| 摘要 |
PURPOSE:To obtain a resin composition having excellent spreadability, weatherability and impact resistance by mixing a polypropylene-based resin composition with a hindered amine-based organic compound and 3-(N-salicyloyl) amino-1,2,4-triazole. CONSTITUTION:(A) 90-40wt.% crystalline ethylene-propylene block copolymer, preferably containing 5-30wt.% ethylene and >=65wt.% boiling n-heptane-insoluble component is mixed with (B) 8-40wt.% thermoplastic elastomer, preferably ethylene-propylene(-diene) copolymer containing 10-90wt.% propylene and having 15-100 Mooney viscosity and (C) 2-20wt.% inorganic filler having preferably <=6mum average particle diameter and containing <=5wt.% particles having >=10mum average particle diameter to obtain a resin composition. Then, 100 pts.wt. resultant resin composition is mixed with (D) 0.05-1 pt.wt. hindered amine- based organic compound and (E) 0.01-0.5 pt.wt. 3-(N-salicyloyl)amino-1,2,4-triazole to afford the objective resin composition. |
