PROCESS FOR PREPARING ARAMID COPOLYMER

The invention concerns processes for forming a polymer comprising residues of terephthaloyl chloride, paraphenylene diamine, and a salt of formula I wherein A− is a halogen anion, HSO4−, OH−, NO3−, C2H3O2−, or H2PO4−; the process comprising the steps of: a) forming a mixture comprising salt of formu...

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Bibliographic Details
Main Author LEE, Kiu-Seung
Format Patent
LanguageEnglish
French
German
Published 24.10.2018
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:The invention concerns processes for forming a polymer comprising residues of terephthaloyl chloride, paraphenylene diamine, and a salt of formula I wherein A− is a halogen anion, HSO4−, OH−, NO3−, C2H3O2−, or H2PO4−; the process comprising the steps of: a) forming a mixture comprising salt of formula I and paraphenylene diamine in a solvent system comprising an organic solvent and an inorganic salt; and b) adding terephthaloyl chloride to the mixture and allowing the formation of the polymer.
Bibliography:Application Number: EP20120750637