Patents Assigned to Nippon Paper Industries Co., LTD
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Patent number: 11970603Abstract: A chlorinated polyolefin resin may have excellent adhesion and can be produced without using a chlorinated solvent and without producing by-products through a series of production processes. Such a chlorinated polyolefin resin may be a chlorinated polyolefin resin having an amount of chlorine of 1% by weight to 45% by weight obtained by chlorinating a raw material composition in the absence of an organic solvent, wherein the raw material composition includes at least a polyolefin A or an acid-modified product thereof which has fluidity at 40° C. or less and a polyolefin B or an acid-modified product thereof which has a melting point of more than 40° C. and 150° C. or less.Type: GrantFiled: July 22, 2019Date of Patent: April 30, 2024Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Minoru Yada, Naosuke Komoto
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Patent number: 11970593Abstract: The present invention provides a hard coat film having excellent adhesion to a hard coat layer when a cycloolefin polymer film is used as a base material. The hard coat film of the present invention comprises a hard coat layer containing an ionizing radiation curable resin laminated on at least one surface of a cycloolefin polymer base film through a primer layer. This primer layer contains a modified polyolefin resin in which a polyolefin resin is graft-modified with an ?,?-unsaturated carboxylic acid or a derivative thereof, and a (meth)acrylic acid ester. In this modified polyolefin resin, the graft weight of the ?,?-unsaturated carboxylic acid or derivative thereof is 0.4 to 7 wt. % when the amount of the modified polyolefin resin is taken as 100 wt. %.Type: GrantFiled: July 23, 2019Date of Patent: April 30, 2024Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Takeo Suzuki, Narihiro Ilo, Takashi Ino, Yusuke Sugiyama, Yasuaki Yoshida, Takuya Takahashi, Syunji Sekiguchi
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Patent number: 11958926Abstract: A modified polyolefin resin having an intended adhesion strength to various substrates even when graft modification may be carried out by using an ?,?-unsaturated carboxylic acid derivative having a cyclic structure. The modified polyolefin resin may be a modified product of a polyolefin resin and satisfies conditions (A) to (C): condition (A)—a modifying component includes an ?,?-unsaturated carboxylic acid derivative having a cyclic structure; condition (B)—a ring-opening degree expressed by formula (1) is 40 or more; and condition (C)—the polyolefin resin includes an ethylene structural unit, ring-opening degree=modification degree K×ring-opening rate R??(1) wherein, in the formula (1), the modification degree K is a grafting weight (wt. %) of the ?,?-unsaturated carboxylic acid derivative, and the ring-opening rate R is a ring-opening rate (%) of the cyclic structure in the ?,?-unsaturated carboxylic acid derivative.Type: GrantFiled: November 26, 2019Date of Patent: April 16, 2024Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Isamu Ono, Kei Kondo, Koji Kimura, Takato Takenaka, Yuuko Nahara, Shunji Sekiguchi
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Patent number: 11945249Abstract: The present invention provides a thermosensitive recording medium having a high degree of water resistance and excellent surface qualities. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored basic leuco dye and an electron accepting developing agent on a substrate, but does not have a protective layer on the thermosensitive recording layer, and the thermosensitive recording layer further comprises (i) a carboxy-modified polyvinyl alcohol as a binder, (ii) an epichlorohydrin resin and a modified polyamine/amide resin (excluding those contained in the category of epichlorohydrin resin) as crosslinking agents, and (iii) an acrylic resin with a glass transition temperature (Tg) of lower than or equal to 50 degree C. and a minimum film forming temperature (MFT) of higher than or equal to 40 degree C.Type: GrantFiled: February 25, 2020Date of Patent: April 2, 2024Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Kentaro Kawasaki, Yoshimi Midorikawa, Kenji Hirai
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Patent number: 11939463Abstract: Provided is a resin composition having a large proportion of polyolefin components, allowing preparation of a solution having a high solid content, having a good solution property after long-term storage, having good pigment dispersibility, and including a modified product of component (A): polyolefin resin with component (B): (meth)acrylic acid and/or (meth)acrylic acid ester, in which the weight ratio of the component (A) to the component (B) ((A)/(B)) is 90/10 to 30/70, and the component (B) contains 20% by weight or more of component (B1): an alkoxy (poly)alkylene glycol mono(meth)acrylic acid ester.Type: GrantFiled: September 25, 2019Date of Patent: March 26, 2024Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Masaru Kono, Hitomi Abe, Minoru Yada, Naosuke Komoto
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Patent number: 11905662Abstract: An object is to provide a paper barrier material resistant to fractures due to water vapor expansion when heated. As a solution, a paper barrier material is provided, which is characterized in that it comprises a gas barrier layer, a seal layer, a paper base material, and a pigment coating layer, being stacked in this order, wherein the laminate consisting only of the paper base material and pigment coating layer has an air permeation resistance of 2,500 seconds or lower as measured based on JAPAN TAPPI No. 5-2: 2000.Type: GrantFiled: March 17, 2020Date of Patent: February 20, 2024Assignees: NIPPON PAPER INDUSTRIES CO., LTD., JUJO THERMAL OYInventors: Masaaki Fukunaga, Hiroshi Koyamoto, Yuri Oishi, Masatsugu Kato, Akio Miyajima, Masashi Okamoto
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Patent number: 11873443Abstract: A composition including: a lignin sulfonic acid-based compound and a water-soluble compound; a lignin derivative that is a reaction product of the lignin sulfonic acid-based compound with an aromatic water-soluble compound; or the lignin sulfonic acid-based compound, the water-soluble compound, and the lignin derivative. The composition is a granular product or a liquid product.Type: GrantFiled: August 8, 2019Date of Patent: January 16, 2024Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Akihiko Nakamura, Kanae Takahashi, Takuma Nakamura, Sumio Tamura, Tubasa Kanenaka
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Publication number: 20230390732Abstract: An object is to provide an adsorbing material using activated carbon fiber, suitable for motor vehicle canisters, and enabling reduction in pressure loss. Another object is to provide a formed adsorber using activated carbon fiber, with improved mechanical strength, and having excellent effects of an adsorbing material for canisters. The formed adsorber for canisters satisfies the following conditions (1) to (3). (1) The formed adsorber includes: an adsorbing material including activated carbon fiber; and a binder. (2) A ratio of a content of the binder to a content of the adsorbing material including the activated carbon fiber is 0.3 to 20 parts by weight of the binder to 100 parts by weight of the adsorbing material including the activated carbon fiber. (3) The activated carbon fiber has a fiber size of 13.0 ?m or larger.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Applicant: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Daisuke IMAI, Yoshihide WATANABE, Yu TAKATA, Dongyeon RYU
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Publication number: 20230390737Abstract: An object is to provide a new form of formed adsorbers suitable for high performance canisters. A formed adsorber for a canister is to satisfy the following conditions. The formed adsorber satisfies a condition where P0.2/100 expressed by Equation 1: P0.2/100=X÷Y×100??(Equation 1) is 120% or less. In Equation 1 above, X represents an amount of n-butane gas adsorbed per 100 parts by weight of the adsorbing material at 25° C. under an atmosphere where a gas pressure of n-butane gas is 0.2 kPa, and Y represents an amount of n-butane gas adsorbed per 100 parts by weight of the adsorbing material at 25° C. under an atmosphere where a gas pressure of n-butane gas is 100 kPa.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Daisuke IMAI, Yoshihide WATANABE, Yu TAKATA, Dongyeon RYU
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Patent number: 11834791Abstract: A method for manufacturing a paper barrier base material includes a step of applying a water vapor barrier layer coating liquid that contains at least a water vapor barrier resin and a pigment onto a paper base material by a curtain coating method to form a water vapor barrier layer, and a step of applying a gas barrier layer coating liquid that contains at least one polymer selected from water-soluble polymers and water-dispersible polymers onto the water vapor barrier layer by a curtain coating method without a drying step interposed between the two steps to form a gas barrier layer. The gas barrier layer coating liquid has a B-type viscosity equal to or higher than a B-type viscosity of the water vapor barrier layer coating liquid. The method is intended to suppress the occurrence of coating unevenness in wet-on-wet coating by a curtain coating method.Type: GrantFiled: March 26, 2020Date of Patent: December 5, 2023Assignees: NIPPON PAPER INDUSTRIES CO., LTD., JUJO THERMAL OYInventors: Kenta Watanabe, Yuri Oishi, Satoshi Tsuda, Masashi Okamoto, Hiroshi Koyamoto
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Patent number: 11807525Abstract: 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: GrantFiled: December 16, 2020Date of Patent: November 7, 2023Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Daisuke Imai, Yoshihide Watanabe, Yuu Takata, Shunsuke Ozawa, Chie Yoshida, Kenichi Fujino
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Patent number: 11760811Abstract: 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: GrantFiled: December 5, 2018Date of Patent: September 19, 2023Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Kazuhiko Inoue, Takeshi Nakatani, Yusuke Tada, Kasumi Nishigaya, Hiroyoshi Suzuki
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Patent number: 11732055Abstract: 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: GrantFiled: December 5, 2018Date of Patent: August 22, 2023Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Kazuhiko Inoue, Takeshi Nakatani, Yusuke Tada
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Publication number: 20230257492Abstract: 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: ApplicationFiled: April 19, 2021Publication date: August 17, 2023Applicant: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Tomohiro OKEDA, Takato TAKENAKA, Isamu ONO, Minoru YADA, Hiroko IWAKIRI
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Patent number: 11723382Abstract: 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: GrantFiled: August 25, 2017Date of Patent: August 15, 2023Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Taisuke Minohara, Kana Sato, Hiroshi Shinkura, Kazuhiro Kurosu, Takeshi Iimori
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Patent number: 11718721Abstract: 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: GrantFiled: January 23, 2019Date of Patent: August 8, 2023Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Takeo Suzuki, Narihiro Iio, Takashi Ino, Yusuke Sugiyama, Yasuaki Yoshida, Takuya Takahashi
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Patent number: 11712050Abstract: 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: GrantFiled: August 25, 2017Date of Patent: August 1, 2023Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Taisuke Minohara, Kana Sato, Hiroshi Shinkura, Kazuhiro Kurosu, Takeshi Iimori
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Publication number: 20230192919Abstract: 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: ApplicationFiled: May 20, 2021Publication date: June 22, 2023Applicant: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Masaru KONO, Koji KIMURA, Yasutaka WATANABE, Naosuke KOMOTO
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Publication number: 20230192992Abstract: 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: ApplicationFiled: October 19, 2020Publication date: June 22, 2023Applicant: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Kotaro ITO, Masahiro MORITA, Mei TAKAKI, Hayato KATO, Isamu ONO
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Patent number: 11649380Abstract: 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: GrantFiled: August 15, 2018Date of Patent: May 16, 2023Assignees: 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