Patents by Inventor Mio Minakawa

Mio Minakawa 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).

  • Block polyisocyanate and urethane composition containing the same
    Patent number: 8772434
    Abstract: Disclosed is a block polyisocyanate obtained by blocking at least a part of isocyanate groups of a polyisocyanate, which is derived from an aliphatic diisocyanate and a polyol and satisfies all of the conditions (1)-(5) shown below, with a pyrazole compound. (1) Average number of isocyanate groups: 3.0-20 (2) Diisocyanate monomer trimer concentration: 10-50% by mass (3) Isocyanate group concentration: 5-22% by mass (4) Polyol content concentration: 5-40% by mass (5) Diisocyanate monomer concentration: 3% by mass or less.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: July 8, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yoshiyuki Asahina, Mio Minakawa
  • NOVEL BLOCK POLYISOCYANATE AND URETHANE COMPOSITION CONTAINING THE SAME
    Publication number: 20100256324
    Abstract: Disclosed is a block polyisocyanate obtained by blocking at least a part of isocyanate groups of a polyisocyanate, which is derived from an aliphatic diisocyanate and a polyol and satisfies all of the conditions (1)-(5) shown below, with a pyrazole compound. (1) Average number of isocyanate groups: 3.0-20 (2) Diisocyanate monomer trimer concentration: 10-50% by mass (3) Isocyanate group concentration: 5-22% by mass (4) Polyol content concentration: 5-40% by mass (5) Diisocyanate monomer concentration: 3% by mass or less.
    Type: Application
    Filed: December 12, 2008
    Publication date: October 7, 2010
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yoshiyuki Asahina, Mio Minakawa