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:
Dec. 09, 2025
Filed:
Nov. 19, 2021
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Ji Uk Jang, Daejeon, KR;
Dae Woo Lee, Daejeon, KR;
Jae Bum Seo, Daejeon, KR;
Jung Tae Park, Daejeon, KR;
Jung Rae Lee, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 285/00 (2006.01);
U.S. Cl.
CPC ...
C08F 285/00 (2013.01);
Abstract
The present disclosure relates to a method of preparing a graft polymer, which includes: performing primary continuous polymerization by adding a diene-based rubber polymer and an aromatic vinyl-based monomer to a first reactor; and performing secondary continuous polymerization by adding the polymerization product discharged from the first reactor, a maleimide-based monomer, and a vinyl cyanide-based monomer to a second reactor.