1.
    发明专利
    未知

    公开(公告)号:DE60223646D1

    公开(公告)日:2008-01-03

    申请号:DE60223646

    申请日:2002-03-27

    Abstract: The present invention relates to an epoxy resin composition consisting of components (a), (b) and (c) defined below, wherein the amount of component (c) based on 100 parts by weight of component (a) is 1 to 30 parts by weight; component (a) is liquid; and components (b) and (c) are homogeneously dissolved in component (a): (a) epoxy resin, (b) anionic polymerization initiator, and (c) proton donor. The present invention also relates to a process for producing fiber-reinforced composite material where a thermosetting resin composition is injected into reinforcing fiber substrates placed in a mold maintained at a specific temperature Tm between 60 to 180 DEG C, and heated to cure in a mold at Tm, such that the following conditions (7) to (9) are satisfied: ti ≤ 10 tm ≤ 60 1 wherein, ti is time from the beginning of injection to the termination of injection (min.), and tm is time from the beginning of injection to the beginning of the demolding (min.) The resent invention produces high Vf fiber-reinforced composite materials with good productivity.

    2.
    发明专利
    未知

    公开(公告)号:DE60217542T2

    公开(公告)日:2007-10-25

    申请号:DE60217542

    申请日:2002-11-06

    Abstract: The present invention relates to an epoxy resin composition for fiber reinforced composite material comprising the following components (1) - (3) as essential components, their mixing ratios meeting the following conditions (I) - (IV), and component (3) being dissolved homogeneously: component (1): epoxy resin that is liquid at room temperature, component (2): aromatic polyamine that is liquid at room temperature, component (3): diaminodiphenylsulfone, condition (I): The proportion of component (1) relative to the entire epoxy resin in the composition is 60-100 wt%, condition (II): The sum of the proportions of components (2) and (3) relative to the entire polyamine in the composition is 70-100 wt%, condition (III): The proportion of component (3) relative to the entire polyamine in the composition is 25-60 wt%, and condition (IV): The stoichiometric ratio of the entire polyamine to the entire epoxy resin in the composition is 0.7-1.3. Another embodiment of the invention relates to an epoxy resin composition for fiber reinforced composite material that contains at least the following components (4) - (6), forms a cured product with a theoretical molecular weight between crosslinking points in the range of 250-350 g/mol, and has an initial viscosity at 80 DEG C of 1-500 MPa.s: (4): aromatic epoxy resin with tri- or higher functionality, (5): aromatic epoxy resin with di- or higher and lower than tri-functionality, and (6): aromatic polyamine, the molecular weight between crosslinking points being defined as the weight of the entire cured epoxy resin divided by the number of crosslinking points contained in the entire cured epoxy resin. The invention also relates to an epoxy resin composition for fiber reinforced composite material that consists of the following components (7) and (8): (7) a polyglycidyl ether of phenol aralkyl resin as represented by the following formula: where R , R , R and R denote a hydrogen atom, an alkyl group having 1-8 carbon atoms, or a halogen atom, and m and n denote an integer of 1-4 and a real number of 0 or more and less than 1, respectively, and (8) polyamine. With the constitution described above, the present invention can provide a liquid epoxy resin composition for low cost production of high performance fiber reinforced composite material, that has a low viscosity at relatively low temperatures, and that after being cured, the cured product is high in glass transition temperature, elastic modulus and toughness while being small in the glass temperature decrease caused by water absorption and also small in the coefficient of linear expansion; and can provide a method to produce fiber reinforced composite material therefrom. Fiber reinforced composite material produced according to the present invention can serve as material for parts of aircraft, including main wing, tail, rotor blade, fairing, cowl, and door; parts of spacecraft, including motor case and main wing; and parts of space satellite body structure. They can also be used preferably as material for automobile chassis and railroad vehicle body structure.

    Epoxy resin compositions for fiber-reinforced composite materials, process for production of the materials and fiber-reinforced composite materials

    公开(公告)号:AU2002344461B2

    公开(公告)日:2007-07-12

    申请号:AU2002344461

    申请日:2002-11-06

    Abstract: The present invention relates to an epoxy resin composition for fiber reinforced composite material comprising the following components (1) - (3) as essential components, their mixing ratios meeting the following conditions (I) - (IV), and component (3) being dissolved homogeneously: component (1): epoxy resin that is liquid at room temperature, component (2): aromatic polyamine that is liquid at room temperature, component (3): diaminodiphenylsulfone, condition (I): The proportion of component (1) relative to the entire epoxy resin in the composition is 60-100 wt%, condition (II): The sum of the proportions of components (2) and (3) relative to the entire polyamine in the composition is 70-100 wt%, condition (III): The proportion of component (3) relative to the entire polyamine in the composition is 25-60 wt%, and condition (IV): The stoichiometric ratio of the entire polyamine to the entire epoxy resin in the composition is 0.7-1.3. Another embodiment of the invention relates to an epoxy resin composition for fiber reinforced composite material that contains at least the following components (4) - (6), forms a cured product with a theoretical molecular weight between crosslinking points in the range of 250-350 g/mol, and has an initial viscosity at 80 DEG C of 1-500 MPa.s: (4): aromatic epoxy resin with tri- or higher functionality, (5): aromatic epoxy resin with di- or higher and lower than tri-functionality, and (6): aromatic polyamine, the molecular weight between crosslinking points being defined as the weight of the entire cured epoxy resin divided by the number of crosslinking points contained in the entire cured epoxy resin. The invention also relates to an epoxy resin composition for fiber reinforced composite material that consists of the following components (7) and (8): (7) a polyglycidyl ether of phenol aralkyl resin as represented by the following formula: where R , R , R and R denote a hydrogen atom, an alkyl group having 1-8 carbon atoms, or a halogen atom, and m and n denote an integer of 1-4 and a real number of 0 or more and less than 1, respectively, and (8) polyamine. With the constitution described above, the present invention can provide a liquid epoxy resin composition for low cost production of high performance fiber reinforced composite material, that has a low viscosity at relatively low temperatures, and that after being cured, the cured product is high in glass transition temperature, elastic modulus and toughness while being small in the glass temperature decrease caused by water absorption and also small in the coefficient of linear expansion; and can provide a method to produce fiber reinforced composite material therefrom. Fiber reinforced composite material produced according to the present invention can serve as material for parts of aircraft, including main wing, tail, rotor blade, fairing, cowl, and door; parts of spacecraft, including motor case and main wing; and parts of space satellite body structure. They can also be used preferably as material for automobile chassis and railroad vehicle body structure.

    7.
    发明专利
    未知

    公开(公告)号:DE60217405T2

    公开(公告)日:2007-11-29

    申请号:DE60217405

    申请日:2002-06-26

    Abstract: The present invention relates to an epoxy resin composition comprising at least (A) an epoxy resin having a cycloalkane ring or cyclohexene ring but having neither aromatic ring nor aminic nitrogen atom, (B) a carboxylic anhydride having no aromatic ring, and (C) an ultraviolet absorbent, wherein a content of component (A) is from 70 to 100 percents by weight based on the total weight of epoxy resins, and a content of component (B) is from 70 to 100 percents by weight based on the total weight of carboxylic anhydrides. By this constitution, the present invention can provide an epoxy resin composition whose cured product excels in mechanical properties and weatherability, and a fiber reinforced composite material having excellent mechanical properties and weatherability.

    Uso de una composición de resina epoxi para material reforzado con fibra y su producción

    公开(公告)号:ES2688496T3

    公开(公告)日:2018-11-02

    申请号:ES07741563

    申请日:2007-04-13

    Abstract: Un uso de una composicion de resina epoxi para producir un material compuesto reforzado con fibra, comprendiendo la composicion una resina epoxi [A], un agente de curado anhidrido de acido [B] y un compuesto de fosforo organico [C] en el que uno o mas grupos aromaticos estan directamente unidos a un atomo de fosforo, en donde dicho compuesto de fosforo organico [C] esta contenido en una cantidad del 0,2 al 2 % en peso en terminos de una cantidad contenida de un atomo de fosforo con respecto a la suma de dicha composicion de resina epoxi, una cantidad de un compuesto que contiene un atomo de nitrogeno contenido en dicha composicion de resina epoxi es del 0 al 0,5 % en peso en terminos de una cantidad contenida de un atomo de nitrogeno con respecto a la suma de dicha composicion de resina epoxi, y una cantidad de un compuesto que tiene un grupo insaturado polimerizable contenido en dicha composicion de resina epoxi es del 0 al 5 % en peso con respecto a la suma de dicha composicion de resina epoxi.

    9.
    发明专利
    未知

    公开(公告)号:DE60217542D1

    公开(公告)日:2007-02-22

    申请号:DE60217542

    申请日:2002-11-06

    Abstract: The present invention relates to an epoxy resin composition for fiber reinforced composite material comprising the following components (1) - (3) as essential components, their mixing ratios meeting the following conditions (I) - (IV), and component (3) being dissolved homogeneously: component (1): epoxy resin that is liquid at room temperature, component (2): aromatic polyamine that is liquid at room temperature, component (3): diaminodiphenylsulfone, condition (I): The proportion of component (1) relative to the entire epoxy resin in the composition is 60-100 wt%, condition (II): The sum of the proportions of components (2) and (3) relative to the entire polyamine in the composition is 70-100 wt%, condition (III): The proportion of component (3) relative to the entire polyamine in the composition is 25-60 wt%, and condition (IV): The stoichiometric ratio of the entire polyamine to the entire epoxy resin in the composition is 0.7-1.3. Another embodiment of the invention relates to an epoxy resin composition for fiber reinforced composite material that contains at least the following components (4) - (6), forms a cured product with a theoretical molecular weight between crosslinking points in the range of 250-350 g/mol, and has an initial viscosity at 80 DEG C of 1-500 MPa.s: (4): aromatic epoxy resin with tri- or higher functionality, (5): aromatic epoxy resin with di- or higher and lower than tri-functionality, and (6): aromatic polyamine, the molecular weight between crosslinking points being defined as the weight of the entire cured epoxy resin divided by the number of crosslinking points contained in the entire cured epoxy resin. The invention also relates to an epoxy resin composition for fiber reinforced composite material that consists of the following components (7) and (8): (7) a polyglycidyl ether of phenol aralkyl resin as represented by the following formula: where R , R , R and R denote a hydrogen atom, an alkyl group having 1-8 carbon atoms, or a halogen atom, and m and n denote an integer of 1-4 and a real number of 0 or more and less than 1, respectively, and (8) polyamine. With the constitution described above, the present invention can provide a liquid epoxy resin composition for low cost production of high performance fiber reinforced composite material, that has a low viscosity at relatively low temperatures, and that after being cured, the cured product is high in glass transition temperature, elastic modulus and toughness while being small in the glass temperature decrease caused by water absorption and also small in the coefficient of linear expansion; and can provide a method to produce fiber reinforced composite material therefrom. Fiber reinforced composite material produced according to the present invention can serve as material for parts of aircraft, including main wing, tail, rotor blade, fairing, cowl, and door; parts of spacecraft, including motor case and main wing; and parts of space satellite body structure. They can also be used preferably as material for automobile chassis and railroad vehicle body structure.

    10.
    发明专利
    未知

    公开(公告)号:DE60217405D1

    公开(公告)日:2007-02-15

    申请号:DE60217405

    申请日:2002-06-26

    Abstract: The present invention relates to an epoxy resin composition comprising at least (A) an epoxy resin having a cycloalkane ring or cyclohexene ring but having neither aromatic ring nor aminic nitrogen atom, (B) a carboxylic anhydride having no aromatic ring, and (C) an ultraviolet absorbent, wherein a content of component (A) is from 70 to 100 percents by weight based on the total weight of epoxy resins, and a content of component (B) is from 70 to 100 percents by weight based on the total weight of carboxylic anhydrides. By this constitution, the present invention can provide an epoxy resin composition whose cured product excels in mechanical properties and weatherability, and a fiber reinforced composite material having excellent mechanical properties and weatherability.

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