Liquid-crystal polymer film and manufacturing method thereof
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United States of America Patent
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Nov 8, 2005
Grant Date -
Jan 22, 2004
app pub date -
May 16, 2003
filing date -
May 30, 2002
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Abstract
A liquid-crystal polymer film with a melting point of 335° C. or greater and high surface accuracy, and specifically with a surface roughness Ra of 0.1 μm or less both in the machine direction and in the transverse direction, and a manufacturing method thereof. A method for manufacturing a liquid-crystal polymer film with a melting point of 335° C. or greater and a surface roughness Ra of 0.1 μm or less both in the machine direction and in the transverse direction, characterized in that a laminate of a fluororesin porous film and a resin film made from a liquid-crystal polymer or a polymer alloy containing a liquid-crystal polymer is drawn, and the fluororesin porous film is peeled off.
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