a tensile strength at 240°C of 0.3 g/d or higher and a tensile modulus at 240°C of 2.0 g/d or higher in an oxidizing atmosphere under a high tension of 0.2 g/d or higher, and carbonizing the oxidized filaments under a high tension.In accordance with the present invention, improvements in tensile strength and tensile modulus can be achieved.
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公开(公告)号：DE69723965D1
公开(公告)日：2003-09-11
申请号：DE69723965
申请日：1997-12-16
Applicant: TORAY INDUSTRIES
Inventor： NAGATA HIDEO , ODAGIRI NOBUYUKI , TERASHITA TAKESHI , KISHI HAJIME , YAMANE SHOJI
Abstract: The present invention relates to a carbon fiber prepreg. The carbon fiber prepreg of the present invention is characterized in that a carbon fiber bundle comprising a plurality of continuous carbon filaments and having a hook drop value of 10 cm or more as the degree of fiber entanglement is impregnated with a base resin mainly composed of a thermosetting resin, and that particles of 150 mu m or less in particle size made of a thermoplastic resin account for 20 wt% or less based on the weight of the entire prepreg and distributed at a higher concentration in the surface zone than in the inside. The carbon fiber prepreg of the present invention is good in tackiness and less changing in tackiness with the lapse of time, and can form a composite with an excellent compression interlaminar shear strength (CILS) at high temperature after moisture absorption while maintaining good impact resistance. It also allows the production of a composite very higher than the conventional composite in the compressive strength (LCS) of a cross laminated panel. The carbon fiber prepreg of the present invention can be preferably used as a structural member in such areas as aerospace area, sporting area and civil engineering and architecture area.
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公开(公告)号：CA2218723A1
公开(公告)日：1997-08-28
申请号：CA2218723
申请日：1997-02-21
Applicant: TORAY INDUSTRIES
Inventor： KISHI HAJIME , TOKUNOH MASAZUMI , KYONO TETSUYUKI , YAMANE SHOJI , MINAKUCHI TOYOKAZU , NOMA FUMIAKI
Abstract: An epoxy resin composition suitable as a matrix resin for fiber reinforcement; and a yarn prepreg which has an excellent high-order processability by virtue of suitable unwindability and drapeability and a high degree of development of tensile strength and reinforced fiber strength after the curing of the epoxy resin. The yarn prepreg is characterized in that the weight content Wf (%) of fiber bundles, the number F of filaments in the fiber bundles, and the prepreg width d (mm) satisfy the following relationships: (1) 50 Wf 80; (2) 20000 F 100000; (3) F/8000 d F/2400. The epoxy resin composition comprises the following components: ¢A! an epoxy resin blend having an epoxy equivalent of 210 to 370, comprising a mono- or difunctional epoxy resin and a tri- or higher polyfunctional epoxy resin in respective particular amounts; ¢B! fine particles which contain a rubber component and are insoluble in the epoxy resins; and ¢C! a curing agent.
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公开(公告)号：EP0885704A4
公开(公告)日：1999-02-17
申请号：EP97947964
申请日：1997-12-16
Applicant: TORAY INDUSTRIES
Inventor： NAGATA HIDEO , ODAGIRI NOBUYUKI , TERASHITA TAKESHI , KISHI HAJIME , YAMANE SHOJI
CPC classification number: C08J5/24 , B29B15/105 , B29K2307/00 , C08J2363/00 , C08J2477/00 , C08J2481/06 , C08L63/00 , Y10T428/24994 , Y10T428/254 , Y10T428/30 , Y10T428/31511 , Y10T428/31551 , C08L81/00
Abstract: The present invention relates to a carbon fiber prepreg. The carbon fiber prepreg of the present invention is characterized in that a carbon fiber bundle comprising a plurality of continuous carbon filaments and having a hook drop value of 10 cm or more as the degree of fiber entanglement is impregnated with a base resin mainly composed of a thermosetting resin, and that particles of 150 mu m or less in particle size made of a thermoplastic resin account for 20 wt% or less based on the weight of the entire prepreg and distributed at a higher concentration in the surface zone than in the inside. The carbon fiber prepreg of the present invention is good in tackiness and less changing in tackiness with the lapse of time, and can form a composite with an excellent compression interlaminar shear strength (CILS) at high temperature after moisture absorption while maintaining good impact resistance. It also allows the production of a composite very higher than the conventional composite in the compressive strength (LCS) of a cross laminated panel. The carbon fiber prepreg of the present invention can be preferably used as a structural member in such areas as aerospace area, sporting area and civil engineering and architecture area.
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公开(公告)号：JP2000079614A
公开(公告)日：2000-03-21
申请号：JP19461899
申请日：1999-07-08
Applicant: TORAY INDUSTRIES
Inventor： FUKUI HIROAKI , YAMANE SHOJI , NAKABAYASHI TOSHIHARU
Abstract: PROBLEM TO BE SOLVED: To provide a tow prepreg package wherein there exists no bending and twisting and fluffing on the end part of a tow prepreg is little when the tow prepreg is opened and which exhibits high strength when it is used for a fiber-reinforced plastic. SOLUTION: A tow prepreg package which is a package wherein a tow prepreg prepd. by impregnating a reinforcing fiber bundle with a resin is wound on a core bobbin and wherein the ridge angle of the tow prepreg is in the range of 2-20 deg. and fluctuation of the width of the tow prepreg is at most 1 mm and a method for preparing it is provided.
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