| 摘要 |
Disclosed is a resin composition for paint, comprising: 35 to 65 wt % of high molecular weight polypropylene-based resin (A) having 100,000 to 300,000 of weight-average molecular weight and 0.30 to 0.70 of mole fraction L value of isotactic chain; 30 to 60 wt % of low molecular weight polypropylene-based resin (B) having 10,000 to 50,000 of weight-average molecular weight and 0.30 to 0.70 of mole fraction L value of isotactic chain; and 0.1 to 5.0 wt % of highly crystalline low molecular weight polypropylene-based resin (C) having 5,000 to 50,000 of weight-average molecular weight and 0.70 to 0.75 of mole fraction L value of isotactic chain. The polypropylene resin composition for paint according to the present invention can be used for spray paint without having to pass through a complicated process such as a polypropylene base discharging treatment, a flame treatment, or an acid treatment, and even without containing chlorine, and has excellent scratch resistance and adherence and has no tagging properties. |
