STAMPABLE SHEET
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United States of America Patent
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Issued Date -
Oct 15, 2015
app pub date -
Oct 15, 2013
filing date -
Oct 25, 2012
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Abstract
A stampable sheet includes discontinuous carbon fibers and a thermoplastic resin as a matrix resin, wherein viscosity η of the stampable sheet in a state where the matrix resin in the stampable sheet is molten is η0≦η<η0 exp(0.20Vf)(Pa·s), and ratio Z of refined carbon fiber bundles (A) in which Mn/(Ln×D) is less than 8.5×10−1 (mg/mm2) to the total weight of carbon fibers in the stampable sheet is 10≦Z<70 (wt %). The configuration makes it possible to provide a stampable sheet provided with a controlled range of conditions, and to achieve both high flowability during molding and high mechanical properties after molding.
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