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:
Mar. 08, 2022
Filed:
Sep. 20, 2018
Lg Chem, Ltd., Seoul, KR;
Jeong Su Choi, Daejeon, KR;
Won Seok Lee, Daejeon, KR;
Roo Da Lee, Daejeon, KR;
Jong Ju Lee, Daejeon, KR;
Keun Hoon Yoo, Daejeon, KR;
Seok Goo Jang, Daejeon, KR;
Sang Hoo Park, Daejeon, KR;
Hye Jeong Ok, Daejeon, KR;
Ho Hoon Kim, Daejeon, KR;
Hyung Seop Shim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present invention relates to a thermoplastic resin composition showing excellent transparency and whitening resistance. The thermoplastic resin composition of the present invention comprises (A) a graft copolymer having a multilayer structure and (B) a thermoplastic copolymer, wherein the graft copolymer having a multilayer structure (A) comprises a core of a conjugated diene-based rubber latex having a weight average particle diameter of 500 Å to 2,000 Å; an intermediate layer; and a graft layer. The glass transition temperature of the intermediate layer is 40° C. or less, the glass transition temperature of the graft layer is 80° C. or more, and the refractive index difference between the graft copolymer (A) and the thermoplastic copolymer (B) is less than 0.01.