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41. 发明专利

JP2001054926A PRODUCTION OF THERMOPLASTIC RESIN FOAMED LINEAR ARTICLE 失效
公开(公告)号：JP2001054926A
公开(公告)日：2001-02-27
申请号：JP23250999
申请日：1999-08-19
申请人： UBE NITTO KASEI CO
发明人： WATANABE KAZUNORI , NISHIKAWA RYOZO , SERA MASAKI , ISHII TOKU
IPC分类号： B29C48/32 , B29C44/00 , B29C48/90 , B29C47/20 , B29C47/90
摘要： PROBLEM TO BE SOLVED: To obtain a foamed linear article having a non-foamed resin layer excellent in surface smoothness and reduced in flatness formed on the outer periphery thereof. SOLUTION: A creel 1, an extruder 2, a cooling tank 3, a heating device 4, a cooling sizing 5 and a taking-over machine 6 are used. A kneaded mixture of a foaming agent and a molten thermoplastic resin is continuously extruded to the outer periphery of a tensile force member A from the cap part of the extruder 2 and the extruded mixture is passed through the cooling tank 3 to be cooled and solidified to obtain an intermediate foamed linear article C wherein a thermoplastic resin foamed layer B is formed on the outer periphery of the tensile force member A. The linear article C is heated in the heating tank 4 to melt the outermost resin part of the intermediate foamed linear article C. Next, the linear article C is introduced into the cooling sizing 5 to be sized and cooled so as to become an outer diameter dimension below the outer diameter dimension d2 of a final foamed linear article E.

42. 发明专利

JP2000005320A GUIDE WIRE FOR CATHETER 失效
公开(公告)号：JP2000005320A
公开(公告)日：2000-01-11
申请号：JP17272398
申请日：1998-06-19
申请人： PIOLAX INC , UBE NITTO KASEI CO
发明人： ISHIKAWA TAKESHI , KATO TAKAKIYO , ISHII TOKU
IPC分类号： A61M25/01 , B32B5/10 , B32B5/18 , B32B17/04
摘要： PROBLEM TO BE SOLVED: To eliminate worry about permanent deformation or breakage even against bending by a small radius. SOLUTION: This guide wire consists of an FRP core wire 1 obtained by converging many fibers 2 in an axial direction and integrating them with a synthetic resin 3 and a synthetic resin layer coating the outer periphery of the wire 1. In this case, a cavity 6 is made to exist inside the wire 1, thereby the fibers 2 in the wire 1 flexibly follow curving by the existence of the cavity 6. Thus, there is no worry about permanent deformation even against curving of a small radius and there is no worry about complete breakage even after being kinked.

43. 发明专利

JPH11352369A REINFORCED OPTICAL FIBER CORD AND ITS PRODUCTION 失效
公开(公告)号：JPH11352369A
公开(公告)日：1999-12-24
申请号：JP15571798
申请日：1998-06-04
申请人： UBE NITTO KASEI CO
发明人： ISHII TOKU , NAKASONE TAKAYOSHI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To reduce the diameter of a reinforced optical fiber cord and to improve its economy. SOLUTION: The outer periphery of an optical fiber 1 is longitudinally placed with sheath-core composite fibers of which the sheath parts consist of polyethylene(PE) having a m.p. of 125 deg.C and the core parts consist of polyester(PET) having a m.p. of 250 deg.C and a Young's modulus of 1,200 kg/cm and of which the sectional area ratio of the sheath parts and the core parts is 30/70. This fiber is passed through a metallic molding nozzle of 0.27 mm in bore at the temp. at which only the sheath parts melt, thereby, the fiber reinforced thermoplastic(FRTP) coated optical fiber cord 4 of 0.25 mm in outside diameter consisting of the PET fiber as a reinforced fiber 2 and the PE as a matrix 3 is obtd. Four pieces of such fiber cords are further passed through a nozzle having a hole of a rectangular cross-section, to obtain the ribbon-like reinforced optical fiber cord.

44. 发明专利

JPH11237537A REINFORCED OPTICAL FIBER CORD 失效
公开(公告)号：JPH11237537A
公开(公告)日：1999-08-31
申请号：JP4223798
申请日：1998-02-24
申请人： UBE NITTO KASEI CO
发明人： KATO TAKAKIYO , ISHII TOKU
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To make the diameter of a reinforced optical fiber cord small and to improve the economic efficiency of the cord. SOLUTION: A composite fiber is vertically aligned on the outer periphery of an optical fiber 1 obtained by coating the outer periphery of a quartz group optical fiber with UV resin through a guide plate. The composite fiber is a sheath-core type composite fiber provided with a sheath part and a core part, the melting point of the sheath part is >=20 deg.C lower than that of the core part and the sheath part is thermally fused to form reinforced fibers 2 and a matrix 3. When the core part of the composite fiber has >=6000 kg/mm modulus of elasticity in tension, a reinforced optical fiber cord of high strength having high optical fiber protecting performance can be obtained.

45. 发明专利

JPH11109194A OPTICAL CABLE SPACER AND ITS MANUFACTURE 失效
公开(公告)号：JPH11109194A
公开(公告)日：1999-04-23
申请号：JP26683197
申请日：1997-09-30
申请人： UBE NITTO KASEI CO
发明人： ISHII TOKU , KATO TAKAKIYO , ITO KENJI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To solve the occurrence of an abnormality such as wrinkling or roughing of a groove bottom in a spacer body coating. SOLUTION: An optical cable spacer 10 is provided with a tension resisting body 12 arranged in the center, a preliminary coating layer 14 formed on the circumference of the tension resisting body 12 by extrusion molding of a thermoplastic resin, and a main coating layer 16 formed on the circumference of the preliminary coating layer 14. A plurality of recessed optical fiber housing grooves 20 are provided on the outer periphery of the body coating layer 16 at circumferential intervals. The optical fiber housing groove 20 is defined by ribs 22, extended along the longitudinal direction of the main coating layer 16, and formed spirally at prescribed twisting pitch. The groove bottom part thickness between the outer diameter of the preliminary coating layer 14 and the groove bottom of the spacer body coating layer 16 is set to 0.3 mm or less. The surface roughness of the groove bottom is set to 0.8 μm or less.

46. 发明专利

JPH11109190A OPTICAL CALBE SPACER AND OPTICAL CABLE USING IT 失效
公开(公告)号：JPH11109190A
公开(公告)日：1999-04-23
申请号：JP26684497
申请日：1997-09-30
申请人： UBE NITTO KASEI CO , FUJIKURA LTD
发明人： ISHII TOKU , WATANABE KAZUNORI , ITO KENJI , OMORI TATSUYA , SAITO SHIN , SANO AKIRA , MIYAMOTO SUEHIRO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To improve the flexibility of an optical cable. SOLUTION: A spacer 10 is provided with a tension resisting body 12 arranged in the center, and a spacer body 14 formed on the circumference of the tension resisting body 12 by extrusion molding of a thermoplastic resin. The spacer body 14 is formed of a preliminary coating layer 16 formed on the circumference of the tension resisting body 12 and a main coating layer 18 formed on the circumference of the preliminary coating layer 16. A plurality of recessed optical fiber housing grooves 20 are provided on the outer periphery of the main coating layer of the spacer body 14 at circumferential intervals. The optical fiber housing groove 20 is difined by ribs 22, extended along the longitudinal direction of the spacer body 14, and spirally formed at prescribed twisting pitch and lead angle. The thermoplastic resin forming the spacer body 14 of the spacer 10 consists of polyethylene having a bending elastic modulus of 1000-5000 kg/cm .

47. 发明专利

JPH10142463A SPACER FOR CARRYING OPTICAL FIBER AND ITS MANUFACTURE 失效
公开(公告)号：JPH10142463A
公开(公告)日：1998-05-29
申请号：JP30520296
申请日：1996-11-15
申请人： UBE NITTO KASEI CO
发明人： ISHII TOKU
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To simply adjust the magnitude of a pulling force into a suitable range. SOLUTION: A spacer is equipped with a high-tensile wire A arranged in the center in the cross sectional direction and a spacer body B made of a synthetic resin formed on the outer periphery of the high-tensile wire A. A herical recessed groove B1 is provided on the outer peripheral side along the longitudinal direction. Each herical recessed groove B1 is spaced with the width and depth thereof by ribs B2 provided with a prescribed interval along the circumferential direction. Adhesion parts C, which are in the state of being parted, are formed on the outer periphery of the high-tensile wire A along this. These adhesion parts C are constituted of a thermoplastic resin with adhesive properties, is arranged at an interval of 90 deg.C with respect to the center of the high- tensile wire A and is in contact with the outer peripheral surface of the high- tensile wire A with a prescribed width.

48. 发明专利

JPH10129930A REGULAR WINDING METHOD OF WIRE OF DISSIMILAR SECTION, AND DEVICE USED THEREFOR 失效
公开(公告)号：JPH10129930A
公开(公告)日：1998-05-19
申请号：JP30088296
申请日：1996-10-28
申请人： UBE NITTO KASEI CO
发明人： ISHII TOKU
IPC分类号： B65H54/28
摘要： PROBLEM TO BE SOLVED: To achieve the regular winding of excellent quality with excellent productivity and efficiency even in the case of a wire of dissimilar section in which a surface part is low in rigidity and flexible. SOLUTION: In a regular winding method of a wire of dissimilar section, the winding of a first layer is started from one flange part at the same winding pitch P substantially same as the measured wire diameter D, and the winding is performed until the clearance of D/2 is substantially present between the flange part to the wire immediately before the end of the other flange part to check the winding number (n) in total. In second and subsequent layers, the winding pitch P' which is operated by the formula P'=(L-D/2)/n where L is the clearance between the flange parts on both ends, the winding is preceded to the wire in starting the winding of the flange part end of the second and subsequent layers with the first winding pitch of (P'+D/2), and subsequently the regular winding is completed with the total winding number (n) at the completion winding pitch P'.

49. 发明专利

JPH04324805A WATER-PROOF FIBER REINFORCED THERMAL HARDENING RESIN MADE TWISTING STRUCTURE BODY USED FOR OPTICALCABLE AND ITS MANUFACTURE 失效
公开(公告)号：JPH04324805A
公开(公告)日：1992-11-13
申请号：JP12186191
申请日：1991-04-25
申请人： UBE NITTO KASEI CO
发明人： MATSUNO SHIGEHIRO , KOZUKA KENJI , ISHII TOKU
IPC分类号： G02B6/44 , D07B1/16
摘要： PURPOSE:To prevent a phenomenon of water running. CONSTITUTION:A twisting structure body has a core strand installed in the center and 6 outer strands twisted around the out periphery of the core strand. These strands are constructed by multiple composite strands composed of a non-hardened state thermal hardening resin a2 which is hardened after being twisted, reinforcing fibers a1 impregnated with this thermal hardening resin a2 and a thermal plastic resin a3 for covering the outer periphery of the thermal hardening resin a2. In a space between the core strand and the outer peripheral strand, 6 water absorbing fibers a4 are arranged, and in a recess part between the outer peripheral strands, 6 water absorbing fibers a5 are arranged. An outer periphery covering layer a6 made of a thermal plastic resin is formed on the outermost periphery.

50. 发明专利

JPS63153806A MANUFACTURE OF ANISOTROPIC PLASTIC MAGNET 失效
公开(公告)号：JPS63153806A
公开(公告)日：1988-06-27
申请号：JP7754187
申请日：1987-04-01
申请人： UBE NITTO KASEI CO
发明人： ISHII TOKU , MATSUNO SHIGEHIRO , KITAGAWA TAKESHI , TANAKA TAKAHIRO
IPC分类号： H01F41/02 , H01F1/113
摘要： PURPOSE:To improve the orientation of the axis of easy magnetization of magnetic powder even when the packing fraction of magnetic powder is high or melt viscosity is high, by applying a alternatingly inverted magnetic field under a state, in which a thermoplastic resin and an uncured thermosetting resin are fluidized, and molding and mold-releasing the resins while they are oriented. CONSTITUTION:The inside of a cavity 1 is filled with compound containing magnetic powder such as strontium ferrite group one and using nylon as a bonding resin, and the compound is molded. The set temperature of a heating mold 2 is brought to 280 deg.C, 500A DC currents are conducted for two sec in the forward direction through an exciting coil 3 so that a magnetic field such as 12000 Oe one is applied at a central section in the vertical direction of the cavity 1 by the exciting coil 3 under the state in which nylon resin is melted, and the dead time of a current value O is formed for one sec. 500A DC currents are conducted in the opposite direction, the cycle of stopage for one sec is repeated five times, and the resin is compression-molded by a piston 4 while applying the magnetic field. It is desirable that the number of repetition of forward and reverse inversion is increased in order to sufficiently elevate orientation, but approximately twice or ten times are practical from relationship with the molding time.

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