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:
May. 10, 2022
Filed:
Aug. 05, 2019
Lg Chem, Ltd., Seoul, KR;
Bong Keun Ahn, Daejeon, KR;
Min Jung Kim, Daejeon, KR;
Jang Won Park, Daejeon, KR;
Yong Yeon Hwang, Daejeon, KR;
Wang Rae Joe, Daejeon, KR;
Ji Yoon Jeon, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
Provided are a method of preparing a graft copolymer, a graft copolymer, and a thermoplastic resin molded article including the graft copolymer, the method including: 1) preparing a seed by adding one or more selected from the group consisting of an alkyl (meth)acrylate-based monomer, an aromatic vinyl-based monomer, and a vinyl cyan-based monomer and performing polymerization; 2) in the presence of the seed, preparing a core by adding an alkyl (meth)acrylate-based monomer and performing polymerization; and 3) in the presence of the core, preparing a shell by adding an aromatic vinyl-based monomer and a vinyl cyan-based monomer and performing polymerization, wherein the method further includes adding an alkyl acrylate-based polymer. When the alkyl acrylate-based polymer is included in a graft copolymer, a graft copolymer and a thermoplastic resin molded article excellent in weather resistance, fluidity, mechanical properties, and appearance quality can be provided.