Patents by Inventor Young Sam SA

Young Sam SA 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).

  • Method for preparing dialkyl carbonate
    Patent number: 9334228
    Abstract: Disclosed is a method for preparing a dialkyl carbonate, in which a dialkyl carbonate such as dimethyl carbonate is economically prepared in an environmentally-friendly manner at a higher yield while reducing generation of a by-product. The method for preparing the dialkyl carbonate includes reacting urea, an alkyl carbamate having 1 to 3 carbon atoms, or a mixture thereof with a monovalent alcohol having 1 to 3 carbon atoms in the presence of a room temperature ionic liquid and a catalyst including a salt of a transition metal or a rare earth metal.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: May 10, 2016
    Assignee: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Joon Hyun Baik, Jae Cheon Koh, Kyong Tae Kim, Dong Jun Koh, Young Sam Sa, Yun Min Kim, Chul Ung Kim
  • METHOD FOR PREPARING DIALKYL CARBONATE
    Publication number: 20140051880
    Abstract: Disclosed is a method for preparing a dialkyl carbonate, in which a dialkyl carbonate such as dimethyl carbonate is economically prepared in an environmentally-friendly manner at a higher yield while reducing generation of a by-product. The method for preparing the dialkyl carbonate includes reacting urea, an alkyl carbamate having 1 to 3 carbon atoms, or a mixture thereof with a monovalent alcohol having 1 to 3 carbon atoms in the presence of a room temperature ionic liquid and a catalyst including a salt of a transition metal or a rare earth metal.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 20, 2014
    Applicant: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Joon Hyun BAIK, Jae Cheon KOH, Kyong Tae KIM, Dong Jun KOH, Young Sam SA, Yun Min KIM, Chul Ung KIM