| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a polyolefinic resin laminated foamed sheet excellent in various physical properties and the moldability of a container by making air bubbles in the foamed sheet fine and suppressing a continuous foaming ratio, in extrusion laminating foam molding of laminating a polypropylene foamed resin layer and a non-foamed polyolefinic resin layer containing a filler. <P>SOLUTION: The method for manufacturing the polyolefinic resin laminated foamed sheet includes melting and kneading a polypropylene resin containing foamable gas and a polyolefinic resin containing the filler in separate extruders, laminating the kneaded resins through a confluent block to supply them to a molding die, and discharging the obtained laminated foamed sheet from the outlet of the molding die. The confluent angle when the molten foamable gas-containing polypropylene resin is allowed to meet with the inside of the molten filler containing polyolefinic resin is 15-60°. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
