| 摘要 |
PURPOSE:To produce the titled molding having no void at the interface between a layer of silane-crosslinked polyolefin and a layer of another rubber or plastic, by solidifying a melt-molding product of both of the layers by cooling under pressure. CONSTITUTION:A silane-crosslinkable polyolefin formed by mixing a polyolefin with an organosilane compound and a silanol condensation catalyst and another rubber or plastic (e.g., ethylene-vinyl acetate copolymer) are coextruded through the die C of an extruder B to form a melt molding product. This product is led to the body of a pressure cooling apparatus A directly connected to the die C, where it is solidified by cooling with water injected from shower rings 13 at a pressure of 0.2kg/cm<2> exerted by N2 gas or air supplied from a cylinder or a compressor 15.
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