Patents Assigned to Nippon Shokubai Co., Ltd.
  • Publication number: 20210296700
    Abstract: The present invention aims to provide an electrolyte composition from which an electrolyte film having a higher battery performance than typical electrolyte films is obtained. The present invention provides an electrolyte composition containing an alkali metal salt. The composition further contains a photocurable and/or thermosetting monomer; and a salt dissociating agent. A content ratio of the alkali metal salt is 50% by mass or more relative to 100% by mass of the total amount of the alkali metal salt, the photocurable and/or thermosetting monomer, and the salt dissociating agent.
    Type: Application
    Filed: July 5, 2019
    Publication date: September 23, 2021
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventor: Shin-ya SHIBATA
  • Patent number: 11118074
    Abstract: The present invention aims to provide a coating material which has high mechanical stability and is capable of providing a coat which has excellent appearance and exhibits excellent damping properties in a wide temperature range. The present invention relates to a damping-imparting agent including a compound having a sulfosuccinic acid (salt) structure. The present invention also relates to a resin composition for damping materials, including an emulsion prepared by polymerizing a monomer component, the composition further including a component having a sulfosuccinic acid (salt) structure.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 14, 2021
    Assignee: Nippon Shokubai Co., Ltd.
    Inventor: Yukihiro Miyawaki
  • Publication number: 20210269606
    Abstract: A production method includes a surface-crosslinking step of heating a mixture of a surface-crosslinking agent and a particulate dried polymer obtained with an acid group-containing unsaturated monomer as a main component. A moisture content of the particulate dried polymer is not greater than 15% by mass. A heating device including a rotary container and a plurality of heating tubes that are located within the rotary container, extend in an axial direction of the rotary container, and rotate together with the rotary container, is used in the surface-crosslinking step. The heating device includes a means for introducing and discharging a gas into and from the rotary container.
    Type: Application
    Filed: May 15, 2019
    Publication date: September 2, 2021
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Ryota WAKABAYASHI, Shin-ichi FUJINO, Mai SATO, Yoshihiro SHOBO, Shin-ya KATSUBE, Kunihiko ISHIZAKI
  • Publication number: 20210267886
    Abstract: A gel-in-oil emulsion comprising a gelled water-soluble polymer, an oil, and a surfactant, and a transdermal absorption preparation comprising the gel-in-oil emulsion.
    Type: Application
    Filed: June 27, 2019
    Publication date: September 2, 2021
    Applicants: Nippon Shokubai Co., Ltd., Kyushu University, National University Corporation
    Inventors: Hiroyuki Ijima, Nana Shirakigawa, Emiko Yamamoto
  • Patent number: 11104753
    Abstract: The purpose of the present invention is to provide an organic polymer fine particle which can be hardly fallen off from a film when used as an anti-blocking agent for a film. The organic polymer fine particle according to the present invention is characterized in comprising a (meth)acrylate polymer crosslinked by a bifunctional crosslinkable monomer and a hindered phenol antioxidant or a component derived therefrom, wherein a ratio of a structure unit composed of the bifunctional crosslinkable monomer in the (meth)acrylate polymer crosslinked by the bifunctional crosslinkable monomer is 5 mass % or more and 35 mass % or less, the sedimentation start time is 16 seconds or more, an amount of Al measured by a high-frequency inductively coupled plasma emission spectrometric analysis method is 1 ppm or less, and an amount of a sulfur atom measured by a high-frequency inductively coupled plasma emission spectrometric analysis method is 300 ppm or less in the organic polymer fine particle.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: August 31, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Hiroko Okochi, Tomonari Takata, Kazuaki Matsumoto, Yasutaka Nakatani
  • Publication number: 20210253450
    Abstract: A draw solute for forward osmosis membrane process, comprising an addition polymer obtained by addition polymerization of an alkylene oxide having 2 to 10 carbon atoms to an amine compound.
    Type: Application
    Filed: August 28, 2019
    Publication date: August 19, 2021
    Applicants: Nippon Shokubai Co., Ltd., National University Corporation Kobe University
    Inventors: Koji Koyama, Yuki Miyoshi, Hideto Matsuyama, Asuka Inada
  • Patent number: 11077069
    Abstract: The present invention provides a star-shaped acrylic block polymer having a star-shaped structure in which at least three chain polymer portions radiate from a mercapto group situated at the center, wherein (meth)acrylic acid alkyl ester structural units having 7-17 carbon atoms account for 30-99.9% by mass of whole structural units of the star-shaped acrylic block polymer, and at least one of the chain polymer portions has a copolymer structure of polymerizable monomers containing a (meth)acrylic acid alkyl ester having 7-17 carbon atoms and a weakly basic monomer; and a medical patch containing an adhesive composition containing a salt of a basic drug and the star-shaped acrylic block polymer as an adhesive that exhibits high drug efficacy, that does not cause a decrease in adhesive property of an adhesive base due to an additive, and that causes less skin irritation.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: August 3, 2021
    Assignees: TEIKOKU SEIYAKU CO., LTD, NIPPON SHOKUBAI CO., LTD.
    Inventors: Satoshi Kawakami, Manabu Sogabe, Taiki Shibata, Yasushi Horikawa, Hiroaki Hasegawa
  • Patent number: 11053408
    Abstract: Provided is a vibration damping composite capable of providing a vibration damping material, at low cost, that exhibits a high vibration damping property in a wide temperature range and has excellent appearance. The present invention relates to a resin composition for vibration damping materials which contains a lignin and/or a lignin derivative. The present invention also relates to a vibration damping composite containing the resin composition for vibration damping materials and an inorganic pigment. The present invention also relates to a vibration damping material obtainable from the vibration damping composite.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 6, 2021
    Assignee: Nippon Shokubai Co., Ltd.
    Inventor: Yukihiro Miyawaki
  • Patent number: 11020726
    Abstract: The present invention provides polyacrylic acid (salt)-based water-absorbing resin powder having an excellent fluid retention capacity under pressure, an excellent water absorption speed, and an excellent liquid permeability and a method for producing the polyacrylic acid (salt)-based water-absorbing resin powder. The earlier-described objects are attained by: a method for producing water-absorbing resin powder which includes adding an inorganic compound to a crosslinked hydrogel polymer obtained in a polymerization step of polymerizing a polyacrylic acid (salt) and performing crushing in specific gel-crushing conditions; and the resultant water-absorbing resin powder.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: June 1, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kenji Tada, Kazushi Torii
  • Patent number: 11021557
    Abstract: The present invention provides a carboxyl group-containing copolymer having a better calcium ion trapping ability and a better carbon black dispersing ability than any conventional carboxyl group-containing copolymers. The present invention relates to a carboxyl group-containing copolymer including a structural unit (a) derived from an unsaturated monocarboxylic acid monomer (A), a structural unit (b) derived from an unsaturated dicarboxylic acid monomer (B), and a structural unit (c) derived from a cationic monomer (C).
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: June 1, 2021
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hikaru Takahashi, Ryosuke Takechi, Yasuhiro Ono
  • Patent number: 11015011
    Abstract: An object of the present invention is to provide a method for producing a maleimide block copolymer having an acrylic monomer-derived structural unit. Provided is a method for producing a block copolymer having a polymer block (A) containing an acrylate-derived structural unit and a polymer block (B) containing an N-substituted maleimide ring structure and a methacrylate-derived structural unit, the method comprising a polymerization step in which a nitroxide polymer (A1) having a polymer block (A) and an organophosphorus unit-containing nitroxide structure at an end of the polymer block (A) and a monomer (B1) containing a methacrylate and an N-substituted maleimide are polymerized in the presence of a thiol compound (C1).
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: May 25, 2021
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Tomoaki Kitamura, Shin-ya Imoto, Hidetaka Nakanishi, Yutaka Takahashi
  • Publication number: 20210123012
    Abstract: The present invention provides a cell culture sheet comprising a plurality of recesses each having an opening of 1000 ?m or less in diameter, wherein each recess has an inner circumferential face and a bottom face, wherein the inner circumferential face has a non-cell adhesive surface, and wherein the bottom face has a cell-adhesive surface; and a method for producing a cell culture sheet, the method comprising laminating of a layer having a non-cell adhesive surface and a layer having a cell-adhesive surface, wherein the layer having a non-cell adhesive surface has a plurality of through-holes of 1000 ?m or less in diameter. The cell culture sheet of the present invention can be prepared simply and assists efficient cell culture operation, and therefore can preferably be used in the field of cell-based pharmaceutical preparations, for example, spheroid-containing pharmaceutical preparations etc.
    Type: Application
    Filed: July 9, 2019
    Publication date: April 29, 2021
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Tomomi MAKINO, Fumiaki SHIMA, Koji NAKAZAWA
  • Patent number: 10982167
    Abstract: A viscosity index improver comprising a copolymer having a unit (a) derived from a maleimide monomer and a unit (b) derived from a macromonomer, wherein viscosity measured by the following method is 8000 mPa·s or less. Viscosity measurement method: A solution composed of 78 mass % of a Group III base oil (viscosity index: 122, kinematic viscosity at 40° C.: 19.6 mm2/s) on the American Petroleum Institute (API) classification and 22 mass % of the copolymer is measured with a viscometer (TVB-10 manufactured by Toki Sangyo Co., Ltd., rotor: SPINDLE No. M3, rotation speed: 6 rpm) at 25° C.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: April 20, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Yohei Imaizumi, Keiko Izumi, Kazunari Yasumura, Daisuke Matsui
  • Patent number: 10974223
    Abstract: [Object] To provide a method for producing a water-absorbent resin in powder form or particle form, which has excellent physical properties such as water absorption performance and the like, at high productivity. [Solution] A method for producing a water-absorbent resin includes: a polymerization step of polymerizing a monomer, which is a raw material of the water-absorbent resin, to obtain a hydrous gel crosslinked polymer dispersed in an organic solvent; and a separation step of separating the organic solvent and the hydrous gel crosslinked polymer. The separation step includes transfer, compression, and discharge of the hydrous gel crosslinked polymer.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 13, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Tokio Shuto, Motohiro Imura, Shin-Ichi Fujino, Koji Honda, Ryota Wakabayashi
  • Patent number: 10978740
    Abstract: The objective of the present invention is to provide an electrolyte solution of which electrolyte salt concentration is high and by which cycle characteristics hardly deteriorate and battery lifetime can be extended, and a lithium ion secondary battery which contains the above electrolyte solution. The electrolyte solution of the present invention comprises an electrolyte salt and a solvent, wherein a concentration of the electrolyte salt is more than 1.1 mol/L, the electrolyte salt contains a compound represented by the following formula (1): (XSO2) (FSO2)NLi (1) (wherein X is a fluorine atom, a C1-6 alkyl group or a C1-6 fluoroalkyl group), and the solvent contains a cyclic carbonate.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: April 13, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Hiroyuki Mizuno, Kazuhisa Hirata, Takeo Kawase, Izuho Okada, Hiromoto Katsuyama, Miwako Tominaga, Masayuki Okajima
  • Patent number: 10961358
    Abstract: To provide a water-absorbing resin composition having both a high centrifuge retention capacity (CRC) and a sufficient urine resistance and a method for producing such a water-absorbing resin composition, an aspect of the present invention is a water-absorbing resin composition having the following properties: (1) A centrifuge retention capacity (CRC) being not less than 35 g/g; (2) A post-degradation-test one-hour eluted soluble component being not more than 19% by mass; (3) An absorbency against pressure 0.7 psi (AAP0.7) being not less than 10 g/g; and (4) A content of a water-absorbing resin in dust being not more than 300 ppm with respect to a total mass of the water-absorbing resin composition.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: March 30, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Taku Iwamura, Yasuhisa Nakajima, Kazushi Torii, Taku Fujimoto, Hiroki Kawada
  • Patent number: 10934031
    Abstract: A method for filling a particulate water absorbing agent includes a filling step of filling a particulate water absorbing agent into a filling container and a vibrating step of vibrating the filling container at the outside of the filling container, the vibrating step being conducted at least one time between the start and the end of the filling step, in which a vibration condition in the vibrating step satisfies the following conditions (a) and (b):(a) vibration by a vibrating body in contact with the filling container has a vertical directional component and a vibrational angle is within 90°±30°; and (b) total amplitude at no load and a vibration frequency at no load of the vibrating body are set so as to satisfy Equation 1-1 and Equation 2 or Equation 1-2 and Equation 2.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 2, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kazushi Torii, Shigeru Sakamoto, Kenji Tada, Kazuki Kimura, Yusuke Watanabe
  • Publication number: 20210047530
    Abstract: In the present invention, a photocurable composition for a support material for an inkjet 3D printer comprises a water-soluble ethylenically unsaturated monomer containing an ionic group and a counter ion, and a water content is not more than 10 mass % in 100 mass % of the photocurable composition for a support material. It is preferably that the photocurable composition for a support material for an inkjet 3D printer further comprises a photopolymerization initiator.
    Type: Application
    Filed: February 26, 2019
    Publication date: February 18, 2021
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Hirotaka Mizoguchi, Yasunori Tsujino
  • Patent number: 10919834
    Abstract: A method for producing (meth)acrylic acid comprising: a step of obtaining a (meth)acrylic acid-containing gas by subjecting a (meth)acrylic acid production raw material to a catalytic gas phase oxidation reaction; a step of obtaining a (meth)acrylic acid-containing liquid by bringing the (meth)acrylic acid-containing gas into contact with a collection solvent and/or condensing the (meth)acrylic acid-containing gas by cooling; a step of obtaining crude (meth)acrylic acid by introducing the (meth)acrylic acid-containing liquid into a low-boiling separation column; a step of obtaining purified (meth)acrylic acid and a refining residue containing a glyoxal compound by purifying the crude (meth)acrylic acid; and a step of returning at least a part of the refining residue to the low-boiling separation column; wherein a returning position of the refining residue to the low-boiling separation column is located closer to a bottom side of the low-boiling separation column than a supply port of the (meth)acrylic acid-co
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: February 16, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Yuki Kase, Toyofumi Sakai, Yasutaka Takemoto, Masashi Mukae
  • Publication number: 20210036371
    Abstract: An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), R1 represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, R2 represents an alkali metal ion.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Yasunori OKUMURA, Shimpei SATO, Masayuki OKAJIMA, Takayuki KOBATAKE, Hiromoto KATSUYAMA