Patents Assigned to DIC Corporation
  • Publication number: 20200278608
    Abstract: A problem to be solved by the present invention is to provide a coloring composition which contains a threne compound unlikely to be highly dispersed in glycol solvents used in color filter-preparing steps in recent years, which allows the threne compound to be highly dispersed in a glycol solvent, and which can be used without causing an undesirable influence such as a curing failure in a color filter-preparing step. The above problem is solved by providing a coloring composition containing a specific anthraquinone derivative, a threne compound, and a glycol organic solvent.
    Type: Application
    Filed: November 27, 2018
    Publication date: September 3, 2020
    Applicant: DIC Corporation
    Inventors: Kazushi Suzuki, Ryosuke Asami
  • Publication number: 20200270286
    Abstract: There are provided a compound represented by general formula (1), a photopolymerization initiator comprising this compound, a photocurable composition having this photopolymerization initiator and a photocurable compound as essential components, and a cured product formed by curing this photocurable composition, wherein in formula (1), R1 and R2 each independently represents an alkyl group or the like; R3 to R5 each independently represent a hydrogen atom, an alkyl group or the like; X1 represents a single bond or an alkylene group; and X2 represents a bonding group represented by general formulas (2) to (4), and wherein n represents an integer of 1 to 6, when n is an integer of 1, Y represents an alkyl group, an aryl group or the like.
    Type: Application
    Filed: October 10, 2017
    Publication date: August 27, 2020
    Applicant: DIC Corporation
    Inventors: Masanori Miyamoto, Tomokazu Yamada, Yong Fang, Fangxi Xiu, Changjun Deng
  • Patent number: 10752838
    Abstract: An object of the present invention is to provide a composition that realizes high ?n, has a wide liquid crystal phase temperature range, small viscosity, excellent low-temperature solubility, and high resistivity and voltage holding ratio, and is stable against heat and light, and to provide a liquid crystal composition having an excellent lens effect and excellent chemical stability using the composition, and a liquid crystal display device and a liquid crystal lens that use the liquid crystal composition. The present invention provides a liquid crystal composition that contains one or two or more compounds represented by general formula (i) and one or two or more compounds represented by general formula (ii), a liquid crystal display device using the liquid crystal composition, a liquid crystal lens using the liquid crystal composition, and a birefringence lens for stereoscopic image display using the liquid crystal composition.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: August 25, 2020
    Assignee: DIC CORPORATION
    Inventor: Haruki Ohishi
  • Publication number: 20200264461
    Abstract: An aspect of the present invention provides a light conversion film including light-emitting nanocrystalline particles configured to convert light having a predetermined wavelength into light of any of red, green, and blue and to emit the light, and a wavelength-selective transmission layer disposed on at least one side of the light conversion layer and configured to transmit light in a specific wavelength range.
    Type: Application
    Filed: September 20, 2018
    Publication date: August 20, 2020
    Applicant: DIC CORPORATION
    Inventors: Yasuhiro Kuwana, Hidetoshi Nakata, Hidehiko Yamaguchi, Takayuki Miki, Hirotomo Sasaki, Shunki Sakai
  • Patent number: 10741464
    Abstract: Provided are an active ester resin capable of having low cure shrinkage and forming a cured product having a low dielectric loss tangent, a curable resin composition including the ester resin, a cured product of the resin composition, a printed wiring board, and a semiconductor encapsulating material. The active ester resin includes a product of reaction of essential raw materials including: a phenolic hydroxyl group-containing compound (A); a polynaphthol resin (B) having a molecular structure in which naphthol compound (b) moieties are linked with an aromatic ring- or cyclo ring-containing structural moiety (?); and an aromatic polycarboxylic acid or an acid halide thereof (C). Also provided are a curable resin composition including the ester resin, a cured product of the resin composition, a printed wiring board, and a semiconductor encapsulating material.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: August 11, 2020
    Assignee: DIC Corporation
    Inventors: Yutaka Satou, Tatsuya Okamoto, Akito Kawasaki
  • Patent number: 10738242
    Abstract: A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 11, 2020
    Assignee: DIC CORPORATION
    Inventors: Fumiaki Kodera, Yoshitaka Saito, Hiroshi Hasebe, Masanao Takashima, Shuuhei Yamamoto, Kouzi Satou, Sayaka Nose, Kazuki Obi, Hiroyuki Itou
  • Patent number: 10737427
    Abstract: To provide a polyarylene sulfide (PAS) resin composition and a PAS resin molded article that are excellent in mechanical strengths such as impact resistance while maintaining excellent heat resistance of the PAS resin, and methods for producing the PAS resin composition and the PAS resin molded article. Specifically, provided are a method for producing a long fiber-reinforced PAS resin molded article, the method including obtaining a long fiber-reinforced PAS resin composition containing a PAS resin and a fiber reinforcing material having a fiber length of more than 5 mm, subsequently subjecting the resin composition and a PAS resin to dry blending, and subsequently subjecting the dry-blended substance to melting and subsequently to melt-molding; the long fiber-reinforced PAS resin composition; and a method for producing the long fiber-reinforced PAS resin composition.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: August 11, 2020
    Assignee: DIC Corporation
    Inventors: Masanori Uchigata, Yukihiko Yudate, Koji Tanaka, Taku Shimaya
  • Patent number: 10738203
    Abstract: To provide a curing accelerator for an oxidatively polymerizable unsaturated resin which can decrease the amount of cobalt metal soap used and has curing performance equal to or higher than excellent curing performance of the cobalt metal soap, and a printing ink and a coating material using the same. A curing accelerator for an oxidatively polymerizable unsaturated resin including a manganese or cobalt complex (?) containing quinolinol compound ions represented by Structural Formula (1) as a ligand, and a printing ink and a coating material including the curing accelerator. In the formula, R1 is any of a hydrogen atom, a hydrocarbon group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group, an amino group, a nitro group, a nitroso group, a sulfo group, and a halogen atom, and n is an integer of 1 to 6.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: August 11, 2020
    Assignee: DIC Corporation
    Inventors: Hiroshi Tsutsumi, Akinori Takahashi, Hiroaki Nakano, Takayuki Odashima, Ichiro Azuma
  • Publication number: 20200247746
    Abstract: An object of the present invention is to provide a dialkyl sulfide which can effectively form a metal sulfide film on a metal surface even in a low-temperature environment, has excellent storage stability, and is suitable as an extreme-pressure additive. The present invention provides a dialkyl sulfide represented by general formula (1) below (in the formula, R1 and R2 each independently represent an alkyl group, and n is an integer), wherein the content of a compound having an n value of 1 in the general formula (1) is 10.
    Type: Application
    Filed: October 27, 2016
    Publication date: August 6, 2020
    Applicant: DIC Corporation
    Inventors: Yuuki Yoneda, Hiroshi Sakata
  • Publication number: 20200239693
    Abstract: It is an object of the present invention to provide a novel yellow pigment having excellent brightness and coloring power. The object is achieved by providing a quinophthalone compound represented by the following Formula (1): (in Formula (1), X1 to X16 are each independently a hydrogen atom or a halogen atom, Y is a hydrogen atom or a halogen atom, and Z is a lower alkylene group). Furthermore, a coloring agent containing a quinophthalone compound represented by Formula (1) and a coloring composition containing the coloring agent are provided.
    Type: Application
    Filed: February 20, 2018
    Publication date: July 30, 2020
    Applicant: DIC Corporation
    Inventors: Tatsuya Shigehiro, Hitoshi Kondo, Kengo Yasui
  • Publication number: 20200239722
    Abstract: A task to be achieved by the present invention is to provide an aqueous pigment dispersion which can be used in the production of an ink having reduced coarse particles so that the ink exhibits excellent dispersibility of the pigment in the aqueous pigment dispersion and excellent storage stability on such a level that a change of the physical properties with time is unlikely to be caused. The present invention is directed to an aqueous pigment dispersion including: a pigment (A) including C.I. Pigment Orange 43(a) having a primary particle diameter of 150 nm or less; a pigment dispersing resin (B) including a radical polymerization polymer having an acid value of 80 to 150 mg KOH/g; and water (C).
    Type: Application
    Filed: March 1, 2018
    Publication date: July 30, 2020
    Applicant: DIC Corporation
    Inventors: Rei Uchida, Yoshihiro Sato
  • Patent number: 10723952
    Abstract: The present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Also provided are a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer. The present invention provides the compound represented by General Formula (I), a composition including the compound, a polymer produced by polymerizing the composition, and an optically anisotropic body including the polymer.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: July 28, 2020
    Assignee: DIC CORPORATION
    Inventors: Masahiro Horiguchi, Yutaka Kadomoto, Tetsuo Kusumoto
  • Publication number: 20200224098
    Abstract: A problem to be solved by the present invention is to provide a liquid crystal composition excellent in vertical alignment and compatibility and to provide a liquid crystal display device produced using the same. The problem is solved by a liquid crystal composition containing one or two or more kinds of self-aligning polymerizable monomers and one or two or more kinds of polymerizable monomers (or polymerizable compounds) having a specific chemical structure, and a liquid crystal display device produced using the same, specifically a liquid crystal composition containing a polymerizable monomer represented by General Formula (I) and a spontaneously aligning monomer which has a chemical structure different from that of the polymerizable monomer represented by General Formula (I), and has a polar group, and a liquid crystal display device containing the same.
    Type: Application
    Filed: May 17, 2018
    Publication date: July 16, 2020
    Applicant: DIC Corporation
    Inventors: Junichi Mamiya, Yuichi Inoue, Masaomi Kimura, Junko Yamamoto, Masanao Hayashi, Hirokazu Sugiyama
  • Publication number: 20200224047
    Abstract: The present invention provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of ?1.5 to 7.0. The present invention also provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of ?1.0 to 6.5, and the ink composition has a water (H2O) content of 90 ppm or less measured with a Karl Fischer moisture meter. The present invention also provides a light conversion layer including a plurality of pixel units, wherein the plurality of pixel units include a pixel unit containing a cured product of the ink composition, and the light conversion layer is formed of the cured product of the ink composition. The present invention also provides a color filter including the light conversion layer.
    Type: Application
    Filed: July 19, 2018
    Publication date: July 16, 2020
    Applicant: DIC CORPORATION
    Inventors: Sunao Yoshihara, Takayuki Miki, Hirotomo Sasaki, Ikuro Kiyoto, Minoru Tabuchi
  • Patent number: 10703880
    Abstract: The present invention provides a plasticizer for a vinyl chloride resin including an ester compound (A1) represented by General Formula (1): (in the formula, L's each represent an aliphatic oxycarboxylic acid residue having 3 to 18 carbon atoms or a cyclic ester residue having 3 to 18 carbon atoms, R1's each represent an alkyl group having 6 to 18 carbon atoms, R2's each represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, a represents a repeating number of the L, provided that the total of the plural a's is from 1 to 10, and x is an integer of 2 to 4), in order to provide a plasticizer for a vinyl chloride which has excellent compatibility with vinyl chloride resins and with which a vinyl chloride resin composition capable of providing a molded article having excellent freeze resistance and heat resistance can be obtained.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 7, 2020
    Assignee: DIC Corporation
    Inventors: Takafumi Noguchi, Akira Urabe, Akio Toyoda, Yoshiyuki Yaoita, Tetsurou Umemoto, Osamu Suzuki
  • Publication number: 20200208054
    Abstract: The present invention provides a liquid crystal composition, containing: one kind or two or more kinds of a first monomer having a first mesogenic skeleton, at least one polymerizable group represented by the general formula (PG1) linked to the first mesogenic skeleton, and at least one polar group linked to the mesogenic skeleton or the polymerizable group; and one kind or two or more kinds of a second monomer having a second mesogenic skeleton and a polymerizable group represented by the general formula (PG2) linked to the second mesogenic skeleton, and having a chemical structure different from that of the first monomer, in an amount of more than 0.4% by mass, which is excellent in vertical alignment, burn-in characteristics (change with time of pretilt angle), and compatibility, and provides a liquid crystal display element using the liquid crystal composition.
    Type: Application
    Filed: June 14, 2018
    Publication date: July 2, 2020
    Applicant: DIC CORPORATION (TOKYO)
    Inventors: Junko Yamamoto, Junichi Mamiya, Yuichi Inoue, Masaomi Kimura
  • Patent number: 10696852
    Abstract: A problem is to provide a silver paste which can produce, without variation in resistivity value, a conductive silver coating film exhibiting resistivity substantially equivalent to the resistance value of bulk silver in low-temperature sintering. The problem is solved by providing a silver paste including a silver nanoparticle aqueous dispersion prepared by using a compound having a polyethyleneimine skeleton as a protective agent, a compound having a functional group reactable with nitrogen atoms in the polyethyleneimine, and at least one compound selected from the group consisting of a compound having an amine functional group and a compound having an amide functional group.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: June 30, 2020
    Assignee: DIC CORPORATION
    Inventors: Kaori Kawamura, Masayuki Moriwaki, Yoshiyuki Sano
  • Publication number: 20200199452
    Abstract: A polymerizable liquid crystal composition suitable for a heat-resistant, optical film that has a small selective wavelength shift due to thermal history is disclosed. The polymerizable liquid crystal composition contains a bifunctional polymerizable liquid crystal compound represented by the following general formula (I-2), a chiral compound, and an oxime ester polymerization initiator. In formula (I-2), P121 and P122 denote a polymerizable functional group, Sp121 and Sp122 denote a C1-18 alkylene group, a single bond, or the like, X121 and X122 denote —O—, —S—, or the like, q121 and g122 denote 0 or 1, and MG122 denotes a mesogenic group represented by the general formula (I-2-b). In the general formula (I-2-b), A1, A2, and A3 denote a 1,4-phenylene group, a 1,4-cyclohexylene group, or the like, Z1 and Z2 denote —COO—, —OCO—, or the like, and r1 denotes 0, 1, 2 or 3.
    Type: Application
    Filed: May 29, 2018
    Publication date: June 25, 2020
    Applicant: DIC Corporation
    Inventors: Hidetoshi Nakata, Yasuhiro Kuwana
  • Publication number: 20200199390
    Abstract: A task to be achieved by the present invention is to provide an ink having excellent adhesion to an ink unabsorbent or non-absorbent recording medium, such as a resin film or coated paper, which is unlikely to absorb a solvent contained in an ink, and excellent setting property. The present invention is directed to an ink including a binder (A) having a carbonyl group, a compound (B) having a structure capable of reacting with the carbonyl group, and an aqueous medium in which the binder (A) and the compound (B) are dissolved or dispersed.
    Type: Application
    Filed: September 13, 2018
    Publication date: June 25, 2020
    Applicant: DIC Corporation
    Inventors: Maiko Kitade, Yoshinosuke Shimamura, Masaki Hosaka
  • Patent number: 10689474
    Abstract: The present invention relates to a method for producing a semi-IPN composite, the method including polymerizing a hydrophilic monofunctional acrylate (b1) and a polyfunctional acrylate (b2) in a solution of a polyurethane (A) prepared using an aliphatic polyisocyanate and/or an alicyclic polyisocyanate as a raw material. The present invention also relates to a method for producing a synthetic leather that includes a layer obtained by drying the semi-IPN composite obtained by the above production method. One object of the present invention is to provide a method for producing a semi-IPN composite excellent in stain resistance. The semi-INP composite obtained by the production method of the present invention is excellent in stain resistance. Therefore, the semi-IPN composite can be used particularly preferably for skin and topcoat layers of synthetic leathers for vehicles.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: June 23, 2020
    Assignee: DIC CORPORATION
    Inventors: Tetsuo Takada, Kunihiko Komatsuzaki, Kyouichi Toyomura