Examples of such resins include polyolefin resins such as polyethylene, polypropylene and the like; polyester resins such as polyethylene terephthalate, polyethylene isophthalate, polyethylene-2,6-naphthalate, polybutylene terephthalate, copolymers thereof and the like; polyamide resins such as polyoxymethylene resins; thermoplastic resins such as polystyrene, poly(meth)acrylate, polyacrylonitrile