| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylindrical molding which suppresses a local crack on a molten layer or a softened layer of polyimide-based resin particles even when including fluorine resin particles.SOLUTION: A cylindrical molding 10 has a molten layer or a softened layer of polyimide-based resin particles of a layer-like mixture which includes thermoplastic polyimide-based resin particles that has a volume average particle diameter of 40 μm or more and 2 mm or less and excludes polyether imide resin particles, and fluorine resin particles having a volume average particle diameter of 0.5 μm or more and 20 μm or less, or has a molten layer or a softened layer of polyimide-based resin particles of a layer-like mixture which includes thermoplastic polyimide-based resin particles having a volume average particle diameter of 40 μm or more and 2 mm or less, and fluorine resin particles having a volume average particle diameter of 0.5 μm or more and 3 μm or less (for instance, has layers as outermost layer 11).SELECTED DRAWING: Figure 2 |
