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. 31, 2021
Filed:
Jan. 30, 2019
Lg Chem, Ltd., Seoul, KR;
Jong Beom Kim, Daejeon, KR;
Joo Byung Chai, Daejeon, KR;
Yu Sung Jung, Daejeon, KR;
Chang Sull Kim, Daejeon, KR;
Eun Seon Park, Daejeon, KR;
Tae Young Jeon, Daejeon, KR;
Young Min Kim, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to a method for preparing a graft copolymer, which includes polymerizing a first conjugated diene-based polymer, a second conjugated diene-based polymer, an aromatic vinyl-based monomer and a vinyl cyan-based monomer, wherein particle size distribution of the first conjugated diene-based polymer is 0.346 to 0.404, and particle size distribution of the second conjugated diene-based polymer is 0.196 to 0.304, a graft copolymer and a thermoplastic resin molded article.