Patents by Inventor Tadahiko MIKAMI

Tadahiko MIKAMI 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).

  • Publication number: 20240124642
    Abstract: It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin composition substantially contains no curing agent, and (iii) the polyester resin (A) includes, as a polyol component constituting the polyester resin (A), a diol (a) having two primary hydroxy groups and having no alicyclic structure, and, furthermore, one or both of a diol (b) having an alicyclic structure, and a diol (c) having one primary hydroxy group and one secondary hydroxy group and having no alicyclic structure.
    Type: Application
    Filed: February 3, 2022
    Publication date: April 18, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
  • Publication number: 20240110005
    Abstract: It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin composition substantially contains no curing agent, and (iii) a content of tetrahydrofuran-insoluble matter is 10 mass % or more when the polyester resin composition has been heated at 240° C. for one hour.
    Type: Application
    Filed: February 3, 2022
    Publication date: April 4, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
  • Publication number: 20240084127
    Abstract: It is provided that a polyester resin and a polyester resin composition that allow induction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin (A) includes, as a polyol component constituting the polyester resin (A), a diol (a) having two primary hydroxy groups and having no alicyclic structure, and, furthermore, one or both of a diol (b) having an alicyclic structure, and a diol (c) having one primary hydroxy group and one secondary hydroxy group and having no alicyclic structure, and (iii) the polyester resin (A) has unsaturated dicarboxylic acid (d) as a polycarboxylic acid component constituting the polyester resin (A).
    Type: Application
    Filed: February 3, 2022
    Publication date: March 14, 2024
    Applicant: TOYOBO MC Corporation
    Inventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
  • Patent number: 11732164
    Abstract: The present invention aims to provide an adhesive composition which exhibits high adhesive property not only to the conventional polyimide and polyester film but also to a metal substrate, can achieve high solder heat resistance and exhibits excellent low-dielectric characteristics. According to the present invention, there is provided an adhesive composition containing an acid-modified polyolefin (a), an oligo-phenylene ether (b) having a number-average molecular weight of 3000 or less, and an epoxy resin (c), wherein the adhesive composition satisfies the following requirement(s) (A) and/or (B): (A) The adhesive composition contains more than 20 parts by mass and 60 parts by mass or less of the epoxy resin (c) to 100 parts by mass of the acid-modified polyolefin (a); (B) The adhesive composition further contains a polycarbodiimide (d).
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 22, 2023
    Assignee: TOYOBO MC CORPORATION
    Inventors: Ryo Sonoda, Tadahiko Mikami, Tetsuo Kawakusu
  • Publication number: 20230095125
    Abstract: The present inventors conducted intensive studies for solving the problems. As a result, they found a heat-sealable polyester resin which can be used for food application and which exhibits excellent adhesiveness to various containers made of polystylene, polyvinyl chloride, A-PET (amorphous polyethylene terephthalate) , or polypropylene, each having different property. The aim of the present invention is to provide a polyester resin which exhibits excellent adhesiveness to various substrates such as polystylene, polyvinyl chloride, or A-PET. According to the present invention, there is provided a polyester resin containing a polycarboxylic acid component and a polyhydric alcohol component as constitution units, wherein, when the total amount of the polyhydric alcohol component is taken as 100 mol%, the content of diethylene glycol component is 60 mol% or more, and wherein the glass transition temperature of the polyester resin is 20° C. or lower.
    Type: Application
    Filed: March 26, 2021
    Publication date: March 30, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Yasuhiro SAKAMOTO, Tadahiko MIKAMI, Hiroki OKAJIMA
  • Publication number: 20230078293
    Abstract: The present invention aims to provide an adhesive composition excellent in storage stability, adhesiveness, blocking resistance, and water resistance. A crystalline polyester resin containing a polycarboxylic acid component and a polyhydric alcohol component as copolymerization components, wherein 30 to 70 mol % of terephthalic acid and 10 to 60 mol % of 1,4-cyclohexanedicarboxylic acid are contained as the polycarboxylic acid component, and 50 mol % or more of 1,4-butanediol is contained as the polyhydric alcohol component, wherein the acid value of the crystalline polyester resin is 100 to 600 eq/t, wherein the glass transition temperature of the crystalline polyester resin is ?30 to 30° C., and wherein the melting point of the crystalline polyester resin is 70 to 160° C.
    Type: Application
    Filed: February 16, 2021
    Publication date: March 16, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Tadahiko MIKAMI, Yasuhiro SAKAMOTO
  • Patent number: 11459492
    Abstract: The present invention aims to provide an adhesive composition having excellent adhesive property and excellent anti-fogging property by way of simple and easy means such as co-extrusion with a substrate film, extrusion coating, solvent coating, etc. According to the present invention, there is provided an adhesive composition, characterized in that it contains a polyester resin (A) and an anti-fogging agent (C), and satisfies the following requirement (1): (1) Glass transition temperature of the polyester resin (A) is from ?30 to 30° C.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: October 4, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Tadahiko Mikami, Masahito Tanigawa
  • Patent number: 11312880
    Abstract: The present invention aims to provide a copolymerized polyester which is effective as a binder ingredient for aqueous paint, and a copolymerized polyester aqueous dispersion.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: April 26, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Yuji Iwashita, Tadahiko Mikami
  • Publication number: 20210371581
    Abstract: The present invention aims to provide a copolymerized polyester and a resin composition which are excellent in storage stability, water-resistant adhesion, processability, weathering resistance and leveling property. According to the present invention, there is provided a copolymerized polyester containing a polyvalent carboxylic acid component and a polyhydric alcohol component as copolymerization components, wherein, when a content of the polyvalent carboxylic acid component is taken as 100% by mole, a content of an alicyclic polyvalent carboxylic acid component is 50% by mole or more, and wherein the copolymerized polyester has an acid value of 170 to 1000 equivalents/106 g.
    Type: Application
    Filed: December 18, 2019
    Publication date: December 2, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Koichi SAKAMOTO, Tadahiko MIKAMI, Yuji IWASHITA, Katsuya SHIMENO
  • Publication number: 20210002523
    Abstract: The present invention aims to provide an adhesive composition which exhibits high adhesive property not only to the conventional polyimide and polyester film but also to a metal substrate, can achieve high solder heat resistance and exhibits excellent low-dielectric characteristics. According to the present invention, there is provided an adhesive composition containing an acid-modified polyolefin (a), an oligo-phenylene ether (b) having a number-average molecular weight of 3000 or less, and an epoxy resin (c), wherein the adhesive composition satisfies the following requirement(s) (A) and/or (B): (A) The adhesive composition contains more than 20 parts by mass and 60 parts by mass or less of the epoxy resin (c) to 100 parts by mass of the acid-modified polyolefin (a); (B) The adhesive composition further contains a polycarbodiimide (d).
    Type: Application
    Filed: May 17, 2019
    Publication date: January 7, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Ryo SONODA, Tadahiko MIKAMI, Tetsuo KAWAKUSU
  • Publication number: 20200317954
    Abstract: The present invention aims to provide a copolymerized polyester which is effective as a binder ingredient for aqueous paint, and a copolymerized polyester aqueous dispersion.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 8, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Yuji IWASHITA, Tadahiko MIKAMI
  • Publication number: 20200063006
    Abstract: The present invention aims to provide an adhesive composition having excellent adhesive property and excellent anti-fogging property by way of simple and easy means such as co-extrusion with a substrate film, extrusion coating, solvent coating, etc. According to the present invention, there is provided an adhesive composition, characterized in that it contains a polyester resin (A) and an anti-fogging agent (C), and satisfies the following requirement (1): (1) Glass transition temperature of the polyester resin (A) is from ?30 to 30° C.
    Type: Application
    Filed: January 17, 2018
    Publication date: February 27, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Tadahiko MIKAMI, Masahito TANIGAWA