公开(公告)号：JPH11107687A

公开(公告)日：1999-04-20

申请号：JP26626397

申请日：1997-09-30

Applicant: TORAY INDUSTRIES ,  TORAY DU PONT KK

Inventor： KAMAISHI TADAMI ,  TSUNODA ATSUSHI

IPC: E21D11/04 ,  C04B41/60 ,  C08L23/04 ,  C08L23/10 ,  C08L29/04 ,  C08L31/00 ,  C08L33/20 ,  C08L67/00 ,  C08L77/00 ,  C08L81/02 ,  C09J4/00 ,  C09J167/06 ,  E04G23/02

Abstract: PROBLEM TO BE SOLVED: To obtain strong adhesion in a short time, and to prevent deterioration and falling from a wall surface by bonding and covering the steep-gradient wall surface between chambers in a tunnel with a sheet-shaped reinforcing layer by a cold radical reaction resin cured article and compounding the reinforcing layer and the cured article. SOLUTION: When a sheet-shaped article is compounded with a wall surface containing sections having gradients of 45-315 deg., the foundation adjustment, primer coating and unevenness correction of the wall surface are conducted. The wall surface is coated with an adhesive, the sheet-shaped article is stuck, and an impregnant is applied and cured. When the sheet-shaped article is compounded, processes after the coating of the adhesive are repeated. A thixotropic-property imparting material is added to the adhesive and impregnant layer, and a composite sheet-shaped article is pasted and impregnation into the sheet is reinforced. An acrylic acid ester, a vinyl ester, etc., are used as a cold radical reaction resin. A fibrous article such as a carbon fibers, an aramid rein, etc., and the sheet-shaped article, etc., such as a metal, glass, etc., are employed as the reinforcing material of the resin.

公开(公告)号：JPH05239885A

公开(公告)日：1993-09-17

申请号：JP4348192

申请日：1992-02-28

Applicant: TORAY INDUSTRIES

Inventor： TSUNODA ATSUSHI ,  MIZUGUCHI TOYOKAZU

IPC: E04C5/07

Abstract: PURPOSE:To manufacture easily a reinforcing bar having greater fixing force against concrete, etc. CONSTITUTION:A foamable resin layer having an FRP core body formed as a unit on the surface thereof and having projections and recesses of 0.5-1mm in an average height is provided to a reinforcing bar. Unsolidified thermosetting resin including a foaming agent having 0.5-10wt.% is applied to the surface of the FRP core body so that it is 0.1-1m in thickness, it is heated to foam the foaming agent and, at the same time, the thermosetting resin is solidified, or unsolidified thermosetting resin including a foaming agent having 0.5-10wt.% is so applied to the surface of the core body constituted of reinforced fiber and unsolidified thermosetting resin that it is 0.1-1mm. In addition, it is heated to foam the foaming agent and, at the same time, a reinforcing fiber is manufactured by solidifying the applied thermosetting resin and the thermosetting resin of the core body at a time.

公开(公告)号：JPH05132824A

公开(公告)日：1993-05-28

申请号：JP29896491

申请日：1991-11-14

Applicant: TORAY INDUSTRIES

Inventor： ENDO MAKOTO ,  NARITA ISAO ,  TSUNODA ATSUSHI

IPC: D01F9/22 ,  D01F9/32

Abstract: PURPOSE:To obtain the subject uniform yarn through mass baking by making precursor fibers travel through a relevant oven by a specific conveying means. CONSTITUTION:A set of conveyors 2 (2-1 to 2-3) to allow precursor fibers 4 travel in a hot air-circulating oven 3 for making the fibers resistant to flame is made up from conveyor belts bridged over rollers 7-1, 7-2. The inside of the conveyor belts is connected to a suction means for gas and the belts are made passable to air, and a high-temperature oxidative gas is ensured to pass from the outside to inside of the belts by the suction means.

公开(公告)号：JPH04300328A

公开(公告)日：1992-10-23

申请号：JP6475891

申请日：1991-03-28

Applicant: TORAY INDUSTRIES

Inventor： ENDO MAKOTO ,  TSUNODA ATSUSHI

IPC: D01F9/22 ,  D01F9/32 ,  D02J13/00

Abstract: PURPOSE:To carry out flameproofing treatment of thick yarn, etc., in a short time by sucking a highly oxidative gas from the surface of flameproofing rollers while keeping the ratio of the pressure loss coefficient of the flameproofing rollers to that of precursor fiber yarn constant. CONSTITUTION:Precursor fiber yarn is brought into contact with plural flameproofing rollers and flameproofed. In the process, a high-temperature oxidizing gas is sucked from the surfaces of the flameproofing rollers to the inside of the rollers while keeping the ratio of the pressure loss coefficient of the flameproofing rollers to that of the precursor fiber yarn at 0.3-3.0 and the precursor fiber yarn (part thereof) is brought into contact with the surfaces of the flameproofing rollers and flameproofed. The resultant flameproofed yarn is then carbonized to afford the objective carbon fiber.

公开(公告)号：JPH03294582A

公开(公告)日：1991-12-25

申请号：JP9835690

申请日：1990-04-13

Applicant: TORAY INDUSTRIES

Inventor： TAKAI TOSHIAKI ,  SUZUKI ATSUSHI ,  TSUNODA ATSUSHI

IPC: D06M15/59 ,  D06M101/00 ,  D06M101/40

Abstract: PURPOSE:To obtain the title carbon fiber capable of giving excellent processability and physical properties through composite formation with heat- resistant matrix resin as reinforcing fiber by sizing carbon fiber with an aromatic polyamide-imide copolymer made up of specific structural units. CONSTITUTION:Firstly, a sizing agent consisting of an aromatic polyamide-imide copolymer made up of (A) structural unit of formula I (Z is trifunctional aromatic group with two functional groups bound to adjacent carbon atoms), (B) structural unit of formula II (Ar is aryl; R1 is 1-4C alkyl; b is 0-2; x is 1-500) and (C) structural unit of formula III with the molar ratios (B+C)/A = (1:1) and C/B=[(0.95-0):(0.05-1)] and the respective units linked alternately, is dissolved in an organic solvent. Thence, carbon fiber is immersed in the resulting solution, thus obtaining the objective sized carbon fiber. When composite formation is made using the present fiber with esp. a heat-resistant matrix resin, an excellent composite material with excellent processability and physical properties can be obtained.

公开(公告)号：JPH02251609A

公开(公告)日：1990-10-09

申请号：JP7309089

申请日：1989-03-23

Applicant: TORAY INDUSTRIES

Inventor： ONO KEIZO ,  TSUNODA ATSUSHI

IPC: D01F6/18 ,  D01F6/54 ,  D01F9/22

Abstract: PURPOSE:To obtain the title yarn providing graphite yarn showing extremely high modulus of elasticity at a lower temperature, comprising a copolymer consisting essentially of a specific ratio of acrylonitrile and a specific ratio of flame resistance promoting component. CONSTITUTION:The objective yarn which comprises a copolymer consisting essentially of 85wt.% acrylonitrile and 0.1-4wt.% flame resistance promoting component (e.g. acrylic acid) and contains 0.05 to 3wt.% calculated as boron of boron-containing particles. The yarn, for example, is obtained by uniformly blending a solution of the copolymer in a solvent with a dispersion of boron- containing particles pulverized by a grinding-type mill into the same solvent while stirring to prepare a polymer solution containing dispersed boron- containing particles and making the solution into yarn by a well-known method. Ultrafine particles having

公开(公告)号：JPH0214013A

公开(公告)日：1990-01-18

申请号：JP16416988

申请日：1988-06-30

Applicant: TORAY INDUSTRIES

Inventor： KOBAYASHI MAKOTO ,  OHARA HARUO ,  TSUNODA ATSUSHI

IPC: C08F220/44 ,  C08F30/08 ,  C08F220/42 ,  C08F230/08 ,  D01F6/18 ,  D01F6/38 ,  D01F9/22

Abstract: PURPOSE:To obtain the title fiber composed of a silicon-containing polymerizable unsaturated monomer and acrylonitrile each contained at specific ratios and capable of efficiently producing a high-quality and high-performance carbon fiber also in a case of flameproofing time shortened. CONSTITUTION:The aimed fiber consisting of a copolymer of (A) 0.1-10% silicon- containing polymerizable unsaturated monomer and (B) >=85% acrylonitrile. Furthermore, as the component A, a polymer containing a siloxane bond of methacryloxypropylnonamethyltetrasiloxane, etc., is preferably used from the view point of oxygen permeability. Further, preferably a polymerizable unsaturated monomer for promoting flameproofing reaction of acrylic acid, etc., is added to the copolymer constituting the above-mentioned fiber and copolymerized with the copolymer in order to further shorten flameproofing time.

公开(公告)号：JPH01192825A

公开(公告)日：1989-08-02

申请号：JP947388

申请日：1988-01-21

Applicant: TORAY INDUSTRIES

Inventor： AKIMOTO TATSUO ,  OGASAWARA MASASHI ,  TSUNODA ATSUSHI

IPC: D02J13/00 ,  D01F9/14 ,  D01F9/32

Abstract: PURPOSE:To perform uniform heat-treatment of fiber even by using a fluidized layer having low height, by fluidizing heat-medium particles deposited on a dispersion plate with gas blasted through the holes of the dispersion plate, and passing a number of precursor fibers through the fluidized layer in a specific arrangement. CONSTITUTION:Heat-medium particles are deposited on dispersion plates 8, 8' in a flame-resistant treatment furnace 1 and are fluidized by oxidizing gas blasted upward through the holes of the dispersion plates 8, 8'. A group of precursor fibers 101 is continuously passed through the obtained fluidized layer to effect the flame-resistant treatment of the fiber 101. In the above apparatus for the flame-resistant treatment, the precursor fibers are vertically arranged into plural sections and placed at a height of 5-500mm from the dispersion plates 8, 8' by guiding means 41, 42, 43, 44 and, at the same time, heating means 6, 7 are placed in a gas channel before the oxidizing gas enters into the fluidized layer.

公开(公告)号：JPS6476670A

公开(公告)日：1989-03-22

申请号：JP23141487

申请日：1987-09-16

Applicant: TORAY INDUSTRIES

Inventor： MIWA KISHIO ,  FUKUI HIROAKI ,  TSUNODA ATSUSHI

IPC: H01M4/88 ,  H01M4/96

Abstract: PURPOSE:To improve the processing efficiency by laminating multiple units each using an electrode substrate for a positive electrode and a negative electrode, bringing each electrode substrate into contact with an electrolyte, and applying the desired electricity quantity between both electrode substrates. CONSTITUTION:In (n) laminated cell units 71-7n, the feed pipe 1a and discharge pipe 2a of an electrolyte are connected to a pipeline system with an electrolyte tank 8 and a circulating pump 9 for a positive electrode so that individual cell units are arranged in parallel. The desired electricity quantity is applied between the electrode substrates 4a, 4b while the electrolyte of the electrolyte tanks 8, 10 is circulated in contact with the electrode substrates 4a, 4b of each cell unit. The electricity quantity to be applied is about 10-1000C per carbon fiber 1g.

公开(公告)号：JPS6467873A

公开(公告)日：1989-03-14

申请号：JP22678187

申请日：1987-09-08

Applicant: TORAY INDUSTRIES

Inventor： TSUNODA ATSUSHI ,  MIWA KISHIO ,  FUKUI HIROAKI

IPC: H01M4/96 ,  H01M8/18

Abstract: PURPOSE:To obtain an electrode material with little hydrogen generated at the time of a charge and high current efficiency and high cell conductivity by using carbon fibers with the relative integrated intensity of the nitrogen element/carbon element determined by the ESCA surface analysis and the specific resistance specified. CONSTITUTION:Carbon fibers with the relative integrated intensity of the nitrogen element/carbon element determined by the ESCA surface analysis of at least 0.04 and the specific resistance of 2X10 OMEGA.cm or less are used as the electrode material of a redox flow battery. The carbon fibers with such surface characteristic are obtained by the electrolysis processing in the aqueous solution of ammonia or the like using carbon fibers as a positive electrode or the plasma processing in the atmosphere of ammonia or the like, for example. The introduced nitrogen elements exist on the surfaces of carbon fibers as the amino amide group, and the deoxidation reaction is accelerated by such carbon fiber electrode. The generation of hydrogen gas on a negative electrode at the time of a charge is thereby suppressed, and the current efficiency and electric conductivity can be improved.