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1. (WO2018084417) HIGHLY HEAT-RESISTANT STYRENE-ACRYLONITRILE RESIN AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2018/084417    International Application No.:    PCT/KR2017/009780
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Thu Sep 07 01:59:59 CEST 2017
IPC: C08F 212/14
C08L 25/12
Applicants: LG CHEM, LTD.
주식회사 엘지화학
Inventors: SEO, Jae Bum
서재범
LEE, Dae Woo
이대우
PARK, Jung Tae
박정태
KIM, Gyu Sun
김규선
HAN, Chang Hun
한창훈
Title: HIGHLY HEAT-RESISTANT STYRENE-ACRYLONITRILE RESIN AND PREPARATION METHOD THEREFOR
Abstract:
The present invention provides: a SAN resin capable of greatly improving heat resistance while maintaining productivity, processability, and moldability by significantly reducing the amount of an oligomer by preparing and storing a mixture solution of an N-substituted maleimide monomer and an unsaturated nitrile monomer at a specific temperature, separately injecting the mixture solution and a styrene-based monomer into polymerization reactors, and maintaining the temperature of a first polymerization reactor and a second polymerization reactor at a specific temperature; and a preparation method therefor.