| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition capable of giving a molded pipe product having excellent heat resistance and impact strength with good moldability at a low cost, by using a reclaimed polyester as a raw material, to provide a method for molding the product, and to provide a new method for accelerating crystallization of the molded pipe product, capable of producing the molded pipe product having the high heat resistance. SOLUTION: The composition comprises the polyester (A), a high-viscosity polymer (B) having an MFR of≤5g/10 min (at 280°C under a load of 2.16kg) and an HLMFR of≥0.1g/10 min (at 280°C under a load of 21.6kg), and a compatibilizing agent (C). The molded pipe product is produced by subjecting the composition to melting, kneading, and extrusion molding. Further, the crystallization of the molded pipe product is accelerated by keeping the product at 100-200°C in such a state that the molded pipe product is fastened to a supporting material. COPYRIGHT: (C)2005,JPO&NCIPI
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