Method for producing a fiber-reinforced thermoplastic resin foamed product
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United States of America Patent
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Mar 28, 2000
Issued Date -
N/A
app pub date -
Dec 9, 1996
filing date -
Nov 10, 1993
priority date (Note) -
Expired
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Abstract
A method of the invention can produce a fiber-reinforced thermoplastic resin foamed product having less unevenness in a thickness of a surface layer and excellent mechanical strength. In the method, a fiber-reinforced thermoplastic resin sheet is continuously shaped into a hollow member, and a foaming resin composition containing a thermoplastic resin and a foaming agent is supplied into an interior of the obtained hollow member. The foaming agent is foamed so that the hollow member is shaped into a desired form by the foaming pressure.
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