Wholly aromatic polyamides, processes for preparing them and...

Details Wholly aromatic polyamides, processes for preparing them and... Wholly aromatic polyamides, processes for preparing them and...

C - Chemistry, Metallurgy

08

G

402/241

C08G 69/32 (2006.01) B01D 71/56 (2006.01)

Patent

CA 1322428

- 1 - Abstract of the disclosure HOE 88/F 296 Wholly aromatic polyamides, processes for preparing them and structures formed from them. Aromatic copolyamides, soluble in organic polyamide solvents, comprise at least 95 mol% of the recurrent structural units of the formulae A -OC-Ar-CO- B -HN-Ar'-NH- C : Image D : Image and up to 5 mol% of structural units containing m-bonds. Here, Ar- and -Ar'- are divalent, unsubstituted or substituted aromatic radicals, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position, and -R is a lower alkyl radical.

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