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61. 发明专利

JP2002054022A ACRYLONITRILE PRECURSOR FIBER AND METHOD OF PRODUCING THE SAME 失效
公开(公告)号：JP2002054022A
公开(公告)日：2002-02-19
申请号：JP2000237116
申请日：2000-08-04
申请人： MITSUBISHI RAYON CO
发明人： HOSAKO YOSHIHIKO , KAGEYAMA YOSHITAKA , IZUMI JINKO , HAMADA MITSUO , IWAMOTO MASAKO , MANABE TORU
IPC分类号： D01F6/18 , D01F9/22
摘要： PROBLEM TO BE SOLVED: To provide wet-extruded acrylonitrile precursor fiber that is improved in the filament-bundling properties, thus complementarily is largely decreased in the finishing oil applied to the fiber surface and has the filament shape that can maintain the process passage in the firing process at a high level and provide a method of producing the same. SOLUTION: The objective acrylonitrile precursor fiber is produced by the wet process and has the following characteristics: The fiber has wrinkles in the fiber-axis direction, but the cross section of the fiber is substantially round, the depth of the wrinkles distributes in the range of one or more wrinkles inside the cross section, but the maximum value of the wrinkle depth is

62. 发明专利

JPH1136135A ACRYLONITRILE FIBER FOR CARBON FIBER PRECURSOR 失效
公开(公告)号：JPH1136135A
公开(公告)日：1999-02-09
申请号：JP18857797
申请日：1997-07-14
申请人： MITSUBISHI RAYON CO
发明人： HOSAKO YOSHIHIKO , KAGEYAMA YOSHITAKA , KOTANI TOMOYUKI , OKUYA TAKAHIRO , IZUMI JINKO
IPC分类号： D01F6/18 , D01F9/22
摘要： PROBLEM TO BE SOLVED: To obtain an acrylonitrile fiber for carbon fiber precursor having good process-passing property by applying a specific weld-preventing lubricant to an acrylonitrile fiber of a state swollen with water and densifying the fiber by drying. SOLUTION: This acrylonitrile fiber for carbon fiber precursor is produced by extruding a spinning dope composed of an acrylonitrile polymer into a coagulation bath to form an acrylonitrile fiber swollen with water, passing the fiber through an aqueous dispersion of a weld-preventing lubricant consisting of a mixture of (A) a compound produced by monoalkyl esterifying an alkylene oxide adduct to bisphenol A and reacting the product with a saturated fatty acid dicarboxylic acid and (B) a compound having terminal amide group and produced by reacting a fatty acid alkanolamide with a condensation product of a dibasic acid and a polyol having an oxyalkylene unit at an A/B weight ratio of 90/10 to 30/70 to apply the lubricant to the fiber to an extent to satisfy the formulas Y>=0.15 and Y

63. 发明专利

JPH1112853A OIL AGENT FOR CARBON FIBER PRECURSOR 失效
公开(公告)号：JPH1112853A
公开(公告)日：1999-01-19
申请号：JP16425197
申请日：1997-06-20
申请人： SHINETSU CHEMICAL CO , MITSUBISHI RAYON CO
发明人： OSAWA YOSHITO , KUWATA SATOSHI , TANAKA MASAKI , KOTANI TOMOYUKI , KAGEYAMA YOSHITAKA
IPC分类号： D01F9/14
摘要： PROBLEM TO BE SOLVED: To obtain an oil agent for a carbon fiber precursor excellent in process passableness and heat resistance without causing fusion among single filaments and any fuzz present therein by emulsifying and dispersing a specific amino-modified silicone and a specified nonionic surfactant and an antioxidant in a specific proportion in water. SOLUTION: This oil agent is obtained by emulsifying and dispersing (A) an amino-modified silicone represented by the formula R is a 1-20C alkyl or a 6-20C aryl; X is Q-(NH-Q')p -NH2 [Q and Q' are each a 1-10C bivalent hydrocarbon; (p) is 0-2]; Y is X, R, a 1-5C alkoxy or hydroxyl group; (m) is 10-10,000; (n) is 0-100}, (B) 0.01-20 wt.% (based on the component A) of an antioxidant such as an aromatic amino group-containing organopolysiloxane and (C) 5-100 wt.% (based on the component A) of a nonionic surfactant having 6-16 HLB such as a polyoxyethylene alkyl ether or a polyoxyethylene alkylphenyl ether in water.

64. 发明专利

JPH09143823A PRODUCTION OF CARBON FIBER 失效
公开(公告)号：JPH09143823A
公开(公告)日：1997-06-03
申请号：JP30458895
申请日：1995-11-22
申请人： MITSUBISHI RAYON CO
发明人： KODAMA YOICHI , OHASHI HIDEHIKO , KAGEYAMA YOSHITAKA , HAYASHI SHOJI
IPC分类号： D01F9/22
摘要： PROBLEM TO BE SOLVED: To obtain a carbon fiber having a high performance at a low cost by stably executing the flame resistant treatment of an acrylic precursor fiber for a carbon fiber in a heated air under a specific condition in a short time without using any special device. SOLUTION: This method for producing a carbon fiber is to treat an acrylic precursor fiber for the carbon fiber to make it flame resistant in a heated air by adding an elongation so as to give 50-200g/d tension until attaining 1.22g/cm fiber density. It is possible to conduct the treatment to make the fiber flame resistant is a short time as approximately 25min while preventing the fiber from a cutting by melting or a winding to a roll.

65. 发明专利

JPH07189113A METHOD FOR SURFACE TREATMENT OF CARBON FIBER 失效
公开(公告)号：JPH07189113A
公开(公告)日：1995-07-25
申请号：JP33728693
申请日：1993-12-28
申请人： MITSUBISHI RAYON CO
发明人： OHASHI HIDEHIKO , KAGEYAMA YOSHITAKA
IPC分类号： D06M10/00 , D06M101/00 , D06M101/40
摘要： PURPOSE:To provide a method for treating the surface of carbon fiber, capable of uniformly electrolyzing fibers in the inside and on the outside of a carbon fiber tow. CONSTITUTION:In a method for electrolyzing the surface of carbon fiber in a solution of an electrolyte, the treatment current waveform is a reticular wave constituted of a current impression time and a current quiescent time, the interval from a certain current quiescent time to a next current impression time is 5mus s to 20s and further a value theta defined by (interval of current impression time)/(interval of current impression time + interval of current quiescent time) of 0.01-1 to provide a method for treating the surface of carbon fiber.

66. 发明专利

JPH06228083A LIQUID CRYSTAL COMPOUND 失效
公开(公告)号：JPH06228083A
公开(公告)日：1994-08-16
申请号：JP32725991
申请日：1991-12-11
申请人： MITSUBISHI RAYON CO
发明人： TERADA FUMIKO , KAGEYAMA YOSHITAKA , IKEMOTO TETSUYA , NAKAOKA YURIKO
IPC分类号： C07C323/12 , C07D239/26 , C07D239/34 , C09K19/12 , C09K19/34
摘要： PURPOSE:To obtain a new compound useful as a nonchiral component of a ferroelectric liquid crystal composition capable of enlarging a SC phase of a bicyclic pyrimidine-based composition to a low temperature side, responding at a high speed in low viscosity, having optical stability and excellent durability. CONSTITUTION:A compound of formula I (R1 and R2 are 2-5C branched or straight-chain alkyl; ring A is group of formula II, formula III, etc.; X is single bond or 0; n is 1-16; Y is H or F) such as a compound of formula IV. The compound of formula IV, for example, is obtained by dissolving n-(n-butylthio) ethanol and octyloxypyrimidinephenol in benzene, reacting with triphenylphosphine and azodicarboxylic acid diethyl ester at room temperature for 10 hours while stirring.

67. 发明专利

JPH06211828A OPTICALLY ACTIVE SUBSTANCE AND LIQUID CRYSTAL COMPOSITION 失效
公开(公告)号：JPH06211828A
公开(公告)日：1994-08-02
申请号：JP18104891
申请日：1991-07-22
申请人： MITSUBISHI RAYON CO
发明人： KAGEYAMA YOSHITAKA , IKEMOTO TETSUYA , NAKAOKA YURIKO , TERADA FUMIKO
IPC分类号： C07D309/30 , C07D405/04 , C07D405/12 , C09K19/34 , C09K19/42 , G02F1/13
摘要： PURPOSE:To obtain an optically active substance having chemical stability free from coloring, showing excellent light stability, making a liquid crystal composition exhibit high spontaneous polarization and lengthen a spiral pitch of a chiral smectic phase by blending the liquid crystal composition with the optically active substance. CONSTITUTION:A delta-valerolactone ring-containing optically active substance of formula I [R1 is 1-18C alkyl, 2-28C alkyl or alkoxyalkyl comprising 1-3C alkoxy part and 1-18C alkyl part (the groups may be substituted with halogen); R2 is 4-18C alkyl; X is single bond, O, CO2 or OCO; Y is single bond, CO2, O, CH2O or OCH2; A is group of formula II to formula VII (B, B' and B'' are H, halogen, CN, methyl, methoxy or trihalomethyl; V is single bond, CH2O, OCH2, CO2 or OCO), etc.] such as (S)-2-(3'-fluoro-4'-octyloxybiphenyl-4- carboxy)-5,5'-dihexyl-delta-valerolactone. The compound of formula I wherein Y is CO2 is obtained by a reaction route shown by the formula.

68. 发明专利

JPH03220289A FERROELECTRIC LIQUID CRYSTAL COMPOSITION AND OPTICAL DEVICE 失效
公开(公告)号：JPH03220289A
公开(公告)日：1991-09-27
申请号：JP31556290
申请日：1990-11-20
申请人： MITSUBISHI RAYON CO
发明人： HAYASHI SHOJI , SAKASHITA KEIICHI , KAGEYAMA YOSHITAKA , IKEMOTO TETSUYA , SAKO YOSHIHIRO
IPC分类号： G02F1/13 , C09K19/20 , C09K19/34 , C09K19/42
摘要： PURPOSE:To obtain a ferroelectric liquid crystal composition excellent in orientation and response and useful particularly for an optical switch and a display by mixing a specified optically active liquid-crystal compound and an optically inactive liquid-crystal compound. CONSTITUTION:A ferroelectric liquid crystal composition made by mixing an optically active liquid-crystal compound or its mixture and an optically inactive liquid-crystal compound or its mixture, which at least contains at least one liquid-crystal compound of formula I and at least one liquid-crystal compound of formula II as the principal components of the optically active liquid-crystal compound or its mixture. In the formulas, R1 is of formula III (wherein n is 1 to 18), etc., R2 is 1-14C alkyl; Y is of formula IV, etc.; Z1 is of formula V (Wherein A1 is H, F, Cl or CN), etc.; Z2 is of formula VI, etc.; R3 is 1-18C alkyl, etc.; and R4 is 1-18C alkyl, etc. Examples of optical devices made by using the composition include a transmission type ferroelectric liquid crystal display, a reflection type ferroelectric liquid crystal display, and a parallel arithmetic element made by using a ferroelectric liquid crystal.

69. 发明专利

JPH0261614A LIQUID CRYSTAL ELEMENT 失效
公开(公告)号：JPH0261614A
公开(公告)日：1990-03-01
申请号：JP21240288
申请日：1988-08-29
申请人： MITSUBISHI RAYON CO
发明人： KAGEYAMA YOSHITAKA , HAYASHI SHOJI , SAKO YOSHIHIRO , NAKAUCHI JUN
IPC分类号： G02F1/1337
摘要： PURPOSE:To obtain good orientational property and bistability by forming a mixture composed of >=2 kinds of polymers which are different in orientational power as an oriented film for a liquid crystal and dispersing and forming the domains which are different in the mixing ratio of the polymers to the surface layer part of the oriented film. CONSTITUTION:The mixture composed of the polymer having horizontal orientational power and the polymer having perpendicular orientational power is used as the oriented film 4 for the liquid crystal of the liquid crystal element constituted by crimping the ferroelectric liquid crystal 5 between two sheets of substrates 1 having transparent electrodes 3 on the surfaces; in addition, the surface layer part of the oriented film 4 is formed to have the phase sepn. structure dispersed and formed with the domains varying in the mixing ratios of the polymers. Such oriented film 4 has the sea and island structure in which the polymer components (regions 2) having the perpendicular orientational power float in the polymer components (region 1) having the horizontal orientational power. The size and shape of the domains are controllable by changing the kinds of the polymers, dispersants, temp. or the mixing ratios of the polymer components. The good orientational property and bistability are developed in this way.

70. 发明专利

JPS63303955A LIQUID CRYSTAL COMPOUND HAVING BETA-HYDROXYCARBOXYLIC ACID ESTER AS ASYMMETRIC SOURCE AND LIQUID CRYSTAL COMPOSITION CONTAINING SAID COMPOUND 失效
公开(公告)号：JPS63303955A
公开(公告)日：1988-12-12
申请号：JP13945387
申请日：1987-06-03
申请人： MITSUBISHI RAYON CO
发明人： NAKAUCHI JUN , HAYASHI SHOJI , KAGEYAMA YOSHITAKA , SAKASHITA KEIICHI
IPC分类号： C07C69/734 , C07C69/92 , C07C69/94 , C09K19/20
摘要： NEW MATERIAL:A compound, having a beta-hydroxycarboxylic acid ester as an asymmetric source and expressed by formula I (m is 1-19; n is 1-12; R1 and R2 are phenylene or biphenylene; X is -CO2-, -OCH2- or -CH2O-; Y is -CO2- or -O-; R is methyl or ethyl; * indicates asymmetric carbon). EXAMPLE:An alkyl 2-[(4'-(4''-(4''-alkoxy)biphenyl)carbonyloxy)benzoyloxy]butyr- ate. USE:A ferroelectric liquid crystal or blending agent therefor, capable of exhibiting high spontaneous polarization and having a wide temperature range of liquid crystal and excellent stability without coloring. PREPARATION:A compound expressed by formula II is esterified with a compound expressed by formula III in the presence of a tertiary amine to afford the aimed compound expressed by formula I.

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