Patents Assigned to Mitsui
  • Patent number: 7811664
    Abstract: A fluororesin coating film for improved permeation resistance that maintains excellent wear resistance and also products containing such film. The fluororesin coating has at least two layers that are formed on a substrate where at least one of the layers contains filler with a new Mohs hardness of ?7 and a tetrafluoroethylene-perfluoro (alkyl vinyl ether) copolymer and tetrafluoroethylene-perfluoro (alkyl vinyl ether) copolymer layer directly below the layer described above.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: October 12, 2010
    Assignees: E. I. du Pont de Nemours and Company, duPont-Mitsui Fluorochemicals Co Ltd
    Inventors: Tomohito Sasaki, Matsunori Takada
  • Publication number: 20100255302
    Abstract: [Problem] To provide an adhesive film or sheet for protecting the surfaces of articles having proper initial adhesive force, sufficiently suppressing an increase in the adhesive force after aged, maintaining a suitable adhesive force in a proper range despite of being subjected to thermal hysteresis to some extent or even after preserved for extended periods of time and, as desired, being capable of imparting a high degree of transparency to the adhesive film or sheet. [Means for Solution] An adhesive film or sheet comprising a mixed resin of an ethylene/unsaturated ester copolymer resin (A) and a highly crystalline ethylene or propylene polymer or copolymer resin (B) having a melting point of not lower than 115° C.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 7, 2010
    Applicant: DU PONT-MITSUI POLYCHEMICALS CO., LTD
    Inventors: Masataka Aoyama, Yoshitaka Hironaka, Hisao Gonohe
  • Publication number: 20100253213
    Abstract: The invention aims to provide latent curing agents which exert high low-temperature curing properties when used together with ionically polymerizable compounds and which exhibit high storage stability at room temperature. Latent curing agents for ionically polymerizable compounds which agents each contain a hydroxyl-free amine imide compound having an N—N bond energy of 100 to 210 kJ/mol as determined by B3LYP functional theory method.
    Type: Application
    Filed: December 26, 2008
    Publication date: October 7, 2010
    Applicant: MITSUI CHEMICALS, INC
    Inventors: Hiroaki Tamatani, Mitsuaki Chida, Yugo Yamamoto, Yuichi Ito, Takashi Nakano, Naritoshi Yoshimura
  • Publication number: 20100256425
    Abstract: It is an object of the present invention to provide a process for producing propylene glycol from glycerol as a raw material without the necessity for a step of gasifying glycerol. The process for producing propylene glycol of the present invention comprises a step of subjecting glycerol to catalytic hydrogenation in the presence of a catalyst A containing zinc oxide, silica, and at least one of copper and copper oxide.
    Type: Application
    Filed: October 28, 2008
    Publication date: October 7, 2010
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hiroshi Kouno, Shuji Ozawa, Naritoshi Yoshimura
  • Publication number: 20100252477
    Abstract: [Problem] It is an object to provide a composite container in which a shape and a profile of a resin hollow molding body can be discriminated with clarity in the case in which a visual contact is carried out to the inside resin hollow molding body via an outside transparent resin sheathing body, whereby a design property can be displayed to a satisfactory extent, and in which a design property can be displayed to a satisfactory extent even by a combination of the resin hollow molding body and the outside transparent resin sheathing body.
    Type: Application
    Filed: November 11, 2008
    Publication date: October 7, 2010
    Applicant: Du Pont-Mitsui Polychemicals Co., Ltd.
    Inventors: Sadaki Yamamoto, Kazuyuki Oogi, Masanobu Sato
  • Publication number: 20100255255
    Abstract: There is provided a sheet for barrier leg cuffs for use in absorbent products, such as disposal diapers. The sheet has excellent air permeability and is highly effective in preventing the leakage of loose feces. The sheet for barrier leg cuffs is made from a continuous-fiber nonwoven fabric having a ratio of thickness to basis weight equal to or higher than 0.015 mm/(g/m2). Preferably, the sheet for barrier leg cuffs is made from a continuous-fiber nonwoven fabric containing a fiber mixture of thermoplastic elastomer continuous fiber and extensible continuous fiber. The sheet for barrier leg cuffs according to the present invention has air permeability, is highly effective in preventing the leakage of loose feces, and is flexible and hence excellent in terms of feel against skin; thus, it can be suitably used in barrier leg cuffs of disposable diapers, sanitary products, and other absorbent products.
    Type: Application
    Filed: November 12, 2008
    Publication date: October 7, 2010
    Applicant: Mitsui Chemicals Inc.
    Inventors: Yoshihisa Kawakami, Akio Matsubara
  • Patent number: 7805887
    Abstract: A clutch mechanism and a worm wheel are disposed in such a manner as to be aligned or superposed on each other via a base plate held therebetween. A circular swollen portion is formed on the base plate in such a manner as to project from one side to another side of the base plate. The swollen portion is disposed in such a manner as to face the worm wheel, and a side of a field core of a clutch mechanism is accommodated within a dish-shaped recess formed on a rear side of the swollen portion.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: October 5, 2010
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventor: Shinichiro Kita
  • Patent number: 7807331
    Abstract: Resist compositions comprising a hydrogenated ring-opening metathesis polymer bearing an alicyclic structure in its backbone and comprising structural units having an oxygen atom incorporated as part of the cyclic structure exhibit a high resolution and minimal proximity bias upon ArF excimer laser lithography and have high etching resistance.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: October 5, 2010
    Assignees: Shin-Etsu Chemical Co., Ltd., Mitsui Chemicals, Inc.
    Inventors: Tomohiro Kobayashi, Takeshi Kinsho, Takeru Watanabe, Tadahiro Sunaga, Yuichi Okawa
  • Patent number: 7807267
    Abstract: The present invention relates to a method for modifying a porous film mainly having Si—O bonds wherein a thermal treatment is conducted without using a metal catalyst by bringing an organic silicon compound into contact with the porous film. The organic silicon compound includes one or more Si—X—Si bond unit (wherein X represents O, NR, CnH2n, or C6H4; R represents CmH2m+1 or C6H5; m is an integer between 1 and 6; and n is 1 or 2) and two or more Si-A bond units (wherein A represents H, OH, OCeH2e+1 or a halogen atom and can be the same or different within a single molecule; and e is an integer between 1 and 6). Since the porous film obtained by this method is excellent in the hydrophobic property and the mechanical strength, it can be used as an optically functional material or an electronically functional material. The porous film is especially useful as a semiconductor material, and can be preferably used as an interlayer insulating film in a semiconductor device.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: October 5, 2010
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuo Kohmura, Shunsuke Oike, Takeshi Kubota, Masami Murakami, Yoshito Kurano
  • Publication number: 20100243435
    Abstract: Provided is a sputtering target for a magnetic recording film, in which film formation efficiency and film characteristics can be improved by suppressing growth of crystal grains, reducing magnetic permeability, and increasing density. A method for manufacturing such a sputtering target is also provided. The sputtering target is composed of a matrix phase which includes Co and Pt and a metal oxide phase for example. The sputtering target has a magnetic permeability in the range of 6 to 15 and a relative density of 90% or more.
    Type: Application
    Filed: October 21, 2008
    Publication date: September 30, 2010
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Kazuteru Kato
  • Publication number: 20100244281
    Abstract: Objects of the present invention is to provide a flexible printed wiring board which has a simple structure, which can be produced at low cost, and which can effectively dissipate heat generated by semiconductor chips, and to provide a semiconductor device employing the flexible printed wiring board. The flexible printed wiring board of the invention has an insulating substrate, and a wiring pattern formed of a conductor layer and provided on one surface of the insulating substrate, wherein the wiring pattern includes inner leads for mounting a semiconductor chip and outer leads for input and output wire connection, and a metal layer is adhered to the wiring pattern via an insulating adhesion layer.
    Type: Application
    Filed: March 30, 2010
    Publication date: September 30, 2010
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Katsuhiko HAYASHI, Tatsuo KATAOKA
  • Publication number: 20100247939
    Abstract: [Problem] It is an object to provide an unstretched film and a sheet that are excellent in an antistatic property and transparency, a resin composition that is used in producing the unstretched film or the sheet and a potassium ionomer that is contained in the composition. [Means for Solving Problem] Disclosed is a potassium ionomer of a polymer or a polymer composition that contains (a) an ethylene unit in the range of 30 to 60% by weight, (b) a propylene unit in the range of 30 to 60% by weight, (c) a butene unit in the range of 2 to 10% by weight, (d) a (meth)acrylic acid ester unit in the range of 0 to 10% by weight, and (e) a (meth)acrylic acid unit in the range of 5 to 15% by weight (with the total of the component units (a) to (e) being 100% by weight). The potassium ionomer has a potassium ion density in the range of 0.5 to 1.5 mmol/g.
    Type: Application
    Filed: December 5, 2008
    Publication date: September 30, 2010
    Applicant: DU PONT-MITSUI POLYCHEMICALS CO., LTD.
    Inventors: Daisuke Matsuzaki, Kaoru Suzuki, Koki Akiyama
  • Publication number: 20100243952
    Abstract: In order to provide a novel spinel type lithium transition metal oxide (LMO) having excellent power performance characteristics, in which preferably both the power performance characteristics and the cycle performance at high temperature life characteristics may be balanced, a novel spinel type lithium transition metal oxide with excellent power performance characteristics is proposed by defining the inter-atomic distance Li—O to be 1.978 ? to 2.006 ? as measured by the Rietveld method using the fundamental method in a lithium transition metal oxide represented by the general formula Li1+xM2?xO4 (where M is a transition metal consisting of three elements Mn, Al and Mg and x is 0.01 to 0.08).
    Type: Application
    Filed: October 23, 2008
    Publication date: September 30, 2010
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Naoki Kumada, Shinya Kagei, Yoshimi Hata, Kenji Sasaki, Yasuhiro Ochi, Keisuke Miyanohara
  • Publication number: 20100245030
    Abstract: It is an object to provide processes for the production of thin-film sensors whereby crystals are strongly oriented without cost-adding steps such as heating and variations in electrical properties are small among the obtainable products. A process of producing a thin-film sensor is a process of producing a thin-film sensor that include an insulating substrate and an electrical resistor which is made of a metal and is provided on the insulating substrate, the process including a step of forming the electrical resistor by sputtering the metal while applying a negative direct-current voltage to the insulating substrate.
    Type: Application
    Filed: March 28, 2007
    Publication date: September 30, 2010
    Applicants: MITSUI MINING & SMELTING CO., LTD., TOHOKU UNIVERSITY
    Inventors: Makoto Ikeda, Mitsuhiro Wada, Shinichi Inoue, Minoru Isshiki, Jae-Won Lim, Joon Woon Bae
  • Patent number: 7803888
    Abstract: A novel olefin-based polymer has excellent thermal resistance, as well as excellent balance among various properties. The olefin-based polymer is an olefin-based polymer comprising 50 to 100% by weight of a constituent unit derived from 4-methyl-1-pentene, and 0 to 50% by weight of a constituent unit derived from at least one olefin selected from olefins having 2 to 20 carbon atoms except 4-methyl-1-pentene, and having the following properties: i) the diad isotacticity is 70% or greater, ii) the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) as measured by gel permeation chromatography (GPC) is in the range of 1.0 to 3.5, and iii) the intrinsic viscosity [?] is 0.5 (dl/g) or greater.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: September 28, 2010
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Nobuo Kawahara, Shinichi Kojoh, Shingo Matsuo, Hideyuki Kaneko, Tomoaki Matsugi, Norio Kashiwa, Munehito Funaya, Naritoshi Hirota, Tooru Tanaka, Toshiyuki Hirose, Nobuhisa Mikawa, Kouichi Kizu, Keiji Okada
  • Publication number: 20100240862
    Abstract: Disclosed is a metal thietane compound represented by the following general formula (120), (wherein, in the above general formula (120), M is a member selected from the group consisting of Bi, Sb, Ti, Zr and Ta; X1 and X2 are each independently a sulfur atom or an oxygen atom; R1 is a divalent organic group; the bond between M and T shown by a dotted line and a solid line represents a single or double bond; m is an integer of 0 or 1 or more; n is the number of valence of M; and p is an integer of equal to or more than 1 and equal to or less than n, provided that when r is 1, q is 0 and Y is a monovalent inorganic or organic group; when r is 1 and n-p-q is 2 or more, a plurality of Ys contained are each independently selected from monovalent inorganic or organic groups; when r is 1 and n-p-q is 2 or more, a plurality of Ys may be bonded to each other to form a ring containing M; when r is 2, n-p-q is 1 or 2 and Y is a divalent group; when r is 2 and n-p-q is 2, two Ys may form a ring together with two Ms;
    Type: Application
    Filed: February 19, 2008
    Publication date: September 23, 2010
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Masakazu Murakami, Tomoyuki Ando, Hironori Kuboi, Hidetoshi Hayashi, Osamu Kohgo, Seiichi Kobayashi
  • Publication number: 20100234810
    Abstract: It is an object of the present invention to provide a polypropylene resin for syringe that can be used as a raw material for syringe that is excellent in sanitary property, heat resistance and transparency and hardly elutes low molecular weight substance and that can prevent formation of foam during molding, achieve long-run moldability and being prevented from scratches when removed from a core molding die in injection molding at satisfactory levels that have not been achieved conventionally. The polypropylene resin for syringe of the present invention comprises an ethylene-propylene block copolymer (A) having a melt flow rate (ASTM D 1238, 230° C., 2.16 kg load) of 10 to 60 g/10 min and being constituted of 85 to 97% by weight of a room-temperature n-decane-insoluble portion (Dinsol) and 3 to 15% by weight of a room-temperature n-decane-soluble portion (Dsol) (the total amount of the Dinsol and the Dsol is 100% by weight), wherein the Dinsol and the Dsol satisfy specific requirements.
    Type: Application
    Filed: September 22, 2008
    Publication date: September 16, 2010
    Applicants: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventors: Takashi Arai, Hiroyuki Uekita, Keita Itakura, Satoshi Hashizume
  • Publication number: 20100229944
    Abstract: The present invention provides an encapsulating material for a solar cell, which is easy to prepare a solar cell module, and excellent in processability, insulating property, non-corrosion property, transparency, heat resistance, flexibility and the like, and a solar cell module prepared by using the same. The encapsulating material for a solar cell is one consisting of a cross-linkable resin composition (A) containing an ethylene-(meth)acrylic ester copolymer as a base polymer, an organic peroxide and a crosslinking aid wherein the decomposition temperature (temperature for a half-life period of one hour) of the organic peroxide is equal to or lower than 150° C., and total compounding amount of the organic peroxide and the crosslinking aid, is in a range of from 0.5 to 5 parts by weight per 100 parts by weight of the base polymer, and compounding ratio of the organic peroxide and the crosslinking aid (organic peroxide/crosslinking aid) is in a range of from 1/5 to 1/0.1, in weight ratio.
    Type: Application
    Filed: February 16, 2007
    Publication date: September 16, 2010
    Applicant: Du Pont-Mitsui Polychemicals Co., Ltd.
    Inventors: Koichi Nishijima, Yasuhisa Hosoai, Youichi Shinya
  • Publication number: 20100233415
    Abstract: The present invention is to provide an optical recording medium which is capable of performing good recording and reproducing by using a laser having a wavelength of 300 to 900 nm, a novel azo metal chelate compound, and a novel azo compound. Furthermore, the present invention is to provide an optical recording medium having an azo metal chelate compound in a recording layer.
    Type: Application
    Filed: January 19, 2007
    Publication date: September 16, 2010
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Taizo Nishimoto, Tsutomu Ishida, Kazuhiro Seino, Masataka Miyasato, Kenichi Fuji, Masao Imai, Eiichi Takahashi, Keiji Ueno, Hideo Usui, Yoshiaki Aso, Akira Ogiso, Rihoko Suzuki, Satoshi Kinoshita, Akihiro Kohsaka, Kenichi Kato, Takafumi Yoshida, Hiroyuki Sasaki, Yojiro Kumagae
  • Publication number: 20100234498
    Abstract: Disclosed is an internal mold release agent for the production of polythiourethane optical materials, which is obtained by mixing an acidic phosphate ester compound and at least one metal selected from the group consisting of Zn, Cu, Fe, Ga, Bi, Al and Zr. The internal mold release agent for the production of polythiourethane optical materials contains the metal in an amount of 0.01 to 20 weight %.
    Type: Application
    Filed: February 19, 2007
    Publication date: September 16, 2010
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masanori Iwazumi, Nobuo Kawato, Hidetoshi Hayashi, Mamoru Tanaka, Seiichi Kobayashi