Patents by Inventor Tzong-Shyan Lu

Tzong-Shyan Lu 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).

  • Catalyst composition for hydrogenating 4,4?-methylenedianiline derivatives and method for preparing 4,4?-methylene bis(cyclohexylamine) derivatives using the same
    Patent number: 11964259
    Abstract: A catalyst composition for hydrogenating 4,4?-methylenedianiline derivatives is provided. The catalyst composition includes a carrier including aluminum oxide and magnesium oxide, a rhodium-ruthenium active layer loaded on the surface of the carrier, and a solvent including an organic amine. The weight percentage of magnesium oxide in the carrier is between 12% and 30%. A method for preparing 4,4?-methylene bis(cyclohexylamine) derivatives using the catalyst composition is also provided.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: April 23, 2024
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Huang Chen, Jyun-Da Wu, Tzong-Shyan Lu, Ying-Chieh Lee
  • CATALYST COMPOSITION FOR HYDROGENATING 4,4'-METHYLENEDIANILINE AND METHOD FOR PREPARING 4,4'-METHYLENE BIS(CYCLOHEXYLAMINE) USING THE SAME
    Publication number: 20210197174
    Abstract: A catalyst composition for hydrogenating 4,4?-methylenedianiline is provided. The catalyst composition includes a carrier including aluminum oxide and magnesium oxide, a rhodium-ruthenium active layer loaded on the surface of the carrier, and organic amine solvent. The weight percentage of magnesium oxide in the carrier is between 12% and 30%. A method for preparing 4,4?-methylene bis(cyclohexylamine) using the catalyst composition is also provided.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Huang CHEN, Jyun-Da WU, Tzong-Shyan LU, Ying-Chieh LEE
  • CATALYST COMPOSITION FOR HYDROGENATING 4,4'-METHYLENEDIANILINE DERIVATIVES AND METHOD FOR PREPARING 4,4'-METHYLENE BIS(CYCLOHEXYLAMINE) DERIVATIVES USING THE SAME
    Publication number: 20210197177
    Abstract: A catalyst composition for hydrogenating 4,4?-methylenedianiline derivatives is provided. The catalyst composition includes a carrier including aluminum oxide and magnesium oxide, a rhodium-ruthenium active layer loaded on the surface of the carrier, and a solvent including an organic amine. The weight percentage of magnesium oxide in the carrier is between 12% and 30%. A method for preparing 4,4?-methylene bis(cyclohexylamine) derivatives using the catalyst composition is also provided.
    Type: Application
    Filed: December 28, 2020
    Publication date: July 1, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Huang CHEN, Jyun-Da WU, Tzong-Shyan LU, Ying-Chieh LEE
  • Method for manufacturing carbonaceous nanofibers
    Publication number: 20060269466
    Abstract: The present invention relates to a method for manufacturing carbonaceous nanofibers. The method comprises the following steps: (a) a liquid feed, a carrier gas and a de-coke agent are added into a reactor thereby to form a mixture, wherein the liquid feed includes a hydrocarbon, a catalyst precursor and a sulfide, and the carrier gas includes hydrogen; and (b) the mixture is heated at a temperature ranging from 700 to 1600° C. In this method, the hydrocarbon is used as a carbon source for the carbon material, which forms the carbonaceous nanofibers, a transition metal compound is used as a catalyst precursor, a sulfide is used as an auxiliary catalyst, and water or alcohol is used as a de-coke agent.
    Type: Application
    Filed: May 24, 2006
    Publication date: November 30, 2006
    Applicant: Industrial Technology Research Institute
    Inventors: Shu-Jiuan Huang, Wen-Chuan Shu, Chiou-Hwang Lee, Tzong-Shyan Lu, Yi-Ming Chang