THERMOPLASTIC RESIN COMPOSITION, PREPARATION METHOD THEREFOR, AND MOLDED PRODUCT MANUFACTURED THEREFROM

• Main Authors: KIM, Tae Hoon, AN, Yong Hee, CHO, Wangrae, KIM, Ho Hoon, PARK, Chun Ho, SUNG, Da Eun, JANG, Jeongmin
• Format: Patent
• Language: English; French; German
• Published: 01.09.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.05 to 0.15 µm as a core, an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.3 to 0.6 µm as a core, an aromatic vinyl polymer (B-1), and a heat-resistant aromatic vinyl polymer (B-2); and 0.5 to 10 parts by weight of a polyolefin elastomer (C). Within this range, the thermoplastic resin composition may have a heat deflection temperature (HDT) of 89 °C or more.According to the present invention, a thermoplastic resin composition that satisfies both economics and chemical resistance and has excellent heat resistance and impact strength by including specific additives at low cost compared to conventional additives for increasing chemical resistance, a method of preparing the thermoplastic resin composition, and a molded article manufactured using the thermoplastic resin composition may be provided.