METHOD FOR IMPROVING OIL RESISTANCE AND DEMOLDABILITY OF AIR DUCT FOR AUTOMOBILE

摘要

PROBLEM TO BE SOLVED: To provide a method for improving oil resistance of an air hose for automobile constituted of an olefin-based thermoplastic elastomer (TPO) and demoldability of the air hose in injection molding and to provide the air hose for automobile having excellent demoldability and oil resistance. SOLUTION: Oil resistance and demoldability of the air hose for automobile are improved by compounding a graft copolymer composition (B) containing a graft copolymer (B1) formed of a backbone segment constituted of a propylene polymer and a branch segment constituted of a nitrogen-containing vinyl polymer, and a fatty acid amide (B2) to an olefin-based thermoplastic elastomer (A) and injection-molding the resultant compounded product. COPYRIGHT: (C)2011,JPO&INPIT