公开(公告)号：EP1731553A4

公开(公告)日：2012-01-25

申请号：EP05719460

申请日：2005-02-24

Applicant: TORAY INDUSTRIES

Inventor： HONDA SHIRO ,  SAWAOKA RYUJI ,  NAKAHARA KOYOMI

IPC: C08J5/24 ,  B32B5/28 ,  C08G59/50 ,  C08K3/02 ,  C08K3/32 ,  C08K5/49 ,  C08K5/523 ,  C08K7/06 ,  C08K9/10 ,  C08L63/00 ,  C09C1/00

CPC classification number: C08K5/523 ,  B32B5/26 ,  B32B27/08 ,  B32B27/38 ,  B32B2250/02 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/106 ,  B32B2439/00 ,  B32B2457/00 ,  C01P2004/61 ,  C01P2004/62 ,  C08G59/50 ,  C08G59/5006 ,  C08G59/5033 ,  C08J5/24 ,  C08K3/02 ,  C08K7/06 ,  C08K9/02 ,  C08K2003/026 ,  C09C1/00 ,  Y10T428/1362 ,  Y10T428/1372 ,  Y10T428/24994 ,  Y10T428/24995 ,  Y10T428/249952 ,  Y10T428/25 ,  Y10T428/263 ,  Y10T428/269 ,  Y10T428/31511 ,  C08L63/00

Abstract: The present invention provides a light-weight fiber-reinforced composite material that has excellent flame retardance and mechanical properties and never emits a halogen gas. The present invention also provides a prepreg and en epoxy resin composition suited to obtain the above described fiber-reinforced composite material. The present invention also provides an integrated molding which is produced using the above described fiber-reinforced composite material, thereby suitable for use in electric/electronic casings. The epoxy resin composition is such that it contains the following components [A], [B] and [C]: [A] epoxy resin, [B] amine curing agent, and [C] phosphorus compound, wherein the concentration of the component [C] is 0.2 to 15% by weight in terms of phosphorus atom concentration.

公开(公告)号：JP2002212320A

公开(公告)日：2002-07-31

申请号：JP2001014221

申请日：2001-01-23

Applicant: TORAY INDUSTRIES

Inventor： KISHI HAJIME ,  NINOMIYA HIROAKI ,  SAWAOKA RYUJI

IPC: F17C3/00 ,  C08J5/24 ,  C08L63/00 ,  C08L101/00

Abstract: PROBLEM TO BE SOLVED: To provide a prepreg that can be suitably used to produce very low temperature tanks which are resistant to crack occurrence even under the very low temperature environment and has excellent strength properties, for example, compressive strength, and provide very low temperature tanks of high quality. SOLUTION: The objective prepreg is produced by impregnating carbon fibers with an epoxy resin composition including [A] at least one selected from tri-functional epoxy resin or tetra-functional epoxy resin, [B] bi-functional epoxy resin and a curing agent. The resin composition includes 5-40 pts.wt. of the component [A] and 60-95 pts.wt. of the component [B] based on 100 pts.wt. of the whole epoxy resins and the cured product thereof has the glass transition point of >=150 deg.C, when heated at 180 deg.C for two hours.

公开(公告)号：JP2000344870A

公开(公告)日：2000-12-12

申请号：JP15480399

申请日：1999-06-02

Applicant: TORAY INDUSTRIES

Inventor： SAWAOKA RYUJI ,  OOSETO HIROKI

IPC: C08J5/24 ,  C08G59/56

Abstract: PROBLEM TO BE SOLVED: To provide an epoxy resin composition which can be a matrix resin excellent in heat resistance and adhesive properties and can make compression strength and impact resistance compatible even at high temperature and humidity by compounding an epoxy resin with an aromatic polyamine and a compound which has a specific partial chemical structure and a functional group reactive with the epoxy resin or the aromatic polyamin. SOLUTION: This resin composition contains an epoxy resin, an aromatic polyamine, and a compound which has at least one kind of partial structure selected from among those represented by formulas I, II, III, and IV and has at least one functional group reactive with the epoxy resin or the aromatic polyamine, that is, a functional group selected from among carboxyl, phenolic hydroxyl, amino, sec-amino, and mercapto groups and a double bond in conjugation with a carbonyl group. The amount of the compound compounded is 0.5-30 pts.wt. based on 100 pts.wt. epoxy resin. Preferably, the composition gives a cured item having a glass transition point of 160-250 deg.C, a tensile elongation of 8% or higher, and a flexural modulus of 3.2 GPa or higher.

公开(公告)号：JPH11172076A

公开(公告)日：1999-06-29

申请号：JP33728797

申请日：1997-12-08

Applicant: TORAY INDUSTRIES

Inventor： OOSETO HIROKI ,  NODA SHUNSAKU ,  SAWAOKA RYUJI

IPC: C08J5/04 ,  C07F7/18 ,  C08G59/44 ,  C08J5/24 ,  C08L63/00

Abstract: PROBLEM TO BE SOLVED: To obtain a compsn. excellent in toughness and elastic modulus by incorporating an epoxy resin and a curing agent into the same and specifying the energy release rate and bending modulus of the cured compsn. each to a specified value or higher. SOLUTION: This compsn. contains 100 pts.wt. epoxy esin, a curing agent (e.g. dicyandiamide), a cure accelerator (e.g. a urea deriv. or an imidazole deriv.), 1-20 pts.wt. particulate toughening agent (e.g. core-shell rubber particles) having an average particle size of 10 μm or lower, and 1-20 pts.wt. thermoplastic resin (e.g. a polyvinyl acetal resin) having hydrogen-bond-formig functional groups and gives a cured article of which the energy release rate G1c after 2-hr curing at 130 deg.C is 600 J/m or higher and the bending modulus is 3.1 MPaG or higher. A high-mol.-wt. bisphenol epoxy resin having an epoxy equivalent of 450 or higher is used as the epoxy resin, and at least one epoxy resin selected from among resins of formulas I to III accounts for 10-70 wt.% of the epoxy resin. In the formulas, R to R , R and R are each H, halogen, or 1-8C alkyl.

公开(公告)号：JP2002088259A

公开(公告)日：2002-03-27

申请号：JP2000282100

申请日：2000-09-18

Applicant: TORAY INDUSTRIES

Inventor： WADAHARA EISUKE ,  ISHIBASHI SOICHI ,  SAWAOKA RYUJI ,  OHARA HARUO

IPC: C08J5/00 ,  B29B9/02 ,  B29B11/16 ,  C08K7/02 ,  C08L101/00

Abstract: PROBLEM TO BE SOLVED: To provide a molding material which can obtain a molded article having well-balanced mechanical properties, particularly impact strength and rigidity and, in addition, has excellent moldability, particularly flowability on molding and high productivity as well, its manufacturing method, and a molded article to be obtained therefrom. SOLUTION: The molding material comprises at least reinforcing fibers and two types of resins (A) and (B), and the resin (A) forms its domain in the matrix of the resin (B) and, simultaneously, has an islands-sea structure having a domain diameter of 0.4-15 mm. Further, the method for manufacturing the molding material comprises previously opening reinforcing fibers, preheating them, and impregnating the bundle of the reinforcing fibers with the resin (A) to form a composite of the reinforcing fibers with the resin (A), then coating the above composite with at least resin (B), and subsequently taking up the coated composite at a rate of >=10 m/min.

公开(公告)号：JPH1036532A

公开(公告)日：1998-02-10

申请号：JP19205796

申请日：1996-07-22

Applicant: TORAY INDUSTRIES

Inventor： SAWAOKA RYUJI ,  OOSETO HIROKI

IPC: C08J5/24 ,  C01B33/44 ,  C08G59/44 ,  C08K7/00 ,  C08L19/00 ,  C08L21/00 ,  C08L63/00 ,  C08L101/00

Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition for a fiber-reinforced composite material that renders high compression strength and bending strength to the fiber- reinforced composite material by impregnating a fibrous base for the composite material with a thermosetting resin and lamellar clay mineral the interlayers of which contains organic cations. SOLUTION: This resin composition for a fiber-reinforced composite material comprises (A) a thermosetting resin (preferably an epoxy resin) and (B) a lamellar clay mineral the interlayers of which contains organic cations preferably in a ratio of 3-15 pts.wt. of component (B) to 100 pts.wt. of component (A). The preferable organic cation of component (B) is a tertiary ammonium ion of the formula (R1 -R3 are each a 1-30C alkyl, aralkyl, etc.), such as dodecyltrimethyl ammonium ion. The preferable lamellar clay mineral is montmorillonite or hectrite. Component (B) is obtained, for example, by dispersing a lamellar clay mineral containing metal ions into water, adding an organic ammonium salt into the dispersion, and mixing well the dispersion. The particle size of the lamellar clay mineral is preferably 0.05-1μm.

公开(公告)号：JPH07304968A

公开(公告)日：1995-11-21

申请号：JP4547095

申请日：1995-03-06

Applicant: TORAY INDUSTRIES

Inventor： SAWAOKA RYUJI ,  KAWACHI SHINJI ,  MURAKI TOSHIO

IPC: B29B11/16 ,  B01J13/12 ,  C08G59/18 ,  C08G59/50 ,  C08G73/00 ,  C08J5/24 ,  C08L101/00

Abstract: PURPOSE:To obtain the agent which has good room-temperature storage stability and can provide a thermosetting resin composition and a prepreg excellent in heat resistance after being cured by coating a curing agent with a specified resin. CONSTITUTION:This agent essentially consists of a curing agent (A) for a thermosetting resin and a thermoplastic resin (B) soluble in the thermosetting resin when heated, is in the form of particles each of which is composed of component A, and a layer mainly made from component B and coating component A and has an average particle diameter of 0.1-20mum. It is desirable that both of components A and B are insoluble in water and soluble in a hydrophobic organic solvent having a boiling point of 100 deg.C or below. Particularly desirable examples of component A include an aromatic amide, an imidazole compound and an imidazole compound/ glycidyl compound adduct. This agent is obtained by dissolving components A and B in an organic solvent, emulsifying the solution in water, and removing the organic solvent from the emulsion.

公开(公告)号：JPH07228716A

公开(公告)日：1995-08-29

申请号：JP2037794

申请日：1994-02-17

Applicant: TORAY INDUSTRIES

Inventor： SAWAOKA RYUJI ,  NODA SHUNSAKU ,  MURAKI TOSHIO ,  TAKAGISHI HIROYUKI

IPC: B29B11/16 ,  B29B15/10 ,  C08G59/14 ,  C08G59/50 ,  C08J5/04 ,  C08J5/24 ,  C08L63/00

Abstract: PURPOSE:To prepare a prepreg, having excellent storage stability and other properties, which can provide a composite material having excellent impact strength. CONSTITUTION:A carbon fiber having a tensile elongation of not less than 1.7% is impregnated with a bisphenol A epoxy resin having an epoxy equivalent of 140 to 250 and/or a resin compsn., having a viscosity at 80 deg.C of 20 to 300 P, comprising, as indispensable ingredients, a mixture A of a bisphenol F epoxy resin A1 having an epoxy equivalent 140 to 250 and a bisphenol A epoxy resin A2 having an epoxy equivalent of 350 to 1000 in a A1 to A2 wt. ratio of 0.3 to 3, a reaction product B between a liquid butadiene/acrylonitrile copolymer, having a carboxyl group on its both molecular ends and an acrylonitrile content of 10 to 30wt.%, and an epoxy resin Al, and a dicyandiamide and/or curing accelerator C.

公开(公告)号：JP2001098175A

公开(公告)日：2001-04-10

申请号：JP27887899

申请日：1999-09-30

Applicant: TORAY INDUSTRIES

Inventor： MIYOSHI NAOMI ,  SAWAOKA RYUJI ,  OOSETO HIROKI

IPC: C08J5/24 ,  C08K7/02 ,  C08L31/02 ,  C08L33/06 ,  C08L51/00 ,  C08L63/10 ,  C08L67/06 ,  C08L101/00 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To obtain a thermosetting resin composition capable of providing a cured product having a high level of toughness and a fiber-reinforced composite material comprising the thermosetting resin composition. SOLUTION: This thermosetting resin composition is a resin composition comprising the following constituent elements (A), (B) and (C) and the ratio of numbers of mol of the constituent elements (A) to (B) is within a specified range. (A) a thermosetting resin having plural polymerizable unsaturated bonds in the molecule, (B) a compound having one polymerizable unsaturated bond in the molecule and (C) polymer microparticles containing a rubber and substantially insoluble in a liquid resin composition prepared by mixing the constituent elements (A) with (B). The ratio of the numbers of mol of the constituent elements (A) to (B) is within the range of (1:5) to (1:18).

公开(公告)号：JP2000327749A

公开(公告)日：2000-11-28

申请号：JP13812099

申请日：1999-05-19

Applicant: TORAY INDUSTRIES

Inventor： OOSETO HIROKI ,  SAWAOKA RYUJI ,  MIYOSHI NAOMI

IPC: C08J5/24 ,  C08G59/40 ,  C08K3/00 ,  C08K5/00 ,  C08K7/00 ,  C08L63/00

Abstract: PROBLEM TO BE SOLVED: To obtain an epoxy resin composition for a fiber-reinforced composite material of which cured material becomes a matrix resin excellent in adhesion with reinforcing fibers, a prepreg obtained by using the above composition and a fiber-reinforced composite material obtained by using the prepreg, excellent in various physical characteristics. SOLUTION: This epoxy resin composition contains (A) an epoxy resin, (B) a curing agent containing plural active hydrogens in its molecule and (C) a compound having one functional group capable of reacting with the (B) the curing agent having active hydrogens in its molecule to form a coordinate bond and a partial structure shown by any of the below-cited general formulae I to IV and 0.5-0.98 remaining ratio R (the remaining ratio R is defined as the remaining ratio of the constituting element C obtained by dissolving the constituting element C and morpholine in dimethylsulfoxide so as to become 1.0 mo/l each and reacting at 70 deg.C for 4 hr.). Formula I: -CO-N PO-N