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:
Nov. 29, 2022
Filed:
May. 20, 2020
Lg Chem, Ltd., Seoul, KR;
Jong Hun Song, Daejeon, KR;
Jeong Seok Lee, Daejeon, KR;
You Na Kim, Daejeon, KR;
Hong Min Lee, Daejeon, KR;
Moon Sub Hwang, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Provided is an apparatus for preparing oligomer including: a reactor for carrying out oligomerization reaction by supplying a monomer stream and a solvent stream; and lineand linewhich are separately provided in a lower side of the reactor, wherein lineincludes a first level control valve and lineincludes a second level control valve, and the reactor is periodically alternately operated in first operation mode and second operation mode, thereby switching a pipe through which the product is discharged, so that a plugging phenomenon of the pipe through which the product is discharged and the valve can be prevented.