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US 2014/0350210 A1Published application
Copolyesterimides of poly(alkylene naphthalate)s having high glass transition temperature and film made therefrom
AssigneeDuPont Teijin Films U.S. Limited Partnership
InventorsStephen William Sankey, William A. Macdonald, David Turner, Howard Colquhoun, Stephen Meehan
Life of this patent
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Abstract
A copolyester comprising repeating units derived from an aliphatic glycol, naphthalene-dicarboxylic acid, and the monomer of formula (I) wherein n=2, 3 or 4, and films, fibres, moulding compositions and moulded articles made therefrom.
Claims14
A copolyester comprising repeating units derived from an aliphatic glycol, naphthalene-dicarboxylic acid, and the monomer of formula (I):
- wherein n=2, 3 or 4, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester.
(canceled)
Dependencies are inferred from the claim text.