| 摘要 |
PURPOSE:To provide the titled compsn. which gives moldings having excellent coatability after plasma treatment, by blending an inorg. filler and carbon black having a specified average particle size and a specified surface area with a polypropylene resin in a specified ratio. CONSTITUTION:99.5-60wt% polypropylene resin (A) is mixed with 0.5-40wt% inorg. filler (B) (e.g. calcium carbonate or talc). Further, 0.01-0.6pts.wt. carbon black (C) (e.g. furnace black or channel black) having an average particle size of 5-40mmu and a specific surface area of 50-1,100m<2>/g is blended with 100pts. wt. said filled polypropylene resin to obtain the desired filled polypropylene resin compsn. When the surface of a molding obtd. from the compsn. is treated with plasma and coated, a coating film having excellent peel strength, hot water resistance, etc., can be formed. |
