The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2024
Filed:
Jan. 10, 2022
Lg Chem, Ltd., Seoul, KR;
Kyung Seog Youk, Daejeon, KR;
Jong Hun Song, Daejeon, KR;
Min Ho Sun, Daejeon, KR;
Hong Min Lee, Daejeon, KR;
Hyun Seok Kim, Daejeon, KR;
Moon Sub Hwang, Daejeon, KR;
Jeong Seok Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Provided is a method for preparing an oligomer including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to prepare a reaction product; supplying a discharge stream from the reactor including the reaction product to a separation device and supplying a lower discharge stream from the separation device to a settling tank; adding an organic flocculant to the settling tank to settle and remove a polymer and supplying the lower discharge stream from the separation device from which the polymer is removed to a high boiling point separation column; and removing a high boiling point material from the lower portion in the high boiling point separation column and supplying an upper discharge stream including an oligomer to a solvent separation column.