PROCESS FOR MANUFACTURING POLYAMIDE
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United States of America Patent
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Issued Date -
Feb 11, 2016
app pub date -
Aug 5, 2015
filing date -
Aug 7, 2014
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Abstract
In one or a plurality of embodiments, a process for manufacturing polyamide, with a reduced use of an amide-based solvent in synthesis, is provided. In one or a plurality of embodiments, provided is a process for manufacturing polyamide, including steps (1) to (3): (1) dissolving diamine in a non-amide-based organic solvent or a non-amide-based organic solvent containing 10 mass% or less of an amide-based organic solvent; (2) adding diacid dichloride to a solution obtained in the step (1) and reacting the diamine with the diacid dichloride so as to generate polyamide; and (3) adding a trapping reagent capable of trapping hydrochloric acid.
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