Patents by Inventor Tae Soo Hwang

Tae Soo Hwang 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).

  • Supported metallocene catalyst, its preparation method and olefin polymerization therewith
    Patent number: 6683016
    Abstract: The present invention relates to supported metallocene catalysts and to new processes for preparing them and olefin polymerization therewith. Specifically, this invention relates to supported catalyst benefiting from the penetration and homogeneous distribution of catalyst components containing one or more metallocenes and activators within porous support particles. A new process for preparing the catalyst of the invention provides for a supported metallocene catalyst, wherein one or more metallocenes and activator, a solvent capable of dissolving them and a porous support are mutually contacted to form a slurry and a sonic wave or vibrating wave in the frequency range of 1-10,000 kHz is applied to the slurry and the solvent is removed and the resultants are dried. The catalyst are useful for olefin polymerization in a slurry and gas phase polymerization process.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: January 27, 2004
    Assignee: Daelim Industrial Co., Ltd.
    Inventors: Hyun-Ki Youn, Sah-Mun Hong, Young-Jae Jun, Tae-Soo Hwang, Sung-Woo Kang, Young-Ju Kim, Tae-Gon Kim
  • Catalyst composition comprising metallocene compound having bulky cycloalkyl-substituted cyclopentadienyl ligand, and process for olefin polymerization using the same
    Publication number: 20030207757
    Abstract: A catalyst composition, suitable for polymerization of low-density and high-molecular weight polyolefin, comprising unsymmetrical unabridged metallocene compound and an aluminoxane is disclosed, wherein the metallocene compound and the aluminoxane are uniformly deposited on a porous support by using an oscillatory wave having the frequency of 20 to 500 kHz, and the activity of the catalyst composition increases when hydrogen is introduced in the polymerization of olefin.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 6, 2003
    Applicant: Daelim Industries Co., Ltd.
    Inventors: Sah Mun Hong, Tae Soo Hwang, Young Jae Jun, Sung Woo Kang, Byoung Keel Sohn, Jin Sook Oh, Hyun Ki Youn
  • Metallocene compounds, metallocene catalysts including the compounds and methods of polymerizing olefins with the catalysts
    Patent number: 6583304
    Abstract: There are disclosed new metallocene compounds and catalysts for olefin polymerization. The metallocene compound is a complex of transition metal and cyclopentadienyl-type ligands substituted with silacycloalkyl group. The metallocene catalyst comprises the above metallocene compound and at least one activator such as aluminoxanes, aromatic boron compounds substituted with fluoride, and modified clays. The metallocene catalyst can be used for polymerization of olefin in liquid phase, slurry phase or gas phase process.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: June 24, 2003
    Assignee: Daelim Industrial Co., Ltd.
    Inventors: Sah Mun Hong, Byoung Keel Sohn, Sung Woo Kang, Tae Soo Hwang, Young Jae Jun, Hyun Ki Youn
  • Metallocene compounds, metallocene catalysts including the compounds and methods of polymerizing olefins with the catalysts
    Publication number: 20010025117
    Abstract: There are disclosed new metallocene compounds and catalysts for olefin polymerization. The metallocene compound is a complex of transition metal and cyclopentadienyl-type ligands substituted with silacycloalkyl group. The metallocene catalyst comprises the above metallocene compound and at least one activator such as aluminoxanes, aromatic boron compounds substituted with fluoride, and modified clays. The metallocene catalyst can be used for polymerization of olefin in liquid phase, slurry phase or gas phase process.
    Type: Application
    Filed: February 16, 2001
    Publication date: September 27, 2001
    Inventors: Sah Mun Hong, Byoung Keel Sohn, Sung Woo Kang, Tae Soo Hwang, Young Jae Jun, Hyun Ki Youn