ABS-BASED GRAFT COPOLYMER, PREPARATION METHOD THEREFOR, AND THERMOPLASTIC RESIN COMPOSITION CONTAINING SAME

• Main Authors: CHAI, Joo Byung, KIM, Young Min, PARK, Eun Seon, JUNG, Yu Sung, KIM, Jong Beom, JEON, Tae Young, KIM, Chang Sull
• Format: Patent
• Language: English; French; Korean
• Published: 05.07.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to an ABS-based graft copolymer, a preparation method, and a thermoplastic resin composition containing the same and, more specifically, the amount of unnecessary residues in an ABS-based graft copolymer latex can be reduced by applying a phosphate ester-based reactive emulsifier, which can act as a metal deactivator, during emulsion polymerization of an ABS-based graft copolymer, and thus the present invention has excellent thermal stability while requiring no heat stabilizers, enables compatibility of the ABS-based graft copolymer and an aromatic vinyl compound-vinyl cyano compound copolymer to be improved by the phosphate ester-based reactive emulsifier, and, ultimately, has improved impact resistance, such as impact strength, or exterior quality such as whiteness, of a final molded product, and greatly improved thermal stability. La présente invention concerne un copolymère greffé à base d'ABS, un procédé de préparation, et une composition de résine thermoplastique le comprenant et, plus spécifiquement, la quantité de résidus inutiles dans un latex copolymère greffé à base d'ABS peut être réduite en appliquant un émulsifiant réactif à base de phosphate ester, qui peut agir comme désactivateur métallique, durant la polymérisation en émulsion d'un copolymère greffé à base d'ABS, et ainsi la présente invention présente une excellente stabilité thermique tout en ne nécessitant aucun agent de stabilisation thermique, permet d'améliorer la compatibilité du copolymère greffé à base d'ABS et d'un copolymère de composé de vinyle aromatique-composé cyano vinylique par l'agent émulsifiant réactif à base de phosphate ester, et, de manière ultime, présente une énergie de rupture améliorée, telle qu'une résistance aux chocs, une qualité extérieure telle que la blancheur, d'un produit moulé final, et une stabilité thermique grandement améliorée. 본 발명은 ABS계 그라프트 공중합체, 이의 제조방법 및 이를 포함하는 열가소성 수지 조성물에 관한 것으로, 보다 상세하게는 금속 비활성제(metal deactivator)로서의 역할을 수행할 수 있는 인산 에스테르계 반응형 유화제를 ABS계 그라프트 공중합체의 유화중합 시 적용하여 ABS계 그라프트 공중합체 라텍스 내 불필요한 잔류물 함량을 저감할 수 있으며, 이에 의해 열안정제를 필요로 하지 않으면서도 열안정성이 우수한 효과가 있으며, 상기 인산 에스테르계 반응형 유화제에 의해 ABS계 그라프트 공중합체와 방향족 비닐 화합물-비닐시안 화합물 공중합체의 상용성이 향상될 수 있으며, 궁극적으로는 최종 성형품의 충격강도 등의 내충격성이나 백색도 등의 외관 품질 향상은 물론 열안정성이 크게 향상되는 효과가 있다.