BIAXIALLY ORIENTED FILM FOR ELECTRIC INSULATION
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United States of America Patent
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Issued Date -
Aug 19, 2010
app pub date -
May 28, 2008
filing date -
Jun 4, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A biaxially oriented polyester film which has high dielectric strength at a temperature range from room temperature to a high temperature, maintains high dielectric strength even after it is heated for a long time and is suitable for electric insulation application.The film comprises at least one layer made of a polyester, the polyester of the at least one layer contains a titanium compound as a catalyst and a radical scavenging stabilizer, the content of the radical scavenging stabilizer is 1,000 to 50,000 ppm based on the weight of the polyester, and the amount of the radical scavenging stabilizer chemically bonded to the polyester does not exceed 200 ppm.
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