Patents by Inventor Michiaki SASAHIRA

Michiaki SASAHIRA 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).

  • Cationic blocked polyisocyanate and aqueous composition comprising the same
    Patent number: 8940853
    Abstract: Blocked polyisocyanates, obtained by using a polyisocyanate derived from an aliphatic and/or an alicyclic diisocyanate monomer, as a precursor, and including both of a blocked isocyanate group blocked with a pyrazole compound and a cationic group neutralized with an anion, in one molecule thereof; methods for making and using such blocked polyisocyanates; and compositions of matter including such blocked polyisocyanates.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: January 27, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yoshiyuki Asahina, Michiaki Sasahira
  • CATIONIC BLOCKED POLYISOCYANATE AND AQUEOUS COMPOSITION COMPRISING THE SAME
    Publication number: 20120238697
    Abstract: [Problem] There are provided a blocked polyisocyanate capable of imparting long-term water resistance and water repellency to a base material, and excellent in low-temperature curability and storage stability, and an aqueous composition containing the same. [Solution] The blocked polyisocyanate has both of a blocked isocyanate group blocked with a pyrazole compound and a cationic group neutralized with an anion, in one molecule thereof.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 20, 2012
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yoshiyuki ASAHINA, Michiaki SASAHIRA