Patents by Inventor Daisuke Natsui

Daisuke Natsui 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).

  • Aqueous coating material and painted article
    Patent number: 8735478
    Abstract: The present invention relates to an aqueous coating material containing polymer (I), colloidal silica (II), and nonionic surfactant (III) with an HLB value of 16 or more. The polymer (I) is obtained by copolymerization of monomer mixture (M) that contains 0.2 to 10% by mass of monomer (a) having two or more radically polymerizable groups. The solid content of the colloidal silica (II) is 0.1 to 20 parts by mass with respect to 100 parts by mass of the polymer (I). The content of the nonionic surfactant (III) is 0.01 to 10 parts by mass with respect to 100 parts by mass of the polymer (I). The present invention also relates to a painted article where the aqueous coating material is applied. Therefore, an aqueous coating material and a painted article capable of expressing stain resistance and weather resistance can be provided by reducing a water contact angle.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: May 27, 2014
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Shinsuke Haraguchi, Motomi Tanaka, Junichi Nakamura, Daisuke Natsui
  • AQUEOUS COATING MATERIAL AND PAINTED ARTICLE
    Publication number: 20120077911
    Abstract: The present invention relates to an aqueous coating material containing polymer (I), colloidal silica (II), and nonionic surfactant (III) with an HLB value of 16 or more. The polymer (I) is obtained by copolymerization of monomer mixture (M) that contains 0.2 to 10% by mass of monomer (a) having two or more radically polymerizable groups. The solid content of the colloidal silica (II) is 0.1 to 20 parts by mass with respect to 100 parts by mass of the polymer (I). The content of the nonionic surfactant (III) is 0.01 to 10 parts by mass with respect to 100 parts by mass of the polymer (I). The present invention also relates to a painted article where the aqueous coating material is applied. Therefore, an aqueous coating material and a painted article capable of expressing stain resistance and weather resistance can be provided by reducing a water contact angle.
    Type: Application
    Filed: June 8, 2010
    Publication date: March 29, 2012
    Applicant: MITSUBISHI RAYO CO., LTD.
    Inventors: Shinsuke Haraguchi, Motomi Tanaka, Junichi Nakamura, Daisuke Natsui
  • Crosslinked body and method of producing the same and method of recycling the same
    Patent number: 7151152
    Abstract: This invention relates to a novel crosslinked body obtained by crosslinking plural polymers and having higher characteristics and being easily decrosslinked, and particularly to a crosslinked body obtained by crosslinking plural polymers through mechanical bonding with a rotaxane structure consisting of a shaft and a ring(s). In the crosslinked body, the polymer may correspond to the ring in the rotaxane structure or the shaft in the rotaxane structure.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: December 19, 2006
    Assignee: Bridgestone Corporation
    Inventors: Toshikazu Takata, Yoshio Furusho, Tomoya Oku, Daisuke Natsui, Shinichi Toyosawa, Takeshi Oba
  • Crosslinked body and method of producing the same and method of recycling the same
    Publication number: 20050049383
    Abstract: This invention relates to a novel crosslinked body obtained by crosslinking plural polymers and having higher characteristics and being easily decrosslinked, and particularly to a crosslinked body obtained by crosslinking plural polymers through mechanical bonding with a rotaxane structure consisting of a shaft and a ring(s). In the crosslinked body, the polymer may correspond to the ring in the rotaxane structure or the shaft in the rotaxane structure.
    Type: Application
    Filed: March 2, 2004
    Publication date: March 3, 2005
    Inventors: Toshikazu Takata, Yoshio Furusho, Tomoya Oku, Daisuke Natsui, Shinichi Toyosawa, Takeshi Oba