Patents by Inventor Moo Soo Park

Moo Soo Park 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).

  • Pigment dispersions and black water-reducing agent for cement
    Patent number: 8057593
    Abstract: The present invention relates to a pigment dispersion and a black water-reducing agent, more particularly, to a pigment dispersion comprising a carbon black whose surface is modified with an aminosilane compound and a polycarboxylic acid-based water-reducing agent, and a black water-reducing agent using the same. The present invention is characterized in that the surface-modified carbon black with an aminosilane compound is water-dispersed by using a polycarboxylic acid-based water-reducing agent as a dispersing agent having better performance than a naphthanlene-based water-reducing agent. Therefore, the present invention can display black color of the water-reducing agent and cement at the same time and improve the flowability of cement owing to the presence of carbon black in the form of nanoparticles, which enables to manufacture ultrahigh strength concrete.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: November 15, 2011
    Assignee: OCI Company Ltd
    Inventors: Hae Yoon Ryu, Kwang Eui Yoon, Sang Je Cho, Moo Soo Park, Yo Bok Park, Se In Yang