Terephthaloyl chloride → HCID 131731243, compound

HRID 926424Notes

Reaction equation

HRID 926424 reaction equation
C1(N)C=CC(N)=CC=1.C(Cl)(=O)C1C=CC(C([Cl:16])=O)=CC=1.[CH3:21][N:22]1[C:26](=[O:27])[CH2:25]C[CH2:23]1.[Cl-:28].[Cl-].[Ca+2:30]>>[CH3:25][C:26]([N:22]([CH3:23])[CH3:21])=[O:27].[Cl-:16].[Cl-:28].[Ca+2:30]

Participants

4

Reactant 3

HCID 7488Terephthaloyl chlorideHCID 7814P-PhenylenediamineHCID 20556968HCID 20556968, compound

Product 1

HCID 131731243HCID 131731243, compound

Procedure

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.

Workup

  1. customproduces fiber

Sources & evidence

ORD record
ord-28cc2421afae435dad4f39ae02dbe3f1
Source dataset
uspto-grants-2016_03
Patent number
US09284665B2

Reaction notes

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