Patents by Inventor Danbi HAN

Danbi HAN 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 Recycled Polycarbonate And Recycled Polycarbonate
    Publication number: 20240218145
    Abstract: A method for preparing recyclable polycarbonate and recyclable polycarbonate are described herein, and the method comprises using a phenol end-capper.
    Type: Application
    Filed: September 29, 2022
    Publication date: July 4, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Seog Jae Seo, Gyoungsik Kim, Gyeongho Seon, Chang Hwan Ju, Danbi Han, Jae Hoon Choe
  • Method for preparation of water-treatment separation membrane and water-treatment separation membrane prepared thereby
    Patent number: 11944940
    Abstract: Provided is a method for manufacturing a water-treatment membrane, the method including bringing an aqueous solution including free chlorine and a halogen ion into contact with a polyamide active layer, wherein the free chlorine is present in an amount from 150 ppm to 400 ppm and the halogen ion is present in an amount from 150 ppm to 400 ppm based on the aqueous solution, and a water-treatment membrane manufactured using the same.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Hyelim Kang, Danbi Han, Eun Woo Cho, Hyungjoon Jeon, Chong Kyu Shin, Lakwon Choi
  • Waste Plastic Recycling Process
    Publication number: 20230374248
    Abstract: A waste plastic recycling process includes preparing a first solution by dissolving waste plastics in an organic solvent; adding an adsorbent to the first solution; recrystallizing plastics by adding 60 parts by weight or more of a compound having a Hansen solubility parameter (HSP) of 5 to 14 with respect to polycarbonate based on 100 parts by weight of the total weight of the first solution; and collecting the recrystallized plastics. A method for preparing recyclable plastics thereof is also provided.
    Type: Application
    Filed: June 21, 2022
    Publication date: November 23, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Gyoungsik Kim, Seog Jae Seo, Gyeongho Seon, Chang Hwan Ju, Danbi Han, Jae Hoon Choe
  • METHOD FOR PREPARATION OF WATER-TREATMENT SEPARATION MEMBRANE AND WATER-TREATMENT SEPARATION MEMBRANE PREPARED THEREBY
    Publication number: 20210113969
    Abstract: Provided is a method for manufacturing a water-treatment membrane, the method including bringing an aqueous solution including free chlorine and a halogen ion into contact with a polyamide active layer, wherein the free chlorine is present in an amount from 150 ppm to 400 ppm and the halogen ion is present in an amount from 150 ppm to 400 ppm based on the aqueous solution, and a water-treatment membrane manufactured using the same.
    Type: Application
    Filed: January 18, 2019
    Publication date: April 22, 2021
    Inventors: Hyelim KANG, Danbi HAN, Eun Woo CHO, Hyungjoon JEON, Chong Kyu SHIN, Lakwon CHOI