| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for extrusion molding of a foamed vinyl chloride resin tubular material, capable of using a recycled vinyl chloride resin without a hitch in the extrusion molding of the foamed vinyl chloride resin tubular material. SOLUTION: This method for extrusion molding is to extrude for molding a tubular material from a composition containing a vinyl chloride resin, thermally decomposable type blowing agent, methacrylic acid ester-based resin and filler, in which the recycled vinyl chloride resin for at least a part of the vinyl chloride resin is used, and only an inorganic thermally decomposable type blowing agent is used as the thermally decomposable type blowing agent.</p> |
