Patents by Inventor Bum Gyu Cha

Bum Gyu Cha 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).

  • COMPOSITION FOR PRODUCING BIODEGRADABLE POLYESTER RESIN, AND PRODUCTION METHOD FOR BIODEGRADABLE POLYESTER RESIN
    Publication number: 20160326305
    Abstract: A composition for preparing a biodegradable polyester resin and a method of preparing the biodegradable polyester resin are provided. The composition for preparing a biodegradable polyester resin includes: a dicarboxylic acid, a diol, a catalyst, and a deactivating agent including an element (L) that may reduce the activity of the catalyst, wherein the amount of a metal (M) in the catalyst and the amount of the element (L) satisfy the following condition on the basis of a weight ratio: 1.5?M/L?8.0.
    Type: Application
    Filed: December 24, 2014
    Publication date: November 10, 2016
    Inventors: Jung Ryum, Jong Pil Chun, Bum Gyu Cha