Polyester ether film
AssigneeMitsubishi Engineering-Plastics Corporation
InventorsNobukatsu Wakabayashi, Katsuhiko Sugiura, Tatsuhiko Hatakeyama
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Abstract
The present invention relates to a polyester ether film comprising a polyester ether comprising a dicarboxylic acid moiety comprising principally terephthalic acid, its ester derivative or a mixture thereof, and a diol moiety comprising principally tetramethylene glycol and polytetramethylene oxide glycol, the percentage of the polytetramethylene oxide glycol residue in said polyester ether being 1 to 30% by weight based on the weight of said polyester ether.
Claims7
A polyester ether film comprising a polyester ether comprising a dicarboxylic acid moiety comprising principally terephthalic acid, its ester derivative or a mixture thereof, and a diol moiety comprising principally tetramethylene glycol and polytetramethylene oxide glycol,
- the percentage of the polytetramethylene oxide glycol residue in said polyester ether being 1 to 30% by weight based on the weight of said polyester ether.
Dependencies are inferred from the claim text.