Patents by Inventor Tomoya Mizuta

Tomoya Mizuta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11339245
    Abstract: The present invention is to provide a monomer mixture that is cured rapidly even in the presence of oxygen and that forms a cured product having high hardness and excellent adhesion to metals and/or glass. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. As the cationically polymerizable monomers, the monomer mixture contains at least 10 wt. %, based on a total amount of the monomer mixture, of a compound having at least one cationically polymerizable group selected from the group consisting of a vinyl ether group, an epoxy group, and an oxetanyl group, and at least one hydroxy group in a molecule, and at least 5 wt. %, based on the total amount of the monomer mixture, of a compound represented by Formula (b).
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: May 24, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Patent number: 11028224
    Abstract: The present invention provides a monomer mixture that rapidly cures even in high humidity environments, and is useful as a raw material for a curable composition that forms a cured product having excellent adhesion to metals and glass, as well as of course to paper and plastic. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. The monomer mixture contains, as the cationically polymerizable monomers, a compound (A) having a vinyl ether group and a hydroxyl group; a compound (B) having an oxetanyl group and a hydroxyl group; and a compound (C) represented by Formula (c) below. A total content of the compound (A), the compound (B), and the compound (C) is 50 wt. % or greater of the total amount of the monomer mixture, and a content [A] of the compound (A) and a content [B] of the compound (B) satisfy Relationship (1) below. A/(A+B)?0.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 8, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Patent number: 11028225
    Abstract: Provided is a monomer mixture that is rapidly cured to form a cured product having high hardness, excellent alkali resistance, and excellent adhesion to a substrate. The monomer mixture of the present invention is a monomer mixture containing at least: a compound represented by Formulas (a-1) and/or (a-2); a compound (2B) including two cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; a compound (3B) including three or more cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; and a compound represented by Formula (c-1).
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 8, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Patent number: 10882953
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: January 5, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Publication number: 20200377651
    Abstract: The present invention provides a monomer mixture that rapidly cures even in high humidity environments, and is useful as a raw material for a curable composition that forms a cured product having excellent adhesion to metals and glass, as well as of course to paper and plastic. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. The monomer mixture contains, as the cationically polymerizable monomers, a compound (A) having a vinyl ether group and a hydroxyl group; a compound (B) having an oxetanyl group and a hydroxyl group; and a compound (C) represented by Formula (c) below. A total content of the compound (A), the compound (B), and the compound (C) is 50 wt. % or greater of the total amount of the monomer mixture, and a content [A] of the compound (A) and a content [B] of the compound (B) satisfy Relationship (1) below. A/(A+B)?0.
    Type: Application
    Filed: January 25, 2019
    Publication date: December 3, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20200230925
    Abstract: The present invention provides a laminated body obtained by bonding a thinned glass plate and a resin film with an adhesive agent, the laminated body having excellent bending resistance. The laminated body according to an embodiment of the present invention comprising a structure having a glass plate with a thickness of 150 ?m or less and a resin film laminated with an adhesive layer; the laminated body having a bending resistance based on a test below of 10 or greater. Bending Resistance Test: in the case where a set of operation includes bending a laminated body for 180° from a state where the laminated body is stretched, in a direction that makes a surface of a glass plate concave and a bending radius 3 mm and then stretching the laminated body again, an index of the bending resistance is the number of sets of the operation until the laminated body cracks when the operation was performed at a rate of 43 sets per minute.
    Type: Application
    Filed: April 25, 2018
    Publication date: July 23, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Naotaka NISHIO, Tomoya MIZUTA, Masao IWAYA, Toshikazu NAKAMURA
  • Patent number: 10703951
    Abstract: Disclosed is a heat transport medium to be transported with a fluid that is liquid in an operating temperature range containing a porous material and a latent heat storage material penetrated in the pores of the porous material, wherein the latent heat storage material is incompatible with the fluid and has a melting point within the operating temperature range, and the porous material has a liquid repellency to the fluid, an affinity for the latent heat storage material, and a sponge hardness of not more than 50. This invention achieves stable heat transport with a high heat conversion efficiency even by circulating the medium through a pipeline over a long period of time. The porous material has an apparent density of about 0.05 to 0.5 g/cm3.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: July 7, 2020
    Assignee: DAICEL CORPORATION
    Inventors: Masao Iwaya, Tomoya Mizuta, Naotaka Nishio, Yutaka Isobe, Masatake Kudoh, Masanori Yoshikane
  • Publication number: 20200199293
    Abstract: Provided is a monomer mixture that is rapidly cured to form a cured product having high hardness, excellent alkali resistance, and excellent adhesion to a substrate. The monomer mixture of the present invention is a monomer mixture containing at least: a compound represented by Formulas (a-1) and/or (a-2) below; a compound (2B) including two cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; a compound (3B) including three or more cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; and a compound represented by Formula (c-1) below; wherein a total content of the compound represented by Formula (a-1) above and the compound represented by Formula (a-2) above is from 1 to 20 wt. % of a total amount of the monomer mixture; a ratio of contents of the compound (2B)/the compound (3B) is from 0.1 to 3.
    Type: Application
    Filed: July 19, 2018
    Publication date: June 25, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20200071453
    Abstract: Provided is a monomer mixture having fast-curing properties and forming a cured product having high hardness, excellent alkali resistance, and excellent adhesion to a substrate. The monomer mixture according to an embodiment of the present invention is a monomer mixture containing a compound represented by Formulas (a-1) and/or (a-2): a compound (2B) including two cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; and a compound (3B) including three or more cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; wherein a total content of the compound represented by Formula (a-1) above and the compound represented by Formula (a-2) above is from 1 to 20 wt. % of a total amount of the monomer mixture; the compound (2B) contains a compound represented by Formula (2b-1); and a content of the compound represented by Formula (2b-1) above is 5 wt.
    Type: Application
    Filed: July 19, 2018
    Publication date: March 5, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20200055977
    Abstract: The present invention is to provide a monomer mixture that is cured rapidly even in the presence of oxygen and that forms a cured product having high hardness and excellent adhesion to metals and/or glass. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. As the cationically polymerizable monomers, the monomer mixture contains at least 10 wt. %, based on a total amount of the monomer mixture, of a compound having at least one cationically polymerizable group selected from the group consisting of a vinyl ether group, an epoxy group, and an oxetanyl group, and at least one hydroxy group in a molecule, and at least 5 wt. %, based on the total amount of the monomer mixture, of a compound represented by Formula (b).
    Type: Application
    Filed: July 19, 2018
    Publication date: February 20, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Patent number: 10472466
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 12, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Patent number: 10392473
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition contains a multifunctional vinyl ether compound in an amount of 10 to 80 weight percent, a bifunctional oxetane compound represented by Formula (b) in an amount of 0.5 to 20 weight percent, and a monofunctional oxetane compound represented by Formula (b?) in an amount of 5 to 80 weight percent. In the formulae, Ring Z is selected from an aromatic hydrocarbon ring and a structure including two or more aromatic hydrocarbon rings bonded to each other through a single bond or a linkage group; R represents a monovalent aliphatic hydrocarbon group; R? is selected from hydrogen and ethyl; and m represents an integer of 0 or more.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: August 27, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Publication number: 20190119443
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Application
    Filed: December 7, 2018
    Publication date: April 25, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20190106540
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Application
    Filed: December 7, 2018
    Publication date: April 11, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Patent number: 10118322
    Abstract: Provided is a sheet-shaped mold possessing a high strength and having a low breakage rate in demolding even in a case where the mold is thin and has a large-area. The sheet-shaped mold is prepared by combining a cured silicone rubber containing a polyorganosiloxane and a fiber for reinforcing the cured silicone rubber. The fiber may comprise a cellulose nanofiber. The sheet-shaped mold may have an uneven pattern on at least one surface (or side) thereof. The fiber may be surface-treated with a hydrophobizing agent. The fiber may forma nonwoven fabric, and the nonwoven fabric may be impregnated with the cured silicone rubber. The cured silicone rubber may comprise a two-component curable silicone rubber having a polydimethylsiloxane unit. The sheet-shaped mold may be a mold for nanoimprint lithography using a photo-curable resin.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: November 6, 2018
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Takuya Osaka, Katsuhiro Nakaguchi, Arimichi Okumura, Hiroto Miyake, Masaya Omura, Naotaka Nishio
  • Publication number: 20180187059
    Abstract: Used as a heat transport medium to be transported with a fluid that is liquid in an operating temperature range is a medium in which a latent heat storage material is penetrated in a porous material, wherein the latent heat storage material is incompatible with the fluid and has a melting point within the operating temperature range, and the porous material has a liquid repellency to the fluid, an affinity for the latent heat storage material, and a sponge hardness of not more than 50. This achieves stable heat transport with a high heat conversion efficiency even by circulating the medium through a pipeline over a long period of time. The porous material may have continuous pores. The porous material may have a void ratio of not less than 50%. The porous material has an apparent density of about 0.05 to 0.5 g/cm3. The ratio of the latent heat storage material is about 100 to 5000 parts by weight relative to 100 parts by weight of the porous material.
    Type: Application
    Filed: June 13, 2016
    Publication date: July 5, 2018
    Applicant: Daicel Corporation
    Inventors: Masao IWAYA, Tomoya MIZUTA, Naotaka NISHIO, Yutaka ISOBE, Masatake KUDOH, Masanori YOSHIKANE
  • Publication number: 20170158814
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a multifunctional vinyl ether compound in an amount of 10 to 80 weight percent, a bifunctional oxetane compound represented by Formula (b) in an amount of 0.5 to 20 weight percent, and a monofunctional oxetane compound represented by Formula (b?) in an amount of 5 to 80 weight percent. In the formulae, Ring Z is selected from an aromatic hydrocarbon ring and a structure including two or more aromatic hydrocarbon rings bonded to each other through a single bond or a linkage group; R represents a monovalent aliphatic hydrocarbon group; R? is selected from hydrogen and ethyl; and m represents an integer of 0 or more.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 8, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20170158812
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Application
    Filed: June 23, 2015
    Publication date: June 8, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20170152346
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes at least one cationically curable monomer. The at least one cationically curable monomer includes at least one of 3-allyloxyoxetane and 3-(2-ethylhexyloxy)oxetane. The at least one of 3-allyloxyoxetane and 3-(2-ethylhexyloxy)oxetane is present in a total content of 5 weight percent or more of the total weight of the monomer composition.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 1, 2017
    Applicant: Daicel Corporation
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20170130079
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes vinyl ether compounds (A). The monomer composition contains a monofunctional monomer in an amount of 20 to 80 weight percent, a hydroxy-free multifunctional vinyl ether compound in an amount of 5 to 80 weight percent, and a hydroxy-containing vinyl ether compound in an amount of 0.1 weight percent to less than 10 weight percent, where all weight percentages are based on the total weight of the monomer composition.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 11, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE