Patents by Inventor Hajime Suganuma

Hajime Suganuma 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).

  • CURABLE COMPOSITION, CURED PRODUCT, AND ADHESIVE
    Publication number: 20240010782
    Abstract: Provided are a curable composition, a cured product thereof, and an adhesive. The curable composition contains a blocked isocyanate prepolymer (A) formed from a polyol compound (a1), a polyisocyanate compound (a2), and a blocking agent (a3) as essential raw materials, an epoxy resin (B), and a curing agent (C). The blocking agent (a3) contains a phenol compound having a hydrocarbon group having 12 or more carbon atoms. The curable composition has excellent adhesive properties and resistance to humidity and heat, and can be suitably used for an adhesive and the like.
    Type: Application
    Filed: October 14, 2021
    Publication date: January 11, 2024
    Applicant: DIC Corporation
    Inventors: Ryosuke Ozawa, Hajime Suganuma, Takeshi Yamazaki
  • Water-dispersible polyisocyanate composition, production thereof, and water-based curable composition and application thereof
    Patent number: 7417090
    Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: August 26, 2008
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka
  • Water-dispersible polyisocyanate composition, production thereof, and water-based curable composition and application thereof
    Publication number: 20070049691
    Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.
    Type: Application
    Filed: November 1, 2006
    Publication date: March 1, 2007
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka
  • Water-dispersible polyisocyanate composition, process for its production, water-base curable composition and its application
    Patent number: 7166673
    Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: January 23, 2007
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka
  • Water-dispersible polyisocyanate composition, process for its production, water-base curable composition and its application
    Publication number: 20030069353
    Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.
    Type: Application
    Filed: June 20, 2002
    Publication date: April 10, 2003
    Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka