Patents by Inventor Jun Choi Pil

Jun Choi Pil 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).

  • Hydrogenated copolymer-containing laminate
    Patent number: 7807241
    Abstract: A hydrogenated copolymer-containing laminate comprising a substrate layer, an adhesive layer, and a hydrogenated copolymer composition layer which is laminated on and bonded to the substrate layer through the adhesive layer, the hydrogenated copolymer composition layer comprising a hydrogenated copolymer (I), and a rubbery polymer (II), wherein the hydrogenated copolymer (I) is obtained by hydrogenating a conjugated diene/vinyl aromatic compound copolymer, the hydrogenated copolymer (I) having the following characteristics (1) to (4): (1) a vinyl aromatic monomer unit content of from more than 50% by weight to 90% by weight, (2) a content of a vinyl aromatic polymer block of not more than 40% by weight, (3) a weight average molecular weight of from 50,000 to 1,000,000, and (4) a hydrogenation ratio of 70% or more, as measured with respect to the double bonds in conjugated diene monomer units.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: October 5, 2010
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masahiro Sasagawa, Katsumi Suzuki, Toshinori Shiraki, Jae Yeon Lee, Jun Choi Pil, Suk Hun Sur, Dae Shik Kim
  • Hydrogenated Copolymer-Containing Laminate
    Publication number: 20080118750
    Abstract: A hydrogenated copolymer-containing laminate comprising a substrate layer, an adhesive layer, and a hydrogenated copolymer composition layer which is laminated on and bonded to the substrate layer through the adhesive layer, the hydrogenated copolymer composition layer comprising a hydrogenated copolymer (I), and a rubbery polymer (II), wherein the hydrogenated copolymer (I) is obtained by hydrogenating a conjugated diene/vinyl aromatic compound copolymer, the hydrogenated copolymer (I) having the following characteristics (1) to (4): (1) a vinyl aromatic monomer unit content of from more than 50% by weight to 90% by weight, (2) a content of a vinyl aromatic polymer block of not more than 40% by weight, (3) a weight average molecular weight of from 50,000 to 1,000,000, and (4) a hydrogenation ratio of 70% or more, as measured with respect to the double bonds in conjugated diene monomer units.
    Type: Application
    Filed: May 14, 2004
    Publication date: May 22, 2008
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Masahiro Sasagawa, Katsumi Suzuki, Toshinori Shiraki, Jae Yeon Lee, Jun Choi Pil, Suk Hun Suk, Dae Sik Kim