Method for preparing graft copolymer and thermoplastic resin molded article
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United States of America
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Jan 4, 2022
Grant Date -
Dec 31, 2020
app pub date -
Jan 23, 2019
filing date -
Jan 23, 2019
priority date (Note) -
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Abstract
The present invention relates to a method for preparing a graft copolymer including polymerizing a conjugated diene-based monomer to prepare a small-size conjugated diene-based polymer; enlarging the small-size conjugated diene-based polymer to prepare a large-size conjugated diene-based polymer; and polymerizing the small-size conjugated diene-based polymer, the large-size conjugated diene-based polymer, an aromatic vinyl-based monomer and a vinyl cyan-based monomer to prepare a graft copolymer, wherein a weight ratio of the small-size conjugated diene-based polymer and the large-size conjugated diene-based polymer is 10:90 to 40:60 in preparing the graft copolymer.
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