-bis-(hydroxyalkyl)-3,3′,4,4′-diphenylsulfonetetracarboxylic diimide and films made therefrom

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United States of America Patent

PATENT NO 9422399
SERIAL NO

14898618

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Abstract

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A copolyester comprising repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): (Formula (I)) wherein n=2, 3 or 4, Z is S(═O)2, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester; and films, fibers, molding compositions or molded articles comprising said copolyester.

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Patent Owner(s)

Patent OwnerAddress
DUPONT TEIJIN FILMS U S LIMITED PARTNERSHIPCHESTNUT RUN PLAZA 730 974 CENTRE ROAD WILMINGTON DE 19805

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colquhoun, Howard Reading, GB 9 15
Jones, Stephen Reading, GB 187 2680
Sankey, Stephen William Redcar, GB 24 172
Turner, David Redcar, GB 201 2444

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