THERMOPLASTIC RESIN COMPOSITION, PRODUCTION METHOD THEREFOR, AND MOLDED ARTICLE COMPRISING SAME

Title:

THERMOPLASTIC RESIN COMPOSITION, PRODUCTION METHOD THEREFOR, AND MOLDED ARTICLE COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2022/019471

Kind Code:

A1

Abstract:

The present disclosure relates to a thermoplastic resin composition, a production method therefor, and a molded article comprising same and, more particularly, to a thermoplastic resin composition, a production method therefor, and a molded article comprising same, wherein the thermoplastic resin composition comprises: A-1) 0.5-45% by weight of a graft copolymer including an acrylate rubber having an average particle diameter of 50-150 nm, an aromatic vinyl compound, and a vinyl cyanide compound; A-2) 20-80% by weight of a graft copolymer including an acrylate rubber having an average particle diameter of 151-600 nm, an aromatic vinyl compound, and a vinyl cyanide compound; and B) 100 parts by weight of a base resin including 10-45% by weight of an α-methylstyrene-based copolymer having a weight average molecular weight of 60,000-180,000 g/mol; and C) 0.5-10 parts by weight of an ultra-high molecular weight copolymer having a weight average molecular weight of 1,000,000-12,000,000 g/mol. According to the present invention, the present invention has excellent mechanical properties such as impact strength, tensile strength, flexural strength, and hardness, as well as having excellent heat resistance and processability, and thus there is an effect of replacing a PVC resin by using existing extruder equipment.

Inventors:

AN YONG HEE (KR)
KIM TAE HOON (KR)
PARK CHUN HO (KR)
SUNG DAEUN (KR)
JOE WANGRAE (KR)
JANG JEONGMIN (KR)

Application Number:

PCT/KR2021/006917

Publication Date:

January 27, 2022

Filing Date:

June 03, 2021

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C08L25/12; B29B11/10; C08K5/00; C08L25/16; C08L33/12; C08L51/04

Foreign References:

KR20190114898A	2019-10-10
KR20110079487A	2011-07-07
KR20140096748A	2014-08-06
KR20180050595A	2018-05-15
KR100781963B1	2007-12-06
KR20200090490A	2020-07-29
KR20210069027A	2021-06-10

Other References: