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81. 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.

82. 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.

83. 发明专利

JPH022861A POROUS MEMBRANE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH022861A
公开(公告)日：1990-01-08
申请号：JP22158488
申请日：1988-09-05
申请人： MITSUBISHI RAYON CO
发明人： OHORI YASUSHI , ITO HAJIME , AOKI KUNIHIRO
IPC分类号： B01D69/10 , B01D71/26 , B01D71/28 , B01D71/44 , B01D71/76 , C08J9/36 , C08L23/02 , G01N30/52
摘要： PURPOSE:To enhance the heat resistance of a heat resistant porous membrane and to prevent a change in the shape by holding a cross-linked polymer consisting of a specified polymerizable monomer, styrene and divinylbenzene, on the surface of polyethylene to form the porous membrane. CONSTITUTION:A polymerizable monomer A' contg. an acid anhydride or two esterified carboxyl groups and monomers including styrene and divinylbenzene are held on at least part of the surface of a porous polyolefin membrane and heated to form a cross-linked polymer. The acid anhydride or the esterified carboxyl groups in the polymer are then hydrolyzed to produce a hydrophilic porous membrane. The monomer A' and monomers including divinylbenzene may be used in place of the monomer A' and the monomers including styrene and divinylbenzene.

84. 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.

85. 发明专利

JPS63175616A GAS PERMSELECTIVE COMPOSITE MEMBRANE 失效
公开(公告)号：JPS63175616A
公开(公告)日：1988-07-20
申请号：JP465587
申请日：1987-01-12
申请人： MITSUBISHI RAYON CO
发明人： HOSOKAWA HIROSHI , AOKI KUNIHIRO , MINAMI SHUNSUKE
IPC分类号： B01D53/22
摘要： PURPOSE:To enhance the permselectivity of O2, by forming a layer composed of polypyrrole or a derivative thereof to at least one surface of a porous base material. CONSTITUTION:A layer, for example, composed of polypyrrole having a repeating unit represented by formula (wherein R1-R4 are H or an alkyl group) or a derivative thereof is formed to one surface of a porous base material such as an ultrafiltration membrane wherein a polysulfone membrane is formed on a nonwoven fabric to obtain a composite membrane. At this time, an aqueous FeCl3 solution is held to one surface of the porous base material and the vapor of pyrrole is brought into contact with the other surface thereof to make it possible to obtain a uniform composite membrane. The obtained composite membrane has high O2-permselectivity and becomes high in the separation factor of N2 and O2.

86. 发明专利

JPS6396263A MOLDING HAVING VAPOR DEPOSITED COMPLEX FILM ON SURFACE 失效
公开(公告)号：JPS6396263A
公开(公告)日：1988-04-27
申请号：JP24090386
申请日：1986-10-09
申请人： MITSUBISHI RAYON CO
发明人： AOKI KUNIHIRO , MINAMI SHUNSUKE , IWASAKI TADASHI
IPC分类号： C23C14/12
摘要： PURPOSE:To obtain excellent oxygen adsorption and desorption power with the complex alone, by forming a vapor deposited film of an org. cobalt (II) complex having specific structure on the surface of a molding. CONSTITUTION:The thin film of the org. cobalt (II) complex having the structure expressed by the formula is formed by vacuum deposition, etc., on the surface of the molding. In the formula, R1, R2 are groups selected from H, OCH3 and F. The molding is applicable to iron, Al, copper, the alloy thereof, glass ceramics and resins such as polyester. The formed thin complex film has the excellent oxygen adsorption and desorption power in the independent state without having ligand such as water or pyridine. The utilizing efficiency of the complex is high and the ease of handling is excellent as the molding.

87. 发明专利

JPS6238443B2 失效
公开(公告)号：JPS6238443B2
公开(公告)日：1987-08-18
申请号：JP10180880
申请日：1980-07-24
申请人： MITSUBISHI RAYON CO
发明人： SHINKAI YUKIO , OOTANI TAKEJI , AOKI KUNIHIRO , KOBAYASHI TADAO
IPC分类号： D01F2/28

88. 发明专利

JPS62142191A METHOD FOR REDUCTION 失效
公开(公告)号：JPS62142191A
公开(公告)日：1987-06-25
申请号：JP28078385
申请日：1985-12-13
申请人： MITSUBISHI RAYON CO
发明人： AOKI KUNIHIRO , MINAMI SHUNSUKE
IPC分类号： C07F15/06
摘要： PURPOSE:To reduce a solution of hydroxo cobalt (III) Schiff base complex to cobalt (II) Schiff salt complex simply and efficiently, useful as an oxidizing catalyst, etc., in the absense of oxygen and a protonic compound under heating at a specific temperature. CONSTITUTION:A solution containing a hydroxo cobalt (III) Schiff base complex (preferably compound shown by formula I, etc.,) is heated in the absence of oxygen (in the case of a solvent containing a protonic compound) or a protonic compound at 30-200 deg.C (preferably 40-100 deg.C) and reduced to cobalt (II) Schiff base shown by formula II. Acetonitrile. etc., is preferable as a solvent.

89. 发明专利

JPS62135484A COBALT COMPLEX COMPOUND 失效
公开(公告)号：JPS62135484A
公开(公告)日：1987-06-18
申请号：JP27619985
申请日：1985-12-09
申请人： MITSUBISHI RAYON CO
发明人： AOKI KUNIHIRO , MINAMI SHUNSUKE
IPC分类号： C07F15/06
摘要： NEW MATERIAL:A compound of formula I (n is 2, 3). EXAMPLE:Cobalt (II) sartoriene of formula II. USE:It is used as an oxygen separator, because it can adsorb and desorb oxygen. PREPARATION:A diamine of formula III and salicyl aldehyde are dissolved in methanol, preferably at 1:2 molar ratio. The resultant solution is usually heated up to 50-100 deg.C to effect dehydration to give a Schiff base of formula IV. The product is dissolved in a solvent and refluxed in the presence of an alkaline solution, then a cobalt (II) salt such as cobalt (II) chloride is added to the solution in a nitrogen atmosphere to give the compound of formula I.

90. 发明专利

JPS6134740B2 失效
公开(公告)号：JPS6134740B2
公开(公告)日：1986-08-09
申请号：JP15998879
申请日：1979-12-10
申请人： MITSUBISHI RAYON CO
发明人： SHINKAI YUKIO , OOTANI TAKEJI , AOKI KUNIHIRO , KOBAYASHI TADAO
IPC分类号： C08L1/00 , C08L1/12

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