Patents by Inventor Kyeong Soo SHIN

Kyeong Soo SHIN 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).

  • Publication number: 20240002568
    Abstract: The present disclosure relates to a method of preparing a polymer including preparing a first polymer mixture by polymerizing while continuously adding a monomer mixture comprising a (meth)acrylate-based monomer, a vinyl aromatic monomer, and a first vinyl cyanide-based monomer to a first reactor; and preparing a second polymer mixture by polymerizing while continuously adding a second vinyl cyanide-based monomer and the first polymer mixture to a second reactor, wherein a starting time of the continuous addition of the second vinyl cyanide-based monomer and the first polymer mixture is a time when a polymerization conversion rate is 40.0 to 55.0%, and a weight ratio of the first vinyl cyanide-based monomer and the second vinyl cyanide-based monomer is 10:90 to 35:65.
    Type: Application
    Filed: August 17, 2022
    Publication date: January 4, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Jae Bum SEO, Dae Woo LEE, Jung Tae PARK, Jung Rae LEE, Ji Uk JANG, Kyeong Soo SHIN