Method for preparing graft copolymer and graft copolymer prepared thereby
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United States of America Patent
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May 17, 2022
Grant Date -
Jun 25, 2020
app pub date -
Oct 26, 2018
filing date -
Nov 1, 2017
priority date (Note) -
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Abstract
Provided are a method for preparing a graft copolymer and a graft copolymer prepared thereby, the method comprising: preparing a reaction solution comprising a copolymer comprising a unit derived from a diene-based monomer and a unit derived from an alkene-based monomer, an aromatic vinyl-based monomer, a vinyl cyan-based monomer, and a reaction solvent; and adding the reaction solution to perform primary bulk polymerization at 100 to 110° C., wherein the copolymer comprises the unit derived from a diene-based monomer in an amount of 5 to 10 wt %, and the graft copolymer has an average rubber particle size of 2 to 5μm.
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