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公开(公告)号：JPH01282330A
公开(公告)日：1989-11-14
申请号：JP11402088
申请日：1988-05-10
Applicant: TORAY INDUSTRIES
Inventor： MATSUMOTO TADAYUKI , AKIMOTO TATSUO , OGASAWARA MASASHI
Abstract: PURPOSE:To increase a ratio of infusibilization and obtain a carbon fiber with a ready handling at a low cost by spinning a pitch so as to have a finess lower than a specified value, accommodating the resultant staples in a vessel, infusibilize the staples and then calcining the staples in an inert atmosphere. CONSTITUTION:A pitch is initially spun preferably using the flash spinning, etc., so as to have a finess lower than 0.33 denier and formed into staples. The resultant staples are then accommodated in a vessel and infusibilized or infusibilized in an oxidative atmosphere in a fluidized state. The infusibilized fiber is subsequently calcined in an inert atmosphere to provide the objective fiber. In case of infusibilization of the staples in a vessel, a vessel made of stainless is preferably used as the vessel and the vessel accommodating the pitch is preferably subjected to oxidation treatment in an oxidative liquid followed by treatment thereof in an oxidative gas. As the method for infusibilizing the pitch fiber in a fluidized state, an oxidative gas is preferably blown in the fluidizing zone equipped under a spinning machine while allowing the pitch fiber to fall to the zone.
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公开(公告)号：JPH01282316A
公开(公告)日：1989-11-14
申请号：JP11400488
申请日：1988-05-10
Applicant: TORAY INDUSTRIES
Inventor： MATSUMOTO TADAYUKI , KOMATSU SHIGENORI , OGASAWARA MASASHI
Abstract: PURPOSE:To obtain the subject high-tenacity and high elastic modulus carbon fiber having no crack by discharging a pitch with optical anisotropy through slit-shaped nozzle holes, subsequently through other nozzle holes with a circular cross section and then carrying out infusibilizing and graphitization treatment. CONSTITUTION:A pitch with optical anisotropy is initially discharged through nozzle holes 9 with a slit-shaped cross section and then through other nozzle holes 10 with a substantially circular cross section of a sectional area eta that of the above mentioned slit-shaped nozzle holes equipped in succession from the above mentioned slit-shaped nozzle holes after reducing the flow of the pitch. The resultant pitch yarn is subsequently subjected to infusibilization treatment and calcined, thus obtaining the objective carbon fiber with a circular cross section and composed of a fine structure where lamellas spread to the outside through an adjacent boundary reaching the fiber surface.
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公开(公告)号：JPH01260022A
公开(公告)日：1989-10-17
申请号：JP8397388
申请日：1988-04-07
Applicant: TORAY INDUSTRIES
Inventor： AKIMOTO TATSUO , OGASAWARA MASASHI , TAKADA TAKASHI
Abstract: PURPOSE:To efficiently obtain at a low cost the title fiber having extra-ordinarily reinforcing effect on hydraulic inorganic products, useful as a fiber alternative to asbestos, by heating a precursor fiber in a fluidized bed with heating medium granules fluidized by a sulfur-contg. gas. CONSTITUTION:A precursor fiber (pref., a fiber produced from an acrylic polymer 2-5 in polymerization degree) is heated in a fluidized bed with heating medium granules fluidized by a sulfur-contg. gas to impart said fiber with flame resistance and chemically bind the sulfur component in said gas to said fiber to sulfurize the precursor fiber, thus obtaining the objective fiber. Said heating medium granules is, e.g., alumina beads, pref. being near spherical and
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公开(公告)号：JPH01260021A
公开(公告)日：1989-10-17
申请号：JP7799688
申请日：1988-04-01
Applicant: TORAY INDUSTRIES
Inventor： AKIMOTO TATSUO , OGASAWARA MASASHI , NISHIMURA AKIRA
Abstract: PURPOSE:To readily obtain a carbon fiber cloth excellent in mechanical characteristics, by forming precursor fibers into a fabric shape, heating the resultant fibrous material in a fluidized bed formed by heating medium particles with an oxidizing gas, flameproofing the fabric material and carbonizing the flameproofed fabric material in an inert gas atmosphere. CONSTITUTION:Precursor fibers are woven or knitted into a sheetlike or cylindrical form to provide a fabric material 101, which is then passed through a fluidized bed heating flameproofing furnace 1 and subjected to flameproofing treatment under a prescribed tension to afford a flameproofed fabric material 102. The resultant fabric material is carbonized in a carbonization furnace 2 to provide a carbon fiber cloth. A fluidized bed 5 of heating medium particles is formed on a dispersion plate 8 in the flameproofing furnace 1 and fluidized with the oxidizing gas fed through a feed hole 9 and passed through the dispersion plate 8 to discharge a gas after fluidizing from a gas discharged hole 10.
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公开(公告)号：JPS6477662A
公开(公告)日：1989-03-23
申请号：JP23063587
申请日：1987-09-14
Applicant: TORAY INDUSTRIES
Inventor： SEKIDO SHUNEI , OGASAWARA MASASHI
Abstract: PURPOSE: To simultaneously obtain two large-sized three-dimensional fiber structures with a relatively small-sized apparatus by placing tension-applying devices on both sides of a loom driving apparatus and moving the carrier of the loom driving apparatus to weave two three-dimensional woven products at the same time. CONSTITUTION: A fiber 1 for weaving is extended between a loom driving apparatus 2 and a tension applying device 11 under the application of a prescribed tension. Carriers are orderly arranged in the longitudinal and lateral directions in the loom driving apparatus. The tension applying device 11 is positioned relative to the loom driving apparatus 2 in a state to constantly apply a tension to the weaving fiber 1. The carriers are moved in longitudinal and lateral directions with driving apparatuses 41, 42, 43... to obtain two three- dimensional woven products 8 at the same time.
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Patent Agency Ranking
公开(公告)号：JPS63282366A
公开(公告)日：1988-11-18
申请号：JP9615987
申请日：1987-04-21
Applicant: TORAY INDUSTRIES
Inventor： OGASAWARA MASASHI , HAYASHI MIKIO , KITAMURA ATSUSHI
IPC: C25D5/54 , D06M11/00 , D06M11/83 , D06M101/00 , D06M101/40
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公开(公告)号：JPS6375107A
公开(公告)日：1988-04-05
申请号：JP21927586
申请日：1986-09-19
Applicant: TORAY INDUSTRIES
Inventor： YAMAGUCHI SHIN , OGASAWARA MASASHI , MORIKI KATSUICHI
IPC: D01D5/36
Abstract: PURPOSE:To produce a spinneret device, having three elements of respective special structures on a spinneret plate and capable of providing homogeneous island-in sea type conjugate fibers for the same residence time of all the polymers. CONSTITUTION:The interior of a spinneret device is constituted of the first element 10, second element 20 and third element 30. The first element is provided with conjugate stream forming parts 5-7 for conjugating polymers (A) and (B) and conjugate chambers 8 for gathering plural conjugate streams. Inlet holes 2 for feeding the polymer (B) downward are provided in the peripheral part thereof and plural distribution grooves 53, distribution ends 54 and distribution holes 55 communicating to the inlet holes 2 are provided in positions at different distances from the center of the spinneret device. The conjugate chambers 8 are formed in the periphery of the distribution holes 55. In the process, the length of the channel between the discharge holes 9 provided in the conjugate chambers 8 and the inlet holes 2 is equalized. Static dividing element 22 are provided in the second element 20 to form polymer streams (A+B) finely divided in the flow direction. Polymer flow passages are provided in the third element 30.
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公开(公告)号：JPS6375106A
公开(公告)日：1988-04-05
申请号：JP21403686
申请日：1986-09-12
Applicant: TORAY INDUSTRIES
Inventor： YAMAGUCHI SHIN , OGASAWARA MASASHI , SAITO HIROSHI
Abstract: PURPOSE:To stabilize the arrangement of an island component in the obtained island-in-sea type conjugate fibers, by providing passage holes communicating a distribution chamber on a conjugate plate for forming a primary core-sheath conjugate steam with a gathering chamber for forming the secondary core-sheath conjugate stream under the conjugate plate. CONSTITUTION:A distribution chamber 21 is provided between an upper plate 10 having respective inlet holes 11 and 12 for two kinds of polymers (A) and (B) and a conjugate plate 30 and the inlet holes 12 for the polymer (B) to be a sheath are communicated with the distribution chamber 21. Inlet holes 13 are provided in the upper plate 10 and pipes 14 are erected in the conjugate plate 30 or the pipes 14 are hung down from the upper plate 10 and inlet holes 33 are provided in the conjugate plate 30 to form a primary core-sheath conjugate stream, which is then made to flow in a gathering chamber 41 provided in the lower plate 40 under the conjugate plate 30 to form the secondary conjugate stream. The streams are then extruded through each discharge hole 42 below the gathering chamber 41. In the process, passage holes 32 for communicating the distribution chamber 21 with the gathering chamber 41 are provided in the conjugate plate 30.
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公开(公告)号：JPS6360711A
公开(公告)日：1988-03-16
申请号：JP20520586
申请日：1986-09-02
Applicant: TORAY INDUSTRIES
Inventor： SEKIDO SHUNEI , OGASAWARA MASASHI
Abstract: PURPOSE:To facilitate manufacturing a FRP by filling the inside of a reinforcing fiber with matrix resin evenly, by a method wherein the reinforcing fiber and a thermoplastic fiber are woven into a three diamensional fibrous structural body and the structural body of the reinforcing fiber is made into a matrix by impregnating the structural body of the reinforcing fiber with the thermoplastic fiber melted through heating. CONSTITUTION:A three dimensional fibrous structural body 10 is constituted of warp A and welf B composed of a carbon fiber and vertical yarn C composed of the carbon fiber and a nylon 6 fiber. When the three dimensional fibrous body 10 is pressed by a die 12, thermoplastic resin which has been stuck to the surface of a heat-plasticizable fiber and that of the reinforcing fiber is melted, entered into among the reinforcing fibers and turned into FRP of a predetermined form. Generation of a bend on the reinforcing fiber or void is not observed at all on the formed FRP.
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公开(公告)号：JPS6311455B2
公开(公告)日：1988-03-14
申请号：JP10327478
申请日：1978-08-24
Applicant: TORAY INDUSTRIES
Inventor： SANO TAKAO , OGASAWARA MASASHI , TSUBAKIMORI HIROSHI
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