Patents Assigned to Nippon Paper Industries Co., LTD
  • Thermosensitive recording medium
    Patent number: 10000083
    Abstract: A thermosensitive recording medium is provided that is excellent in heat discoloration resistance in the blank portions and in bar code readability. It also has excellent water resistance and printing (recording) run-ability. The thermosensitive recording medium includes a support, a thermosensitive recording layer installed on the support, and a protective layer on the thermosensitive recording layer. The thermosensitive recording layer contains two kinds of electron accepting color developing agents, a sulfonic acid compound and a diphenyl sulfone compound. Both the thermosensitive recording layer and the protective layer contain crosslinking agents, and at least one, and preferably both, of the thermosensitive recording layer and the protective layer contain an ammonium zirconium carbonate as the crosslinking agent.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: June 19, 2018
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Akihito Ogino, Kenji Hirai
  • Continuous electrolysis method with electrolytic bath for polysulfide production and electrolysis device for implementing the same
    Patent number: 9951432
    Abstract: An electrolysis method of preventing the voltage of an electrolytic bath from rising over time without halting electrolysis and an electrolysis device for executing the method are provided such that: in operation of a two-compartment electrolytic bath, which has a membrane partitioning an anode compartment from a cathode compartment and in which a sulfide ion-containing white liquor for use in a pulp production process is fed into the anode compartment while direct current is supplied to the electrolytic bath to produce polysulfide in the anode compartment through electrolysis, and a sulfide ion-containing white liquor for use in a pulp production process that contains at least one of a scale cleaning agent and a scale inhibitor is fed to the anode compartment.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: April 24, 2018
    Assignees: NIPPON PAPER INDUSTRIES CO., LTD., PERMELEC ELECTRODE LTD.
    Inventors: Kenichiro Suyama, Kazuhiro Kurosu, Masaaki Kato, Hideo Otsu
  • Clupak paper
    Patent number: 9945077
    Abstract: Clupak paper is manufactured using a gap-former paper-making machine equipped with a Clupak system, in such a way that its longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113 become 2.5 J/g or more and 1.0 J/g or more, respectively. The paper has excellent strength characteristics in both the longitudinal and lateral directions, especially in the longitudinal direction so that when the Clupak paper can be processed into a sack, the sack rarely breaks.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: April 17, 2018
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Keiko Hashiguchi, Hirofumi Kondo, Hiroaki Noguchi, Yuji Abe, Satoshi Ishikawa, Yukio Shini
  • METHOD FOR PRODUCING MASTER BATCH, MASTER BATCH OBTAINED BY SAID PRODUCTION METHOD, RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE
    Publication number: 20180016402
    Abstract: The present invention provides, inter alia, a method for producing a masterbatch in which the dispersibility of microfibrillated plant fibers is further increased to obtain excellent processability and improved rubber properties such as fuel economy, tensile strength, and elongation at break. The present invention relates to a method for producing a masterbatch, the method including step (I) of mixing a rubber latex with microfibrillated plant fibers oxidized with an N-oxyl compound to obtain a mixture, and coagulating the mixture by adjusting its pH to 2 to 6.
    Type: Application
    Filed: February 9, 2016
    Publication date: January 18, 2018
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Sumiko MIYAZAKI, Takahiro MABUCHI, Takafumi KAWASAKI, Takeshi NAKAYAMA, Takeshi FUJII
  • HARD COAT FILM
    Publication number: 20180016405
    Abstract: The present invention provides a hard coat film that is provided with a hard coat layer via an easy-bonding layer on at least one surface of a cycloolefin film, has excellent temporal adhesiveness under normal condition and under moisture and heat resistant condition, and has no crack occurrence under the heat resistant condition. A hard coat film 10 of the present invention is provided with a hard coat layer 3 via an easy-bonding layer 2 on at least one surface of a cycloolefin film 1. The easy-bonding layer 2 includes a mixture of a polyolefin based resin and a styrene-acryl based resin, and a blending ratio thereof is in the range of, for example, from 95/5 to 40/60. Further, the hard coat layer 3 includes an ionizing radiation curable resin having a weight-average molecular weight of 700 or larger and 3600 or smaller.
    Type: Application
    Filed: January 23, 2016
    Publication date: January 18, 2018
    Applicant: NIPPON PAPER INDUSTRIES CO. ,LTD.
    Inventors: Morio MATSUZAKI, Yasuaki YOSHIDA, Hirosuke TSUNODA, Narihiro IIO
  • Molded body and method for producing cellulose-nanofiber-containing composition
    Patent number: 9822241
    Abstract: Provided herein is a cellulose nanofiber that can be easily combined with a compound having a reactive double-bond group and that can provide a molded article which contains only a small amount of an uncured material that acts as a plasticizer in a molded product, using a simple producing method that does not require any process involving solvent displacement or solvent removal. A high-strength resin composition or molded body prepared by using the cellulose nanofiber is also provided. In refining cellulose in the presence of a compound having a reactive double bond and a hydroxyl value of 200 KOHmg/g or more, the cellulose has a moisture content of 4 to 25 parts by mass with respect to 100 parts by mass of the amount of the cellulose converted on the assumption that the percentage moisture of the cellulose is 0%.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: November 21, 2017
    Assignees: DIC Corporation, NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Takahito Ikuma, Tetsuya Harada, Mitsuyuki Kanzaki
  • HARD COAT FILM AND OPTICAL FILM FOR DISPLAY DEVICE
    Publication number: 20170298238
    Abstract: The present invention provides a hard coat film that has an excellent adhesion to the substrate of the hard coat layer and excellent hardness, that has an excellent coating surface without optical unevenness, and that has a high adhesion to acrylic adhesives used to join the hard coat layer and a liquid crystal display member, etc., while having excellent peeling properties from natural rubber-based adhesives. The present invention is a hard coat film comprising a film substrate, and a hard coat layer formed on the film substrate and containing one or more electron beam-curable resins and one or more leveling agents. The above one or more electron beam-curable resins include, for example, a polyfunctional (meth)acrylate resin having 3 or more (meth)acryloyl groups, and the above one or more leveling agents include polyester-modified polydimethylsiloxane.
    Type: Application
    Filed: September 27, 2015
    Publication date: October 19, 2017
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Yasuomi UCHIDA, Takeo SUZUKI, Yusuke SUGIYAMA, Takayoshi NOMURA, Takeshi HOTTA
  • BLOCK COPOLYMER AND RESIN COMPOSITION
    Publication number: 20170275457
    Abstract: The present invention aims to provide a resin having an excellent solubility to alcohols, an excellent adherability to nonpolar base materials such as polyolefin, and not containing chlorine; and to provide a resin composition containing a urethane resin, not having the elimination problem of hydrochloric acid caused by external factors, having a good compatibility with a variety of components containing urethane resins, and having a good adherability to a variety of base materials, so that the resin composition can suitably be used as an ink, an adhesive, and paint.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 28, 2017
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Minoru YADA, Yuu TAKATA, Junichi HAYAKAWA, Shunji SEKIGUCHI, Kazutaka NAKAGAWA
  • AGENT FOR PREVENTING OR AMELIORATING DIABETES
    Publication number: 20170182110
    Abstract: An object of the present invention is to find a component that is safe and is capable of effectively exerting various effects such as prevention or amelioration of diabetes, prevention or amelioration of metabolic syndrome, amelioration of insulin resistance, inhibition of an increase in a postprandial blood sugar level, and inhibition of ?-glucosidase activity. The present invention provides agents for preventing or ameliorating diabetes or the like, the agents including a component of a hybrid plant of Camellia sinensis and Camellia taliensis as an active ingredient. The hybrid plant is preferably Sun Rouge, and each of the agents preferably includes a tea leaf extract of the hybrid plant.
    Type: Application
    Filed: March 20, 2015
    Publication date: June 29, 2017
    Applicants: NIPPON PAPER INDUSTRIES CO., LTD., KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATION
    Inventors: Masafumi WASAI, Akiyoshi KAWAOKA, Hirofumi TACHIBANA
  • Antiglare hard coat film
    Patent number: 9684098
    Abstract: An antiglare hard coat film formed by providing an antiglare hard coat layer containing fine particles and a resin on a transparent film. When an average value of height in an evaluation region on a surface of the antiglare hard coat film is set at zero (0), a maximum cross 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 from 1.0 to 3.0 ?m, and an average inclination angle of unevenness on the surface of the antiglare hard coat film is 1 degree or less. The total value of the transmissive clarity measured through four optical combs using a transmissive clarity measuring device according to JIS K 7105-1981 is 280% or more, and the value of the transmissive clarity measured through each optical comb is 70% or more, respectively.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: June 20, 2017
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Kimiyoshi Sakajiri, Takeshi Hotta, Takeo Suzuki, Yusuke Sugiyama, Syou Kariatumari
  • MULTILAYER COMPOSITE BODY OF METAL AND POLYPROPYLENE-BASED RESIN COMPOSITION AND METHOD FOR PRODUCING SAME
    Publication number: 20170129217
    Abstract: A multilayer composite body in which a shaped metal article, a thermosetting resin layer, a modified polyolefin resin layer, and a polypropylene-based resin composition, or a PP-based GFRTP are laminated in the order of description. A multilayer composite body of a metal and a resin is obtained which excels in a fixing strength (shear breaking stress) between the shaped metal article and the molded article of the polypropylene-based resin composition. The thermosetting resin layer is composed mainly of a urethane resin or an epoxy resin. The polypropylene-based resin composition is molded by an injection molding. The modified polyolefin resin forming the modified polyolefin resin layer includes one or two or more of non-chlorinated modified polyolefin resins having a weighted average of melting points of 70° C. to 110° C., as determined with a differential scanning calorimeter (DSC).
    Type: Application
    Filed: March 27, 2015
    Publication date: May 11, 2017
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Naoki ANDOH, Masao TAKAHASHI, Yoshihiro YAMAGUCHI, Yasutaka WATANABE, Kenichi FUJINO, Masayoshi MIKI
  • COMPLEXES OF CALCIUM CARBONATE MICROPARTICLES AND FIBERS AS WELL AS PROCESSES FOR PREPARING THEM
    Publication number: 20170107668
    Abstract: The present invention aims to provide techniques for preparing complexes of calcium carbonate particles having an average primary particle size of less than 1 ?m and a fiber. Complexes of calcium carbonate microparticles having an average primary particle size of less than 1 ?m and a fiber can be synthesized efficiently by synthesizing calcium carbonate in a solution bearing the fiber while injecting a liquid into a reaction vessel.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 20, 2017
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Moe Fukuoka, Toru Nakatani, Shisei Goto
  • Thermosensitive recording medium
    Patent number: 9579916
    Abstract: The purpose of the present invention is to provide a thermosensitive recording medium with an increased gloss in the blank and printed portions, excellent color developing sensitivity and excellent printing run-ability, particularly excellent printing run-ability at high-speed printing. Provided is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored basic leuco dye and an electron accepting color developing agent, an intermediate layer and a gloss layer as an outermost layer in this order on a substrate, wherein the intermediate layer is formed by containing a carboxyl group-containing resin and the gloss layer is formed by containing a long chain alkyl group-containing resin and an emulsion type silicone copolymer resin.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: February 28, 2017
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Yasuaki Matsumori, Akihito Ogino, Yoshimi Midorikawa, Yoshihide Watanabe
  • Method for producing carbon material using catalyst, and carbon material
    Patent number: 9523163
    Abstract: Provided is a method for producing a carbon material, the method utilizing a cellulosic material and enables the carbon material, which retains the shape of the cellulosic material, to be produced in high yield. The method for producing a carbon material is characterized by comprising the steps of: allowing a cellulosic material and/or a regenerated cellulosic material to adsorb a sulfonic acid; and heating the cellulosic material and/or the regenerated cellulosic material which has adsorbed the sulfonic acid at a temperature of 600-2800° C. in an inert gas atmosphere.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: December 20, 2016
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Mutsumasa Kyotani, Kazuo Akagi, Shinichi Kimura
  • Chlorinated polyolefin resin
    Patent number: 9458267
    Abstract: It is an object of the present invention to provide a chlorinated polyolefin resin having favorable adhesion to a polyolefin resin and high solubility in a composition containing an alcohol-based solvent. The present invention provides a chlorinated polyolefin resin that exhibits, in infrared spectroscopy spectrum measurement, a peak area ratio A/B×100 of 10% or higher, a peak area ratio C/B×100 of 30 to 80%, and a peak area ratio A/C×100 of 30% or higher (wherein “A” is the area of a peak resulting from hydroxyl groups, “B” is the area of a peak resulting from methylene groups, and “C” is the area of a peak resulting from carbonyl groups). The present invention also provides an ink composition for gravure printing or flexography that contains the chlorinated polyolefin resin, a printed material obtained using the above composition, and a printing method using the above composition.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: October 4, 2016
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Isamu Ono, Yuu Kitamura, Takao Yoshimoto, Masanori Tanaka, Shunji Sekiguchi
  • Method for producing cellulose nanofibers
    Patent number: 9365973
    Abstract: Provided is a method which is capable of producing a cellulose nanofiber dispersion liquid that has a low viscosity and excellent fluidity even at a high concentration, while exhibiting excellent transparency. In a method for producing cellulose nanofibers, wherein a cellulosic starting material is oxidized in water using an oxidant in the presence of an N-oxyl compound and a compound that is selected from the group consisting of a bromide, an iodide and a mixture thereof and the thus obtained oxidized cellulose is defibrated and dispersed, pulp which is obtained by carrying out kraft cooking after a hydrolysis process is used as the cellulosic starting material.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: June 14, 2016
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Shiho Tsuji, Masahiko Fukazawa, Shoichi Miyawaki, Takeshi Iimori
  • DISPERSANT
    Publication number: 20160151754
    Abstract: The present invention provides a hydrolysate of a lignocellulosic material, and specifically a method of using a hydrolysis treatment liquid obtained by a hydrolysis treatment of a lignocellulosic material before kraft cooking in order to obtain dissolving pulp for uses other than use of a fuel. Specifically, the present invention provides a dispersant containing the hydrolysate obtained by hydrolysis treatment of the lignocellulosic material. The dispersant of the present invention has excellent dispersibility for a substance such as an inorganic substance and an organic substance without limitation of powder, particulate, granular, fiber, and flat plane shapes.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 2, 2016
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Shigeki YOKOYAMA, Tadfumi HASIMOTO, Takahito YAMAGUCHI, Masanobu KAWAMURA, Hideo HOSAKA, Takeshi IMORI
  • Method for cultivation of genetically-modified plant
    Patent number: 9353379
    Abstract: The present invention provides a method for cultivation of a genetically-modified plant that can highly produce a desired protein. More specifically, the present invention provides a method for cultivation of a genetically-modified plant comprising: cultivating the genetically-modified plant in a medium, wherein the genetically-modified plant is transformed by introducing an expression vector comprising a promoter regulating expression of RNA and a seed storage protein isolated from a plant that highly expresses RNA and the seed storage protein under a high nitrogen condition; and a polynucleotide encoding an objective protein, and wherein the medium is adjusted so that nitrate nitrogen is 70 mg/L to 750 mg/L and/or ammonium nitrogen is 70 mg/L to 750 mg/L for a definite period in a period from 30 days before an expected flowering date to a date on or before flowering of the genetically-modified plant.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: May 31, 2016
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Saori Kasahara, Masafumi Wasai, Koichi Sugita, Teruhisa Shimada
  • Molding material and manufacturing method therefor
    Patent number: 9327426
    Abstract: The present invention relates to anionically modified microfibrillated plant fibers used for obtaining a thermosetting resin molding material having excellent mechanical strength, a method for manufacturing the same, a molding material containing the anionically modified microfibrillated plant fibers and a thermosetting resin, and a method for manufacturing the same. Specifically, the present invention provides a molding material containing anionically modified microfibrillated plant fibers that are anionically modified in the presence of a base by a carboxylic acid represented by formula (I): X—(CH2)n—COOH (I), wherein X represents halogen and n is 1 or 2, and/or by a salt thereof, and a thermosetting resin, and the molding material contains the anionically modified microfibrillated plant fibers in an amount of 10 to 900 parts by weight per 100 parts by weight of the thermosetting resin.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 3, 2016
    Assignees: NIPPON PAPER INDUSTRIES CO., LTD., Oji Holdings Corporation, Kyoto University
    Inventors: Hiroyuki Yano, Tadafumi Hashimoto, Akihiro Sato, Antonio Norio Nakagaito
  • CHLORINATED POLYOLEFIN RESIN
    Publication number: 20160046741
    Abstract: It is an object of the present invention to provide a chlorinated polyolefin resin having favorable adhesion to a polyolefin resin and high solubility in a composition containing an alcohol-based solvent. The present invention provides a chlorinated polyolefin resin that exhibits, in infrared spectroscopy spectrum measurement, a peak area ratio A/B×100 of 10% or higher, a peak area ratio C/B×100 of 30 to 80%, and a peak area ratio A/C×100 of 30% or higher (wherein “A” is the area of a peak resulting from hydroxyl groups, “B” is the area of a peak resulting from methylene groups, and “C” is the area of a peak resulting from carbonyl groups). The present invention also provides an ink composition for gravure printing or flexography that contains the chlorinated polyolefin resin, a printed material obtained using the above composition, and a printing method using the above composition.
    Type: Application
    Filed: March 19, 2014
    Publication date: February 18, 2016
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Isamu ONO, Yuu KITAMURA, Takao YOSHIMOTO, Masanori TANAKA, Shunji SEKIGUCHI