Patents Assigned to Nippon Paper Chemicals Co., Ltd.
  • Patent number: 8758877
    Abstract: An antiglare hard coat film is provided in which light transmittance is high without giving antiglare properties more than necessary, a haze value is low, transparency is excellent, image clarity is high, glare of an image is suppressed, whitishness (white blur) of the film is reduced, contrast deterioration is suppressed, and visibility of the display is improved as compared with prior-art antiglare films. This antiglare hard coat film is formed by providing an antiglare hard coat layer containing organic particulates and a resin on a transparent film. When an average value of height in an evaluation region on the surface of the antiglare hard coat film is set to zero (0), a maximum sectional height represented by a difference between a height maximum value in the evaluation region and a height minimum value in the evaluation region is 0.6 ?m or less.
    Type: Grant
    Filed: March 28, 2010
    Date of Patent: June 24, 2014
    Assignee: Nippon Paper Chemicals Co., Ltd.
    Inventors: Takeshi Hotta, Takeo Suzuki, Toshihide Fukuyama, Yusuke Sugiyama
  • Patent number: 8748507
    Abstract: It is an object of the present invention to provide an active energy ray curable resin composition exhibiting good adhesion to a polyolefin-based resin base material. More specifically, there is provided an active energy ray curable resin composition comprising: a block copolymer (C) that includes a polymer block (A) composed mainly of an olefin-based monomer unit and a polymer block (B) composed of a vinyl-based monomer unit having a carboxyl group, a carboxylic anhydride group, or a sulfonic acid group and/or a second vinyl-based monomer unit copolymerizable with the aforementioned vinyl-based monomer unit, the block copolymer (C) having a weight-average molecular weight from 5,000 to 100,000; and an active energy ray curable compound (D).
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: June 10, 2014
    Assignee: Nippon Paper Chemicals Co., Ltd.
    Inventors: Minoru Yada, Yuuki Kokufu, Yuu Takata, Hideo Hosaka, Kenichi Fujino
  • Patent number: 8519046
    Abstract: It is an object of the present invention to provide a polyolefin resin dispersion composition in which the dispersed resin is stable to water or a hydrophilic substance, and which has an adhesive property to nonpolar substrates, in particular poorly adhesive polyolefin-based substrates whose surface has not been treated, is excellent in a coating property, exhibits an excellent adhesive property through drying and press bonding with heat at a temperature in a wide range regardless of whether the temperature is low or high, is excellent in water resistance and gasohol resistance and is less tacky. That is, the present invention provides the dispersed resin composition containing (a) a polyolefin resin, (b) a (meth)acrylic acid homopolymer or copolymer having a side chain comprising an esterified alkyl group, (c) a basic substance and (d) water or a hydrophilic substance, and a process for producing the same.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: August 27, 2013
    Assignee: Nippon Paper Chemicals Co., Ltd.
    Inventors: Takayuki Hirose, Naosuke Komoto, Kensho Okayama, Koji Masumoto, Naoko Nagaoka
  • Patent number: 8236900
    Abstract: It is an object of the present invention to provide a modified polyolefin resin adhesive agent which is excellent in adhesiveness to a nonpolar substrate, particularly a poorly adhesive polyolefin substrate to which no surface treatment has been given and to a polar substrate, develops the excellent adhesiveness by drying or thermal compression bonding at relatively low temperature, and exhibits a low tack. That is, the present invention provides the modified polyolefin resin obtained by modifying a polyolefin resin with (A) a polarity imparting agent which is at least one selected from chlorine, unsaturated carboxylic acid, derivatives and anhydrides of unsaturated carboxylic acid and radical polymerizable monomers; and (B) an ethylene-?-olefin copolymer having an unsaturated bond at one end, and use of said modified polyolefin resin as an aqueous resin composition or an organic solvent resin composition.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: August 7, 2012
    Assignees: Nippon Paper Chemicals Co., Ltd., Mitsui Chemicals, Inc.
    Inventors: Yasutaka Watanabe, Kenichi Fujino, Hidetoshi Yoshioka, Naoshi Nagai, Sadahiko Matsuura
  • Publication number: 20120141736
    Abstract: An antiglare hard coat film is provided in which light transmittance is high without giving antiglare properties more than necessary, a haze value is low, transparency is excellent, image clarity is high, glare of an image is suppressed, whitishness (white blur) of the film is reduced, contrast deterioration is suppressed, and visibility of the display is improved as compared with prior-art antiglare films. This antiglare hard coat film is formed by providing an antiglare hard coat layer containing organic particulates and a resin on a transparent film. When an average value of height in an evaluation region on the surface of the antiglare hard coat film is set to zero (0), a maximum sectional height represented by a difference between a height maximum value in the evaluation region and a height minimum value in the evaluation region is 0.6 ?m or less.
    Type: Application
    Filed: March 28, 2010
    Publication date: June 7, 2012
    Applicant: NIPPON PAPER CHEMICALS CO., LTD.
    Inventors: Takeshi Hotta, Takeo Suzuki, Toshihide Fukuyama, Yusuke Sugiyama
  • Publication number: 20110274941
    Abstract: It is an object of the present invention to provide an active energy ray curable resin composition exhibiting good adhesion to a polyolefin-based resin base material. More specifically, there is provided an active energy ray curable resin composition comprising: a block copolymer (C) that includes a polymer block (A) composed mainly of an olefin-based monomer unit and a polymer block (B) composed of a vinyl-based monomer unit having a carboxyl group, a carboxylic anhydride group, or a sulfonic acid group and/or a second vinyl-based monomer unit copolymerizable with the aforementioned vinyl-based monomer unit, the block copolymer (C) having a weight-average molecular weight from 5,000 to 100,000; and an active energy ray curable compound (D).
    Type: Application
    Filed: January 21, 2010
    Publication date: November 10, 2011
    Applicant: NIPPON PAPER CHEMICALS CO., LTD.
    Inventors: Minoru Yada, Yuuki Kokufu, Yuu Takata, Hideo Hosaka, Kenichi Fujino
  • Publication number: 20110112229
    Abstract: It is an object of the present invention to provide: a dispersion resin composition for use in a paint, an ink, an adhesive, or a primer that each contains an alcohol or an ether, and which exhibits excellent water dispersibility and can maintain excellent dispersion stability, even when the dispersion resin composition is added to a material containing an organic solvent such as an alcohol or an ether, or even when an organic solvent is added to the dispersion resin composition; and a composition of a paint, an ink, an adhesive or a primer that each contains the dispersion resin composition.
    Type: Application
    Filed: August 14, 2009
    Publication date: May 12, 2011
    Applicant: NIPPON PAPER CHEMICALS CO., LTD.
    Inventors: Naoko Nagaoka, Kenshou Okayama, Masanori Tanaka, Naosuke Komoto
  • Publication number: 20100029836
    Abstract: It is an object of the present invention to provide a polyolefin resin dispersion composition in which the dispersed resin is stable to water or a hydrophilic substance, and which has an adhesive property to nonpolar substrates, in particular poorly adhesive polyolefin-based substrates whose surface has not been treated, is excellent in a coating property, exhibits an excellent adhesive property through drying and press bonding with heat at a temperature in a wide range regardless of whether the temperature is low or high, is excellent in water resistance and gasohol resistance and is less tacky. That is, the present invention provides the dispersed resin composition containing (a) a polyolefin resin, (b) a (meth)acrylic acid homopolymer or copolymer having a side chain comprising an esterified alkyl group, (c) a basic substance and (d) water or a hydrophilic substance, and a process for producing the same.
    Type: Application
    Filed: December 13, 2007
    Publication date: February 4, 2010
    Applicant: NIPPON PAPER CHEMICALS CO., LTD.
    Inventors: Takayuki Hirose, Naosuke Komoto, Kensho Okayama, Koji Masumoto, Naoko Nagaoka
  • Publication number: 20100004383
    Abstract: It is an object of the present invention to provide a modified polyolefin resin adhesive agent which is excellent in adhesiveness to a nonpolar substrate, particularly a poorly adhesive polyolefin substrate to which no surface treatment has been given and to a polar substrate, develops the excellent adhesiveness by drying or thermal compression bonding at relatively low temperature, and exhibits a low tack. That is, the present invention provides the modified polyolefin resin obtained by modifying a polyolefin resin with (A) a polarity imparting agent which is at least one selected from chlorine, unsaturated carboxylic acid, derivatives and anhydrides of unsaturated carboxylic acid and radical polymerizable monomers; and (B) an ethylene-?-olefin copolymer having an unsaturated bond at one end, and use of said modified polyolefin resin as an aqueous resin composition or an organic solvent resin composition.
    Type: Application
    Filed: July 18, 2007
    Publication date: January 7, 2010
    Applicants: NIPPON PAPER CHEMICALS CO., LTD., MITSUI CHEMICALS, INC.
    Inventors: Yasutaka Watanabe, Kenichi Fujino, Hidetoshi Yoshioka, Naoshi Nagai, Sadahiko Matsuura
  • Patent number: 7635520
    Abstract: A novel binder resin which attains good adhesion to various substrates such as polyolefin resins, vinyl chloride resins, polycarbonate resins, polyethylene terephthalate resins, acrylonitrile/butadiene/styrene resins, and nylon resins even by low-temperature baking and has excellent solubility in solvent. Namely, a chlorinated propylene random copolymer produced by subjecting a propylene random copolymer which is obtained by copolymerizing propylene with other alpha-olefins by using a metallocene catalyst as the polymerization catalyst and which has a melting point (Tm) of less than 115° C. as determined with a differential scanning calorimeter (DSC) to thermally kneaded preferably at a temperature ranging from the melting point of the copolymer to 350° C. and chlorination successively.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: December 22, 2009
    Assignee: Nippon Paper Chemicals Co., Ltd.
    Inventors: Eiji Nishijima, Koji Masumoto, Takayuki Hirose, Naosuke Komoto, Hironori Muramoto, Kensho Okayama
  • Publication number: 20090280098
    Abstract: It is an object of the present invention to provide a composition for a food or beverage containing a butyric acid bacterium which produces butyric acid and is excellent in intestinal regulation and cellooligosaccharide which serves as a substrate for the butyric acid bacterium and facilitates the production of butyric acid, enhancing an amount of butyric acid produced in intestine and being excellent in functions to improve an enteric environment and protect against an infectious disease.
    Type: Application
    Filed: March 30, 2007
    Publication date: November 12, 2009
    Applicants: NIPPON PAPER CHEMICALS, CO., LTD., MIYARISAN PHARMACEUTICAL CO., LTD.
    Inventors: Masahiko Tabata, Motomichi Takahashi
  • Publication number: 20090137721
    Abstract: Provided is a process for producing a modified propylene polymer which includes using a radical initiator and an organic acid to modify a propylene homopolymer satisfying the following (a) to (h): (a) mmmm is 40 to 50 mol %; (b) [rrrr/(1?mmmm)]?0.05; (c) rmrm is 2.5 mol % or more; (d) mm×rr/(mr)2?2.0; (e) Mw/Mn is 2.5 or lower; (f) Mw is 50,000 to 200,000; (g) [?] is 1.5 dL/g; and (h) Tm is 65 to 85° C. Also provided are: a modified propylene polymer obtained by the production process; and a composition, a surface treatment agent for a polyolefin resin, and a primer each containing the modified propylene polymer.
    Type: Application
    Filed: January 19, 2007
    Publication date: May 28, 2009
    Applicants: NIPPON PAPER CHEMICALS CO., LTD., IDEMITSU KOSAN CO., LTD.
    Inventor: Kenichi FUJINO
  • Publication number: 20070224435
    Abstract: A novel binder resin which attains good adhesion to various substrates such as polyolefin resins, vinyl chloride resins, polycarbonate resins, polyethylene terephthalate resins, acrylonitrile/butadiene/styrene resins, and nylon resins even by low-temperature baking and has excellent solubility in solvent. Namely, a chlorinated propylene random copolymer produced by subjecting a propylene random copolymer which is obtained by copolymerizing propylene with other alpha-olefins by using a metallocene catalyst as the polymerization catalyst and which has a melting point (Tm) of less than 115° C. as determined with a differential scanning calorimeter (DSC) to thermally kneaded preferably at a temperature ranging from the melting point of the copolymer to 350° C. and chlorination successively.
    Type: Application
    Filed: May 31, 2005
    Publication date: September 27, 2007
    Applicant: NIPPON PAPER CHEMICALS CO., LTD.
    Inventors: Eiji Nishijima, Koji Masumoto, Takayuki Hirose, Naosuke Komoto, Hironori Muramoto, Kensho Okayama