Patents Assigned to DIC Corporation
  • Publication number: 20240238172
    Abstract: The technical problem to be solved by the invention is to provide an aqueous dispersion which has an excellent moisture retaining property and excellent dispersion stability and can be used for various applications such as a cosmetic. It was found that the aqueous dispersion including a polysaccharide (A) having a sulfate group and a hydrophilization treatment-inorganic powder (B) has an excellent moisture retaining property and excellent dispersion stability and can be used for various applications such as a cosmetic.
    Type: Application
    Filed: February 7, 2022
    Publication date: July 18, 2024
    Applicant: DIC Corporation
    Inventors: Daigo Nonokawa, Maiko Kaneko
  • Publication number: 20240240039
    Abstract: An object of the present invention is to provide a pigment composition that is suitable as an IJ ink and has high dispersion stability and excellent storage stability, a coloring agent containing the pigment composition, and, in particular, an IJ ink. The pigment composition of the present invention contains a quinacridone pigment and a compound represented by formula (I) below. In formula (I), n represents an integer of 1 to 8. At least C.I. Pigment Red 122 is preferably contained as the quinacridone pigment.
    Type: Application
    Filed: July 28, 2022
    Publication date: July 18, 2024
    Applicants: DIC Corporation, DIC Corporation
    Inventors: Shogo Yamada, Yukiko Higuchi, Akira Kimura, Xia Yang, Wei Zhao
  • Publication number: 20240243301
    Abstract: Nickel oxide particles contain molybdenum. In the nickel oxide particles, the molybdenum may be unevenly distributed in a surface layer of the nickel oxide particles. A crystallite diameter of a [100] plane of the nickel oxide particles may be 240 nm or more. A crystallite diameter of a [101] plane of the nickel oxide particles may be 220 nm or more. A median diameter D50 of the nickel oxide particles calculated by a laser diffraction/scattering method may be 10.00 ?m or more and 1000.00 ?m or less. A method for producing the nickel oxide particles includes calcining a nickel compound in presence of a molybdenum compound. The molybdenum compound may be at least one compound selected from a group including molybdenum trioxide, lithium molybdate, potassium molybdate and sodium molybdate. In the method for producing the nickel oxide particles, a calcination temperature may be 800° C. or higher and 1600° C. or lower.
    Type: Application
    Filed: May 27, 2021
    Publication date: July 18, 2024
    Applicant: DIC Corporation
    Inventors: Shaowei YANG, Takanori WATANABE, Jianjun YUAN, Meng LI, Wei ZHAO, Jian GUO
  • Patent number: 12037524
    Abstract: An object of the present invention is to provide an adhesive tape that has high conformability and high adhesion to an adherend, particularly, to a hard adherend and that has high removability such that the adhesive tape, when peeled off, can be easily peeled off if it is stretched not only in the horizontal direction of the adhesive tape but also at an angle, without the need to embrittle the adhesive tape, for example, by heating or by using an organic solvent and without leaving an adhesive on the adherend. The present invention relates to an adhesive tape including an adhesive layer containing a filler. The adhesive tape has a thickness of more than 150 ?m and less than 1,500 ?m, an elongation at break of 600% to 3,000%, and a tensile strength at break of 2.5 to 80.0 MPa.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: July 16, 2024
    Assignee: DIC CORPORATION
    Inventors: Daisuke Watanabe, Takamine Sugiura
  • Publication number: 20240228786
    Abstract: An object of the present invention is to provide a pigment composition and an ink (in particular, a waterborne ink) that can reduce a viscosity increase over time when an azo lake pigment is used as a pigment and also have excellent color strength and gloss in printed products. The pigment composition according to the present invention includes a divalent metal lake azo pigment, and 0.1% by weight to 20% by weight of a divalent metal salt of a mono- or di-carboxylic acid compound. The divalent metal of the divalent metal salt is preferably an alkaline earth metal ion. The mono- or di-carboxylic acid compound is preferably a mono- or di-carboxylic acid compound having a carbon number of 4 to 20.
    Type: Application
    Filed: March 10, 2022
    Publication date: July 11, 2024
    Applicant: DIC Corporation
    Inventors: Takuya Yoshida, Arata Kudo, Yukiko Higuchi, Akira Kimura
  • Publication number: 20240227411
    Abstract: The present invention relates to a pigment dispersion for ink jet ink, including a binder (A), a pigment (B), and an aqueous medium (C). The pigment dispersion is characterized in that the binder (A) is a binder containing a urethane resin (A1) which is a reaction product of polyol (a1), containing polyol (a1-1) having an acid group and polyester polyol (a1-2) other than the polyol (a1-1), with polyisocyanate (a2) containing polyisocyanate (a2-1) having a ring structure, the acid groups possessed by the urethane resin (A1) are partially or entirely neutralized, and the glass transition temperature of the urethane resin (A1) is 70° C. or less.
    Type: Application
    Filed: May 19, 2022
    Publication date: July 11, 2024
    Applicant: DIC Corporation
    Inventors: Naruhito Suzuki, Takashi Nishijima, Minoru Shigemori, Iwao Hattori
  • Publication number: 20240229264
    Abstract: A hydrogen generation catalyst according to a first aspect of the present invention contains a molybdenum sulfide powder containing molybdenum disulfide having a 3R crystal structure. A hydrogen generation catalyst according to a second aspect of the present invention contains a metal-doped molybdenum sulfide powder containing a doping metal in Groups 3 to 13 and molybdenum disulfide having a 3R crystal structure.
    Type: Application
    Filed: February 2, 2022
    Publication date: July 11, 2024
    Applicant: DIC Corporation
    Inventors: Youki Kou, Yusuke Kano, Minoru Tabuchi, Jianjun Yuan
  • Publication number: 20240228878
    Abstract: It is an object of the present invention to provide a compound that can provide a liquid crystal composition with a high Tni, a high ?n, a low Vth, a high ??r, a low tan ?iso, and high storage stability at low temperatures, a liquid crystal composition, as well as a liquid crystal display element, a sensor, a liquid crystal lens, optical communication equipment, and an antenna each using this. Specifically disclosed are a compound represented by the general formula (i) having an ethynylene group (—C?C—) and an isothiocyanate group (—NCS) and a liquid crystal composition containing one or two or more of the compounds.
    Type: Application
    Filed: February 17, 2022
    Publication date: July 11, 2024
    Applicant: DIC Corporation
    Inventors: Shinichi Hirata, Mika Takasaki, Masanao Hayashi, Noriyuki Sugiyama, Yasuo Umezu
  • Patent number: 12031002
    Abstract: Provided is a prepreg including: a resin composition including a urethane (meth)acrylate (A), a polymerization initiator (B), and an amine catalyst (C); and reinforcement fibers (D). The urethane (meth)acrylate (A) is a reaction product of a polyisocyanate compound (al) and a hydroxyl group-containing compound (a2), the polyisocyanate compound (a1) including polymethylene polyphenyl polyisocyanate and diphenylmethane diisocyanate, the hydroxyl group-containing compound (a2) including a compound having a hydroxyl group and a (meth)acryloyl group.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: July 9, 2024
    Assignee: DIC CORPORATION
    Inventors: Naoki Katou, Tomoaki Shinchi
  • Publication number: 20240218112
    Abstract: Provided is a phenolic resin being a reaction product of a catechol compound and an ortho-xylylene skeleton-containing compound, and having a catechol skeleton derived from the catechol compound and an ortho-xylylene skeleton derived from the ortho-xylylene skeleton-containing compound. A cured product obtained by using an epoxy resin obtained by using this phenolic resin can exhibit high heat resistance and high bending properties (bending strength, bending elastic modulus, and the like) and is thus suitably used for fiber-reinforced composite materials and fiber-reinforced resin molded products.
    Type: Application
    Filed: April 21, 2022
    Publication date: July 4, 2024
    Applicants: DIC Corporation, DIC Corporation
    Inventors: Shinji Onda, Kunihiro Morinaga
  • Patent number: 12022048
    Abstract: A display unit color-correction method includes: a first step of displaying a prescribed image on a display unit of a portable communication terminal that includes an imaging unit and the display unit; a second step of acquiring imaging data by imaging a color chart, which is a printed matter, and the display unit with the prescribed image displayed thereon together or individually by the imaging unit; and a third step of correcting a color of the display unit by using color information on the prescribed image in the imaging data and color information on a color in the color chart in the imaging data.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: June 25, 2024
    Assignee: DIC Corporation
    Inventors: Masato Takahashi, Norimichi Tsumura
  • Patent number: 12017980
    Abstract: Provided are a monofunctional phenolic compound used for producing an active ester resin capable of forming a cured product having excellent dielectric properties and excellent heat resistance, an active ester resin and a method for producing the active ester resin, and a thermosetting resin composition and a cured product of the thermosetting resin composition. Specifically, provided are a monofunctional phenolic compound including one or more vinylbenzyl groups and an active ester resin including a vinylbenzyl structure attached to a terminal group of the molecular chain and derived from the monofunctional phenolic compound. The vinylbenzyl structure preferably includes a vinylbenzyl-modified aryloxycarbonyl group.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: June 25, 2024
    Assignee: DIC Corporation
    Inventors: Masaki Hazama, Koji Hayashi
  • Publication number: 20240199837
    Abstract: A method for separating a colored resin composition is provided, which can easily separate a colored resin composition into a color pigment and a resin and can implement energy-saving and efficient material recycling. In the method for separating a colored resin composition, a resin is dissolved from a colored resin composition containing a condensed polycyclic organic pigment and/or carbon black into a liquefied solvent containing one or two or more of liquid dimethyl ether, liquid propane, and liquid butane, and the condensed polycyclic organic pigment and/or carbon black and the resin are separated.
    Type: Application
    Filed: April 21, 2022
    Publication date: June 20, 2024
    Applicant: DIC Corporation
    Inventor: Kengo Yasui
  • Publication number: 20240198634
    Abstract: Provided is a method for manufacturing an electromagnetic wave-shielding member that is a laminated body having a plating layer formed on a surface of a polyarylene sulfide (PAS) molded product. Provided are an electromagnetic wave-shielding member and a method for manufacturing the electromagnetic wave-shielding member including a step of roughening a surface of a molded product obtained by molding a PAS resin composition by a chemical etching treatment, and a step of subjecting the roughened surface of the molded product to a plating treatment, wherein the laminated body has a plating layer on at least two surfaces that are paired, and the PAS resin composition is obtained by mixing a PAS resin (A), a thermoplastic resin (B) other than the polyarylene sulfide resin selected from the group consisting of a thermoplastic elastomer (b1) and a hydrolyzable thermoplastic resin (b2), a carbonate (C), and a polyolefin wax (D).
    Type: Application
    Filed: March 3, 2022
    Publication date: June 20, 2024
    Applicant: DIC Corporation
    Inventors: Takamichi Aoki, Tomomichi Kanda
  • Publication number: 20240199785
    Abstract: The present invention provides a curable resin composition for stereolithography, which contains a urethane resin (A) having a (meth)acryloyl group and a photopolymerization initiator. The content of (meth)acryloyl group in the urethane resin (A) is 0.8 mmol/g or more and 2.2 mmol/g or less. The curable resin composition for stereolithography has low viscosity and can form a cured product excellent elastic modulus and impact resistance because of high impact strength and little change with time.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 20, 2024
    Applicant: DIC Corporation
    Inventors: Ikuma Shimizu, Yoshinobu Deguchi
  • Patent number: 12012529
    Abstract: A problem to be solved by the present invention is to provide an adhesive tape capable of maintaining excellent adhesive strength for a long time even when sweat, sebum, an alcohol, or the like adheres thereto. The present invention relates to an adhesive tape having an adhesive layer containing an acrylic adhesive, the acrylic adhesive including an acrylic copolymer, in which the acrylic copolymer contains, as constituent components, (A) 5 to 20% by mass of a carboxyl group-containing monomer, (B) 0.01 to 1% by mass of a hydroxyl group-containing monomer, and (C) one or two or more selected from the group consisting of other alkyl (meth)acrylate monomers and alicyclic monomers, in which the average number of carbon atoms of saturated hydrocarbon groups included in the monomers (C) is 4 or less.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: June 18, 2024
    Assignee: DIC CORPORATION
    Inventors: Yoshimi Furukawa, Yusuke Takahashi, Hiroyuki Nakashima, Takeshi Iwasaki, Keiji Tsunashima, Sin Sou
  • Publication number: 20240191023
    Abstract: A modified polyester resin production method, including a step of allowing a polyhydroxyalkanoic acid to react with a reactive raw material satisfying at least any one of Condition (A-1) and Condition (A-2) described below, and Condition (B) described below, in the absence of a solvent and at a reaction temperature lower than a decomposition temperature of the polyhydroxyalkanoic acid. Condition (A-1): The reactive raw material contains a diol and a dicarboxylic acid component. Condition (A-2): The reactive raw material contains a polyester resin other than the polyhydroxyalkanoic acid. Condition (B): A ratio of an aromatic monomer configuring the reactive raw material in the reactive raw material is 0% by mole or more and less than 50% by mole.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 13, 2024
    Applicant: DIC Corporation
    Inventors: Yuuichi Satokawa, Shou Inagaki, Mizuki Endou, Hidetomo Kai, Akira Takano, Tomoki Dohi
  • Patent number: 12006485
    Abstract: The present invention provides a lubricating oil additive, including: a molybdenum compound (A) represented by the following general formula (1); and a sulfur-based composition (B) containing a sulfur-based compound (b-1) represented by the following general formula (2) and at least one kind of sulfur-based compound (b-2) represented by the following general formula (3) or (4), and a lubricating oil composition containing the additive. In the formula (1), R1 to R4 each represent alkyl groups having 6 to 18 carbon atoms, the groups being identical to or different from each other, and X1 to X4 each independently represent an oxygen atom or a sulfur atom. In the formula (2), R5 and R6 each represent alkyl groups having 3 to 24 carbon atoms, the groups being identical to or different from each other, and “a” and “b” each represent a number from 1 to 5.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: June 11, 2024
    Assignees: ADEKA CORPORATION, DIC CORPORATION
    Inventors: Shinji Iino, Eiji Katsuno, Taro Sumi, Hironobu Matsueda, Hiroshi Sakata
  • Patent number: 11999892
    Abstract: A compound that helps achieve a high voltage holding ratio (VHR) of a liquid crystal composition, a liquid crystal composition that contains this compound, and a liquid crystal display element made with this liquid crystal composition. More specifically, a compound represented by general formula (Y), which has polymerizable groups and polar group(s). A liquid crystal composition containing one or two or more compounds represented by general formula (Y), each of which has polymerizable groups and polar group(s). A liquid crystal display element made with a liquid crystal composition that contains one or two or more compounds represented by general formula (Y), each of which has polymerizable groups and polar group(s).
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: June 4, 2024
    Assignee: DIC Corporation
    Inventors: Yuichi Inoue, Daiki Noro, Yutaka Kadomoto, Hirokazu Sugiyama, Noriyuki Sugiyama
  • Patent number: 11999112
    Abstract: Provided are a composite structure that is formed by joining a metal member and a molded article of a polyarylene sulfide resin composition and is more excellent in terms of joint strength and heat cycle resistance and a producing method therefor. More specifically, provided are a composite structure formed by joining a surface-roughened metal member and a PPS member, in which a number average value of developed area ratios (Sdr) of an interface measured at five random points on a surface of the surface-roughened metal member using a confocal microscope based on ISO 25178 is 5 [%] or more, and a melt viscosity of a PPS resin is 15 to 500 [Pa·s], and a producing method therefor.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: June 4, 2024
    Assignee: DIC Corporation
    Inventors: Kenji Nakamura, Kenta Hiwatashi, Hideaki Kikuchi