Patents Assigned to DAICEL CORPORATION
  • Patent number: 11149118
    Abstract: The present invention provides an insulating film forming composition that excels in insulating properties and heat resistance, suppresses the occurrence of warpage, and can form an insulating film with excellent adhesion. The insulating film forming composition of the present invention contains, as a polymerizable compound, a polyorganosilsesquioxane containing siloxane constituent units; wherein the total content of: constituent units represented by formula (I) [RaSiO3/2] (I) and constituent units represented by formula (II) [RaSiO2/2(ORb)] (II) is greater than or equal to 55 mol % of the total amount of the siloxane constituent units; and the polyorganosilsesquioxane has a number average molecular weight of from 500 to 10000 and an epoxy equivalent of from 200 to 2000 g/eq.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: October 19, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Hiroto Miyake, Naoko Tsuji, Akira Yamakawa
  • Publication number: 20210317288
    Abstract: An object of the present invention is to provide a cellulose acetate composition with excellent biodegradability and water solubility, and excellent thermoformability. A cellulose acetate composition containing: a cellulose acetate having a degree of acetyl substitution of 0.4 or greater and less than 1.4; and at least one type of glycerin ester-based plasticizer selected from the group consisting of monoacetin and diacetin, wherein a content of the glycerin ester-based plasticizer is 3 parts by weight or greater per 100 parts by weight of the total amount of the cellulose acetate and the glycerin ester-based plasticizer.
    Type: Application
    Filed: August 5, 2019
    Publication date: October 14, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Kyokutou GA, Hiroki TANIGUCHI
  • Publication number: 20210316997
    Abstract: An object of the present disclosure is to provide a method for producing a core-shell porous silica particle with an increased thickness of the shell. The object is met by a method for producing a core-shell porous silica particle, the method including the following steps: (a) preparing; (b) forming a shell precursor; (c) forming a shell; (d) preparing; (e) forming a shell precursor; and (f) forming a shell; wherein the steps (d) through (f) are further repeated one to three times, in which case the step of forming a shell described in step (d) refers to step (f).
    Type: Application
    Filed: August 13, 2019
    Publication date: October 14, 2021
    Applicants: TOHOKU UNIVERSITY, DAICEL CORPORATION
    Inventors: Daisuke FUKUDA, Daisuke NAGAO, Haruyuki ISHII, Shunho ISHIKAWA
  • Patent number: 11137234
    Abstract: A gas generator including, an igniter, a housing made of metal and including a gas discharge port and a combustion chamber for burning a solid gas generating agent, the solid gas generating agent being filled at a position where the solid gas generating agent can be burned by actuation of the igniter, and the housing being configured to accommodate the igniter and an isolating member including an isolating wall interposed, inside the housing, between the gas generating agent disposed in the combustion chamber and a bottom surface and a side surface of the combustion chamber, the isolating wall being made from a predetermined resin material and being in contact with the gas generating agent to apply a predetermined holding force to the gas generating agent.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 5, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Koji Yamamoto, Mikio Yabuta
  • Publication number: 20210292602
    Abstract: Provided is a polishing composition for semiconductor wiring providing an excellent polishing rate and preventing occurrence of dishing. The polishing composition for semiconductor wiring according to the present invention contains a compound represented by Formula (1) below: R1O—(C3H6O2)n—H??(1) where R1 represents a hydrogen atom, a hydrocarbon group that has from 1 to 24 carbon atoms and may include a hydroxyl group, or a group represented by R2CO, where the R2 represents a hydrocarbon group having from 1 to 24 carbon atoms; and n represents an average degree of polymerization of glycerol units shown in the parentheses and is from 2 to 60.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 23, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Yuichi SAKANISHI
  • Publication number: 20210291779
    Abstract: A gas generator includes a housing, a combustion chamber accommodating therein a gas generating agent burned by an ignition device, a plurality of gas discharge ports provided to a wall surface that defines the combustion chamber, and communicating an inside and an outside of the combustion chamber, and a plurality of closing members respectively closing the plurality of gas discharge ports. Each of the plurality of closing members includes a covering region covering a corresponding gas discharge port of the plurality of gas discharge ports, and a joining region being joined to the wall surface of the housing, and formed adjacent to and surrounding the covering region. The joining region of each of the plurality of closing members is joined to the wall surface at a width within a range from 1 mm to 5 mm, inclusive, from a peripheral edge of the corresponding gas discharge port, and without interfering with another joining region.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 23, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Katsuhiro IMOTO, Tomoharu KOBAYASHI
  • Patent number: 11124731
    Abstract: The present invention provides a lubricant composition suitable for reducing friction between sliding members such as those within a pump for circulating a heat medium of a heat pump device, and a lubricating system using the composition as a heat medium. A lubricant composition 10 of the present invention comprises: an antifreeze liquid 11 containing ethylene glycol; and 0.01 mass % or less of nanodiamond particles 12. The nanodiamond particles 12 are preferably detonation nanodiamond particles. The lubricant composition 10 is preferably a liquid composition for a heat pump. In addition, the lubricating system of the present invention uses the lubricant composition 10 as a heat medium.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: September 21, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Norihiro Kimoto, Tomohiro Goto
  • Patent number: 11124735
    Abstract: The present invention provides an initial running-in agent composition suitable for forming a low-friction surface (running-in surface) on a sliding member, such as a hard carbon film, in a system in which water is used as a lubricant. The initial running-in agent composition (10) according to an embodiment of the present invention contains water 11 as a lubricant base and nanodiamond particles (12). In the initial running-in agent composition (10), a content of the water (11) is preferably 99 mass % or greater, and a content of the nanodiamond particles (12) is preferably 1.0 mass % or less.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 21, 2021
    Assignees: DAICEL CORPORATION, TOHOKU UNIVERSITY
    Inventors: Norihiro Kimoto, Tomohiro Goto, Koshi Adachi, Tsubasa Takahashi
  • Publication number: 20210277206
    Abstract: The purpose of the present invention is to provide a cellulose acetate excellent in transparency, and a molded article of the cellulose acetate. In the cellulose acetate, an acetylation degree is 52% or more and 59% or less, and a content of low-molecular-weight components having a molecular weight of not more than ¼ of a peak top molecular weight in a molecular weight distribution measured by gel permeation chromatography of cellulose acetate is 12% or less.
    Type: Application
    Filed: January 17, 2018
    Publication date: September 9, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Ikuhiro SUZUKI, Yuya ASHIDA, Akihiro HIGUCHI
  • Patent number: 11111337
    Abstract: Provided is a polyorganosilsesquioxane capable of forming, when cured, a cured product that offers high surface hardness and good heat resistance, is highly flexible, and has excellent processability. The present invention relates to a polyorganosilsesquioxane including a constitutional unit represented by Formula (1). The polyorganosilsesquioxane includes a constitutional unit represented by Formula (I) and a constitutional unit represented by Formula (II) in a mole ratio of the constitutional unit represented by Formula (I) to the constitutional unit represented by Formula (II) of 5 or more. The polyorganosilsesquioxane has a total proportion of the constitutional unit represented by Formula (1) and a constitutional unit represented by Formula (4) of 55% to 100% by mole based on the total amount (100% by mole) of all siloxane constitutional units.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: September 7, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Akihiro Kuwana, Nobuhiko Harada, Maya Masui, Ichiro Takase, Shinji Maetani, Naoko Tsuji
  • Publication number: 20210271103
    Abstract: A surface material for a pen input device includes a base element having a sheet shape, and a coating layer covering one surface of the base element, wherein the coating layer has a concavo-convex surface disposed on a side opposite to the base element side, recesses and protrusions having an absolute height of 1.0 ?m or greater as measured with a scanning white-light interference microscope are formed on the concavo-convex surface, and a value of a surface roughness Sa of the surface material in a range where the absolute height of the concavo-convex surface is less than 1.0 ?m as measured with the scanning white-light interference microscope is set to a value in a range of 0.10 or greater and 0.16 or less.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 2, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Shota SHIMOSUGI
  • Publication number: 20210269593
    Abstract: Provided is a curable composition having excellent workability and being capable of forming a cured product having excellent heat resistance. The curable composition of the present invention includes a compound represented by Formula (1) below and a solvent: In Formula (1) below, R1 and R2 each represent a curable functional group, and D1 and D2 each represent a single bond or a linking group. L represents a divalent group having a repeating unit containing a structure represented by Formula (I) below and a structure represented by Formula (II) below. In Formula (I) and Formula (II) below, Ar1 to Ar3 each represent a group in which two hydrogen atoms are removed from an aromatic ring structure or a group in which two hydrogen atoms are removed from a structure in which two or more aromatic rings are bonded through a single bond or a linking group. X represents —CO—, —S—, or —SO2—, and Y represents —S—, —SO2—, —O—, —CO—, —COO—, or —CONH—. n represents an integer of 0 or greater.
    Type: Application
    Filed: June 10, 2019
    Publication date: September 2, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Daisuke ITO, Tsukasa YOSHIDA, Toshihiro TAI, Hitomi TAMAOKI, Satoru SUMIMOTO
  • Publication number: 20210272033
    Abstract: Provided is a chemical product production system that can efficiently utilize the capacity of a plurality of existing chemical plants (chemical product production plants) to achieve overall optimization of the production and supply of chemical products. In the chemical product production system that effectively utilizes a plurality of chemical plants, a management server and a user terminal of each of a plurality of chemical plants are connected through a network.
    Type: Application
    Filed: May 8, 2019
    Publication date: September 2, 2021
    Applicant: Daicel Corporation
    Inventor: Kouichi OKUMURA
  • Patent number: 11104638
    Abstract: Provided is a thickening/stabilizing agent that thickens, gelatinizes, and/or stabilizes a fluid organic substance to a desired viscosity. The thickening/stabilizing agent according to the present invention contains a compound (1) represented by Formula (i) and a compound (2) represented by Formula (ii), in a mole ratio of the compound (1) to the compound (2) of 95:5 to 25:75. The four R1s in Formula (i) represent, identically in each occurrence, a C12-C18 aliphatic hydrocarbon group; and the four R2s in Formula (ii) represent, identically in each occurrence, an C4-C10 aliphatic hydrocarbon group.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: August 31, 2021
    Assignees: DAICEL CORPORATION, YAMAGUCHI UNIVERSITY
    Inventors: Yuichi Sakanishi, Takashi Saeki, Aya Kaide
  • Patent number: 11104824
    Abstract: A shaped product comprising a hardcoat layer, wherein the hardcoat layer is a cured product of a curable composition comprising a cationic curable silicone resin and a leveling agent, the cationic curable silicone resin comprising a silsesquioxane unit, having a monomer unit having an epoxy group in a proportion of not less than 50% by mol in a total monomer unit, and having a number average molecular weight of 1000 to 3000.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: August 31, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Shinji Kikuchi, Nobuhiko Harada
  • Publication number: 20210260563
    Abstract: Provided is a production method for core-shell porous silica particles, the production method including: a preparation step of preparing an aqueous solution comprising non-porous silica particles, a cationic surfactant, a basic catalyst, an electrolyte, and an alcohol; a shell precursor formation step of adding a silica source to the aqueous solution to form a shell precursor on a surface of the non-porous silica particles; and a shell formation step of removing the cationic surfactant from the shell precursor to form a porous shell.
    Type: Application
    Filed: June 17, 2019
    Publication date: August 26, 2021
    Applicants: TOHOKU UNIVERSITY, DAICEL CORPORATION
    Inventors: Daisuke NAGAO, Haruyuki ISHII, Shunho ISHIKAWA
  • Publication number: 20210261878
    Abstract: Provided is an initial break-in lubricant composition capable of easily and economically reducing the coefficient of friction of a sliding portion. The initial break-in lubricant composition includes an organic dispersion medium and nanocarbon particles in a quantity from 0.1 to 2000 ppm by mass. The nanocarbon particles are preferably particles of one or more nanocarbon material(s) selected from the group consisting of: nanodiamonds, fullerenes, graphene oxide, nanographite, carbon nanotubes, carbon nanofilaments, onion-like carbon, diamond-like carbon, amorphous carbon, carbon black, carbon nanohorns, and carbon nanocoils.
    Type: Application
    Filed: August 28, 2019
    Publication date: August 26, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Norihiro KIMOTO, Tomohiro GOTO, Hiroki KAGEYAMA
  • Publication number: 20210260790
    Abstract: Provided is a wooden sheet having high flexibility (for example, folding resistance) and processability (for example, degree of processing freedom) even if the wooden sheet is considerably thick. Also provided is a method that can be used to produce such a wooden sheet. The wooden sheet is modified with a modifying agent including a combination of an acid or an alkali and a compound having a hydroxyl group.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 26, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Yuichiro EGAWA
  • Patent number: 11099347
    Abstract: The imaging-device lens module includes a lens and a spacer. The lens includes a functioning portion, a non-functioning portion, and a support. The non-functioning portion is disposed around the periphery of, and is integral with, the functioning portion. The support is integral with the non-the functioning portion and supports the lens. The spacer has a flat top face, and the support has a flat bottom face. The spacer is bonded at the top face to the bottom face to support the lens. The top face has a width B, and the bottom face has a width A, where B is greater than A. The support has a height L1, the spacer has a height L2, and the functioning portion has a diameter D, where the total of L1 and L2 is greater than D, and where the diameter D is equal to or greater than the height L1.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: August 24, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Hiroki Takenaka, Hiromi Honma
  • Patent number: D931439
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: September 21, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Yosuke Morishita, Katsuya Miki, Hiromitsu Iga