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:
Jul. 29, 2025
Filed:
Oct. 06, 2020
Lg Chem, Ltd., Seoul, KR;
Jae Bum Seo, Daejeon, KR;
Dae Woo Lee, Daejeon, KR;
Jung Tae Park, Daejeon, KR;
Gyu Sun Kim, Daejeon, KR;
Ji Uk Jang, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present invention relates to a method for producing a diene-based graft copolymer resin, and a diene-based graft copolymer resin produced therefrom, the method including: mixing an aromatic vinyl-based monomer, a diene-based rubber polymer, and a polymerization initiator to prepare a first reactant; mixing a vinyl cyan-based monomer and an antioxidant to prepare a second reactant; adding and polymerizing the first reactant and the second reactant into a polymerization reactor to prepare a polymer; and removing unreacted monomers in a devolatilization tank.