Flame retardant polyester film and processed product including the same
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United States of America Patent
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-
Dec 2, 2008
Grant Date -
Aug 19, 2004
app pub date -
Jan 13, 2004
filing date -
Jan 24, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention is a flame-retardant polyester film including resin layers laminated on both surfaces of a polyester film, wherein the resin layer satisfies 15.ltoreq.(Wc.sub.1-Wc.sub.2)/Wc.sub.0.times.100.ltoreq.99 (where Wc.sub.0 represents the weight of the resin layer, Wc.sub.1 represents the weight of the resin layer after the temperature thereof is raised from 25.degree. C. to 600.degree. C. in air, and Wc.sub.2 represents the weight of the resin layer after the temperature thereof is raised from 25.degree. C. to 800.degree. C. in air), and has a non-flammable gas generating rate of 3 to 40 percent over the range of 180.degree. C. to 450.degree. C. The present invention provides a flame-retardant polyester film having an excellent flame retardancy, and adhesive tapes, flexible printed circuits, a membrane switch, a film heater, and a flat cable, each including the flame-retardant polyester film.
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