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1. 发明专利

JP2004076171A Method for thermally treating acrylic fiber 有权
标题翻译：用于热处理丙烯纤维的方法
公开(公告)号：JP2004076171A
公开(公告)日：2004-03-11
申请号：JP2002234360
申请日：2002-08-12
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： NOMURA MOTOO , ONISHI HIROAKI , OGATA MASAHARU , HARA SETSUO , UEDA KOJI
IPC分类号： D02J13/00 , D01D10/02
摘要： PROBLEM TO BE SOLVED: To provide a method for thermally treating acrylic fibers, by which the stabilized acrylic fibers can be obtained after the thermal treatment.
SOLUTION: This method for thermally treating the acrylic fibers comprises setting the acrylic fibers accumulated in a container 1 to the inside of a closed pot, first repeating pressure-reducing treatments and steam-pressurizing treatments in the closed pot to replace air by steam, pressurizing the reduced pressure state with steam in the above-described replacement treatment, performing pressure-reducing treatments and steam-pressurizing treatments several times, performing a pressure-reducing treatment, and finally returning to the ordinary pressure to finish the thermal treatment.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种热处理丙烯酸纤维的方法，通过该方法可以在热处理后获得稳定的丙烯酸纤维。解决方案：用于热处理丙烯酸纤维的方法包括将积聚在容器1中的丙烯酸纤维设置到封闭罐的内部，首先在封闭的锅中重复减压处理和蒸汽加压处理，以通过蒸汽，在上述更换处理中用蒸汽加压减压状态，进行减压处理和蒸汽加压处理数次，进行减压处理，最后回到常压结束热处理。版权所有（C）2004，JPO

2. 发明专利

JP2003336122A Method for producing acrylic fiber 有权
标题翻译：生产丙烯纤维的方法
公开(公告)号：JP2003336122A
公开(公告)日：2003-11-28
申请号：JP2002145310
申请日：2002-05-20
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： ONISHI HIROAKI , TAKEUCHI SHUSUKE
IPC分类号： D01F6/18 , D01D5/06
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an acrylic fiber to realize a stable passing through processes in washing and drawing processes after wet spinning. SOLUTION: The method for producing the acrylic fiber is carried out in a wet spinning. The passing through the processes is improved by adding 2-1,000 ppm surfactant in process water of the washing process and/or the drawing process after the wet spinning to reduce fiber braking and roller entanglement of the fiber. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种生产丙烯酸纤维的方法，以在湿纺之后的洗涤和拉伸过程中实现稳定的通过过程。解决方案：丙烯酸纤维的制造方法是在湿法纺丝中进行的。通过在湿法纺丝后，通过在洗涤过程和/或拉伸过程的加工水中加入2-1,000ppm表面活性剂来改善通过该方法，以减少纤维的纤维制动和辊缠结。版权所有（C）2004，JPO

3. 发明专利

JPH0931745A ACRYLIC CONTINUOUS FILAMENT HAVING NEW FEELING AND ITS PRODUCTION 失效
公开(公告)号：JPH0931745A
公开(公告)日：1997-02-04
申请号：JP17649995
申请日：1995-07-12
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , YANAGI YASUO , DOI YOSHITAKA
IPC分类号： D01F6/18 , D01D5/24 , D02G1/02 , D02G3/02
摘要： PROBLEM TO BE SOLVED: To obtain acrylic continuous filaments having a prescribed radius of curvature and new feeling of high crispness and dry touch by spinning acrylic continuous filaments having hollow cross sections by a dry jet-wet spinning in using specific spinning spinnerets and slitting by a false-twisting. SOLUTION: Acrylic continuous filaments having hollow cross sections are obtained by a dry jet-wet spinning in using spinning spinnerets having spinning holes comprising plural arc-shaped slit holes 1 arranged at suitable intervals on a concentric circle. The continuous filaments are slitted by a false-twisting to obtain the objective acrylic continuous filaments having arc-shaped bent flat cross sections having four corners and having

4. 发明专利

JPH05331702A HEAT TREATMENT OF ACRYLIC FILAMENTS 失效
公开(公告)号：JPH05331702A
公开(公告)日：1993-12-14
申请号：JP13356992
申请日：1992-05-26
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , YANAGI YASUO
IPC分类号： D01F6/18 , D02J1/22 , D02J13/00
摘要： PURPOSE:To obtain acrylic filaments of excellent level dying properties by effecting heat treatment of the filaments as they are passed through the hot plate groove satisfying specific conditions. CONSTITUTION:In the heat treatment of acrylic filaments, the filaments are brought into contact with the hot plate having a groove whose width is given the following formula in the filament running direction. GW=n {DXF /(2.7X10 Xpi)} wherein GW is the groove width of the hot plate in mm, D is total denier of the filaments, F is filament count and 1

5. 发明专利

JPH04362904A PRODUCTION OF LOW-LOSS FLUORINE-CONTAINING OPTICAL FIBER 失效
公开(公告)号：JPH04362904A
公开(公告)日：1992-12-15
申请号：JP2511891
申请日：1991-01-28
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , SHIMADA KATSUHIKO , YAMAMOTO TAKASHI
IPC分类号： C08F2/00 , C08F20/22 , C08G65/22 , C08L71/02 , G02B6/00
摘要： PURPOSE:To decrease transmission loss of light by constituting both of the core polymer and the clad polymer of specified fluorine-contg. polymers. CONSTITUTION:The polymer is prepared by the following process. 2,2'-azobis is introduced from a polymn. initiator tank 11 to a still 3, into which nitrogen gas is introduced to send the vapor of the polymn. catalyst to a cooling tube 24. The vapor of the polymn. catalyst is condensed into a soln. and then introduced to a polymn. chamber 21. Then vapor of n-butylmercaptan is introduced to a cooling tube 25 to be condensed while nitrogen gas is introduced to a still 4. The condensed n-butylmercaptan is introduced to the polymn. chamber 21 which is cooled. Further, alpha-fluoro-1,1,1,3,3,3-hexafluoroisopropyl acrylate is introduced from a monomer tank 9 for core material to a still 1. The still 1 is heated, into which nitrogen gas is introduced through a capillary 17 to send the vapor of the chief monomer to a cooling tube 22 and the vapor is condensed and introduced to the polymn. chamber 21.

6. 发明专利

JPH04204507A PLASTIC OPTICAL FIBER 失效
公开(公告)号：JPH04204507A
公开(公告)日：1992-07-24
申请号：JP33007190
申请日：1990-11-30
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , SHIMADA KATSUHIKO , YAMAMOTO TAKASHI
IPC分类号： G02B6/00 , C08F20/22 , C08F34/00 , C08F220/22 , C08F234/02
摘要： PURPOSE:To obtain an optical fiber excellent in its strength and flexibility without lowering its light transmission performance by drawing a composite-spun optical fiber precursor up to its specified time length. CONSTITUTION:A polymer, shown by the formula, having alkyl ester fluoride of alpha,beta-unsaturated monocarboxylic acid as its main constituent used as a core, and a copolymer of perfluoro(2,2-dimethyl-1,3-dioxol) and at least one copolymerizable ethylene unsaturated monomer is used as a sheath. The difference in glass transition temperature between both polymers is made less than 30 deg.C. An optical fiber is preferably the obtained fiber is drawn, the temperature is made higher than the glass transition temperature by 10-30 deg.C, and the drawing ratio is set 1.2-10 times, preferably 1.5-5 times. The optical fiber thus becomes tough and highly flexible.

7. 发明专利

JPH0488304A PLASTIC OPTICAL FIBER 失效
公开(公告)号：JPH0488304A
公开(公告)日：1992-03-23
申请号：JP20248790
申请日：1990-08-01
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , SHIMADA KATSUHIKO , YAMAMOTO TAKASHI
IPC分类号： G02B6/00 , C08F14/22 , C08F214/22 , C08F214/26
摘要： PURPOSE:To allow the efficient transfer of the light in not only a visible region but a near IR region as well by forming a specific copolymer as a core and a specific polymer as a clad. CONSTITUTION:The polymer of 30 to 50wt.% vinylidene fluoride and 15 to 25wt.% at least one kind of the monomers selected from hexafluoropropylene, trifluoroethylene, perfluoroalkyl vinyl ether, and hexafluoracetone is used as the core. The polymer which is the copolymer of perfluoro (2, 2-dimethyl-1, 3-dioxol) and at least one piece of other ethylenic unsatd. monomer and has the refractive index lower than the refractive index of the polymer for forming the fiber material is used as the clad. The all plastic optical fiber formed of these materials is the lower ratio of the C-H bonds per the molecule of the fiber material and has the extremely low water absorptivity and, therefore, the increase in the transmission loss by absorption of water is obviated and the transmission losses in not only the visible region but the near IR region are decreased.

8. 发明专利

JPH0451205A PLASTIC OPTICAL FIBER 失效
公开(公告)号：JPH0451205A
公开(公告)日：1992-02-19
申请号：JP15991990
申请日：1990-06-20
申请人： MITSUBISHI RAYON CO
发明人： YAMAMOTO TAKASHI , SHIMADA KATSUHIKO , ONISHI HIROAKI
IPC分类号： G02B6/00
摘要： PURPOSE:To decrease the loss of a structural mismatching and to obtain the plastic optical fiber having excellent transmission performance by constituting the plastic optical fiber of polymers for forming respective layers of a fiber layer/sheath layer/protective layer, the melt index values (M.I. values) of which satisfy specific conditions. CONSTITUTION:The polymer for forming the fiber material is required to be formed of the polymer having the M.I. value smaller than 5/9 M.I. value of the polymer for forming the sheath. The optical fiber having good optical transmission characteristics is obtd. if such conditions are satisfied. The M.I. value of the polymer for forming the sheath material is set smaller than 7/9 of the M.I. value of the polymer for forming the protective layer, by which the structural mismatching at the boundary of the fiber material layer/sheath material layer and the boundary between the sheath material layer/the protective layer is improved.

9. 发明专利

JPH03106915A CURABLE COMPOSITION 失效
公开(公告)号：JPH03106915A
公开(公告)日：1991-05-07
申请号：JP24228289
申请日：1989-09-20
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , MATSUMOTO SHIRUYOSHI , AOKI KUNIHIRO
IPC分类号： C08F299/00 , C08F290/00 , C08G18/22 , C08G18/32 , C08G18/67
摘要： PURPOSE:To obtain a curable composition having good quality and excellent compatibility with another component such as a crosslinking agent by mixing a polymerizable fluorine compound containing a diisocyanate residue, a diol residue and a polymerizable unsaturated bond with a curing agent. CONSTITUTION:A curable composition comprising a fluorine compound having a structural unit of formula I (wherein R is an alkylene) and a structural unit of formula II (wherein Rf is a fluoroalkylene) and a polymerizable unsaturated bond and a curing agent. Examples of the diisocyanate residue of the structural unit of formula I include tolylene diisocyanate and tetramethylxylene diisocyanate. Examples of the diol residue of the structural unit of formula II include 4,4,4-trifluorobutane-1,2-diol and 2,2,3,3,-tetrafluorobutane-1,4-diol. To introduce the polymerizable unsaturated bond, 2-hydroxyethyl acrylate, 2-hydroxypropyl methacrylate or the like is used.

10. 发明专利

JP2003340253A Mixing device for powder and liquid, and method therefor 有权
标题翻译：用于粉末和液体的混合装置及其方法
公开(公告)号：JP2003340253A
公开(公告)日：2003-12-02
申请号：JP2002147254
申请日：2002-05-22
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： NAKAMURA TERUO , ONISHI HIROAKI
IPC分类号： B01F5/02 , B01F3/12 , B01F5/26 , B01F15/00 , B01F15/02
摘要： PROBLEM TO BE SOLVED: To provide a mixing device which prevents generation of lumps and undissolved powder in mixing the powder and liquid, and can continuously mix them and uniformly at a desired concentration, and to provide a method therefor.
SOLUTION: The constant quantity of powder 10 is fallen continuously by gravity into the central part of a cylindrical vessel 1 and the falling powder is mixed with the injection-flow liquid by injecting the liquid from an injection opening 12 installed along the peripheral direction of the lower cylindrical part 4 of the cylindrical vessel 1.
COPYRIGHT: (C)2004,JPO

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