Patents by Inventor Tatsumi Kosaka

Tatsumi Kosaka 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).

  • Strippable coating composition for floors
    Patent number: 9102783
    Abstract: A strippable coating composition for floors which contains at least 50% by weight of an aqueous polyurethane resin relative to the total solid content, wherein the hydroxyl-containing compound component constituting the aqueous polyurethane resin comprises (A) a polyester polyol component prepared from 1,6-hexanediol and either an aliphatic dibasic acid and/or an aromatic dibasic acid, (B) a low-molecular alicyclic diol component, and (C) an unsaturated fatty acid ester polyol. The strippable coating composition can form a coating film that has a tear strength of 0.3N or more, a break strength of 10 MPa or more, and an elongation at break of 50% or more.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: August 11, 2015
    Assignees: RINREI WAX CO., LTD., ADEKA CORPORATION
    Inventors: Konosuke Yagi, Satoshi Kaneda, Tetsuya Umehara, Shimon Nishida, Tamotsu Nagamatsu, Tatsumi Kosaka
  • STRIPPABLE COATING COMPOSITION FOR FLOORS
    Publication number: 20120252958
    Abstract: A strippable coating composition for floors which contains at least 50% by weight of an aqueous polyurethane resin relative to the total solid content, wherein the hydroxyl-containing compound component constituting the aqueous polyurethane resin comprises (A) a polyester polyol component prepared from 1,6-hexanediol and either an aliphatic dibasic acid and/or an aromatic dibasic acid, (B) a low-molecular alicyclic diol component, and (C) an unsaturated fatty acid ester polyol. The strippable coating composition can form a coating film that has a tear strength of 0.3N or more, a break strength of 10 MPa or more, and an elongation at break of 50% or more.
    Type: Application
    Filed: September 15, 2010
    Publication date: October 4, 2012
    Applicants: ADEKA CORPORATION, RINREI WAX CO., LTD.
    Inventors: Konosuke Yagi, Satoshi Kaneda, Tetsuya Umehara, Shimon Nishida, Tamotsu Nagamatsu, Tatsumi Kosaka