Invention Grant
- Patent Title: Method for preparing granular polycarbonate
-
Application No.: US17413285Application Date: 2020-01-16
-
Publication No.: US12054583B2Publication Date: 2024-08-06
- Inventor: Hyunju Kim , Hyeon Hui Kim , Jae Hoon Choe , Mooho Hong , Ki Jae Lee , Soyeon Jee
- Applicant: LG Chem, Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: Lerner David LLP
- Priority: KR 20190007087 2019.01.18 KR 20190019348 2019.02.19
- International Application: PCT/KR2020/000819 2020.01.16
- International Announcement: WO2020/149673A 2020.07.23
- Date entered country: 2021-06-11
- Main IPC: C08J3/12
- IPC: C08J3/12 ; C08G64/40 ; C08J3/09

Abstract:
A method for preparing granular polycarbonate particles is disclosed herein. In some embodiments, a method for preparing granulated polycarbonate particles includes mixing a polymerization reaction solution comprising polycarbonate and an organic solvent, and an anti-solvent solution comprising water and an anti-solvent to prepare a mixed solution, heating the mixed solution to remove the organic solvent, and drying or filtering the mixed solution to obtain granular polycarbonate particles. The granular polycarbonate particles having excellent physical properties without using a stabilizer or a surfactant can be obtain.
Public/Granted literature
- US20220025113A1 Method for Preparing Granular Polycarbonate Public/Granted day:2022-01-27
Information query