Patents Assigned to Nippon Paper Industries Co., LTD
  • Patent number: 11807525
    Abstract: An object of the present invention is to provide a new form of adsorbent suitable for a motor vehicle canister. An activated carbon fiber sheet satisfies one or two or more of conditions for indices, such as a specific surface area, a pore volume of pores having a given pore diameter, and a sheet density. An embodiment, for example, may have: a specific surface area ranging from 1400 to 2200 m2/g; a pore volume ranging from 0.20 to 1.20 cm3/g for pores having pore diameters of more than 0.7 nm and 2.0 nm or less; and a sheet density ranging from 0.030 to 0.200 g/cm3.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: November 7, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Daisuke Imai, Yoshihide Watanabe, Yuu Takata, Shunsuke Ozawa, Chie Yoshida, Kenichi Fujino
  • Patent number: 11760811
    Abstract: A carboxymethylated cellulose having a carboxymethyl substitution of no more than 0.50 and a cellulose I type crystallization of at least 50%. Ideally, the anionization is 0.00-1.00 meq/g. The Schopper-Riegler freeness is ideally at least 60.0° SR. Ideally the ratio of filtration residue is 0%-30% by mass. The viscosity (30 rpm, 25° C.) for an aqueous dispersion having a 1% solid content (w/v) is ideally no more than 10.0 mPa·s.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: September 19, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kazuhiko Inoue, Takeshi Nakatani, Yusuke Tada, Kasumi Nishigaya, Hiroyoshi Suzuki
  • Patent number: 11732055
    Abstract: Provided is a novel manufacturing method whereby a carboxymethylated cellulose nanofiber dispersion having high tarnasparency can be obtained economically. In carboxymethylation of cellulose in the present invention, mercerization is performed in water as the main solvent, after which carboxymethylation is performed in a solvent mixture of water and an organic solvent, By defibrating the resultant carboxymethylated cellulose, a carboxymethylated cellulose nanofiber dispersion having high transparency can be obtained economically.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: August 22, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kazuhiko Inoue, Takeshi Nakatani, Yusuke Tada
  • Publication number: 20230257492
    Abstract: An object of the present invention is to provide a modified polyolefin resin composition having a high polyethylene content and exhibiting a good balance between a low-temperature stability and an adhesion to a polyethylene substrate and a metal. The present invention provides a modified polyolefin resin that is a graft-modified product in which a component (A) that is a polyolefin resin having an ethylene structural unit content of 50% or more by mole is modified with a component (B) that is an ?,?-unsaturated carboxylic acid or an anhydride thereof and a component (C) that is a (meth)acrylate ester represented by the following general formula (I), and an extrapolated melting end temperature (Tem) of the modified polyolefin resin measured in accordance with JIS K7121-1987 using a differential scanning calorimeter at a temperature raising rate of 10° C./minute is 58° C. or lower.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 17, 2023
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Tomohiro OKEDA, Takato TAKENAKA, Isamu ONO, Minoru YADA, Hiroko IWAKIRI
  • Patent number: 11723382
    Abstract: The present invention aims to provide feedstuffs for ruminants with high nutritional value and high digestion efficiency. According to the present invention, feed pellets for ruminants containing a kraft pulp derived from a lignocellulosic material are provided, wherein the kraft pulp has a Canadian standard freeness of less than 400 ml.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 15, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Taisuke Minohara, Kana Sato, Hiroshi Shinkura, Kazuhiro Kurosu, Takeshi Iimori
  • Patent number: 11718721
    Abstract: A hard coat film having excellent adhesion (particularly adhesion over time) to a hard coat layer when a cycloolefin polymer film is used as a base material. The hard coat film comprises a hard coat layer containing an ionizing radiation curable resin laminated on at least one surface of a cycloolefin polymer base film via a primer layer. The primer layer has an arithmetic average surface roughness (Ra) in the range of 0.5 nm to 15.0 nm, and a surface of the primer layer has a static friction coefficient in the range of 0.6 to 2.0.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: August 8, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Takeo Suzuki, Narihiro Iio, Takashi Ino, Yusuke Sugiyama, Yasuaki Yoshida, Takuya Takahashi
  • Patent number: 11712050
    Abstract: The present invention aims to provide feedstuffs for ruminants with high nutritional value capable of promoting rumination. According to the present invention, feedstuffs for ruminants containing a kraft pulp derived from a lignocellulosic material are provided, wherein the kraft pulp has a Canadian standard freeness of 400 ml or more.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 1, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Taisuke Minohara, Kana Sato, Hiroshi Shinkura, Kazuhiro Kurosu, Takeshi Iimori
  • Publication number: 20230192992
    Abstract: A rubber additive composition may be capable of producing a rubber composition having well-balanced strength. Such rubber additive compositions may include: (A) anion-modified cellulose and (B) a hydrophobizing agent, wherein the hydrophobizing agent (B) includes at least one selected from the group consisting of (B1) a polyether amine having a primary amino group at an end of a polyether skeleton and (B2) an amine compound having a hydrocarbon group with a carbon number of 3 to 50 or a quaternary ammonium salt having a hydrocarbon group with a carbon number of 3 to 50.
    Type: Application
    Filed: October 19, 2020
    Publication date: June 22, 2023
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kotaro ITO, Masahiro MORITA, Mei TAKAKI, Hayato KATO, Isamu ONO
  • Publication number: 20230192919
    Abstract: An alcohol-based composition may contain an acryl-modified polyolefin resin and exhibit a good adhesion even at a high solid content, suppress an increase in viscosity, and have good stability such as dispersibility and sustainable stability. A dispersion composition may contain at least a modified polyolefin resin dispersed in a dispersing medium containing an alcohol solvent and an aliphatic hydrocarbon solvent. The modified polyolefin resin may be modified with a (meth)acrylic acid component containing at least a (meth)acrylic ester of formula (I) and a (meth)acrylic ester of formula (II). The total content of the structure derived from the (meth)acrylic acid component in the dispersion composition is 3% to 94% by weight, relative to 100% by weight as a total amount of the modified polyolefin resin and (meth)acrylic acid component polymer, and a solid fraction in the dispersion composition is 30% to 80% by weight.
    Type: Application
    Filed: May 20, 2021
    Publication date: June 22, 2023
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru KONO, Koji KIMURA, Yasutaka WATANABE, Naosuke KOMOTO
  • Patent number: 11649380
    Abstract: A water-dispersible sheet is described that maintains water dispersibility while providing suppressed time degradation of the tacky adhesiveness of a tacky adhesive layer. The water-dispersible sheet has a paper substrate with a multilayer structure. One layer of the multilayer structure is an inner layer that is not in contact with the tacky adhesive layer. Another layer is a surface layer that is in contact with the tacky adhesive layer. The layers independently include mixed pulps of a wood pulp and a refined pulp with an ?-cellulose content of 88 % by weight or more. The weight ratio of the layers and the beating degree of the mixed pulps are set in the specific ranges.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: May 16, 2023
    Assignees: NIPPON PAPER PAPYLIA CO., LTD., Nippon Paper Industries Co., Ltd.
    Inventors: Masaki Kishimoto, Yoshiaki Ishino, Yasuaki Matsumori, Eiji Kusano, Kento Aoshima, Kazuyo Wadagami, Kumiko Katsumata
  • Patent number: 11648189
    Abstract: An object is to provide a foamable aerosol composition that can be continuously ejected from the container to form dense and uniform foam, and that the formed foam has certain elasticity as well as can be easily spread on an object, and the foamable aerosol composition comprises a stock solution including cellulose nanofibers and a propellant is provided.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: May 16, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Takafumi Kawasaki, Takeshi Nakatani, Noriko Motoyama
  • Patent number: 11643239
    Abstract: A paper container having a top portion (4) that is tightly closed by bonding together opposing surfaces of first top sealing panels (20) and opposing surfaces of second top sealing panels (22), and each of side panels (16) is folded along a first side panel folding line (26) and a second side panel folding line (27) to form a flap (35) having a substantially triangular shape. The top portion (4) is formed by folding down the flaps (35) onto right and left side surfaces of a tubular body (3) through mountain-folding along front-side top panel vertical folding lines (17), front-side top panel vertical folding lines (18), and front-side top sealing vertical folding lines (23), and through valley-folding along second top portion horizontal folding lines (15) and back-side top sealing vertical folding lines (24).
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: May 9, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Yoshitaka Yoneda, Kouya Nakamura
  • Patent number: 11613850
    Abstract: An object is to provide a base paper for paper tubes that has lower environmental impact and is used for manufacturing of paper tubes offering excellent water resistance. As a solution, a base paper for paper tubes is provided, wherein: it has two or more but no more than five paper layers; the paper layers are bonded by a water-soluble or water-dispersible adhesive; and its elution rate is 2.0 percent or lower.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 28, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Junji Yamamoto, Youko Jyoumei, Kenji Hirai
  • Patent number: 11603415
    Abstract: Dry solids of anionically modified cellulose nanofibers with good redispersion are provided by incorporating 5 to 300% by mass of a water-soluble polymer relative to the anionically modified cellulose nanofibers during the preparation of the dry solids of anionically modified cellulose nanofibers.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 14, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Takeshi Nakatani, Koji Kimura, Shinji Sato
  • Publication number: 20230071958
    Abstract: A power storage material is made by using a fiber material of cellulose molecules obtained from wood, plant fibers (pulp), and the like, and capable of storing electric power of direct current and alternating current, and an ultra power storage body has the power storage material. A power storage material includes a fiber mainly including a fiber derived from at least any one of wood, plant fibers (pulp), animals, algae, microorganisms, and microbial products, and having a large number of recesses and protrusions on a surface. The fiber is preferably crystallized/amorphous fibers, is preferably an amorphous fiber having an atomic vacancy, and preferably has a specific surface area of 10 m2/g or more. Preferably, the large number of recesses and protrusions have a diameter of 1 nm to 500 nm.
    Type: Application
    Filed: February 12, 2021
    Publication date: March 9, 2023
    Applicants: TOHOKU UNIVERSITY, NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Mikio FUKUHARA, Fumihiko HASEGAWA, Tomoyuki KURODA, Osamu ITO, Toshiyuki HASHIDA, Takeshi NAKATANI, Masahiro MORITA
  • Publication number: 20230066934
    Abstract: A problem to be solved is to provide a packaging method suitable for transporting a cellulosic polymer, and another problem to be solved is to provide a packaging method suitable for transportation while suppressing the viscosity reduction of the cellulosic polymer. The cellulosic polymer is packaged so as to meet the following conditions (1), (2), and (3): (1) the packaging bag having a gas barrier property is filled with a cellulosic polymer; (2) an oxygen concentration in the packaging bag is adjusted to 0.8% or less and the packaging bag was sealed; and (3) when the packaging bag filled with the cellulosic polymer is placed such that the longest long side L is horizontal, the depth D of the packaging bag from the horizontal plane and the long side L satisfy the relational expression of 6.1?L/D?10.
    Type: Application
    Filed: October 18, 2022
    Publication date: March 2, 2023
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kazuhiko INOUE, Satoshi MIYAMORI, Yuuma KANEKO, Akihiro OGUMA
  • Patent number: 11591412
    Abstract: Carboxymethylated cellulose nanofibers in which the cellulose type I crystallinity is 60% or higher, the aspect ratio is 350 or lower, and the transmittance of light having a wavelength of 660 nm when the carboxymethylated cellulose nanofibers are made into an aqueous dispersion having a solids fraction of 1% (w/v) is 60% or higher.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: February 28, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kazuhiko Inoue, Takeshi Nakatani, Yusuke Tada, Takeshi Fujii
  • Patent number: 11591721
    Abstract: An object is to provide an acid-type carboxymethylated cellulose nanofiber in which the viscosity is not excessively high at the time of preparing a dispersion liquid and the introduced carboxymethyl group is desalted to convert the acid type, and the acid-type carboxymethylated cellulose nanofiber has 0.01 to 0.50 of the degree of substitution with carboxymethyl group per glucose unit, wherein the B-type viscosity in an aqueous dispersion with a concentration of 0.95 to 1.05% by mass is 1000 mPa·s or more under the condition of 60 rpm and 20° C., and 7000 mPa·s or more under the condition of 6 rpm and 20° C.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: February 28, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Satoshi Takaichi, Takeshi Fujii, Kenichiro Sasaki, Makoto Matsumoto, Shinichi Onogi
  • Publication number: 20230051687
    Abstract: Component A: a carboxymethyl cellulose having a degree of carboxymethyl substitution per anhydroglucose unit of 0.45 or more or a salt thereof and Component B: a saturated carboxylic acid having 6 or less carbon atoms or a salt thereof are contained.
    Type: Application
    Filed: May 20, 2021
    Publication date: February 16, 2023
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Takayuki SAKAJIRI, Daisuke NISHIDE, Kazuhiko INOUE, Kodai YAMAMOTO, Mikiya ITO
  • Patent number: 11578142
    Abstract: The present invention intends to provide an acid type carboxylated cellulose nanofiber having a high viscosity in a low shear region, or to provide an acid type carboxylated cellulose nanofiber having a very short fiber length, and the acid type carboxylated cellulose nanofiber has a carboxy group at least in part of a constituent unit constituting a cellulose molecular chain, wherein a viscosity of water dispersion with a content from 0.95 to 1.05% by mass is 400 Pa·s or higher at a shear velocity from 0.003 to 0.01 s?1 at 30° C., or an average fiber length is from 50 to 500 nm and a ratio of fibers having a fiber length of 300 nm or shorter is 50% or higher.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: February 14, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Satoshi Takaichi, Takeshi Nakatani, Masahiro Morita, Shinichi Onogi, Takeshi Fujii, Kenichiro Sasaki, Makoto Matsumoto, Takeshi Nakayama