TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The resin composition further contains 0.1-300 parts mass of filler (f) with respect to total of 100 parts mass of polypropylene resin (a) and polyphenylene-ether resin (b), and additive. The filler (f) is chosen from mineral salt, continuous glass fiber, chopped-strand glass fiber, cellulose, glass flake, glass bead, carbon long-fiber, chopped-strand carbon fiber, whisker, mica, clay, talc, magnesium hydroxide, magnesium sulfate, silica, carbon black, titanium oxide, calcium carbonate, potassium titanate, wollastonite, graphite, aluminum nitride, boron nitride, alumina, beryllium oxide, silicon dioxide, magnesium oxide, aluminum nitrate, barium sulfate, electroconductive metal fiber, electroconductive metal flakes, carbon black having electroconductivity, carbon fiber having electroconductivity and carbon nanotube.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The additive is chosen from stabilizer, mold release agent, processing aid, flame retardant, drip inhibiting agent, nucleating agent, ultraviolet blocking agent, dye, pigment, antioxidant, plasticizer and antistatic agent.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The resin composition further contains hydrogenated block copolymer (d), hydrogenated block copolymer (e), filler (f) and additive. The hydrogenated block copolymer (d) is formed by hydrogenating block copolymer consisting of polymeric block (A) containing styrene (d-1) (50-70 %mass) and polymeric block (B) containing butadiene having vinyl bond content of 25-70%. The hydrogenated block copolymer (e) is formed by hydrogenating block copolymer consisting of polymeric block (A) containing styrene (e-1) (15-50 %mass) and polymeric block (B) containing butadiene having vinyl bond content of 25-70%. The resin composition comprises 1-20 parts mass of two types of hydrogenated block copolymer whose ratio of hydrogenated block copolymer (c) and hydrogenated block copolymer (d) is 1-99 %mass/99-1 %mass, or 1-20 parts mass of two types of hydrogenated block copolymer whose ratio of hydrogenated block copolymer (c) and hydrogenated block copolymer (e) is 1-99 %mass/99-1 %mass. The number average molecular weight (Mnd) of polymeric block (A) is 150000 or less. The number average molecular weight (MndA) of polymeric block (A) is 8000 or more, measured in conversion of polystyrene using chloroform solvent by gel permeation chromatography. The number average molecular weight (Mne) of polymeric block (A) is 100000 or less. The number average molecular weight (MneA) of polymeric block (A) is 8000 or more, measured in conversion of polystyrene using chloroform solvent by gel permeation chromatography. The hydrogenated block copolymer (c) has a block structure of A-B-A-B. The hydrogenated block copolymer (c) contains styrene (25-45 %mass). The hydrogenated block copolymer (d) contains styrene (51-70 %mass). The hydrogenated block copolymer (e) contains styrene (25-45 %mass). The polypropylene resin (a) is homo polypropylene and/or block polypropylene. The content of filler (f) is 0.1-300 parts mass with respect to total of 100 parts mass of polypropylene resin (a) and polyphenylene-ether resin (b). Preferred Properties: The polypropylene resin (a) has melting point of 155 degrees C or more, and melt-flow-rate of 0.1-100 g/10 minutes, based on ASTM D1238 measured at 230 degrees C and load of 2.16 kg.