Patents Assigned to Mitsui Chemical, Inc.
  • Publication number: 20130213471
    Abstract: An encapsulating material for solar cell excellent in a balance among properties including transparency, flexibility, adhesiveness, heat resistance, appearance, crosslinking properties, electrical properties and calender moldability. The encapsulating material includes an ethylene/?-olefin copolymer satisfying the following requirements: (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from ?-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is equal to or more than 2 g/10 minutes and less than 10 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.
    Type: Application
    Filed: October 31, 2011
    Publication date: August 22, 2013
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shigenobu Ikenaga, Fumito Takeuchi, Keiji Watanabe, Tomoaki Ito
  • Patent number: 8513362
    Abstract: To provide a polyolefin polymer having a polar group represented by Formula (i) produced by modifying, with a high modification ratio, a double bond in a polymer having the double bond at one terminal, both terminals, or at the inside of a polymer chain thereof that is obtained by a known method; a method for producing the polyolefin polymer; and a water dispersion material and a mold release agent composition each containing the polyolefin polymer, wherein, PO, A, B, D, E, d, e, M, i, j, and n are defined as in the application.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: August 20, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Makoto Suzuki, Naoshi Nagai
  • Patent number: 8513368
    Abstract: An object of the invention is to provide copolymers which have a double bond in a side chain and are substantially free of unsaturated bonds in the main chain, copolymers which have a cyclic structure and are substantially free of unsaturated bonds in the main chain, and processes for economically synthesizing these copolymers.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: August 20, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kenji Michiue, Sei-ichi Ishii, Makoto Mitani, Takeshi Karino
  • Patent number: 8513341
    Abstract: A polylactic acid resin composition containing 100 parts by weight of a polylactic acid compound (A) having a specific moiety represented by the formula (1): —X1—R1—X2— and having a weight average molecular weight (Mw) of 5,000 to 500,000, 5 to 2,000 parts by weight of a lactic acid resin (B) and 0.1 to 10 parts by weight of at least one kind of a transparent nucleating agent (C) selected from carboxylic acid amides, aliphatic alcohols and aliphatic carboxylic acid esters. In the formula (1), X1, X2 and R1 are defined. The resin composition can exhibit improved heat resistance (high crystallinity) and transparency without impairing the rigidity of the polylactic acid resin. A molded article composed of the resin composition is also provided.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: August 20, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tatsuhiro Urakami, Choujirou Higuchi
  • Patent number: 8512610
    Abstract: The nonwoven fabric sheet of the present invention is characterized by a porosity in the range of 0.3 to 0.7 and an average pore size in the range of 0.5 ?m to 5.0 ?m. The nonwoven fabric sheet of the present invention preferably has a maximum pore size (?m)/average pore size (?m) ratio of 1.30 or lower. The nonwoven fabric sheet of the present invention is obtained by press-molding a nonwoven fabric at a temperature lower than the melting point of the thermoplastic resin which constitutes the nonwoven fabric sheet. According to the present invention, there is provided a nonwoven fabric sheet that has a high porosity, small uniform pore sizes and excellent productivity, which can suitably be used in various applications such as filters, light diffusing material, liquid absorber and heat insulating materials; and a method for producing the nonwoven fabric sheet.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: August 20, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuya Okada, Yasuhiro Sudou
  • Publication number: 20130209805
    Abstract: A method of production of ethylene-based polymer particles includes the steps of: homopolymerizing ethylene or copolymerizing ethylene and a linear or branched ?-olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst including: (A) fine particles having an average particle diameter greater than or equal to 1 nm and less than or equal to 300 nm obtained at least by the following two steps: (Step 1) causing contact between a metal halide and an alcohol in a hydrocarbon solvent; (Step 2) causing contact between a component obtained by (Step 1) and an organoaluminum compound and/or an organoaluminumoxy compound; and (B) a transition metal compound represented in General Formula (I) or (II), and (E) an intrinsic viscosity [?] of the ethylene-based polymer particles, measured in decalin at 135° C., is from 5 to 50 dL/g.
    Type: Application
    Filed: July 15, 2011
    Publication date: August 15, 2013
    Applicant: MITSUI CHEMICALS, INC
    Inventors: Fumiaki Nishino, Takeshi Karino, Takayuki Onogi, Susumu Murata, Naoto Matsukawa, Yasunori Yoshida, Yasushi Nakayama
  • Patent number: 8507158
    Abstract: Provided is a pellicle that has appropriate membrane strength, high resistance to chemicals, and a low degree of sulfate ion generation and outgassing. A provided pellicle frame supports the outer rim of a pellicle membrane, and an epoxy resin coating is formed on the surface of the pellicle frame. In the infrared absorption spectrum of said epoxy resin coating, the ratio of the absorbance of a peak in the range between 1450 cm?1 and 1550 cm?1 to the absorbance of a peak in the range between 1200 cm?1 and 1275 cm?1 is at least 0.5 and at most 3; also, the ratio of the absorbance of a peak in the range between 1450 cm?1 and 1550 cm?1 to the absorbance of a peak in the range between 905 cm?1 and 930 cm?1 is at least 1 and less than 7.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: August 13, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shuichi Murakami, Takashi Kozeki
  • Patent number: 8507603
    Abstract: A solvent dispersion of a composite resin which comprises a solvent and a composite resin comprising a thermoplastic elastomer (A) and a polymer of copolymerizable monomers (B) comprising a monomer having an ?,?-monoethylenically unsaturated group and other copolymerizable monomer(s), wherein the thermoplastic elastomer (A) is a propylene-based elastomer having a molecular weight distribution (Mw/Mn) of not more than 3 as measured by gel permeation chromatography (GPC), and the copolymerizable monomers (B) include at least one monomer containing no functional groups; and uses of the dispersion. The dispersion can be used to provide a coating material, primer, adhesive, additive, binder, film, and primer for strippable paints and traffic paints, which have excellent adhesiveness to various materials.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: August 13, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Keiichi Asami, Kunihiko Takeuchi
  • Patent number: 8501646
    Abstract: A non-woven fabric laminate that is excellent in strechability, flexibility, and bulkiness, and that is less sticky and is suitable for a mechanical fastening female material. The non-woven fabric laminate includes a mixed fiber spunbonded non-woven fabric and a non-woven fabric comprising a crimped fiber that is laminated on at least one face of the mixed fiber spunbonded non-woven fabric, which includes a continuous fiber of a thermoplastic elastomer (A) in the range of 10 to 90% by weight and a continuous fiber of a thermoplastic resin (B) in the range of 90 to 10% by weight (where (A)+(B)=100% by weight). The non-woven fabric laminate can be suitably used for a sanitary material and other materials. More specifically, there can be mentioned for instance an absorbent article such as a disposable diaper and a menstrual sanitary product as a sanitary material.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 6, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shigeyuki Motomura, Kenichi Suzuki, Kazuhiko Masuda, Hisashi Morimoto, Naosuke Kunimoto
  • Patent number: 8496859
    Abstract: A method of producing a plastic polarized lens with excellent processability and the like by injecting a mixture of a specified isocyanate compound and a specified active hydrogen compound into a lens-forming mold wherein a polarized film containing a thermoplastic polyester is fixed, followed by polymerization and curing.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: July 30, 2013
    Assignees: Mitsui Chemicals, Inc., Hopnic Laboratory Co., Ltd.
    Inventors: Toru Miura, Yoshimitsu Aiiso
  • Publication number: 20130178575
    Abstract: The cyclic olefin copolymer of the present invention contains (A) a repeating unit derived from one or more kinds of olefins represented by the following General Formula (I), (B) a repeating unit derived from a cyclic non-conjugated diene represented by the following General Formula (III), and (C) a repeating unit derived from one or more kinds of cyclic olefins represented by the following General Formula (V), wherein when a total mole number of the repeating units is regarded as 100 mol %, the (B) repeating unit derived from a cyclic non-conjugated diene is contained in an amount of 19 mol % to 36 mol %.
    Type: Application
    Filed: October 4, 2011
    Publication date: July 11, 2013
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Yasunori Yoshida, Takashi Unezaki
  • Publication number: 20130171826
    Abstract: The present invention provides a semiconductor device production method and a rinse used in the production method. The method includes: a sealing composition application process in which a semiconductor sealing layer is formed by applying, to at least a portion of a surface of a semiconductor substrate, a semiconductor sealing composition that includes a resin having a cationic functional group and a weight average molecular weight of from 2,000 to 600,000, wherein a content of sodium and a content of potassium are 10 mass ppb or less on an elemental basis, respectively; and, subsequently, a rinsing process in which the surface of the semiconductor substrate on which the semiconductor sealing layer has been formed is rinsed with a rinse having a pH at 25° C. of 6 or lower.
    Type: Application
    Filed: September 8, 2011
    Publication date: July 4, 2013
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shoko Ono, Kazuo Kohmura, Hirofumi Tanaka
  • Publication number: 20130167911
    Abstract: Disclosed is an encapsulating material for solar cell containing an ethylene/?-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from ?-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is from 10 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.
    Type: Application
    Filed: October 7, 2011
    Publication date: July 4, 2013
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shigenobu Ikenaga, Fumito Takeuchi, Keiji Watanabe, Jun Tokuhiro, Takanobu Murofushi, Kazuhiro Yarimizu, Tomoaki Ito, Nobuhiro Maruko
  • Publication number: 20130171514
    Abstract: A non-aqueous electrolyte solution containing a cyclic sulfate compound represented by formula (I) is provided, wherein in formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III); R2 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a group represented by formula (II), or a group represented by formula (III); and in formula (II), R3 represents a halogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogenated alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or a group represented by formula (IV).
    Type: Application
    Filed: October 21, 2011
    Publication date: July 4, 2013
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Shigeru Mio, Mitsuo Nakamura, Kaichiro Haruta, Hidenobu Nogi, Satoko Fujiyama, Takashi Hayashi, Hidetoshi Tsunoda
  • Patent number: 8470449
    Abstract: It is an object of the present invention to provide a propylene-based polymer composition which is excellent in transparency and heat resistance (particularly, heat resistance at high heat deformation temperature) and is free from occurrence of stickiness even when it is used at a high temperature for a long period of time. The propylene-based polymer composition of the invention comprises (A) a propylene-based polymer (PP) satisfying the following requirements (1) and (2), in an amount of 1 to 99 parts by weight, and (B) a propylene/ethylene/?-olefin copolymer satisfying the following requirements (I) to (IV), in an amount of 99 to 1 part by weight, with the proviso that the total amount of the component (A) and the component (B) is 100 parts by weight; (1) the polymer (A) has a melting point (Tm), as measured by a differential scanning calorimeter (DSC), of not lower than 110° C. but not higher than 170° C.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: June 25, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
  • Publication number: 20130153880
    Abstract: To provide a resin composition for sealing an optical semiconductor, which is a raw material for a sealing resin layer having good curability and excellent storage stability; preferably a raw material for a sealing resin layer further having excellent weather resistance. The surface sealant for an optical semiconductor of Embodiment 1 according to the present invention contains epoxy resin (a) having two or more epoxy groups in a molecule, and metal complex (b1) which contains at least one metal ion selected from the group consisting of Zn, Bi, Ca, Al, Cd, La and Zr, a tertiary amine capable of forming a complex with the metal ion and having no N—H bond and an anionic ligand having a molecular weight of 17 to 200, in which the surface sealant has a viscosity of 10 to 10000 mPa·s, as measured by E-type viscometer at 25° C. and 1.0 rpm.
    Type: Application
    Filed: June 22, 2012
    Publication date: June 20, 2013
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Yugo Yamamoto, Jun Okabe, Setsuko Oike
  • Publication number: 20130155507
    Abstract: The plastic polarized lens (10) of the present invention contains a polarized film (12) and layers (resin layers) (14a and 14b) comprising a thiourethane-based resin stacked over both surfaces of the polarized film (12), and the polarized film contains an organic coloring compound represented by the following general formula (1).
    Type: Application
    Filed: August 10, 2011
    Publication date: June 20, 2013
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Akinori Ryu, Seiichi Kobayashi, Hiroyuki Kamio, Yoshiharu Kobayashi, Mitsuru Sakai, Yoshimitsu Aiiso
  • Patent number: 8466238
    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: Grant
    Filed: December 26, 2008
    Date of Patent: June 18, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroaki Tamatani, Mitsuaki Chida, Yugo Yamamoto, Yuichi Ito, Takashi Nakano, Naritoshi Yoshimura
  • Patent number: 8460414
    Abstract: Disclosed is a polishing slurry which enables to suppress damages to an under layer while securing an adequate polishing rate. The polishing slurry contains a resin (A) having an amide group and an organic resin (B).
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: June 11, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Akinori Etoh, Setsuko Oike, Tomokazu Ishizuka, Shigeharu Fujii, Kiyotaka Shindo
  • Patent number: 8461238
    Abstract: The process for producing an internal mold release agent for an optical material of the present invention includes a step of heating, to a range of 80° C. to 140° C., a composition including (a) a phosphoric ester compound, and (b) an alcohol compound containing an aliphatic alcohol having 1 to 10 carbon atoms and/or aromatic alcohol, when the total amount of (a) and (b) is 100% by weight, the alcohol compound (b) is included in an amount equal to or more than 2.5% by weight.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: June 11, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Nobuo Kawato, Mamoru Tanaka