Manufacturing method of synthetic resin core material
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United States of America Patent
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Dec 2, 2008
Grant Date -
Nov 30, 2006
app pub date -
May 11, 2006
filing date -
May 24, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A method of manufacturing a synthetic resin core material having a substantially U-shaped cross section which is used in are extruded molding product for holding an opening portion of a vehicle body such as a door or a trunk of an automobile comprises the steps of extruding a synthetic resin to form a core material having a substantially U-shaped cross section, moving the U-shaped core material toward a cutting machine, rotating opposed rotors having blade-shaped portions in the cutting machine, and cutting and forming cut portions or cut slot portions on both lateral sides of the U-shaped core material.
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