METHOD FOR PREPARING COPOLYMER, COPOLYMER PREPARED THEREFROM, AND THERMOPLASTIC RESIN COMPOSITION COMPRISING THE SAME
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United States of America Patent
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May 11, 2023
app pub date -
Nov 18, 2021
filing date -
Nov 20, 2020
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Abstract
The present disclosure relates to a method for preparing a copolymer, a copolymer prepared therefrom, and a thermoplastic resin composition including the copolymer. The method includes introducing and polymerizing an aromatic vinyl-based monomer, a vinyl cyan-based monomer, and an imide-based monomer, wherein the imide-based monomer is introduced at once in an amount of 1 wt % to 24 wt % before the start of polymerization, and is continuously introduced in an amount of 76 wt % to 99 wt % from the start of the polymerization.
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