| 摘要 |
<p>PURPOSE: To obtain a fiber-reinforced thermoplastic resin foam of desired sectional shape having a fiber-reinforced thermoplastic resin skin layer having a uniform thickness and uniform mechanical strength. CONSTITUTION: A fiber-reinforced thermoplastic resin foam C is obtained by the steps of continuously shaping glass fiber-reinforced polyvinyl chloride sheet A1 to a hollow element A2, continuously supplying thermoplastic resin into the element A2 while foaming the foamable polyvinyl chloride made of foaming agent, substantially uniformly spreading the element in the circumferential direction by the foaming pressure, and deforming the spread element A3 while holding the outer peripheral length substantially constant, thereby shaping it to a predetermined sectional shape.</p> |
