METHOD OF PREPARING VINYL CHLORIDE-BASED COPOLYMER AND VINYL CHLORIDE-BASED COPOLYMER PREPARED THEREBY

    公开(公告)号:US20170283533A1

    公开(公告)日:2017-10-05

    申请号:US15508326

    申请日:2016-06-03

    申请人: LG CHEM, LTD.

    IPC分类号: C08F214/06 C08F222/14

    摘要: The present invention relates to a method of preparing a vinyl chloride-based copolymer having excellent plasticity and processability, a vinyl chloride-based copolymer prepared thereby, a thermoplastic resin composition including the vinyl chloride-based copolymer, and a thermoplastic resin molded article prepared from the composition. Since the preparation method may improve copolymerizability with a vinyl chloride-based monomer by continuously adding or dividedly adding an unsaturated fatty acid ester mixture used as a comonomer during the time of specific polymerization conversion rate, the unreacted unsaturated fatty acid ester mixture may be reduced, and, as a result, the conversion rate of the vinyl chloride-based copolymer may be significantly improved. Thus, plasticity and processability of a vinyl chloride-based copolymer prepared by the above method may be significantly improved.