Patents by Inventor Ho Jin Chee

Ho Jin Chee 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).

  • Patent number: 8883870
    Abstract: The foaming window for making a foam useful in the manufacture of artificial leather is expanded through the use of a foamable composition comprising (A) a propylene-?-olefin copolymer, (B) a molecular melt (MM) comprising 4,4?-oxydibenzenesulfonylazide (DPO-BSA) and an antioxidant, and (C) a blowing agent. The foaming window can be expanded such that foaming can occur at 220° C. for 20 to 200 or more seconds.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: November 11, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Yong Chen, Morgan M. Hughes, Ho Jin Chee, Takahiko Ohmura
  • Publication number: 20130303642
    Abstract: The foaming window for making a foam useful in the manufacture of artificial leather is expanded through the use of a foamable composition comprising (A) a propylene-?-olefin copolymer, (B) a molecular melt (MM) comprising 4,4?-oxydibenzenesulfonylazide (DPO-BSA) and an antioxidant, and (C) a blowing agent. The foaming window can be expanded such that foaming can occur at 220° C. for 20 to 200 or more seconds.
    Type: Application
    Filed: September 15, 2010
    Publication date: November 14, 2013
    Inventors: Yong Chen, Mongan M. Hughes, Ho Jin Chee, Takahiko Ohmura
  • Publication number: 20120108134
    Abstract: Artificial leather comprising a multi-layer structure comprises a top coating layer, a middle foam layer, and a bottom fabric layer. The top coating layer comprises a propylene- alpha-olefin copolymer in combination with one or more elastomeric compounds, the foam layer also comprises a propylene-alpha-olefin copolymer in combination with one or more elastomeric compounds plus a blowing agent, and the fabric layer comprises a nonwoven spunbond material.
    Type: Application
    Filed: May 18, 2010
    Publication date: May 3, 2012
    Inventors: Ho Jin Chee, Takahiko Ohmura, Ho-Sung Kang, Kim L. Walton
  • Patent number: 6143828
    Abstract: There is provided olefin-based cross-linked thermoplastic elastomers and a preparation method thereof. The TPE comprises a thermoplastic polyolefin resin; an ethylene-propylene-dien rubber; an ethylene-octene copolymer; and a phenolic cross-linking agent. The TPE shows good tensile strength, tension set and compression set.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: November 7, 2000
    Assignee: Honam Petrochemical Corporation
    Inventors: Ho Jin Chee, Min Jae Hwang, Byung Yun Lim, Chang Hyoo Choi