METHOD FOR FORMING A THERMOPLASTIC COMPOSITE
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United States of America Patent
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Issued Date -
Mar 26, 2009
app pub date -
Nov 21, 2006
filing date -
Nov 21, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is directed to a method for isothermally thermoforming a thermoplastic composite, which composite comprises a matrix and a reinforcement, both issued of a semi-crystalline polymer of the same class, comprising the steps of: i) placing a stack of said thermoplastic composite, having a temperature below the sealing or melting point of said matrix, in a mould;, which mould has a temperature between the sealing or melting point of said matrix and the melting point of said reinforcement; ii) closing said mould; and iii) opening the mould after a dwell time; wherein the temperature of said mould is between the sealing point of said matrix and the melting point of said reinforcement, at least for a period of time after step ii).
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