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公开(公告)号：JP2000128888A
公开(公告)日：2000-05-09
申请号：JP28504599
申请日：1999-10-06
Applicant: AGENCY IND SCIENCE TECHN
Inventor： YATABE TETSUO , OKUMOTO HAJIME , KAIDO AKIRA , TANABE GIICHI , KANEIWA KENJI , SAKURAI HIDEKI
Abstract: PROBLEM TO BE SOLVED: To obtain a new compound useful as a synthetic intermediate for an α,ω-dialkyl-substituted permethyloligosilane liquid crystal compound having the low transition temperature to a liquid crystal, and a wide temperature range of the liquid crystal state. SOLUTION: This new compound is the one of formula I (m is 7-12), e.g. 1,8-diphenylpermethyloctasilane. The compound of formula I in which M is 7 or 8 is obtained by dropping a solution of dimethylphenylsilyllithium of formula III in a solvent (preferably tetrahydrofuran)into a solution of a dichlorooligosilane compound of formula II (p is 5 or 6) in a solvent (preferably hexane), normally stirring the obtained solution for 1-10 min to react the compounds. The compound of formula III in an amount of 2 mol is preferably used based on 1 mol compound of formula II. The solution of the compound of formula II is ordinary used by cooling the solution to 4-20 to 20 deg.C, and the temperature of the reaction liquid is preferably regulated so as not to over the room temperature. The dropping time is normally 10-50 min.
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公开(公告)号：JPH05168647A
公开(公告)日：1993-07-02
申请号：JP35775291
申请日：1991-12-25
Applicant: GUNZE KK , AGENCY IND SCIENCE TECHN
Inventor： SHIMAMOTO TAKESHI , OKA TAKASHIGE , ADACHI MINORI , GEN JIYOUKIYUU , NAKAYAMA KAZUO , KAIDO AKIRA
Abstract: PURPOSE:To provide the bone treating implement consisting of a biodecomposable polymer which has the initial strength equiv. to stainless steel or ceramic implement for joining bones, maintains the strength required for the treatment during the period necessary for the treatment and is thereafter rapidly degraded in strength and absorbed in a living body and the production thereof. CONSTITUTION:This bone treating implement is a high-density molding oriented with the molecules of the biodecomposable polymer in the major axis direction, has >=1.260g/cm density measured by a float-and-sink method and maintains the bending strength and bending strength holdability expressed by equations (1) and (2). A>=B>=23 (kgf/mm )...(1). B/A>=0.85...(2), where A is the initial bending strength of this bone treating implement and B is the bending strength after immersion measured after the bone treating implement is immersed for 90 days in a phosphoric acid buffer soln. kept at 37 deg.C.
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公开(公告)号：JPS61206624A
公开(公告)日：1986-09-12
申请号：JP4798285
申请日：1985-03-11
Applicant: AGENCY IND SCIENCE TECHN
Inventor： NAKAYAMA KAZUO , MIYASHITA KIYOSHI , KAIDO AKIRA , KANETSUNA HISAAKI
Abstract: PURPOSE:To give physical properties fully satisfying with the requirements as the base material of magnetic recording tape such as strength and elastic modulus by a method wherein the film mainly consisting of polyethylene terephthalate is characterized with the specified structural and mechanical factors. CONSTITUTION:The titled film is obtained by forcibly drawing un-orientated amorphous polyester film through a pair of rolls with a narrow gap and, after that, heat-treating the drawn film. The film is characterized with: (a) A crystal face of the film is face-oriented to the surface of the film. (b) An orientation index of the film, which is obtained from the half-width of X-ray diffraction intensity in the direction of the orientation angle of a 010 crystal face, is 92% or more. (c) The images by small-angle X-ray scattering in the edgewise direction of the film show four point images in the shape of laminar lines. (d) The dynamic elastic modulus of the film measured by applying 110Hz vibration is 11 GPs or higher. (e) The shearing strength of the film is 250 MPa or more.
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公开(公告)号：JP2000294374A
公开(公告)日：2000-10-20
申请号：JP10454199
申请日：1999-04-12
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KAIDO AKIRA , ICHINO YOSHIAKI , TAKADA TOKUYUKI , TANIGAKI NOBUTAKA , MINAMI SHINJI , YATSUSE KIYOSHI , TANABE GIICHI , YOSHIDA MASARU , YOKOGAWA SHINOBU , SAKURAI HIDEKI
Abstract: PROBLEM TO BE SOLVED: To obtain a light source capable of providing the polarized luminescence by forming a first polysilane film on a transparent anode plate by using solvent insoluble polysilane, forming a second polysilane film on the first polysilane film by using a solvent soluble polysilane, and mounting a cathode plate on the second polysilane film. SOLUTION: A polarized luminescence EL element comprises a first polysilane orientation film 2 oriented by a mechanical deposition method and formed on a transparent anode plate 1, a second polysilane orientation film 3 orientated by an epitaxial growing and formed on the first polysilane orientation film 2, and further a cathode plate 4 formed on the second polysilane orientation film 3. By mounting a hole blocking layer 5 between the second polysilane orientation film 3 and the cathode plate 4, the flowing of positive charge to the cathode can be prevented, and the characteristic of the EL element can be further stabilized. By combining two kinds of polysilane orientation films, an uniform orientation film is formed in the element, and the minimized EL element of high efficiency can be provided.
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公开(公告)号：JPH073033A
公开(公告)日：1995-01-06
申请号：JP12290494
申请日：1994-06-06
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KIYOUTANI MICHIYUKI , KAIDO AKIRA , NAKAYAMA KAZUO
Abstract: PURPOSE:To obtain a liquid-crystalline polymeric microsphere, having a prescribed average grain diameter, excellent in solvent resistance and useful as a filler, etc., by mixing a liquid crystal polymer having self-orienting properties with a solvent-soluble liquid-noncrystalline polymer in a specific proportion, then carrying out the extrusion molding under specified conditions, dissolving and removing the liquid-noncrystalline polymer. CONSTITUTION:(A) A liquid crystal polymer having self-orienting properties is mixed with (B) a solvent-soluble liquid-noncrystalline polymer such as polyethylene terephthalate at a weight ratio within the range of (30/70) to (10/90) and the resultant mixture is subsequently heated at the melting temperature of the components (A) and (B) or above in which the component (A) is capable of maintaining the liquid crystal state and then subjected to the extrusion molding. The component (B) is subsequently dissolved and removed with a solvent to afford the objective microsphere having 0.5-10mum average grain diameter.
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Patent Agency Ranking
公开(公告)号：JPH01210327A
公开(公告)日：1989-08-23
申请号：JP3497888
申请日：1988-02-19
Applicant: AGENCY IND SCIENCE TECHN , NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
Inventor： NAKAYAMA KAZUO , KAIDO AKIRA , KANETSUNA HISAAKI , TANAKA ISAO , HERAI TOSHIO
Abstract: PURPOSE:To enable the drawing of material at high productivity to be achieved at high drawing speed, while the high deformation ratio is maintained by a method in which rapid cooling treatment is applied to the stock immediately after the finish of hot drawing of crystalline thermoplastic high molecular weight material, whereby high speed drawing is carried out. CONSTITUTION:Preheated crystalline thermoplastic high molecular weight stock 1 is drawn through a heated drawing tool 2 e.g. a die or rolls, while the distance of the drawing tool is regulated, whereby the stock 1 is drawn. A cooling range 3 is provided immediately after the exit of the drawing tool 2, and the strength of the stock 1 in the position immediately after the exit of the drawing tool 2, is restored to its original strength by rapid cooling treatment of the stock, thereby enabling the drawing speed to be raised. Further in the stock 1 after passing the drawing tool, strain hardening and the molecular orientation in a certain direction occur, whereby the stock 1 has higher strength than that of the stock 1 before passing the drawing tool.
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公开(公告)号：JPS63154325A
公开(公告)日：1988-06-27
申请号：JP30309286
申请日：1986-12-19
Applicant: AGENCY IND SCIENCE TECHN , KURIEITO PLAST KK
Inventor： NAKAYAMA KAZUO , KITANO TAKESHI , KIYOUTANI MICHIYUKI , KAIDO AKIRA , TAKAYAMA HIDEKATSU
Abstract: PURPOSE:To enable the title equipment to perform stable extrusion without having deterioration due to dwell of plastics, and without crush of a mixed filler, by a method wherein a rotary disk and feed screw are made turnable at adjustable and different turning speeds. CONSTITUTION:A rotation of an electric motor 20 provided with variable reduction gears is transmitted to a pulley 21 and pulley 23 of a shaft 5 fixed to a rotary disk 6 through a chain belt 22. On the one hand, the rotation of the electric motor 20 is transmitted to a pulley 26 in a variable reduction gears 25 through a chain belt 24 from the above-stated pulley 21, and the rotation of the electric motor 20 is transmitted further to a pulley 29 fixed to a feed screw 2 through a chain belt 28 from an output side pulley 27 of the variable reduction gears 25. With this construction, mutual action (accompanying drive) between the rotary disk 6 and feed screw 2 does not exist even in the presence of a solid state or molten state plastics. In addition, a prevention effect of dwell of plastics can be displayed effectively through appropriate balancing where a rotation between the rotary disk 6 and feed screw 2 is controlled and a rotation of the feed screw 2 is improved relatively.
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公开(公告)号：JP2000338697A
公开(公告)日：2000-12-08
申请号：JP2000071269
申请日：2000-03-14
Applicant: AGENCY IND SCIENCE TECHN
Inventor： OKUMOTO HAJIME , YATABE TETSUO , SHIMOMURA MASAKI , MINAMI SHINJI , KAIDO AKIRA , TANABE GIICHI
Abstract: PROBLEM TO BE SOLVED: To obtain a higher-speed electric charge generating and transferring material having higher sensitivity and an electric charge generating and transferring element using the material. SOLUTION: The electric charge generating and transferring material comprises an oligosilane compound of the formula R1-(SiR2R3)n-R4, wherein R1-R4 are each H, a 1-4C alkyl or phenyl and (n) is an integer of 6-18. The electric charge generating and transferring material is a thin film obtained by melting and cooling the oligosilane compound at
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公开(公告)号：JP2000063817A
公开(公告)日：2000-02-29
申请号：JP23246598
申请日：1998-08-19
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KAIDO AKIRA , TANIGAKI NOBUTAKA , YATABE TETSUO , TANABE GIICHI
IPC: C09K11/06
Abstract: PROBLEM TO BE SOLVED: To obtain a polarized light-emitter which absorbs radiated light (nonpolarized) in all directions, emits light on the basis of it and has a high light-emitting efficiency and a high light-emitting intensity by laminating a highly-oriented polysilane film and a poorly-oriented polysilane film. SOLUTION: A highly-oriented polysilane is made from insoluble polydimethylsilane or polydiethylsilane preferably having a weight average molecular weight of not less than 20,000. A highly-oriented film is formed by a mechanical deposition method. The thickness is about 10-40 nm. A poorly- oriented film is preferably made from soluble polysilane of the formula (wherein R1 and R2 are each an aliphatic or aromatic compound but both of them are not methyl, ethyl or propyl groups at the same time; the total number of carbon atoms of R1 and R2 is 3-40, preferably 4-25). The weight average molecular weight is preferably 10,000-1,000,000. The thickness is 10-1,000 nm. A casting method is used for the film preparation. A light-emitting material is prepared by spin-coating soluble polysilane. When nonpolarized light is radiated on the poorly-oriented film, polarized light is emitted by the highly-oriented film.
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公开(公告)号：JP2000063525A
公开(公告)日：2000-02-29
申请号：JP23145998
申请日：1998-08-18
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KAIDO AKIRA , TANIGAKI NOBUTAKA , TANABE GIICHI , KYOTANI HIROKO , YOSHIDA MIKIKO
Abstract: PROBLEM TO BE SOLVED: To obtain a stretchable new polysilane and a stretched film comprising the above polysilane. SOLUTION: This stretchable silane copolymer is composed of a dimethylsilane unit A and a methylpropylsilane unit B and the copolymer has (3/7) to (6/4) weight ratio [A]/[B] of the content [A] of the dimethylsilane unit A to the content [B] of the methylpropylsilane unit B and >=50,000 number- average molecular weight. The stretched film comprises the silane copolymer.
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