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:
Aug. 09, 2022
Filed:
Jan. 12, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Kwonsu Jung, Daejeon, KR;
Joong Jin Han, Chungju-si, KR;
Eunju Park, Daejeon, KR;
Hyun Woog Ryu, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/0222 (2016.01); C08G 75/0254 (2016.01); C08G 75/0281 (2016.01);
U.S. Cl.
CPC ...
C08G 75/0222 (2013.01); C08G 75/0254 (2013.01); C08G 75/0281 (2013.01);
Abstract
A method for preparing polyarylene sulfide that can control a viscosity grade thereof by adjusting the molar ratio of water and amide-based compounds present in a polymerization reaction.