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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 630593Generated: October 30, 2026

Terephthaloyl chloride → HCID 131731243, compound

https://huagongshe.com/reaction/630593

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTerephthaloyl chlorideHCID 7488—
ReactantP-PhenylenediamineHCID 7814—
ReactantHCID 20556968HCID 20556968—
ProductHCID 131731243HCID 131731243—

Reaction Steps

In some embodiments, the present invention is related to a process that produces fiber derived from the polymerization of 5(6)-amino-2-(p-aminophenyl)benzimidazole, para-phenylenediamine, and terephthaloyl dichloride at high solids (7 weight percent or greater) in NMP/CaCl2 or DMAC/CaCl2, isolates the copolymer crumb, dissolves the isolated copolymer crumb in concentrated sulfuric acid to form a liquid crystalline solution, and spins the solution into fibers.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315923B2
Source datasetuspto-grants-2016_04
ORD IDord-0ab60bc7f7344b8a9bf2cf43994890a6
Source noteuspto-grants-2016_04