Patents by Inventor Ibuki SHIMOTOMAI

Ibuki SHIMOTOMAI 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).

  • ACRYLIC BLOCK COPOLYMER, (METH)ACRYLIC BLOCK COPOLYMER LATEX, (METH)ACRYLIC BLOCK COPOLYMER LATEX COMPOSITION, AND SHAPED OBJECT
    Publication number: 20240132649
    Abstract: A (meth)acrylate-based block copolymer including a polymer block and a (meth)acrylate-based polymer block, wherein: the (meth)acrylate-based block copolymer contains 5 to 30% by mass of the polymeric block and 70 to 95% by mass of the (meth)acrylate-based polymer block with respect to 100% by mass of the (meth)acrylate-based block copolymer; the polymer block has a monomer unit derived from a monomer; when the monomer is polymerized alone, a polymer with a glass transition temperature of 80° C. or higher can be obtained; and a tensile strength at break measured in accordance with JIS K 6251 of a film obtained by immersion-molding a (meth)acrylate-based block copolymer latex containing the (meth)acrylate-based block copolymer and heat-treating at 130° C. for 30 minutes is 14 MPa or more.
    Type: Application
    Filed: March 16, 2022
    Publication date: April 25, 2024
    Applicant: DENKA COMPANY LIMITED
    Inventors: Wataru NISHINO, Yushi KUMAGAI, Ibuki SHIMOTOMAI, Yutaka SAITO