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1. 发明专利

JPH0577443B2 失效
公开(公告)号：JPH0577443B2
公开(公告)日：1993-10-26
申请号：JP11094284
申请日：1984-06-01
申请人： MITSUBISHI RAYON CO
发明人： TAKEMURA TOORU , YOSHIDA HARUHIKO , TAKAHASHI HIROSHI
IPC分类号： B01D63/02

2. 发明专利

JPH0579665A AIR-CONDITIONING DEVICE 失效
公开(公告)号：JPH0579665A
公开(公告)日：1993-03-30
申请号：JP23640791
申请日：1991-09-17
申请人： MITSUBISHI RAYON CO
发明人： HIRAI TAKAYUKI , KAMO JUN , TAKAHASHI HIROSHI
IPC分类号： A61L9/12 , F24F6/04 , F24F7/00
摘要： PURPOSE:To obtain an air-conditioning device providing a comfortable living space by a method wherein the air-conditioning device is constituted of a humidifying unit, a perfume generating unit, a gas supplying unit, a filter unit and a deodorizing unit. CONSTITUTION:The humidifying unit A of an air-conditioning device is constituted of a hydrophobia fine porous hollow system 1 consisting of polyethylene or the like and fixed by bundling it with a fixing member 4 in a water reserving tank 2 while a gas passage is formed by a part in the fine porous hollow system 1, which is partitioned by a diaphragm wall. A perfume diffusing unit B is formed by bundling and fixing a multi-layer composite hollow diaphragm 6 with another fixing member 9 in a perfume agent receiving tank 7. The multi-layer composite hollow diaphragm 6 is formed through a sandwich structure, in which a homogeneous diaphragm (A) consisting of silicon rubber series polymer or the like is pinched between porous diaphragms (B) consisting of polyethylene or the like. Gas is supplied from a gas supplying unit E to the deodorizing agent 3.4 of a deodorizing unit D. The gas, passed through the deodorizing agent, enters a gas passage in a hollow system 11 from a filter unit C and flows through the perfume generating unit B and the humidifying unit A, then, is discharged as humidified gas with perfume.

3. 发明专利

JPH0576583A SUSTAINED RELEASE FUNCTION TYPE POROUS BODY 失效
公开(公告)号：JPH0576583A
公开(公告)日：1993-03-30
申请号：JP23640891
申请日：1991-09-17
申请人： MITSUBISHI RAYON CO
发明人： HIRAI TAKAYUKI , KAMO JUN , TAKAHASHI HIROSHI
IPC分类号： A01M1/20 , A61L9/12
摘要： PURPOSE:To prevent the dislodgment of a sustained releasing agent and to maintain a stable sustained release function over a long period of time by constructing multilayered composite hollow yarn membranes alternately laminated with homogeneous membranes and porous membranes in such a manner hat the inside surface and outside surface thereof consist of the porous membranes. CONSTITUTION:The multilayered composite hollow yarn membranes 2 consisting of the homogeneous membranes A having

4. 发明专利

JPH0549878A LARGE-DIAMETER-PORE POROUS POLYETHYLENE HOLLOW FIBER MEMBRANE, ITS PRODUCTION AND HYDROPHILIC POROUS POLYETHYLENE HOLLOW FIBER MEMBRANE 失效
公开(公告)号：JPH0549878A
公开(公告)日：1993-03-02
申请号：JP29772991
申请日：1991-10-18
申请人： MITSUBISHI RAYON CO
发明人： KAMO JUN , HIRAI TAKAYUKI , TAKAHASHI HIROSHI , KONDO KENJI
IPC分类号： B01D71/26 , B01D71/38 , D01F6/04 , D02J1/22
摘要： PURPOSE:To provide a porous PE hollow fiber membrane having a structure wherein strip-shaped micropores are laminated, having high porosity and a large pore diameter and capable of diffusing a large amt. of air and a porous PE hollow, fiber membrane having permanent hydrophilicity, high porosity and a large pore diameter. CONSTITUTION:Strip-Shaped micropores 3 are surrounded by a microfibril 1 arranged in the longitudinal direction of the fiber and a knot 2 consisting of stacked lamellas and form a laminated structure intercommunicating from the inner wall surface of a hollow fiber to the outer wall surface. The average diameter of the micropores of the large-pore-diameter PE hollow fiber membrane measured by a mercury porosimeter is controlled to 2-10mum, the porosity to 75-95% and the amt. of diffused to >=8X10 l/m .hr.0.5 atm. The membrane is obtained by melt-spinning PE, annealing the undrawn fiber under specified conditions, cold-drawing and then hot-drawing the fiber.

5. 发明专利

JPH04260423A ANTIBACTERIAL POROUS MEMBRANE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04260423A
公开(公告)日：1992-09-16
申请号：JP2004891
申请日：1991-02-13
申请人： MITSUBISHI RAYON CO
发明人： HAYASHIDA KAZUAKI , TAKAHASHI HIROSHI , YAMAMOTO TAKASHI
IPC分类号： B01D69/00 , B01D71/40
摘要： PURPOSE:To obtain a porous membrane having permanent antibacterial property by causing crosslinked polymer containing antibacterial compounds to be held by the surfaces of pores of at least a part of the porous membrane. CONSTITUTION:Crosslinked polymer containing antibacterial metal compounds (e.g. powder of zinc, copper, silver, tin etc.) is held over the surfaces of pores of at least a part of a porous membrane of polyethylene, etc. The crosslinked polymer is formed by polymerization of multifunctional monomer having two or more of double bonds (e.g. ethylene glycol di(metha)acrylate. Since the antibacterial porous membrane produced in this manner has thereon a crosslinked polymer containing antibacterial metal compounds, wherein said polymer is firmly held by the porous membrane, whereby avoiding a lowering of antibacterial property due to separation of the polymer, the antibacterial property can be permanently maintained.

6. 发明专利

JPH04150932A FINE PORE SIZE STRAIGHT PORE MEMBRANE AND PREPARATION THEREOF 失效
公开(公告)号：JPH04150932A
公开(公告)日：1992-05-25
申请号：JP27241690
申请日：1990-10-12
申请人： MITSUBISHI RAYON CO
发明人： TAKEHATA KOJI , TAKAHASHI HIROSHI , AOKI KUNIHIRO
IPC分类号： B01D71/40
摘要： PURPOSE:To obtain a membrane having a good fractionating characteristic and excellent permeability by providing straight porous having a specific mean pore size to the surface of a porous membrane and setting the mean pore size and pressure loss at the time of the transmission of air so as to satisfy a specific formula. CONSTITUTION:At first, a composition containing a (meth)acrylic ester polymer and/or other component is dissolved in its good solvent to prepare a polymer solution which is, in turn, formed into membrane-like matter. Steam with absolute humidity of 1.0X10 -1.0X10 g/cm is brought into contact with the surface of this membrane like matter under such a condition that steam liner velocity is 12-50m/sec and a contact time of 0.1-10sec. Next, steam with absolute humidity of 1.0X10 -1.0-10 g/cm is brought into contact with the surface of the membrane like matter under such a condition that steam linear velocity is 0.1-9.0m/sec and a contact time is 10-600sec to perform two-stage steam contact treatment to obtain a membrane. This membrane has a mean fore size (d) of 1mum or less and the mean pore size (d) and pressure loss P generated when air is transmitted at linear velocity of 5.3cm/sec satisfy d X P

7. 发明专利

JPH0372908A FILTER MEDIUM FOR AIR FILTER 失效
公开(公告)号：JPH0372908A
公开(公告)日：1991-03-28
申请号：JP20876489
申请日：1989-08-11
申请人： MITSUBISHI RAYON CO
发明人： SUGIMORI TERUHIKO , AOKI KUNIHIRO , TAKAHASHI HIROSHI
IPC分类号： B01D39/14
摘要： PURPOSE:To form a filter medium for air filter having excellent mechanical strength by superposing a filter layer consisting of glass fiber only on the side of void layer of a porous membrane comprising a fine-pore layer having fine pores which have openings perpendicular to the surface of the membrane and a void layer. CONSTITUTION:A porous membrane made from organic polymer, comprising a fine-pore layer having pores which have openings substantially perpendicular to the surface of the membrane and which have average pore diameter of 0.2-10mum and an opening ratio of 35-95% and a void layer having pore diameters larger than those of pores of the fine-pore layer is formed. A filter layer consisting of glass fiber only is superposed on the side of the void layer of the porous membrane to obtain a filter medium for air filter. For superposing a filter layer on a porous membrane, when thermoplastic material is employed in forming a porous membrane, the porous membrane is heated in a spotlike manner and pressed onto the filter layer so that the membrane is easily contacted with the said layer.

8. 发明专利

JPH0243912A GAS FILTER 失效
公开(公告)号：JPH0243912A
公开(公告)日：1990-02-14
申请号：JP19297688
申请日：1988-08-02
申请人： MITSUBISHI RAYON CO
发明人： AOKI KUNIHIRO , TAKAHASHI HIROSHI , TAKEHATA KOJI , KIKUYA NOBUYUKI
IPC分类号： B01D71/64 , B01D39/16 , B44C5/00
摘要： PURPOSE:To enhance particle removal performance an reduce pressure loss by forming a gas filter having a 0.11mum particle collecting efficiency and pressure loss within a specified range of the polyether imide having the specified repeating unit. CONSTITUTION:The gas filter having a 0.11mum particle collecting efficiency of not less than 99.9999% and a pressure loss against an air flow rate of 5cm/sec. of not more than 40mm H2O is formed of the polyether imide having the repeating unit expressed by the formula I (wherein n is an integer of 1-7). The gas filter may be of an unsymmetrical porous structure composed of an entirely homogeneous or nonhomogeneous sponge or the fingery arrangement having the pores larger than those of the spongy structure. The thickness of the gas filter is preferably not less than 50mum taking the mechanical strength into account.

9. 发明专利

JPH022856A POROUS FILM 失效
公开(公告)号：JPH022856A
公开(公告)日：1990-01-08
申请号：JP21213688
申请日：1988-08-26
申请人： MITSUBISHI RAYON CO
发明人： ITO HAJIME , TAKAHASHI HIROSHI , TAKEHATA KOJI , YOSHIDA HARUHIKO , AOKI KUNIHIRO
IPC分类号： B01D71/64 , B01D39/16 , C08J9/28 , C08L79/08
摘要： PURPOSE:To obtain a porous film having excellent mechanical property, heat resistance and solvent resistance, and having a small diameter for obstructing fine particle and high fluid permeability by using polyimide having repetitive unit of specified formula and specified film properties. CONSTITUTION:The porous film effective for the precise filtration of fine particle in liq. or gas, consists of polyimide having the repetitive unit of formula I (where, R1 = tetravalent group of formula II, etc., and R2 = bivalent group of formula III, etc.). The film has =50mum thickness and 15ml/cm .min.10psi water flux. Such film has excellent mechanical property, heat resistance and solvent resistance, and has the small diameter for obstructing fine particle and high fluid permeability, because of high water flux in spite of such small pore diameter and thick thickness thereof.

10. 发明专利

JPS63331A PREPARATION OF POROUS FLUORORESIN MEMBRANE 失效
公开(公告)号：JPS63331A
公开(公告)日：1988-01-05
申请号：JP14445486
申请日：1986-06-20
申请人： MITSUBISHI RAYON CO
发明人： ITO HAJIME , YAMAMOTO TAKASHI , MISHINA YOSHIHIKO , TAKAHASHI HIROSHI , ODA MASAAKI
IPC分类号： C08J9/26 , B01D67/00 , B01D71/36
摘要： PURPOSE:To obtain a porous membrane for fine filtration having a homogeneous pore diameter, by treating a molding of a molecular dispersion compsn. comprising a copolymer of tetrafluoroethylene with other fluorine-containing monomers and a (meth)acrylate polymer with a specific solvent. CONSTITUTION:A molding of a molecular dispersion compsn. comprising a copolymer (polymer A) of tetrafluoroethylene with other fluorine-containing monomers and an acrylate or methacrylate polymer (polymer B) is treated with a solvent which can dissolve the polymer B but not the polymer A. As the above described fluorine-containing monomers, vinylidene fluoride, trifluoroethylene, hexafluoropropylene or perfluoroalkyl vinyl ether can be mentioned. As the above-described solvents, halogenated hydrocarbons such as dichloromethane, chloroform, carbon tetrachloride, methyl bromide etc., and tetrahydrofuran can be mentioned.

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