Biaxially oriented, white flame-retardant polyester film
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United States of America Patent
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Dec 5, 2006
Grant Date -
Apr 21, 2005
app pub date -
Oct 19, 2004
filing date -
Oct 20, 2003
priority date (Note) -
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Abstract
The biaxially oriented, white polyester film of the present invention having improved flame-retardancy, covering ability, flexibility and heat-resistance comprises a polyester resin having an intrinsic viscosity of 0.4 to 0.9 dl/g, a flame-retardant which is alkylene bistetrabromophthalimide or decabromodiphenylalkane, and a fluorescent whitening agent, said polyester film being biaxially drawn at a total draw ratio of 9 or more.
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