摘要 |
<p>PROBLEM TO BE SOLVED: To provide a molded product in which the drop in a resulting cover product is inconspicuous, and no delamination (a ply separation phenomenon) occurs in a thin brittle part provided on the cover in the production of a large- sized air bag housing cover by injection molding. SOLUTION: This air bag housing cover 1 is obtained by performing an injection molding by use of a thermoplastic elastomer consisting of a mixture of styrene-ethylen-butylene-styrene copolymer (30-40 wt.%), rubber softener (10-40 wt.%) and polypropylene resin (35-50 wt.%), which shows physical properties of a melt flow rate according to JIS K6758 of 1-30 g/10 min., a modulus of bending elasticity according to JIS K7203 of 50-400 MPa, and an Izod impact strength according to JIS K7110 (-35 deg.C, notched) of 30 kJ/cm2 or more to form a molded body having specific physical properties of melt flow rate, bending elasticity and Izod impact strength.</p> |