| 摘要 |
PURPOSE:To provide a composition material capable of forming resin moldings whose surface can be modified by plasma treatment and which are suitable for use as automobile parts, by mixing polypropylene, EPR or EPT, high-density PE and inorg. powder in a specified ratio. CONSTITUTION:The titled composition material is one used for the production of resin moldings composed mainly of polypropylene, whose surface is irradiated with plasma under vacuum, coated with urethane paint and baked. The composition material is obtd. by mixing 40-85pts.wt. polypropylene, 5-40pts.wt. ethylene/propylene rubber or ethylene/propylene/diene rubber, 5-20pts.wt. high- density polyethylene and 5-20pts.wt. inorg. powder such as talc, calcium carbonate or barium sulfate. By using the compsn., resin moldings having good adhesion to coating film can be obtd. by plasma treatment. |
