Method for continuously preforming composite material in uncured state
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United States of America Patent
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Issued Date -
Mar 6, 2008
app pub date -
Feb 5, 2007
filing date -
Aug 29, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a method for preforming a prepreg material impregnated with thermosetting resin continuously in an uncured state. Sheets of prepreg material are pulled out from rollers and laminated, which is then bent to a predetermined cross-sectional shape in a bending device. The prepreg material is formed into a long product continuously in a mold having a heater. The temperature and pressure applied to the prepreg material in the mold is selected so that the heating temperature is either room temperature or a heating temperature low enough to prevent the thermosetting resin from gelating, and so that the pressure is within a pressure range enabling the prepreg material to maintain its molded state.
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