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Carl T Brozek, Robert C Daly, Robert H Fehnel, Constantine C Petropoulos: Modified polyester useful as photographic roll film support. Eastman Kodak Company, Robert A Gerlach, Joshua G Levitt, August 11, 1992: US05138024 (11 worldwide citation)

A copolyester is synthesized by reacting a dialkyl ester of an aromatic dicarboxylic acid (e.g., dimethyl terephthalate) with ethylene glycol, low molecular weight poly(ethylene glycol) and a salt of a sulfonic acid-substituted aromatic dicarboxylate (e.g., sodium sulfoisophthalic acid) simultaneous ...


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Brozek Carl Thomas, Daly Robert Curtis: Modified polyester useful as photographic roll film support. Eastman Kodak Company, GERLACH Robert A, August 6, 1992: WO/1992/013021

A copolyester is synthesized by reacting a dialkyl ester of an aromatic dicarboxylic acid (e.g., dimethyl terephthalate) with ethylene glycol, low molecular weight poly(ethylene glycol) and a salt of a sulfonic acid-substituted aromatic dicarboxylate (e.g., sodium sulfoisophthalic acid) simultaneous ...


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