| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preventing the formation of striped color shading irrespective of whether or not an inorganic filler is contained. SOLUTION: 0.01 to 3 pts.wt. of silicon oxide having a size of 50 nm or below is compounded in 100 pts.wt. of a polypropylene resin composition containing a finely divided inorganic filler such as a pigment, talc or the like. The polypropylene may be a propylene homopolymer or an ethylene/propylene copolymer. Because the silicon oxide compounded in a small amount acts as a color shading preventive, an injection-molded, colored resin composition becomes a uniform colored, molded product, which is free of striped color shading without lowering mechanical properties. |
