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process for the manufacture of thick, polyesterfilmen compiled with improved adhesion and the obtained films.
process for the manufacture of thick, polyesterfilmen compiled with improved adhesion and the obtained films.
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机译:厚的聚酯膜的制造方法,其具有改善的粘合性和所得膜。
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摘要
Thick, composite polyester films, well adapted as base films, e.g., for the graphic arts, are comprised of a crystalline or semicrystalline polyester film substrate (A) having a thickness of at least 40 micrometers, said film substrate (A) having a coating, e.g., a coextrudate, of a sulfonated copolyester adhesion primer on at least one of the face surfaces thereof, and said sulfonated copolyester comprising at least 80 mol % of terephthalate recurring units and from 3 to 10 mol % of oxysulfonylate recurring units.
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