METHOD FOR PRODUCING POLYCARBONATE
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United States of America Patent
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Issued Date -
Apr 11, 2024
app pub date -
Nov 16, 2023
filing date -
May 20, 2021
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Abstract
A method for producing a polycarbonate, including reacting a dihydroxy component with a fluorine-containing carbonate component in a presence of a condensation catalyst to obtain a prepolymer, and heating the prepolymer at a temperature lower than a melting temperature of the prepolymer and subjecting the prepolymer to a solid state polymerization while discharging a by-produced fluorine-containing alcohol outside a system,
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