Laminated film for reflection plate
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United States of America Patent
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Sep 18, 2012
Grant Date -
Feb 5, 2009
app pub date -
Jun 16, 2005
filing date -
Jun 17, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A laminated film for a reflecting plate is provided that comprises a layer A and a layer B, the layer A comprising a polyester that comprises substantially no antimony element and preferably comprises 1 to 25 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm and the layer B being in contact with the layer A and comprising a polyester which preferably comprises 31 to 80 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm. This laminated film has a practically satisfactory capability of reflecting visible light, can be produced stably even if inert particles are added in high concentration, hardly has streak-like defects, and can be suitably used as a substrate for a reflecting plate for a liquid crystal display or an internally illuminating electrical billboard.
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