Back to results
US 5,420,224 AGranted
Thiophene-based polymers
AssigneeThe University of North Carolina at Chapel Hill
InventorsEdward T. Samulski, Joseph M. DeSimone
Life of this patent
Estimating the term…
Abstract
Poly(arylene ether)ketones, polyamides, and poly(benzoxazoles) that contain thiophene rings within the aromatic polymer backbone are disclosed, along with fibers, films, and other articles of manufacture formed therefrom.
Claims21
An aromatic polymer, comprising repeating units of the formula
- --[AB]-- (III)
- wherein A comprises a di(oxazole)benzene unit;
- wherein B comprises an aromatic unit containing at least one thiophene ring of the formula ##STR2## and wherein A is covalently bonded at the free carbon of each oxazolering directly to said at least one thiophene ring of B.
An aromatic polymer comprising repeating units of the formula
- --[AB]-- (III)
- wherein A comprises a di(oxazole)benzene unit;
- wherein B comprises an aromatic unit containing at least one thiophene ring of the formula ##STR3## and wherein A is covalently bonded at the free carbon of each oxazolering directly to said at least one thiophene ring of B, and wherein the polymer forms a mesophase in the melt.
Dependencies are inferred from the claim text.