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:
Jun. 27, 2023
Filed:
Feb. 19, 2021
Applicants:
SK Innovation Co., Ltd., Seoul, KR;
SK Geo Centric Co., Ltd., Seoul, KR;
Inventors:
Ho Seong Lee, Daejeon, KR;
Sun Joo Kim, Daejeon, KR;
Jae Hyun Park, Daejeon, KR;
Min Gu Kim, Daejeon, KR;
Jang Hoon Ock, Daejeon, KR;
Assignees:
SK Innovation Co., Ltd., Seoul, KR;
SK Geo Centric Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/01 (2006.01); C08F 2/14 (2006.01); C08F 210/02 (2006.01);
U.S. Cl.
CPC ...
C08F 2/01 (2013.01); C08F 2/14 (2013.01);
Abstract
In a method of producing an ethylene-carboxylic acid copolymer, a monomer solution containing a carboxylic acid monomer is supplied from a discharging unit. The carboxylic acid monomer is copolymerized with an ethylene-based monomer. A coefficient of friction between the discharging unit and the monomer solution is maintained as 0.3 or less.