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. 23, 2022
Filed:
Nov. 09, 2018
Lg Chem, Ltd., Seoul, KR;
Jong Ju Lee, Daejeon, KR;
Jeong Su Choi, Daejeon, KR;
Won Seok Lee, Daejeon, KR;
Roo Da Lee, Daejeon, KR;
Ho Hoon Kim, Daejeon, KR;
Keun Hoon Yoo, Daejeon, KR;
Seok Goo Jang, Daejeon, KR;
Sang Hoo Park, Daejeon, KR;
Hye Jeong Ok, Daejeon, KR;
Hyung Seop Shim, Daejeon, KR;
LG CHEM, LTD, Seoul, KR;
Abstract
The present invention relates to a method for preparing a graft copolymer powder, which includes: performing emulsion polymerization of a conjugated diene polymer, an aromatic vinyl monomer and an alkyl (meth)acrylate monomer to prepare a graft copolymer latex; coagulating the graft copolymer latex; aging the coagulated graft copolymer; preparing a wet powder of the graft copolymer by dehydrating the aged graft copolymer; and adding poly(oxyalkylene)diglycolic acid to the wet powder of the graft copolymer.